Cisco ONS 15454 Troubleshooting Guide, Release 4.6

General Troubleshooting

This chapter provides procedures for troubleshooting the most common problems encountered when operating a Cisco ONS 15454. To troubleshoot specific ONS 15454 alarms, see "Alarm Troubleshooting." If you cannot find what you are looking for, contact the Cisco Technical Assistance Center (1 800 553-2447).

Note The terms "Unidirectional Path Switched Ring" and "UPSR" may appear in Cisco literature. These terms do not refer to using Cisco ONS 15xxx products in a unidirectional path switched ring configuration. Rather, these terms, as well as "Path Protected Mesh Network" and "PPMN," refer generally to Cisco's path protection feature, which may be used in any topological network configuration. Cisco does not recommend using its path protection feature in any particular topological network configuration.

This chapter includes the following sections on network problems:

•Network Troubleshooting Tests—Describes loopbacks and hairpin circuits, which you can use to test circuit paths through the network or logically isolate faults.

Note For network acceptance tests, refer to the Cisco ONS 15454 Procedure Guide.

•Identify Points of Failure on a DS-N Circuit Path—Explains how to perform the tests described in the "Network Troubleshooting Tests" section on a DS-N circuit.

•Using the DS3XM-6 Card FEAC (Loopback) Functions—Describes the far-end alarm and control (FEAC) functions on the DS3XM-6 card.

•Identify Points of Failure on an Optical Circuit Path—Explains how to perform the tests described in the "Network Troubleshooting Tests" section on an OC-N circuit.

The remaining sections describe symptoms, problems, and solutions that are categorized according to the following topics:

•Restoring the Database and Default Settings—Provides procedures for restoring software data and restoring the node to the default setup.

•PC Connectivity Troubleshooting—Provides troubleshooting procedures for PC and network connectivity to the ONS 15454.

•CTC Operation Troubleshooting—Provides troubleshooting procedures for CTC login or operation problems.

•Circuits and Timing—Provides troubleshooting procedures for circuit creation and error reporting as well as timing reference errors and alarms.

•Fiber and Cabling—Provides troubleshooting procedures for fiber and cabling connectivity errors.

•Power and LED Tests—Provides troubleshooting procedures for power supply and LED indicator problems.

1.1  Network Troubleshooting Tests

Use loopbacks and hairpin circuits to test newly created SONET circuits before running live traffic or to logically locate the source of a network failure. All ONS 15454 OC-N cards, transponder cards (TXP, TXPP), muxponder (MXP) cards, and G-Series Ethernet cards allow loopbacks and hairpin test circuits. Other cards do not allow loopbacks. These include ONS E-Series Ethernet, ML-Series Ethernet, and DWDM cards such as OPT-BST, OPT-PRE, OSC-CSM, band add-drop cards, and channel add-drop cards.

Caution Facility (line) or terminal loopbacks can be service-affecting. To protect traffic, apply a lockout or Force switch to the target loopback port. For more information about these operations, refer to the Cisco ONS 15454 Procedure Guide.

Caution On OC-N cards, a facility (line) loopback applies to the entire card and not an individual circuit. Exercise caution when using loopbacks on an OC-N card carrying live traffic.

A facility (line) loopback tests the line interface unit (LIU) of a card, the EIA (electrical interface assembly), and related cabling. After applying a facility loopback on a port, use a test set to run traffic over the loopback. A successful facility loopback isolates the LIU, the EIA, or the cabling plant as the potential cause of a network problem. Figure 1-1 shows a facility loopback on a DS-N card.

Figure 1-1 Facility (Line) Loopback Process on a DS-N Card

To test the LIU on an OC-N card, connect an optical test set to the OC-N port and perform a facility (line) loopback or use a loopback or hairpin circuit on a card that is farther along the circuit path. Figure 1-2 shows a facility loopback on an OC-N card.

Figure 1-2 Facility (Line) Loopback Process on an OC-N Card

Caution Before performing a facility (line) loopback on an OC-N card, be sure the card contains at least two data communications channel (DCC) paths to the node where the card is installed. A second DCC provides a nonlooped path to log into the node after the loopback is applied, enabling you to remove the facility loopback. Ensuring a second DCC is not necessary if you are directly connected to the ONS 15454 containing the loopback OC-N card.

A terminal loopback tests a circuit path as it passes through the cross-connect card (XC10G) and loops back from the card with the loopback. Figure 1-3 shows a terminal loopback on an OC-N card. (Ethernet, transponder, and muxponder loopbacks follow the same model.) The test-set traffic comes into the DS-N card and goes through the cross-connect card to the OC-N card. The terminal loopback on the OC-N card turns the signal around before it reaches the LIU and sends it back through the cross-connect card to the DS-N card. This test verifies that the cross-connect card and terminal circuit paths are valid, but does not test the LIU on the OC-N card.

Setting a terminal loopback on the G-Series card might not stop the Tx Packets counter or the Rx Packet counters on the CTC card-level view Performance > Statistics page from increasing. The counters can increment even though the loopbacked port has temporarily disabled the transmit laser and is dropping any received packets.

The Tx Packet statistic continues to increment because the statistic is not based on the packets transmitted by the transmit (Tx) laser but on the Tx signal inside the G-Series card. In normal in-service port operation, the Tx signal being recorded does result in the Tx laser transmitting packets, but in a terminal loopback this signal is being looped back within the G-Series card and does not result in the Tx laser transmitting packets.

The Rx Packet counter might also continue to increment when the G-Series card is in terminal loopback. Receive (Rx) packets from any connected device are dropped and not recorded, but the internally looped back packets follow the G-Series card's normal receive path and register on the Rx Packet counter.

Figure 1-3 Terminal Loopback Process on an OC-N Card

Figure 1-4 shows a terminal loopback on a DS-N card. The test-set traffic comes in on the OC-N card and goes through the cross-connect card to the DS-N card. The terminal loopback on the DS-N card turns the signal around before it reaches the LIU and sends it back through the cross-connect card to the OC-N card. This test verifies that the cross-connect card and terminal circuit paths are valid, but does not test the LIU on the DS-N card.

Figure 1-4 Terminal Loopback Process on a DS-N Card

ONS 15454 port loopbacks either terminate or bridge the loopback signal. In the ONS 15454 system, all optical, electrical, Ethernet, and TXP/MXP facility loopbacks are terminated as shown in Table 1-1. During terminal loopbacks, some ONS cards bridge the loopback signal while others terminate it.

If an optical, electrical, Ethernet, and TXP/MXP port terminates a terminal or facility loopback signal, this means that the signal only loops back to the originating port and is not transmitted downstream. If the port bridges a loopback signal, the signal loops back to the originating port and is also transmitted downstream.

All ONS 15454 card bridging and terminating behaviors are listed in Table 1-1. When a port on a card in the left column of this table originates a terminal or facility loopback, the signal behaves as listed in the middle and right columns.

Note In Table 1-1, no AIS signal is injected if the signal is bridged. If the signal is terminated, an applicable AIS is injected downstream for all cards except Ethernet cards.

The loopback itself is listed in the Alarms window. For example, the window would list the LPBKTERMINAL condition or LPBKFACILITY condition for a tested port.

In addition to the Alarms window listing, the following behaviors occur:

•If a DS-N, OC-N, or EC-1 port is placed in out of service (OOS) state, it injects an AIS signal upstream and downstream.

•If a DS-N, OC-N, or EC-1 port is placed in out of service auto in-service (OOS_AINS) state or in the out of service maintenance (OOS_MT) state before loopback testing, the port clears the AIS signal upstream and downstream unless there is a service-affecting defect that would also cause an AIS signal to be injected. For more information about placing ports into alternate states for testing, refer to the Cisco ONS 15454 Procedure Guide.

•If a TXP_MR_2.5G port is placed in the out of service maintenance (OOS_MT) state before loopback testing, the port raises an Alarms Suppressed for Maintenance (AS-MT) condition during the loopback on the client side port.

•If a TXP_MR_10G port is placed in the out of service maintenance (OOS_MT) state before loopback testing, the port raises a Loss of Signal (LOS) alarm on the DWDM-side port during the loopback.

•If an MXP_2.5_10G port is placed in the out of service maintenance (OOS_MT) state before loopback testing, the port raises a Loss of Signal (LOS) alarm on the DWDM-side port during the loopback.

Bridged DS-N and OC-N terminal loopback examples are shown in Figure 1-5 and Figure 1-6.

Figure 1-5 Terminal Loopback on a DS-N Card with Bridged Signal

Figure 1-6 Terminal Loopback on an OC-N Card with Bridged Signal

A hairpin circuit brings traffic in and out on a DS-N port rather than sending the traffic onto the OC-N card. A hairpin loops back only the specific STS or VT circuit and does not cause an entire OC-N port to loop back, thus preventing a drop of all traffic on the OC-N port. The hairpin allows you to test a specific STS or VT circuit on nodes running live traffic. Figure 1-9 shows the hairpin circuit process on a DS-N card.

Figure 1-7 Hairpin Circuit Process on a DS-N Card

A cross-connect loopback tests a circuit path as it passes through the cross-connect card and loops back to the port being tested. Testing and verifying circuit integrity often involves taking down the whole line; however, a cross-connect loopback allows you to create a loopback on any embedded channel at supported payloads at the STS-1 granularity and higher. For example, you can loop back a single STS-1, STS-3c, STS-6c, etc. on an optical facility (line) without interrupting the other STS circuits.

The following restrictions apply to cross-connect loopbacks:

•You can create a cross-connect loopback on all working or protect optical ports unless the protect port is used in a 1+1 protection group and is in working mode.

•If a terminal or facility loopback exists on a port, you cannot use the cross-connect loopback.

1.2  Identify Points of Failure on a DS-N Circuit Path

Facility (line) loopbacks, terminal (inward) loopbacks, and hairpin circuits are often used to test a circuit path through the network or to logically isolate a fault. Performing a loopback test at each point along the circuit path systematically isolates possible points of failure.

The example in this section tests a DS-N circuit on a two-node, bidirectional line switched ring (BLSR). Using a series of facility loopbacks, terminal loopbacks, and hairpins, the path of the circuit is traced and the possible points of failure are tested and eliminated. A logical progression of five network test procedures apply to this sample scenario:

Note The test sequence for your circuits will differ according to the type of circuit and network topology.

1. A facility (line) loopback on the source node DS-N

2. A hairpin on the source node DS-N

3. A terminal (inward) loopback on the destination node DS-N

4. A hairpin on the destination node DS-N

5. A facility (line) loopback on the destination DS-N

Note All loopback tests require on-site personnel.

1.2.1  Perform a Facility (Line) Loopback on a Source DS-N Port

The facility (line) loopback test is performed on the node source port in the network circuit, in this example, the DS-N port in the source node. Completing a successful facility (line) loopback on this port isolates the cabling, the DS-N card, and the EIA as possible failure points. Figure 1-10 shows an example of a facility loopback on a source DS-N port.

Figure 1-8 A Facility (Line) Loopback on a Circuit Source DS-N Port

A hairpin circuit brings traffic in and out on a DS-N port rather than sending the traffic onto the OC-N card. A hairpin loops back only the specific STS or VT circuit and does not cause an entire OC-N port to loop back, thus preventing a drop of all traffic on the OC-N port. The hairpin allows you to test a specific STS or VT circuit on nodes running live traffic. Figure 1-9 shows the hairpin circuit process on a DS-N card.

Figure 1-9 Hairpin Circuit Process on a DS-N Card

A cross-connect loopback tests a circuit path as it passes through the cross-connect card and loops back to the port being tested. Testing and verifying circuit integrity often involves taking down the whole line; however, a cross-connect loopback allows you to create a loopback on any embedded channel at supported payloads at the STS-1 granularity and higher. For example, you can loop back a single STS-1, STS-3c, STS-6c, etc. on an optical facility (line) without interrupting the other STS circuits.

The following restrictions apply to cross-connect loopbacks:

•You can create a cross-connect loopback on all working or protect optical ports unless the protect port is used in a 1+1 protection group and is in working mode.

•If a terminal or facility loopback exists on a port, you cannot use the cross-connect loopback.

1.3  Identify Points of Failure on a DS-N Circuit Path

Facility (line) loopbacks, terminal (inward) loopbacks, and hairpin circuits are often used to test a circuit path through the network or to logically isolate a fault. Performing a loopback test at each point along the circuit path systematically isolates possible points of failure.

The example in this section tests a DS-N circuit on a two-node, bidirectional line switched ring (BLSR). Using a series of facility loopbacks, terminal loopbacks, and hairpins, the path of the circuit is traced and the possible points of failure are tested and eliminated. A logical progression of five network test procedures apply to this sample scenario:

Note The test sequence for your circuits will differ according to the type of circuit and network topology.

West to east direction (left to right):

1. A facility (line) loopback on the source node DS-N

2. A hairpin on the source node DS-N

3. An XC loopback on the destination node OC-N STS (carrying the DS-N circuit)

4. A terminal (inward) loopback on the destination node DS-N

East to west direction (right to left):

1. A facility (line) loopback on the destination node DS-N

2. A hairpin on the destination node DS-N

3. An XC loopback on the source node OC-N STS (carrying the DS-N circuit)

4. A terminal (inward) loopback on the source node DS-N

Note All loopback tests require on-site personnel.

1.3.1  Perform a Facility (Line) Loopback on a Source DS-N Port (West to East)

The facility (line) loopback test is performed on the node source port in the network circuit, in this example, the DS-N port in the source node. Completing a successful facility (line) loopback on this port isolates the cabling, the DS-N card, and the EIA as possible failure points. Figure 1-10 shows an example of a facility loopback on a source DS-N port.

Figure 1-10 A Facility (Line) Loopback on a Circuit Source DS-N Port

Caution Performing a loopback on an in-service circuit is service-affecting. To protect traffic, apply a lockout or Force switch to the target loopback port. For more information about these operations, refer to the Cisco ONS 15454 Procedure Guide.

Note DS-3 facility (line) loopbacks do not transmit an alarm indication signal (AIS) condition in the direction away from the loopback. Instead of a DS-3 AIS, a continuance of the signal transmitted to the loopback is provided.

Create the Facility (Line) Loopback on the Source DS-N Port

Step 1 Connect an electrical test set to the port you are testing.

Use appropriate cabling to attach the Tx and Rx terminals of the electrical test set to the EIA connectors or DSx panel for the port you are testing. The Tx and Rx terminals connect to the same port. Adjust the test set accordingly.

Step 2 In node view, double-click the DS-N card to open the card view.

Step 3 Depending upon the card type, click the Maintenance > Loopback tabs, Maintenance > DS1 tabs, or Maintenance > DS3 tabs.

Step 4 Choose OOS_MT from the State column for the port being tested. If this is a multiport card, select the appropriate row for the port being tested.

Step 5 Choose Facility (Line) from the Loopback Type column for the port being tested. If this is a multiport card, select the appropriate row for the port being tested.

Step 6 Click Apply.

Step 7 Click Yes in the confirmation dialog box.

Note It is normal for the "LPBKFACILITY (DS1, DS3)" condition on page 2-141 to appear during loopback setup. The condition clears when you remove the loopback.

Step 8 Complete the "Test and Clear the Facility (Line) Loopback Circuit" procedure.

Test and Clear the Facility (Line) Loopback Circuit

Step 1 If the test set is not already sending traffic, send test traffic on the loopback circuit.

Step 2 Examine the traffic received by the test set. Look for errors or any other signal information that the test set is capable of indicating.

Step 3 If the test set indicates a good circuit, no further testing is necessary with the facility loopback. Double-click the card to open the card view.

Step 4 Depending upon the card type, click the Maintenance > Loopback tabs, Maintenance > DS1 tabs, or Maintenance > DS3 tabs.

Step 5 Choose None from the Loopback Type column for the port being tested.

Step 6 Choose the appropriate state (IS, OOS, OOS_AINS) from the State column for the port being tested.

Step 7 Click Apply.

Step 8 Click Yes in the confirmation dialog box.

Step 9 Complete the "Perform a Hairpin Test on a Source Node Port (West to East)" procedure. If the test set indicates a faulty circuit, the problem might be a faulty DS-N card, faulty cabling from the DS-N card to the DSx panel or the EIA, or a faulty EIA.

Step 10 Complete the "Test the DS-N Cabling" procedure.

Test the DS-N Cabling

Step 1 Replace the suspected bad cabling (the cables from the test set to the DSx panel or the EIA ports) with a known-good cable.

If a known-good cable is not available, test the suspected bad cable with a test set. Remove the suspected bad cable from the DSx panel or the EIA and connect the cable to the Tx and Rx terminals of the test set. Run traffic to determine whether the cable is good or defective.

Step 2 Resend test traffic on the loopback circuit with a known-good cable installed. If the test set indicates a good circuit, the problem was probably the defective cable.

Step 3 Replace the defective cable.

Step 4 In card view for the DS-N card, depending upon the type, click the Maintenance > Loopback tabs, Maintenance > DS1 tabs, or Maintenance > DS3 tabs.

Step 5 Choose None from the Loopback Type column for the port being tested.

Step 6 Choose the appropriate state (IS, OOS, OOS_AINS) from the State column for the port being tested.

Step 7 Click Apply.

Step 8 Click Yes in the confirmation dialog box.

Step 9 Complete the "Perform a Hairpin Test on a Source Node Port (West to East)" procedure. If the test set indicates a faulty circuit, the problem might be a faulty card or a faulty EIA.

Step 10 Complete the "Test the DS-N Card" procedure.

Test the DS-N Card

Step 1 Complete the "Physically Replace a Card" procedure for the suspected bad card and replace it with a known-good one.

Step 2 Resend test traffic on the loopback circuit with a known-good card installed.

Step 3 If the test set indicates a good circuit, the problem was probably the defective card. Return the defective card to Cisco through the Return Materials Authorization (RMA) process. Contact Cisco TAC (1 800 553-2447).

Step 4 Complete the "Physically Replace a Card" procedure for the faulty card.

Step 5 In card view for the DS-N card, depending upon the type, click the Maintenance > Loopback tabs, Maintenance > DS1 tabs, or Maintenance > DS3 tabs.

Step 6 Choose None from the Loopback Type column for the port being tested.

Step 7 Choose the appropriate state (IS, OOS, OOS_AINS) from the State column for the port being tested.

Step 8 Click Apply.

Step 9 Click Yes in the confirmation dialog box.

Step 10 Complete the "Perform a Hairpin Test on a Source Node Port (West to East)" procedure. If the test set indicates a faulty circuit, the problem might be a faulty EIA.

Step 11 Complete the "Test the EIA" procedure.

Test the EIA

Note This procedure does not apply to Software R4.6 DWDM cards or ML-Series cards.

Step 1 Remove and reinstall the EIA to ensure a proper seating:

a. Remove the lower backplane cover. Loosen the five screws that secure it to the ONS 15454 and pull it away from the shelf assembly.

b. Loosen the nine perimeter screws that hold the EIA panel in place.

c. Lift the EIA panel by the bottom to remove it from the shelf assembly.

d. Follow the installation procedure for the appropriate EIA. See the "Replace an Electrical Interface Assembly" procedure on page 3-17.

Step 2 Resend test traffic on the loopback circuit with known-good cabling, a known-good card, and the reinstalled EIA. If the test set indicates a good circuit, the problem was probably an improperly seated EIA, and you can proceed to Step 16. If the problem persists and the EIA is not shown to be improperly seated, proceed to Step 3.

Step 3 In card view for the DS-N card, depending upon the type, click the Maintenance > Loopback tabs, Maintenance > DS1 tabs, or Maintenance > DS3 tabs.

Step 4 Choose None from the Loopback Type column for the port being tested.

Step 5 Choose the appropriate state (IS, OOS, OOS_AINS) from the State column for the port being tested.

Step 6 Click Apply.

Step 7 Click Yes in the confirmation dialog box. Proceed to Step 16.

Step 8 If the test set indicates a faulty circuit, the problem is probably a defective EIA. Return the defective EIA to Cisco through the RMA process. Contact Cisco TAC (1 800 553-2447).

Step 9 Replace the faulty EIA. See the "Replace an Electrical Interface Assembly" procedure on page 3-17.

Step 10 Resend test traffic on the loopback circuit with known-good cabling, a known-good card, and the replacement EIA. If the test set indicates a faulty circuit, repeat all of the facility loopback procedures.

Step 11 If the test set indicates a good circuit, the problem was probably the defective EIA. Clear the facility (line) loopback by clicking the Maintenance > Loopback tabs, Maintenance > DS1 tabs, or Maintenance > DS3 tabs.

Step 12 Choose None from the Loopback Type column for the port being tested.

Step 13 Choose the appropriate state (IS, OOS, OOS_AINS) from the State column for the port being tested.

Step 14 Click Apply.

Step 15 Click Yes in the confirmation dialog box.

Step 16 Complete the "Perform a Hairpin Test on a Source Node Port (West to East)" procedure.

1.3.2  Perform a Hairpin Test on a Source Node Port (West to East)

The hairpin test is performed on the cross-connect card in the network circuit. A hairpin circuit uses the same port for both source and destination. Completing a successful hairpin through the port isolates the possibility that the cross-connect card is the cause of the faulty circuit. Figure 1-11 shows an example of a hairpin loopback on a source node port.

Figure 1-11 Hairpin on a Source Node Port

Note The ONS 15454 does not support simplex operation on the XC10G cross-connect card. Two cross-connect cards of the same type must be installed for each node.

Create the Hairpin Circuit on the Source Node Port

Step 1 Connect an electrical test set to the port you are testing:

a. If you just completed the "Perform a Facility (Line) Loopback on a Source DS-N Port (West to East)" procedure, leave the electrical test set hooked up to the DS-N port in the source node.

b. If you are starting the current procedure without the electrical test set hooked up to the DS-N port, use appropriate cabling to attach the Tx and Rx terminals of the electrical test set to the DSx panel or the EIA connectors for the port you are testing. The Tx and Rx terminals connect to the same port.

c. Adjust the test set accordingly.

Step 2 Use CTC to set up the hairpin circuit on the test port:

a. In node view, click the Circuits tab and click Create.

b. In the Circuit Creation dialog box, choose the type and size, such as an STS-1.

c. Click Next.

d. In the next Circuit Creation dialog box, give the circuit an easily identifiable name such as "Hairpin1."

e. Uncheck the Bidirectional check box.

f. Click Next.

g. In the Circuit Creation source dialog box, select the same Node, card Slot, Port, and STS (or VT) where the test set is connected.

h. Click Next.

i. In the Circuit Creation destination dialog box, use the same Node, card Slot, Port, and STS (or VT) used for the source dialog box.

j. Click Finish.

Step 3 Confirm that the newly created circuit appears on the Circuits tab and that the Dir column describes it as a one-way circuit.

Step 4 Complete the "Test and Delete the Hairpin Circuit" procedure.

Test and Delete the Hairpin Circuit

Step 1 If the test set is not already sending traffic, send test traffic on the loopback circuit.

Step 2 Examine the test traffic received by the test set. Look for errors or any other signal information that the test set is capable of indicating.

Step 3 If the test set indicates a good circuit, no further testing is necessary with the hairpin circuit. Clear the hairpin circuit:

a. Click the Circuits tab.

b. Choose the hairpin circuit being tested.

c. Click Delete.

d. Click Yes in the Delete Circuits box.

e. Confirm that the hairpin circuit is deleted form the Circuits tab list.

Step 4 Complete the "Perform a Terminal (Inward) Loopback on a Destination DS-N Port (West to East)" procedure. If the test set indicates a faulty circuit, there might be a problem with the XC10G card.

Step 5 Complete the "Test the Standby XC10G Cross-Connect Card" procedure.

Test the Standby XC10G Cross-Connect Card

Note Two XC10G cross-connect cards (active and standby) must be in use on a node to use this procedure.

Step 1 Perform a reset on the standby XC10G cross-connect card to make it the active card:

a. Determine the standby cross-connect card. On both the physical node and the CTC node view window, the standby cross-connect's ACT/SBY LED is amber and the active card's ACT/SBY LED is green.

b. Position the cursor over the standby cross-connect card.

c. Right-click and choose RESET CARD.

d. Click Yes in the confirmation dialog box.

Step 2 Initiate an external switching command (side switch) on the cross-connect cards before you retest the loopback circuit:

Caution Cross-connect side switches are service-affecting. Any live traffic on any card in the node endures a hit of up to 50 ms.

a. Determine the standby XC10G cross-connect card. On both the physical node and the CTC node view window, the standby cross-connect's ACT/SBY LED is amber and the active card's ACT/SBY LED is green.

b. In the node view, select the Maintenance > Cross-Connect > Card tabs.

c. In the Cross-Connect Cards area, click Switch.

d. Click Yes in the Confirm Switch dialog box.

Note After the active XC10G cross-connect goes into standby mode, the original standby card becomes active and its ACT/SBY LED turns green. The former active card becomes standby and its ACT/SBY LED turns amber.

Step 3 Resend test traffic on the loopback circuit.

The test traffic now travels through the alternate cross-connect card.

Step 4 If the test set indicates a faulty circuit, assume the cross-connect card is not causing the problem. Clear the hairpin circuit:

a. Click the Circuits tab.

b. Choose the hairpin circuit being tested.

c. Click Delete.

d. Click Yes in the Delete Circuits dialog box.

e. Confirm that the hairpin circuit is deleted form the Circuits tab list.

Step 5 Complete the "Perform a Terminal (Inward) Loopback on a Destination DS-N Port (West to East)" procedure. If the test set indicates a good circuit, the problem might be a defective cross-connect card.

Step 6 To confirm a defective original cross-connect card, complete the "Retest the Original XC10G Cross-Connect Card" procedure.

Retest the Original XC10G Cross-Connect Card

Step 1 Initiate an external switching command (side switch) on the XC10G cross-connect cards:

a. Determine the standby cross-connect card. On both the physical node and the CTC node view window, the standby cross-connect's ACT/SBY LED is amber and the active card's ACT/SBY LED is green.

b. In node view, select the Maintenance > Cross-Connect > Card tabs.

c. From the Cross-Connect Cards menu, choose Switch.

d. Click Yes in the Confirm Switch dialog box.

Note After the active cross-connect goes into standby mode, the original standby card becomes active and its ACT/SBY LED turns green. The former active card becomes standby and its ACT/SBY LED turns amber.

Step 2 Resend test traffic on the loopback circuit.

Step 3 If the test set indicates a faulty circuit, the problem is probably the defective card. Return the defective card to Cisco through the RMA process. Contact Cisco TAC (1 800 553-2447) and proceed to Step 4. If the test does not indicate a faulty circuit, proceed to Step 5.

Step 4 Complete the "Replace an In-Service Cross-Connect Card" procedure on page 3-2 for the defective cross-connect card.

Step 5 If the test set indicates a good circuit, the cross-connect card might have had a temporary problem that was cleared by the side switch. Clear the hairpin circuit:

a. Click the Circuits tab.

b. Choose the hairpin circuit being tested.

c. Click Delete.

d. Click Yes in the Delete Circuits dialog box.

e. Confirm that the hairpin circuit is deleted form the Circuits tab list.

Step 6 Complete the "Perform a Terminal (Inward) Loopback on a Destination DS-N Port (West to East)" procedure.

1.3.3  Perform an XC Loopback on a Destination Node OC-N STS (West to East)

The XC loopback tests whether any problem exists on the circuit's OC-N span, isolating this span from others present on the card. The loopback occurs on the XC10G cross-connect card in a network circuit. Figure 1-12 shows an example of an XC loopback on a destination OC-N port.

Note The XC Loopback on an OC-N card does not affect traffic on other circuits.

Figure 1-12 XC Loopback on a Destination OC-N Port

Step 1 Connect an optical test set to the port you are testing:

Note Refer to the manufacturer's instructions for detailed information about connection and setup of the optical test set.

a. If you just completed the "Perform a Terminal (Inward) Loopback on a Source-Node OC-N, G-Series, MXP, or TXP Port" section, leave the optical test set hooked up to the destination node port.

b. If you are starting the current procedure without the optical test set hooked up to the destination port, use appropriate cabling to attach the Tx and Rx terminals of the optical test set to the port you are testing. The Tx and Rx terminals connect to the same port.

c. Adjust the test set accordingly.

Step 2 Use CTC to put the circuit being tested out of service:

a. In node view, click the Circuits tab.

b. Click the circuit and then click Edit.

c. In the Edit Circuit dialog box, click the State tab.

d. Choose OOS-MT from the Target Circuit State drop-down list.

e. Click Apply.

f. Click Yes in the confirmation dialog box.

Step 3 Use CTC to set up the XC loopback on the circuit being tested:

a. In node view, double-click the OC-N card to open the card view.

b. Click the Provisioning > SONET STS tabs.

c. Click the check box in the XC Loopback column for the port being tested.

d. Click Apply.

e. Click Yes in the confirmation dialog.

Step 4 Complete the "Test the XC Loopback Circuit" procedure.

Test the XC Loopback Circuit

Note This procedure is performed only on OC-N cards.

Step 1 If the test set is not already sending traffic, send test traffic on the loopback circuit.

Step 2 Examine the test traffic received by the test set. Look for errors or any other signal information that the test set is capable of indicating.

Step 3 If the test set indicates a good circuit, no further testing is necessary with the cross-connect. Clear the XC loopback:

a. In card view, click the Provisioning > SONET STS tabs.

b. Uncheck the check box in the XC Loopback column for the circuit being tested.

c. Click Apply.

d. Click Yes in the confirmation dialog.

Step 4 Complete the "Create a Facility (Line) Loopback on an Intermediate-Node OC-N, G-Series, MXP, or TXP Port" procedure. If the test set indicates a faulty circuit, there might be a problem with the cross-connect card.

Step 5 Complete the "Test the Standby XC10G Cross-Connect Card" procedure.

Test the Standby XC10G Cross-Connect Card

Step 1 Perform a reset on the standby cross-connect card:

a. Determine the standby cross-connect card. On both the physical node and the CTC node view window, the standby cross-connect's ACT/SBY LED is amber and the active card's ACT/SBY LED is green.

b. Position the cursor over the standby cross-connect card.

c. Right-click and choose RESET CARD.

d. Click Yes in the confirmation dialog box.

Step 2 Initiate an external switching command (side switch) on the cross-connect cards before you retest the loopback circuit:

Caution Cross-connect side switches are service-affecting. Any live traffic on any card in the node endures a hit of up to 50 ms.

a. Determine the standby cross-connect card. On both the physical node and the CTC node view window, the standby cross-connect's ACT/SBY LED is amber and the active card's ACT/SBY LED is green.

b. In the node view, select the Maintenance > Cross-Connect > Card tabs.

c. In the Cross-Connect Cards area, click Switch.

d. Click Yes in the Confirm Switch dialog box.

Note After the active cross-connect goes into standby mode, the original standby card becomes active and its ACT/SBY LED turns green. The former active card becomes standby and its ACT/SBY LED turns amber.

Step 3 Resend test traffic on the loopback circuit.

The test traffic now travels through the alternate cross-connect card.

Step 4 If the test set indicates a faulty circuit, assume the cross-connect card is not causing the problem. Clear the XC loopback circuit:

a. Click the Circuits tab.

b. Choose the XC loopback circuit being tested.

c. Click Delete.

d. Click Yes in the Delete Circuits dialog box.

e. Confirm that the XC loopback circuit is deleted form the Circuits tab list. If the test set indicates a good circuit, the problem might be a defective cross-connect card.

Step 5 To confirm a defective original cross-connect card, complete the "Retest the Original XC10G Cross-Connect Card" procedure.

Retest the Original XC10G Cross-Connect Card

Note This procedure is performed only on OC-N and XC10G cards.

Step 1 Initiate an external switching command (side switch) on the cross-connect cards.

a. Determine the standby cross-connect card. On both the physical node and the CTC node view window, the standby cross-connect's ACT/SBY LED is amber and the active card's ACT/SBY LED is green.

b. In node view, select the Maintenance > Cross-Connect > Card tabs.

c. In the Cross-Connect Cards area, click Switch.

d. Click Yes in the Confirm Switch dialog box.

Note After the active cross-connect goes into standby mode, the original standby card becomes active and its ACT/SBY LED turns green. The former active card becomes standby and its ACT/SBY LED turns amber.

Step 2 Resend test traffic on the loopback circuit.

Step 3 If the test set indicates a faulty circuit, the problem is probably the defective card. Return the defective card to Cisco through the RMA process. Contact Cisco TAC (1 800 553-2447) and proceed to Step 4. If the circuit is not shown to be faulty and the card is not shown to be defective, you are finished with testing.

Step 4 Complete the "Replace an In-Service Cross-Connect Card" procedure on page 3-2 for the defective cross-connect card and perform Step 5.

Step 5 If the test set indicates a good circuit, the cross-connect card might have had a temporary problem that was cleared by the side switch. Clear the XC loopback circuit:

a. Click the Circuits tab.

b. Choose the XC loopback circuit being tested.

c. Click Delete.

d. Click Yes in the Delete Circuits dialog box.

1.3.4  Perform a Terminal (Inward) Loopback on a Destination DS-N Port (West to East)

The terminal (inward) loopback test is performed on the node destination port in the circuit, such as a destination node DS-N port. You create a bidirectional circuit that starts on the source node DS-N port and loops back on the destination node DS-N port. Then you proceed with the terminal loopback test. Completing a successful terminal loopback to a destination node DS-N port verifies that the circuit is good to the destination DS-N. Figure 1-13 shows an example of a terminal loopback on a destination DS-N port.

Figure 1-13 Terminal (Inward) Loopback on a Destination DS-N Port

Caution Performing a loopback on an in-service circuit is service-affecting. To protect traffic, apply a lockout or force switch to the target loopback port. For more information about these operations, refer to the Cisco ONS 15454 Procedure Guide.

Note DS-3 terminal loopbacks do not transmit an AIS condition in the direction away from the loopback. Instead of a DS-3 AIS, a continuance of the signal transmitted to the loopback is provided.

Create the Terminal (Inward) Loopback on a Destination DS-N Port

Step 1 Connect an electrical test set to the port you are testing:

a. If you just completed the "Perform a Hairpin Test on a Source Node Port (West to East)" procedure, leave the electrical test set hooked up to the DS-N port in the source node.

b. If you are starting the current procedure without the electrical test set hooked up to the DS-N port, use appropriate cabling to attach the Tx and Rx terminals of the electrical test set to the DSx panel or the EIA connectors for the port you are testing. Both Tx and Rx connect to the same port.

c. Adjust the test set accordingly.

Step 2 In CTC node view, click the Circuits tab and click Create.

Step 3 In the Circuit Creation dialog box, choose the type and size, such as an STS-1.

Step 4 Click Next.

Step 5 In the next Circuit Creation dialog box, give the circuit an easily identifiable name such as "DS-NtoDS-N."

Step 6 Leave the Bidirectional check box checked.

Step 7 Click Next.

Step 8 In the Circuit Creation source dialog box, select the Node, card Slot, Port, and STS (or VT) where the test set is connected.

Step 9 Click Next.

Step 10 In the Circuit Creation destination dialog box, use the same Node, card Slot, Port, and STS (or VT) used for the source dialog box.

Step 11 Click Finish.

Step 12 Confirm that the newly created circuit appears in the Dir column as a 2-way circuit.

Note It is normal for the "LPBKTERMINAL (DS1, DS3, EC-1-12, OCN)" condition on page 2-144 to appear during a loopback setup. The condition clears when you remove the loopback.

Note DS-3 terminal loopbacks do not transmit a DS-3 AIS (see the "AIS" condition on page 2-21) in the direction away from the loopback. Instead of a DS-3 AIS, a continuance of the signal transmitted to the loopback is provided.

Step 13 Create the terminal (inward) loopback on the destination port being tested:

a. Go to the node view of the destination node:

•Choose View > Go To Other Node from the menu bar.

•Choose the node from the drop-down list in the Select Node dialog box and click OK.

b. In node view, double-click the card that requires the loopback, such as the DS-N card in the destination node.

c. Depending upon the card type, click the Maintenance > Loopback tabs, Maintenance > DS1 tabs, or Maintenance > DS3 tabs.

d. Select OOS_MT from the State column. If this is a multiport card, select the row appropriate for the desired port.

e. Select Terminal (Inward) from the Loopback Type column. If this is a multiport card, select the row appropriate for the desired port.

f. Click Apply.

g. Click Yes in the confirmation dialog box.

Step 14 Complete the "Test and Clear the Terminal (Inward) Loopback Circuit on the Destination DS-N Port" procedure.

Test and Clear the Terminal (Inward) Loopback Circuit on the Destination DS-N Port

Step 1 If the test set is not already sending traffic, send test traffic on the loopback circuit.

Step 2 Examine the test traffic being received by the test set. Look for errors or any other signal information that the test set is capable of indicating.

Step 3 If the test set indicates a good circuit, no further testing is necessary on the loopback circuit. Double-click the DS-N card in the destination node with the terminal loopback.

Step 4 Depending upon the card type, click the Maintenance > Loopback tabs, Maintenance > DS1 tabs, or Maintenance > DS3 tabs.

Step 5 Select None from the Loopback Type column for the port being tested.

Step 6 Select the appropriate state (IS, OOS, OOS_AINS) in the State column for the port being tested.

Step 7 Click Apply.

Step 8 Click Yes in the confirmation dialog box.

Step 9 Clear the terminal loopback:

a. Click the Circuits tab.

b. Choose the loopback circuit being tested.

c. Click Delete.

d. Click Yes in the Delete Circuits dialog box.

Step 10 Complete the "Perform a Hairpin Test on a Destination Node Port (East to West)" procedure. If the test set indicates a faulty circuit, the problem might be a faulty card.

Step 11 Complete the "Test the Destination DS-N Card" procedure.

Test the Destination DS-N Card

Note This procedure does not apply to Software R4.6 DWDM cards or ML-Series cards.

Step 1 Complete the "Physically Replace a Card" procedure for the suspected bad card and replace it with a known-good one.

Step 2 Resend test traffic on the loopback circuit with a known-good card.

Step 3 If the test set indicates a good circuit, the problem was probably the defective card. Return the defective card to Cisco through the RMA process. Contact Cisco TAC (1 800 553-2447).

Step 4 Complete the "Physically Replace a Card" procedure for the defective DS-N card.

Step 5 Clear the terminal (inward) loopback state on the port:

a. Double-click the DS-N card in the destination node with the terminal loopback.

b. Depending upon the card type, click the Maintenance > Loopback tabs, Maintenance > DS1 tabs, or Maintenance > DS3 tabs.

c. Select None from the Loopback Type column for the port being tested.

d. Select the appropriate state (IS, OOS, OOS_AINS) in the State column for the port being tested.

e. Click Apply.

f. Click Yes in the confirmation dialog box.

Step 6 Delete the terminal (inward) loopback circuit:

a. Click the Circuits tab.

b. Choose the loopback circuit being tested.

c. Click Delete.

d. Click Yes in the Delete Circuits dialog box.

Step 7 Complete the "Perform a Hairpin Test on a Destination Node Port (East to West)" procedure.

1.3.5  Perform a Facility (Line) Loopback on a Destination DS-N Port (East to West)

The facility (line) loopback test is performed on the node destination port in the network circuit, in this example, the DS-N port in the destination node. Completing a successful facility (line) loopback on this port isolates the cabling, the DS-N card, and the EIA as possible failure points. Figure 1-14 shows an example of a facility loopback on a destination DS-N port.

Figure 1-14 A Facility (Line) Loopback on a Circuit Destination DS-N Port

Caution Performing a loopback on an in-service circuit is service-affecting. To protect traffic, apply a lockout or Force switch to the target loopback port. For more information about these operations, refer to the Cisco ONS 15454 Procedure Guide.

Note DS-3 facility (line) loopbacks do not transmit an alarm indication signal (AIS) condition in the direction away from the loopback. Instead of a DS-3 AIS, a continuance of the signal transmitted to the loopback is provided.

Create the Facility (Line) Loopback on the Destination DS-N Port

Step 1 Connect an electrical test set to the port you are testing.

Use appropriate cabling to attach the Tx and Rx terminals of the electrical test set to the EIA connectors or DSx panel for the port you are testing. The Tx and Rx terminals connect to the same port. Adjust the test set accordingly.

Step 2 In CTC node view, double-click the DS-N card to open the card view.

Step 3 Depending upon the card type, click the Maintenance > Loopback tabs, Maintenance > DS1 tabs, or Maintenance > DS3 tabs.

Step 4 Choose OOS_MT from the State column for the port being tested. If this is a multiport card, select the appropriate row for the port being tested.

Step 5 Choose Facility (Line) from the Loopback Type column for the port being tested. If this is a multiport card, select the appropriate row for the port being tested.

Step 6 Click Apply.

Step 7 Click Yes in the confirmation dialog box.

Note It is normal for a "LPBKFACILITY (DS1, DS3)" condition on page 2-141 to appear during loopback setup. The condition clears when you remove the loopback.

Step 8 Complete the "Test and Clear the Facility (Line) Loopback Circuit" procedure.

Test and Clear the Facility (Line) Loopback Circuit

Step 1 If the test set is not already sending traffic, send test traffic on the loopback circuit.

Step 2 Examine the traffic received by the test set. Look for errors or any other signal information that the test set is capable of indicating.

Step 3 If the test set indicates a good circuit, no further testing is necessary with the facility loopback. Double-click the card to open the card view.

Step 4 Depending upon the card type, click the Maintenance > Loopback tabs, Maintenance > DS1 tabs, or Maintenance > DS3 tabs.

Step 5 Choose None from the Loopback Type column for the port being tested.

Step 6 Choose the appropriate state (IS, OOS, OOS_AINS) from the State column for the port being tested.

Step 7 Click Apply.

Step 8 Click Yes in the confirmation dialog box.

Step 9 Complete the "Perform a Hairpin Test on a Source Node Port (West to East)" procedure. If the test set indicates a faulty circuit, the problem might be a faulty DS-N card, faulty cabling from the DS-N card to the DSx panel or the EIA, or a faulty EIA.

Step 10 Complete the "Test the DS-N Cabling" procedure.

Test the DS-N Cabling

Step 1 Replace the suspected bad cabling (the cables from the test set to the DSx panel or the EIA ports) with a known-good cable.

If a known-good cable is not available, test the suspected bad cable with a test set. Remove the suspected bad cable from the DSx panel or the EIA and connect the cable to the Tx and Rx terminals of the test set. Run traffic to determine whether the cable is good or defective.

Step 2 Resend test traffic on the loopback circuit with a known-good cable installed. If the test set indicates a good circuit, the problem was probably the defective cable.

Step 3 Replace the defective cable.

Step 4 In card view for the DS-N card, depending upon the type, click the Maintenance > Loopback tabs, Maintenance > DS1 tabs, or Maintenance > DS3 tabs.

Step 5 Choose None from the Loopback Type column for the port being tested.

Step 6 Choose the appropriate state (IS, OOS, OOS_AINS) from the State column for the port being tested.

Step 7 Click Apply.

Step 8 Click Yes in the confirmation dialog box.

Step 9 Complete the "Perform a Hairpin Test on a Source Node Port (West to East)" procedure. If the test set indicates a faulty circuit, the problem might be a faulty card or a faulty EIA.

Step 10 Complete the "Test the DS-N Card" procedure.

Test the DS-N Card

Step 1 Complete the "Physically Replace a Card" procedure for the suspected bad card and replace it with a known-good one.

Step 2 Resend test traffic on the loopback circuit with a known-good card installed.

Step 3 If the test set indicates a good circuit, the problem was probably the defective card. Return the defective card to Cisco through the Return Materials Authorization (RMA) process. Contact Cisco TAC (1 800 553-2447).

Step 4 Complete the "Physically Replace a Card" procedure for the faulty card.

Step 5 In card view for the DS-N card, depending upon the type, click the Maintenance > Loopback tabs, Maintenance > DS1 tabs, or Maintenance > DS3 tabs.

Step 6 Choose None from the Loopback Type column for the port being tested.

Step 7 Choose the appropriate state (IS, OOS, OOS_AINS) from the State column for the port being tested.

Step 8 Click Apply.

Step 9 Click Yes in the confirmation dialog box.

Step 10 Complete the "Perform a Hairpin Test on a Source Node Port (West to East)" procedure. If the test set indicates a faulty circuit, the problem might be a faulty EIA.

Step 11 Complete the "Test the EIA" procedure.

Test the EIA

Step 1 Remove and reinstall the EIA to ensure a proper seating:

a. Remove the lower backplane cover. Loosen the five screws that secure it to the ONS 15454 and pull it away from the shelf assembly.

b. Loosen the nine perimeter screws that hold the EIA panel in place.

c. Lift the EIA panel by the bottom to remove it from the shelf assembly.

d. Follow the installation procedure for the appropriate EIA. See the "Replace an Electrical Interface Assembly" procedure on page 3-17.

Step 2 Resend test traffic on the loopback circuit with known-good cabling, a known-good card, and the reinstalled EIA. If the test set indicates a good circuit, the problem was probably an improperly seated EIA, and you can proceed to Step 16. If the problem persists and the EIA is not shown to be improperly seated, proceed to Step 3.

Step 3 In card view for the DS-N card, depending upon the type, click the Maintenance > Loopback tabs, Maintenance > DS1 tabs, or Maintenance > DS3 tabs.

Step 4 Choose None from the Loopback Type column for the port being tested.

Step 5 Choose the appropriate state (IS, OOS, OOS_AINS) from the State column for the port being tested.

Step 6 Click Apply.

Step 7 Click Yes in the confirmation dialog box. Proceed to Step 16.

Step 8 If the test set indicates a faulty circuit, the problem is probably a defective EIA. Return the defective EIA to Cisco through the RMA process. Contact Cisco TAC (1 800 553-2447).

Step 9 Replace the faulty EIA. See the "Replace an Electrical Interface Assembly" procedure on page 3-17.

Step 10 Resend test traffic on the loopback circuit with known-good cabling, a known-good card, and the replacement EIA. If the test set indicates a faulty circuit, repeat all of the facility loopback procedures.

Step 11 If the test set indicates a good circuit, the problem was probably the defective EIA. Clear the facility (line) loopback by clicking the Maintenance > Loopback tabs, Maintenance > DS1 tabs, or Maintenance > DS3 tabs.

Step 12 Choose None from the Loopback Type column for the port being tested.

Step 13 Choose the appropriate state (IS, OOS, OOS_AINS) from the State column for the port being tested.

Step 14 Click Apply.

Step 15 Click Yes in the confirmation dialog box.

Step 16 Complete the "Perform a Hairpin Test on a Source Node Port (West to East)" procedure.

1.3.6  Perform a Hairpin Test on a Destination Node Port (East to West)

The hairpin test is performed on the cross-connect card in the network circuit. A hairpin circuit uses the same port for both source and destination. Completing a successful hairpin through the card isolates the possibility that the cross-connect card is the cause of the faulty circuit. Figure 1-15 shows an example of a hairpin loopback on a destination node port.

Figure 1-15 Hairpin on a Destination Node Port

Note The ONS 15454 does not support simplex operation on the XC10G cross-connect card. Two cross-connect cards of the same type must be installed for each node.

Create the Hairpin Circuit on the Destination Node Port

Step 1 Connect an electrical test set to the port you are testing:

a. If you just completed the "Perform a Facility (Line) Loopback on a Source DS-N Port (West to East)" procedure, leave the electrical test set hooked up to the DS-N port in the destination node.

b. If you are starting the current procedure without the electrical test set hooked up to the DS-N port, use appropriate cabling to attach the Tx and Rx terminals of the electrical test set to the DSx panel or the EIA connectors for the port you are testing. The Tx and Rx terminals connect to the same port.

c. Adjust the test set accordingly.

Step 2 Use CTC to set up the hairpin circuit on the test port:

a. In node view, click the Circuits tab and click Create.

b. In the Circuit Creation dialog box, choose the type and size, such as an STS-1.

c. Click Next.

d. In the next Circuit Creation dialog box, give the circuit an easily identifiable name such as "Hairpin1."

e. Uncheck the Bidirectional check box.

f. Click Next.

g. In the Circuit Creation source dialog box, select the same Node, card Slot, Port, and STS (or VT) where the test set is connected.

h. Click Next.

i. In the Circuit Creation destination dialog box, use the same Node, card Slot, Port, and STS (or VT) used for the source dialog box.

j. Click Finish.

Step 3 Confirm that the newly created circuit appears on the Circuits tab and that the Dir column describes it as a one-way circuit.

Step 4 Complete the "Test and Delete the Hairpin Circuit" procedure.

Test and Delete the Hairpin Circuit

Step 1 If the test set is not already sending traffic, send test traffic on the loopback circuit.

Step 2 Examine the test traffic received by the test set. Look for errors or any other signal information that the test set is capable of indicating.

Step 3 If the test set indicates a good circuit, no further testing is necessary with the hairpin circuit. Clear the hairpin circuit:

a. Click the Circuits tab.

b. Choose the hairpin circuit being tested.

c. Click Delete.

d. Click Yes in the Delete Circuits dialog box.

e. Confirm that the hairpin circuit is deleted form the Circuits tab list.

Step 4 Complete the "Perform a Terminal (Inward) Loopback on a Destination DS-N Port (West to East)" procedure. If the test set indicates a faulty circuit, there might be a problem with the XC10G card.

Step 5 Complete the "Test the Standby XC10G Cross-Connect Card" procedure.

Test the Standby XC10G Cross-Connect Card

Note Two XC10G cross-connect cards (active and standby) must be in use on a node to use this procedure.

Step 1 Perform a reset on the standby XC10G cross-connect card to make it the active card:

a. Determine the standby cross-connect card. On both the physical node and the CTC node view window, the standby cross-connect's ACT/SBY LED is amber and the active card's ACT/SBY LED is green.

b. Position the cursor over the standby cross-connect card.

c. Right-click and choose RESET CARD.

d. Click Yes in the confirmation dialog box.

Step 2 Initiate an external switching command (side switch) on the cross-connect cards before you retest the loopback circuit:

Caution Cross-connect side switches are service-affecting. Any live traffic on any card in the node endures a hit of up to 50 ms.

a. Determine the standby XC10G cross-connect card. On both the physical node and the CTC node view window, the standby cross-connect's ACT/SBY LED is amber and the active card's ACT/SBY LED is green.

b. In the node view, select the Maintenance > Cross-Connect > Card tabs.

c. In the Cross-Connect Cards area, click Switch.

d. Click Yes in the Confirm Switch dialog box.

Note After the active XC10G cross-connect goes into standby mode, the original standby card becomes active and its ACT/SBY LED turns green. The former active card becomes standby and its ACT/SBY LED turns amber.

Step 3 Resend test traffic on the loopback circuit.

The test traffic now travels through the alternate cross-connect card.

Step 4 If the test set indicates a faulty circuit, assume the cross-connect card is not causing the problem. Clear the hairpin circuit:

a. Click the Circuits tab.

b. Choose the hairpin circuit being tested.

c. Click Delete.

d. Click Yes in the Delete Circuits dialog box.

e. Confirm that the hairpin circuit is deleted form the Circuits tab list.

Step 5 Complete the "Perform a Terminal (Inward) Loopback on a Destination DS-N Port (West to East)" procedure. If the test set indicates a good circuit, the problem might be a defective cross-connect card.

Step 6 To confirm a defective original cross-connect card, complete the "Retest the Original XC10G Cross-Connect Card" procedure.

Retest the Original XC10G Cross-Connect Card

Step 1 Initiate an external switching command (side switch) on the XC10G cross-connect cards:

a. Determine the standby cross-connect card. On both the physical node and the CTC node view window, the standby cross-connect's ACT/SBY LED is amber and the active card's ACT/SBY LED is green.

b. In node view, select the Maintenance > Cross-Connect > Card tabs.

c. From the Cross-Connect Cards menu, choose Switch.

d. Click Yes in the Confirm Switch dialog box.

Note After the active cross-connect goes into standby mode, the original standby card becomes active and its ACT/SBY LED turns green. The former active card becomes standby and its ACT/SBY LED turns amber.

Step 2 Resend test traffic on the loopback circuit.

Step 3 If the test set indicates a faulty circuit, the problem is probably the defective card. Return the defective card to Cisco through the RMA process. Contact Cisco TAC (1 800 553-2447) and proceed to Step 4. If the test does not indicate a faulty circuit, proceed to Step 5.

Step 4 Complete the "Replace an In-Service Cross-Connect Card" procedure on page 3-2 for the defective cross-connect card.

Step 5 If the test set indicates a good circuit, the cross-connect card might have had a temporary problem that was cleared by the side switch. Clear the hairpin circuit:

a. Click the Circuits tab.

b. Choose the hairpin circuit being tested.

c. Click Delete.

d. Click Yes in the Delete Circuits dialog box.

e. Confirm that the hairpin circuit is deleted form the Circuits tab list.

Step 6 Complete the "Perform a Terminal (Inward) Loopback on a Destination DS-N Port (West to East)" procedure.

1.3.7  Perform an XC Loopback on a Source Node OC-N STS (East to West)

The XC loopback tests whether any problem exists on the circuit's OC-N span, isolating this span from others present on the card. It also eliminates the cross-connect card as the source of trouble for a faulty circuit. The loopback occurs on the XC10G cross-connect card in a network circuit. Figure 1-16 shows an example of an XC loopback on a source OC-N port.

Note The XC Loopback on an OC-N card does not affect traffic on other circuits.

Figure 1-16 XC Loopback on a Source OC-N Port

Step 1 Connect an optical test set to the port you are testing:

Note Refer to the manufacturer's instructions for detailed information about connection and setup of the optical test set.

a. If you just completed the "Perform a Terminal (Inward) Loopback on a Source-Node OC-N, G-Series, MXP, or TXP Port" section, leave the optical test set hooked up to the source node port.

b. If you are starting the current procedure without the optical test set hooked up to the source port, use appropriate cabling to attach the Tx and Rx terminals of the optical test set to the port you are testing. The Tx and Rx terminals connect to the same port.

c. Adjust the test set accordingly.

Step 2 Use CTC to put the circuit being tested out of service:

a. In node view, click the Circuits tab.

b. Click the circuit and then click Edit.

c. In the Edit Circuit dialog box, click the State tab.

d. Choose OOS-MT from the Target Circuit State drop-down list.

e. Click Apply.

f. Click Yes in the confirmation dialog box.

Step 3 Use CTC to set up the XC loopback on the circuit being tested:

a. In node view, double-click the OC-N card to open the card view.

b. Click the Provisioning > SONET STS tabs.

c. Click the check box in the XC Loopback column for the port being tested.

d. Click Apply.

e. Click Yes in the confirmation dialog.

Step 4 Complete the "Test the XC Loopback Circuit" procedure.

Test the XC Loopback Circuit

Note This procedure is performed only on OC-N cards.

Step 1 If the test set is not already sending traffic, send test traffic on the loopback circuit.

Step 2 Examine the test traffic received by the test set. Look for errors or any other signal information that the test set is capable of indicating.

Step 3 If the test set indicates a good circuit, no further testing is necessary with the cross-connect. Clear the XC loopback:

a. In card view, click the Provisioning > SONET STS tabs.

b. Uncheck the check box in the XC Loopback column for the circuit being tested.

c. Click Apply.

d. Click Yes in the confirmation dialog.

Step 4 Complete the "Create a Facility (Line) Loopback on an Intermediate-Node OC-N, G-Series, MXP, or TXP Port" procedure. If the test set indicates a faulty circuit, there might be a problem with the cross-connect card.

Step 5 Complete the "Test the Standby XC10G Cross-Connect Card" procedure.

Test the Standby XC10G Cross-Connect Card

Step 1 Perform a reset on the standby cross-connect card:

a. Determine the standby cross-connect card. On both the physical node and the CTC node view window, the standby cross-connect's ACT/SBY LED is amber and the active card's ACT/SBY LED is green.

b. Position the cursor over the standby cross-connect card.

c. Right-click and choose RESET CARD.

d. Click Yes in the confirmation dialog box.

Step 2 Initiate an external switching command (side switch) on the cross-connect cards before you retest the loopback circuit:

Caution Cross-connect side switches are service-affecting. Any live traffic on any card in the node endures a hit of up to 50 ms.

a. Determine the standby cross-connect card. On both the physical node and the CTC node view window, the standby cross-connect's ACT/SBY LED is amber and the active card's ACT/SBY LED is green.

b. In the node view, select the Maintenance > Cross-Connect > Card tabs.

c. In the Cross-Connect Cards area, click Switch.

d. Click Yes in the Confirm Switch dialog box.

Note After the active cross-connect goes into standby mode, the original standby card becomes active and its ACT/SBY LED turns green. The former active card becomes standby and its ACT/SBY LED turns amber.

Step 3 Resend test traffic on the loopback circuit.

The test traffic now travels through the alternate cross-connect card.

Step 4 If the test set indicates a faulty circuit, assume the cross-connect card is not causing the problem. Clear the XC loopback circuit:

a. Click the Circuits tab.

b. Choose the XC loopback circuit being tested.

c. Click Delete.

d. Click Yes in the Delete Circuits dialog box.

e. Confirm that the XC loopback circuit is deleted form the Circuits tab list. If the test set indicates a good circuit, the problem might be a defective cross-connect card.

Step 5 To confirm a defective original cross-connect card, complete the "Retest the Original XC10G Cross-Connect Card" procedure.

Retest the Original XC10G Cross-Connect Card

Note This procedure is performed only on OC-N and XC10G cards.

Step 1 Initiate an external switching command (side switch) on the cross-connect cards.

a. Determine the standby cross-connect card. On both the physical node and the CTC node view window, the standby cross-connect's ACT/SBY LED is amber and the active card's ACT/SBY LED is green.

b. In node view, select the Maintenance > Cross-Connect > Card tabs.

c. In the Cross-Connect Cards area, click Switch.

d. Click Yes in the Confirm Switch dialog box.

Note After the active cross-connect goes into standby mode, the original standby card becomes active and its ACT/SBY LED turns green. The former active card becomes standby and its ACT/SBY LED turns amber.

Step 2 Resend test traffic on the loopback circuit.

Step 3 If the test set indicates a faulty circuit, the problem is probably the defective card. Return the defective card to Cisco through the RMA process. Contact Cisco TAC (1 800 553-2447) and proceed to Step 4. If the circuit is not shown to be faulty and the card is not shown to be defective, you are finished with testing.

Step 4 Complete the "Replace an In-Service Cross-Connect Card" procedure on page 3-2 for the defective cross-connect card and perform Step 5.

Step 5 If the test set indicates a good circuit, the cross-connect card might have had a temporary problem that was cleared by the side switch. Clear the XC loopback circuit:

a. Click the Circuits tab.

b. Choose the XC loopback circuit being tested.

c. Click Delete.

d. Click Yes in the Delete Circuits dialog box.

1.3.8  Perform a Terminal (Inward) Loopback on a Source DS-N Port (East to West)

The terminal (inward) loopback test is performed on the node source port in the circuit, such as a source node DS-N port. You first create a bidirectional circuit that starts on the destination node DS-N port and loops back on the source node DS-N port. Then you proceed with the terminal loopback test. Completing a successful terminal loopback to a source node DS-N port verifies that the circuit is good to the source DS-N. Figure 1-17 shows an example of a terminal loopback on a source DS-N port.

Figure 1-17 Terminal (Inward) Loopback on a Source DS-N Port

Caution Performing a loopback on an in-service circuit is service-affecting. To protect traffic, apply a lockout or Force switch to the target loopback port. For more information about these operations, refer to the Cisco ONS 15454 Procedure Guide.

Note DS-3 terminal loopbacks do not transmit an AIS condition in the direction away from the loopback. Instead of a DS-3 AIS, a continuance of the signal transmitted to the loopback is provided.

Create the Terminal (Inward) Loopback on a Source DS-N Port

Step 1 Connect an electrical test set to the port you are testing:

a. If you just completed the "Perform a Hairpin Test on a Source Node Port (West to East)" procedure, leave the electrical test set hooked up to the DS-N port in the source node.

b. If you are starting the current procedure without the electrical test set hooked up to the DS-N port, use appropriate cabling to attach the Tx and Rx terminals of the electrical test set to the DSx panel or the EIA connectors for the port you are testing. Both Tx and Rx connect to the same port.

c. Adjust the test set accordingly.

Step 2 In CTC node view, click the Circuits tab and click Create.

Step 3 In the Circuit Creation dialog box, choose the type and size, such as an STS-1.

Step 4 Click Next.

Step 5 In the next Circuit Creation dialog box, give the circuit an easily identifiable name such as "DS-NtoDS-N."

Step 6 Leave the Bidirectional check box checked.

Step 7 Click Next.

Step 8 In the Circuit Creation source dialog box, select the Node, card Slot, Port, and STS (or VT) where the test set is connected.

Step 9 Click Next.

Step 10 In the Circuit Creation destination dialog box, use the same Node, card Slot, Port, and STS (or VT) used for the source dialog box.

Step 11 Click Finish.

Step 12 Confirm that the newly created circuit appears in the Dir column as a 2-way circuit.

Note It is normal for the "LPBKTERMINAL (DS1, DS3, EC-1-12, OCN)" condition on page 2-144 to appear during a loopback setup. The condition clears when you remove the loopback.

Note DS-3 terminal loopbacks do not transmit a DS-3 AIS (see the "AIS" condition on page 2-21) in the direction away from the loopback. Instead of a DS-3 AIS, a continuance of the signal transmitted to the loopback is provided.

Step 13 Create the terminal (inward) loopback on the destination port being tested:

a. Go to the node view of the destination node:

•Choose View > Go To Other Node from the menu bar.

•Choose the node from the drop-down list in the Select Node dialog box and click OK.

b. In node view, double-click the card that requires the loopback, such as the DS-N card in the destination node.

c. Depending upon the card type, click the Maintenance > Loopback tabs, Maintenance > DS1 tabs, or Maintenance > DS3 tabs.

d. Select OOS_MT from the State column. If this is a multiport card, select the row appropriate for the desired port.

e. Select Terminal (Inward) from the Loopback Type column. If this is a multiport card, select the row appropriate for the desired port.

f. Click Apply.

g. Click Yes in the confirmation dialog box.

Step 14 Complete the "Test and Clear the Terminal (Inward) Loopback Circuit on the Destination DS-N Port" procedure.

Test and Clear the Terminal (Inward) Loopback Circuit on the Source DS-N Port

Step 1 If the test set is not already sending traffic, send test traffic on the loopback circuit.

Step 2 Examine the test traffic being received by the test set. Look for errors or any other signal information that the test set is capable of indicating.

Step 3 If the test set indicates a good circuit, no further testing is necessary on the loopback circuit. Double-click the DS-N card in the destination node with the terminal loopback.

Step 4 Depending upon the card type, click the Maintenance > Loopback tabs, Maintenance > DS1 tabs, or Maintenance > DS3 tabs.

Step 5 Select None from the Loopback Type column for the port being tested.

Step 6 Select the appropriate state (IS, OOS, OOS_AINS) in the State column for the port being tested.

Step 7 Click Apply.

Step 8 Click Yes in the confirmation dialog box.

Step 9 Clear the terminal loopback:

a. Click the Circuits tab.

b. Choose the loopback circuit being tested.

c. Click Delete.

d. Click Yes in the Delete Circuits dialog box.

Step 10 Complete the "Perform a Hairpin Test on a Destination Node Port (East to West)" procedure. If the test set indicates a faulty circuit, the problem might be a faulty card.

Step 11 Complete the "Test the Destination DS-N Card" procedure.

Test the Destination DS-N Card

Step 1 Complete the "Physically Replace a Card" procedure for the suspected bad card and replace it with a known-good one.

Step 2 Resend test traffic on the loopback circuit with a known-good card.

Step 3 If the test set indicates a good circuit, the problem was probably the defective card. Return the defective card to Cisco through the RMA process. Contact Cisco TAC (1 800 553-2447).

Step 4 Complete the "Physically Replace a Card" procedure for the defective DS-N card.

Step 5 Clear the terminal (inward) loopback state on the port:

a. Double-click the DS-N card in the destination node with the terminal loopback.

b. Depending upon the card type, click the Maintenance > Loopback tabs, Maintenance > DS1 tabs, or Maintenance > DS3 tabs.

c. Select None from the Loopback Type column for the port being tested.

d. Select the appropriate state (IS, OOS, OOS_AINS) in the State column for the port being tested.

e. Click Apply.

f. Click Yes in the confirmation dialog box.

Step 6 Delete the terminal (inward) loopback circuit:

a. Click the Circuits tab.

b. Choose the loopback circuit being tested.

c. Click Delete.

d. Click Yes in the Delete Circuits dialog box.

Step 7 Complete the "Perform a Hairpin Test on a Destination Node Port (East to West)" procedure.

1.4  Using the DS3XM-6 Card FEAC (Loopback) Functions

The DS3XM-6 card supports far-end access control (FEAC) functions that are not available on basic DS-3 cards. Click the Maintenance tab at the DS3XM-6 card view to reveal the two additional function columns. Figure 1-18 shows the DS3 subtab and the additional Send Code and Inhibit FE Lbk function columns.

Figure 1-18 Accessing FEAC Functions on the DS3XM-6 Card

The "far end" in FEAC refers to the equipment connected to the DS3XM-6 card and not to the far end of a circuit. In Figure 1-19, if a DS3XM-6 (near-end) port is configured to send a Line Loop Code, the code will be sent to the connected test set, not the DS3XM-6 (far-end) port.

Figure 1-19 Diagram of FEAC

1.4.1  FEAC Send Code

The Send Code column on the DS3XM-6 card Maintenance tab only applies to out-of-service (OOS_MT, OOS_AINS) ports configured for CBIT framing. The column lets a user select No Code (the default) or Line Loop Code. Selecting Line Loop Code inserts a line loop activate FEAC in the CBIT overhead transmitting to the connected facility (line). This code initiates a loopback from the facility to the ONS 15454. Selecting No Code sends a line-loop-deactivate FEAC code to the connected equipment, which will remove the loopback. You can also insert a FEAC for the 28 individual DS-1 circuits transmuxed into a DS-3 circuit.

1.4.2  DS-3I Inhibit Loopback

DS-3E and DS-3I cards respond to (but do not send) DS-3-level FEAC codes. You can inhibit FEAC response on ports for these cards using the Inhibit Lbk check box on their Maintenance windows.

1.4.3  DS3XM-6 Inhibit FEAC Loopback

DS3XM-6 ports and transmuxed DS-1s initiate loopbacks when they receive FEAC Line Loop Codes. If the Inhibit FE Lbk check box is checked for a DS-3 port, that port ignores any FEAC Line Loop Codes it receives and will not loop back (return them). Only DS-3 ports can be configured to inhibit FEAC loopback responses; individual DS-1 ports (accessed on the DS3XM DS1 tab) cannot inhibit their responses. If you inhibit a DS-3 port's far end loopback response, this DS-3 port and the DS-1 lines it contains are not restricted from terminal (inward) or facility (line) loopbacks.

1.4.4  FEAC Alarms

When an ONS 15454 port receives an activation code for a FEAC loopback, it raises the LPBKDS1FEAC or LPBKDS3FEAC condition. The condition clears when the port receives the command to deactivate the FEAC loopback. If a node sends a FEAC loopback command to the far end, the sending node raises a LPBKDS1FEAC-CMD or a LPBKDS3FEAC-CMD condition for the port.

1.5  Identify Points of Failure on an Optical Circuit Path

Facility (line) loopbacks, terminal (inward) loopbacks, and cross-connect loopback circuits are often used together to test the circuit path through the network or to logically isolate a fault. Performing a loopback test at each point along the circuit path systematically isolates possible points of failure.

You can use these procedures on OC-N cards, G-Series Ethernet cards, transponder (TXP, TXPP) cards, and muxponder (MXP) cards. The example in this section tests an OC-N circuit on a three-node BLSR. Using a series of facility (line) loopbacks and terminal (inward) loopbacks, the example scenario traces the circuit path, tests the possible failure points, and eliminates them. The logical progression contains seven network test procedures:

Note The test sequence for your circuits will differ according to the type of circuit and network topology.

1. A facility (line) loopback on the source node OC-N (or G-Series, TXP, or MXP) port

2. A terminal (inward) loopback on the source node OC-N (or G-Series, TXP, or MXP) port

3. A cross-connect loopback on the source OC-N port

4. A facility (line) loopback on the intermediate node OC-N (or G-Series, TXP, or MXP) port

5. A terminal (inward) loopback on the intermediate node OC-N (or G-Series, TXP, or MXP) port

6. A facility (line) loopback on the destination node OC-N (or G-Series, TXP, or MXP) port

7. A terminal (inward) loopback on the destination node OC-N (or G-Series, TXP, or MXP) port

Note All loopback tests require on-site personnel.

1.5.1  Perform a Facility (Line) Loopback on a Source-Node G-Series, MXP, OC-N, or TXP Port

The facility (line) loopback test is performed on the node source port in the network circuit. In the testing situation used in this example, the source OC-N port in the source node. Completing a successful facility (line) loopback on this port isolates the OC-N port as a possible failure point. Figure 1-20 shows an example of a facility loopback on a circuit source OC-N port. G-Series Ethernet ports, TXPs, and MXPs are tested similarly.

Note Facility (line) loopbacks are not available for G-Series cards prior to software R4.1.

Figure 1-20 Facility (Line) Loopback on a Circuit Source OC-N Port

Caution Performing a loopback on an in-service circuit is service-affecting.

Create the Facility (Line) Loopback on the Source Port

Note This procedure does not apply to Software R4.6 E-Series Ethernet, ML-Series Ethernet, and DWDM cards.

Step 1 Connect an optical test set to the port you are testing.

Note Refer to the manufacturer's instructions for detailed information about connection and setup of the optical test set.

Use appropriate cabling to attach the Tx and Rx terminals of the optical test set to the port you are testing. The Tx and Rx terminals connect to the same port. Adjust the test set accordingly.

Step 2 In CTC node view, double-click the card to open the card view.

Step 3 Click the Maintenance > Loopback tabs.

Step 4 Choose OOS_MT from the State column for the port being tested. If this is a multiport card, select the appropriate row for the desired port.

Step 5 Choose Facility (Line) from the Loopback Type column for the port being tested. If this is a multiport card, select the appropriate row for the desired port.

Step 6 Click Apply.

Step 7 Click Yes in the confirmation dialog box.

Note It is normal for a "LPBKFACILITY (OCN)" condition on page 2-142, or a "LPBKFACILITY (G1000)" condition on page 2-142 to appear during loopback setup. The condition clears when you remove the loopback.

Step 8 Complete the "Test and Clear the Facility (Line) Loopback Circuit" procedure.

Test and Clear the Facility (Line) Loopback Circuit

Note This procedure does not apply to Software R4.6 E-Series Ethernet, ML-Series Ethernet, and DWDM cards.

Step 1 If the test set is not already sending traffic, send test traffic on the loopback circuit.

Step 2 Examine the traffic received by the test set. Look for errors or any other signal information that the test set is capable of indicating.

Step 3 If the test set indicates a good circuit, no further testing is necessary with the facility loopback. Clear the facility (line) loopback:

a. Click the Maintenance > Loopback tabs.

b. Choose None from the Loopback Type column for the port being tested.

c. Choose the appropriate state (IS, OOS, OOS_AINS) from the State column for the port being tested.

d. Click Apply.

e. Click Yes in the confirmation dialog box.

Step 4 Complete the "Perform a Terminal (Inward) Loopback on a Source-Node OC-N, G-Series, MXP, or TXP Port" procedure. If the test set indicates a faulty circuit, the problem might be a faulty card.

Step 5 Complete the "Test the OC-N, G-Series, MXP, or TXP Card" procedure.

Test the OC-N, G-Series, MXP, or TXP Card

Note This procedure does not apply to Software R4.6 E-Series Ethernet, ML-Series Ethernet, and DWDM cards.

Step 1 Complete the "Physically Replace a Card" procedure for the suspected bad card and replace it with a known-good one.

Step 2 Resend test traffic on the loopback circuit with a known-good card installed.

Step 3 If the test set indicates a good circuit, the problem was probably the defective card. Return the defective card to Cisco through the RMA process. Contact Cisco TAC (1 800 553-2447).

Step 4 Complete the "Physically Replace a Card" procedure for the faulty card.

Step 5 Clear the facility (line) loopback:

a. Click the Maintenance > Loopback tabs.

b. Choose None from the Loopback Type column for the port being tested.

c. Choose the appropriate state (IS, OOS, OOS_AINS) from the State column for the port being tested.

d. Click Apply.

e. Click Yes in the confirmation dialog box.

Step 6 Complete the "Perform a Terminal (Inward) Loopback on a Source-Node OC-N, G-Series, MXP, or TXP Port" procedure.

1.5.2  Perform a Terminal (Inward) Loopback on a Source-Node OC-N, G-Series, MXP, or TXP Port

The terminal (inward) loopback test is performed on the node source OC-N, G-Series, MXP, or TXP port. For the circuit in this example, it is the source OC-N port in the source node. You first create a bidirectional circuit that starts on the node destination OC-N port and loops back on the node source OC-N port.You then proceed with the terminal loopback test. Completing a successful terminal loopback to a node source port verifies that the circuit is good to the source port. Figure 1-21 shows an example of a terminal loopback on a source OC-N port.

Note Terminal (inward) loopbacks are not available for E-Series Ethernet, ML-Series Ethernet, and DWDM cards in R4.6.

Note Terminal (inward) loopbacks are not available for G-Series cards prior to R4.0.

Figure 1-21 Terminal (Inward) Loopback on a Source-Node OC-N Port

Figure 1-22 shows terminal loopback on a G-Series card.

Figure 1-22 Terminal (Inward) Loopback on a G-Series Port

Caution Performing a loopback on an in-service circuit is service-affecting.

Create the Terminal (Inward) Loopback on a Source Node Port

Note This procedure does not apply to Software R4.6 E-Series Ethernet, ML-Series Ethernet, and DWDM cards.

Step 1 Connect an optical test set to the port you are testing:

Note Refer to the manufacturer's instructions for detailed information about connection and setup of the optical test set.

a. If you just completed the "Perform a Facility (Line) Loopback on a Source-Node G-Series, MXP, OC-N, or TXP Port" procedure, leave the optical test set hooked up to the OC-N, G-Series, MXP, or TXP port in the source node.

b. If you are starting the current procedure without the optical test set hooked up to the source port, use appropriate cabling to attach the Tx and Rx terminals of the optical test set to the port you are testing. Both Tx and Rx connect to the same port.

c. Adjust the test set accordingly.

Step 2 Use CTC to set up the terminal (inward) loopback on the test port:

a. In node view, click the Circuits tab and click Create.

b. In the Circuit Creation dialog box, choose the type and size, such as an STS-1.

c. Click Next.

d. In the next Circuit Creation dialog box, give the circuit an easily identifiable name such as "OCn1toOCN2."

e. Leave the Bidirectional check box checked.

f. Click Next.

g. In the Circuit Creation source dialog box, select the same Node, card Slot, Port, and STS (or VT) where the test set is connected.

h. Click Next.

i. In the Circuit Creation destination dialog box, use the same Node, card Slot, Port, and STS (or VT) used for the source dialog box.

j. Click Finish.

Step 3 Confirm that the newly created circuit appears on the Circuits tab list as a 2-way circuit.

Note It is normal for the "LPBKTERMINAL (DS1, DS3, EC-1-12, OCN)" condition on page 2-144 to appear during a loopback setup. The condition clears when you remove the loopback.

Step 4 Create the terminal (inward) loopback on the destination port being tested:

a. In node view, double-click the card that requires the loopback, such as the destination OC-N card in the source node.

b. Click the Maintenance > Loopback tabs.

c. Select OOS_MT from the State column. If this is a multiport card, select the row appropriate for the desired port.

d. Select Terminal (Inward) from the Loopback Type column. If this is a multiport card, select the row appropriate for the desired port.

e. Click Apply.

f. Click Yes in the confirmation dialog box.

Step 5 Complete the "Test and Clear the Terminal Loopback Circuit" procedure.

Test and Clear the Terminal Loopback Circuit

Note This procedure does not apply to Software R4.6 E-Series Ethernet, ML-Series Ethernet, and DWDM cards.

Step 1 If the test set is not already sending traffic, send test traffic on the loopback circuit.

Step 2 Examine the test traffic being received by the test set. Look for errors or any other signal information that the test set is capable of indicating.

Step 3 If the test set indicates a good circuit, no further testing is necessary on the loopback circuit. Clear the terminal loopback state on the port:

a. Double-click the card in the source node with the terminal loopback.

b. Click the Maintenance > Loopback tabs.

c. Select None from the Loopback Type column for the port being tested.

d. Select the appropriate state (IS, OOS, OOS_AINS) in the State column for the port being tested.

e. Click Apply.

f. Click Yes in the confirmation dialog box.

Step 4 Clear the terminal loopback circuit:

a. Click the Circuits tab.

b. Choose the loopback circuit being tested.

c. Click Delete.

d. Click Yes in the Delete Circuits dialog box.

Step 5 Complete the "Create a Facility (Line) Loopback on an Intermediate-Node OC-N, G-Series, MXP, or TXP Port" procedure. If the test set indicates a faulty circuit, the problem might be a faulty card.

Step 6 Complete the "Test the OC-N, G-Series, MXP, or TXP Card" procedure.

Test the OC-N, G-Series, MXP, or TXP Card

Note This procedure does not apply to Software R4.6 E-Series Ethernet, ML-Series Ethernet, and DWDM cards.

Step 1 Complete the "Physically Replace a Card" procedure for the suspected bad card and replace it with a known-good one.

Step 2 Resend test traffic on the loopback circuit with a known-good card.

Step 3 If the test set indicates a good circuit, the problem was probably the defective card. Return the defective card to Cisco through the RMA process. Contact Cisco TAC (1 800 553-2447).

Step 4 Complete the "Physically Replace a Card" procedure for the defective card.

Step 5 Clear the terminal loopback on the port before testing the next segment of the network circuit path:

a. Double-click the card in the source node with the terminal loopback.

b. Click the Maintenance > Loopback tabs.

c. Select None from the Loopback Type column for the port being tested.

d. Select the appropriate state (IS, OOS, OOS_AINS) in the State column for the port being tested.

e. Click Apply.

f. Click Yes in the confirmation dialog box.

Step 6 Clear the terminal loopback circuit before testing the next segment of the network circuit path:

a. Click the Circuits tab.

b. Choose the loopback circuit being tested.

c. Click Delete.

d. Click Yes in the Delete Circuits dialog box.

Step 7 Complete the "Create the XC Loopback on the Source OC-N Port" procedure.

1.5.3  Create the XC Loopback on the Source OC-N Port

Note This procedure is only performed on OC-N cards and tests the XC-10G circuit connection.

The cross-connect (XC) loopback test occurs on the XC10G cross-connect card in a network circuit. Completing a successful XC loopback from an OC-N card through the cross-connect card eliminates the cross-connect card as the source of trouble for a faulty circuit. Figure 1-23 shows an example of an XC loopback on a source OC-N port.

Figure 1-23 XC Loopback on a Source OC-N Port

Step 1 Connect an optical test set to the port you are testing:

Note Refer to the manufacturer's instructions for detailed information about connection and setup of the optical test set.

a. If you just completed the "Perform a Terminal (Inward) Loopback on a Source-Node OC-N, G-Series, MXP, or TXP Port" procedure, leave the optical test set hooked up to the source node port.

b. If you are starting the current procedure without the optical test set hooked up to the source port, use appropriate cabling to attach the Tx and Rx terminals of the optical test set to the port you are testing. The Tx and Rx terminals connect to the same port.

c. Adjust the test set accordingly.

Step 2 Use CTC to put the circuit being tested out of service:

a. In node view, click the Circuits tab.

b. Click the circuit and then click Edit.

c. In the Edit Circuit dialog box, click the State tab.

d. Choose OOS-MT from the Target Circuit State drop-down list.

e. Click Apply.

f. Click Yes in the confirmation dialog box.

Step 3 Use CTC to set up the XC loopback on the circuit being tested:

a. In node view, double-click the OC-N card to open the card view.

b. Click the Provisioning > SONET STS tabs.

c. Click the check box in the XC Loopback column for the port being tested.

d. Click Apply.

e. Click Yes in the confirmation dialog.

Step 4 Complete the "Test the XC Loopback Circuit" procedure.

Test the XC Loopback Circuit

Note This procedure is performed only on OC-N cards.

Step 1 If the test set is not already sending traffic, send test traffic on the loopback circuit.

Step 2 Examine the test traffic received by the test set. Look for errors or any other signal information that the test set is capable of indicating.

Step 3 If the test set indicates a good circuit, no further testing is necessary with the cross-connect. Clear the XC loopback:

a. In card view, click the Provisioning > SONET STS tabs.

b. Uncheck the check box in the XC Loopback column for the circuit being tested.

c. Click Apply.

d. Click Yes in the confirmation dialog.

Step 4 Complete the "Create a Facility (Line) Loopback on an Intermediate-Node OC-N, G-Series, MXP, or TXP Port" procedure. If the test set indicates a faulty circuit, there might be a problem with the cross-connect card.

Step 5 Complete the "Test the Standby XC10G Cross-Connect Card" procedure.

Test the Standby XC10G Cross-Connect Card

Step 1 Perform a reset on the standby cross-connect card:

a. Determine the standby cross-connect card. On both the physical node and the CTC node view window, the standby cross-connect's ACT/SBY LED is amber and the active card's ACT/SBY LED is green.

b. Position the cursor over the standby cross-connect card.

c. Right-click and choose RESET CARD.

d. Click Yes in the confirmation dialog box.

Step 2 Initiate an external switching command (side switch) on the cross-connect cards before you retest the loopback circuit:

Caution Cross-connect side switches are service-affecting. Any live traffic on any card in the node endures a hit of up to 50 ms.

a. Determine the standby cross-connect card. On both the physical node and the CTC node view window, the standby cross-connect's ACT/SBY LED is amber and the active card's ACT/SBY LED is green.

b. In the node view, select the Maintenance > Cross-Connect > Card tabs.

c. In the Cross-Connect Cards area, click Switch.

d. Click Yes in the Confirm Switch dialog box.

Note After the active cross-connect goes into standby mode, the original standby card becomes active and its ACT/SBY LED turns green. The former active card becomes standby and its ACT/SBY LED turns amber.

Step 3 Resend test traffic on the loopback circuit.

The test traffic now travels through the alternate cross-connect card.

Step 4 If the test set indicates a faulty circuit, assume the cross-connect card is not causing the problem. Clear the XC loopback circuit:

a. Click the Circuits tab.

b. Choose the XC loopback circuit being tested.

c. Click Delete.

d. Click Yes in the Delete Circuits dialog box.

e. Confirm that the XC loopback circuit is deleted form the Circuits tab list. If the test set indicates a good circuit, the problem might be a defective cross-connect card.

Step 5 To confirm a defective original cross-connect card, complete the "Retest the Original XC10G Cross-Connect Card" procedure.

Retest the Original XC10G Cross-Connect Card

Note This procedure is performed only on OC-N and XC10G cards.

Step 1 Initiate an external switching command (side switch) on the cross-connect cards.

a. Determine the standby cross-connect card. On both the physical node and the CTC node view window, the standby cross-connect's ACT/SBY LED is amber and the active card's ACT/SBY LED is green.

b. In node view, select the Maintenance > Cross-Connect > Card tabs.

c. In the Cross-Connect Cards area, click Switch.

d. Click Yes in the Confirm Switch dialog box.

Note After the active cross-connect goes into standby mode, the original standby card becomes active and its ACT/SBY LED turns green. The former active card becomes standby and its ACT/SBY LED turns amber.

Step 2 Resend test traffic on the loopback circuit.

Step 3 If the test set indicates a faulty circuit, the problem is probably the defective card. Return the defective card to Cisco through the RMA process. Contact Cisco TAC (1 800 553-2447) and proceed to Step 4. If the circuit is not shown to be faulty and the card is not shown to be defective, you are finished with testing.

Step 4 Complete the "Replace an In-Service Cross-Connect Card" procedure on page 3-2 for the defective cross-connect card and perform Step 5.

Step 5 If the test set indicates a good circuit, the cross-connect card might have had a temporary problem that was cleared by the side switch. Clear the XC loopback circuit:

a. Click the Circuits tab.

b. Choose the XC loopback circuit being tested.

c. Click Delete.

d. Click Yes in the Delete Circuits dialog box.

1.5.4  Create a Facility (Line) Loopback on an Intermediate-Node G-Series, MXP, OC-N, or TXP Port

Performing the facility (line) loopback test on an intermediate port isolates whether this node is causing circuit failure. In the situation shown in Figure 1-24, the test is being performed on an intermediate OC-N port.

Figure 1-24 Facility (Line) Loopback on an Intermediate-Node OC-N Port

Caution Performing a loopback on an in-service circuit is service-affecting.

Create a Facility (Line) Loopback on an Intermediate-Node OC-N, G-Series, MXP, or TXP Port

Note This procedure does not apply to Software R4.6 E-Series Ethernet, ML-Series Ethernet, and DWDM cards.

Step 1 Connect an optical test set to the port you are testing:

Note Refer to the manufacturer's instructions for detailed information about connection and setup of the optical test set.

a. If you just completed the "Perform a Terminal (Inward) Loopback on a Source-Node OC-N, G-Series, MXP, or TXP Port" procedure, leave the optical test set hooked up to the source node port.

b. If you are starting the current procedure without the optical test set hooked up to the source port port, use appropriate cabling to attach the Tx and Rx terminals of the optical test set to the port you are testing. Both Tx and Rx connect to the same port.

c. Adjust the test set accordingly.

Step 2 Use CTC to set up the facility (line) loopback on the test port:

a. In node view, click the Circuits tab and click Create.

b. In the Circuit Creation dialog box, choose the type and size, such as an STS-1.

c. Click Next.

d. In the next Circuit Creation dialog box, give the circuit an easily identifiable name such as "OCn1toOCn3."

e. Leave the Bidirectional check box checked.

f. Click Next.

g. In the Circuit Creation source dialog box, select the same Node, card Slot, Port, and STS (or VT) where the test set is connected.

h. Click Next.

i. In the Circuit Creation destination dialog box, use the same Node, card Slot, Port, and STS (or VT) used for the source dialog box.

j. Click Finish.

Step 3 Confirm that the newly created circuit appears on the Circuits tab list as a 2-way circuit.

Note It is normal for the "LPBKFACILITY (G1000)" condition on page 2-142, or the "LPBKFACILITY (OCN)" condition on page 2-142 to appear during a loopback setup. The condition clears when you remove the loopback.

Step 4 Create the facility (line) loopback on the destination port being tested:

a. Go to the node view of the intermediate node:

•Choose View > Go To Other Node from the menu bar.

•Choose the node from the drop-down list in the Select Node dialog box and click OK.

b. In node view, double-click the intermediate node card that requires the loopback.

c. Click the Maintenance > Loopback tabs.

d. Select OOS_MT from the State column. If this is a multiport card, select the row appropriate for the desired port.

e. Select Facility (Line) from the Loopback Type column. If this is a multiport card, select the row appropriate for the desired port.

f. Click Apply.

g. Click Yes in the confirmation dialog box.

Step 5 Complete the "Test and Clear the Facility (Line) Loopback Circuit" procedure.

Test and Clear the Facility (Line) Loopback Circuit

Note This procedure does not apply to Software R4.6 E-Series Ethernet, ML-Series Ethernet, and DWDM cards.

Step 1 If the test set is not already sending traffic, send test traffic on the loopback circuit.

Step 2 Examine the traffic received by the test set. Look for errors or any other signal information that the test set is capable of indicating.

Step 3 If the test set indicates a good circuit, no further testing is necessary with the facility (line) loopback. Clear the facility loopback from the port:

a. Click the Maintenance > Loopback tabs.

b. Choose None from the Loopback Type column for the port being tested.

c. Choose the appropriate state (IS, OOS, OOS_AINS) from the State column for the port being tested.

d. Click Apply.

e. Click Yes in the confirmation dialog box.

Step 4 Clear the facility (line) loopback circuit:

a. Click the Circuits tab.

b. Choose the loopback circuit being tested.

c. Click Delete.

d. Click Yes in the Delete Circuits dialog box.

Step 5 Complete the "Create a Terminal Loopback on Intermediate-Node OC-N, G-Series, MXP, or TXP Ports" procedure. If the test set indicates a faulty circuit, the problem might be a faulty OC-N card.

Step 6 Complete the "Test the OC-N, G-Series, MXP, or TXP Card" procedure.

Test the OC-N, G-Series, MXP, or TXP Card

Note This procedure does not apply to Software R4.6 E-Series Ethernet, ML-Series Ethernet, and DWDM cards.

Step 1 Complete the "Physically Replace a Card" procedure for the suspected bad card and replace it with a known-good one.

Step 2 Resend test traffic on the loopback circuit with a known-good card installed.

Step 3 If the test set indicates a good circuit, the problem was probably the defective card. Return the defective card to Cisco through the RMA process. Contact Cisco TAC (1 800 553-2447).

Step 4 Complete the "Physically Replace a Card" procedure for the faulty card.

Step 5 Clear the facility (line) loopback from the port:

a. Click the Maintenance > Loopback tabs.

b. Choose None from the Loopback Type column for the port being tested.

c. Choose the appropriate state (IS, OOS, OOS_AINS) from the State column for the port being tested.

d. Click Apply.

e. Click Yes in the confirmation dialog box.

Step 6 Clear the facility loopback circuit:

a. Click the Circuits tab.

b. Choose the loopback circuit being tested.

c. Click Delete.

d. Click Yes in the Delete Circuits dialog box.

Step 7 Complete the "Create a Terminal Loopback on Intermediate-Node OC-N, G-Series, MXP, or TXP Ports" procedure.

1.5.5  Create a Terminal (Inward) Loopback on Intermediate-Node OC-N, G-Series, MXP, or TXP Ports

In the next troubleshooting test, you perform a terminal loopback on the intermediate-node port to isolate whether the destination port is causing circuit trouble. In the example situation in Figure 1-25, the terminal loopback is performed on an intermediate OC-N port in the circuit. You first create a bidirectional circuit that originates on the source node OC-N, G-Series, MXP, or TXP port and loops back on the intermediate-node port. You then proceed with the terminal loopback test. If you successfully complete a terminal loopback on the node, this node is excluded from possible sources of circuit trouble.

Figure 1-25 Terminal Loopback on an Intermediate-Node OC-N Port

Caution Performing a loopback on an in-service circuit is service-affecting.

Create a Terminal Loopback on Intermediate-Node OC-N, G-Series, MXP, or TXP Ports

Note This procedure does not apply to Software R4.6 E-Series Ethernet, ML-Series Ethernet, and DWDM cards.

Step 1 Connect an optical test set to the port you are testing:

Note Refer to the manufacturer's instructions for detailed information about connection and setup of the optical test set.

a. If you just completed the "Create a Facility (Line) Loopback on an Intermediate-Node OC-N, G-Series, MXP, or TXP Port" section, leave the optical test set hooked up to the source node port.

b. If you are starting the current procedure without the optical test set hooked up to the source port, use appropriate cabling to attach the Tx and Rx terminals of the optical test set to the port you are testing. Both Tx and Rx connect to the same port.

c. Adjust the test set accordingly.

Step 2 Use CTC to set up the terminal (inward) loopback on the test port:

a. In node view, click the Circuits tab and click Create.

b. In the Circuit Creation dialog box, choose the type and size, such as an STS-1.

c. Click Next.

d. In the next Circuit Creation dialog box, give the circuit an easily identifiable name such as "OCn1toOCn4."

e. Leave the Bidirectional check box checked.

f. Click Next.

g. In the Circuit Creation source dialog box, select the same Node, card Slot, Port, and STS (or VT) where the test set is connected.

h. Click Next.

i. In the Circuit Creation destination dialog box, use the same Node, card Slot, Port, and STS (or VT) used for the source dialog box.

j. Click Finish.

Step 3 Confirm that the newly created circuit appears on the Circuits tab list and that it is described in the Dir column as a 2-way circuit.

Note It is normal for the "LPBKTERMINAL (DS1, DS3, EC-1-12, OCN)" condition on page 2-144 to appear during a loopback setup. The condition clears when you remove the loopback.

Step 4 Create the terminal loopback on the destination port being tested:

a. Go to the node view of the intermediate node:

•Choose View > Go To Other Node from the menu bar.

•Choose the node from the drop-down list in the Select Node dialog box and click OK.

b. In node view, double-click the card that requires the loopback.

c. Click the Maintenance > Loopback tabs.

d. Select OOS_MT from the State column. If this is a multiport card, select the row appropriate for the desired port.

e. Select Terminal (Inward) from the Loopback Type column. If this is a multiport card, select the row appropriate for the desired port.

f. Click Apply.

g. Click Yes in the confirmation dialog box.

Step 5 Complete the "Test and Clear the Terminal Loopback Circuit" procedure.

Test and Clear the Terminal Loopback Circuit

Note This procedure does not apply to Software R4.6 E-Series Ethernet, ML-Series Ethernet, and DWDM cards.

Step 1 If the test set is not already sending traffic, send test traffic on the loopback circuit.

Step 2 Examine the test traffic being received by the test set. Look for errors or any other signal information that the test set is capable of indicating.

Step 3 If the test set indicates a good circuit, no further testing is necessary on the loopback circuit. Clear the terminal loopback from the port:

a. Double-click the intermediate node card with the terminal loopback to open the card view.

b. Click the Maintenance > Loopback tabs.

c. Select None from the Loopback Type column for the port being tested.

d. Select the appropriate state (IS, OOS, OOS_AINS) in the State column for the port being tested.

e. Click Apply.

f. Click Yes in the confirmation dialog box.

Step 4 Clear the terminal loopback circuit:

a. Click the Circuits tab.

b. Choose the loopback circuit being tested.

c. Click Delete.

d. Click Yes in the Delete Circuits dialog box.

Step 5 Complete the "Perform a Facility (Line) Loopback on a Destination-Node OC-N, G-Series, MXP, or TXP Port" procedure. If the test set indicates a faulty circuit, the problem might be a faulty card.

Step 6 Complete the "Test the OC-N, G-Series, MXP, or TXP Card" procedure.

Test the OC-N, G-Series, MXP, or TXP Card

Note This procedure does not apply to Software R4.6 E-Series Ethernet, ML-Series Ethernet, and DWDM cards.

Step 1 Complete the "Physically Replace a Card" procedure for the suspected bad card and replace it with a known-good one.

Step 2 Resend test traffic on the loopback circuit with a known-good card.

Step 3 If the test set indicates a good circuit, the problem was probably the defective card. Return the defective card to Cisco through the RMA process. Contact Cisco TAC (1 800 553-2447).

Step 4 Complete the "Physically Replace a Card" procedure for the defective card.

Step 5 Clear the terminal loopback on the port:

a. Double-click the source node card with the terminal loopback.

b. Click the Maintenance > Loopback tabs.

c. Select None from the Loopback Type column for the port being tested.

d. Select the appropriate state (IS, OOS, OOS_AINS) in the State column for the port being tested.

e. Click Apply.

f. Click Yes in the confirmation dialog box.

Step 6 Clear the terminal loopback circuit:

a. Click the Circuits tab.

b. Choose the loopback circuit being tested.

c. Click Delete.

d. Click Yes in the Delete Circuits dialog box.

Step 7 Complete the "Perform a Facility (Line) Loopback on a Destination-Node OC-N, G-Series, MXP, or TXP Port" procedure.

1.5.6  Perform a Facility (Line) Loopback on a Destination-Node OC-N, G-Series, MXP, or TXP Port

You perform a facility (line) loopback test at the destination port to determine whether this local port is the source of circuit trouble. The example in Figure 1-26 shows a facility loopback being performed on an OC-N port, but you can also use this procedure on G-Series, MXP, or TXP cards.

Figure 1-26 Facility (Line) Loopback on a Destination Node OC-N Port

Caution Performing a loopback on an in-service circuit is service-affecting.

Create the Facility (Line) Loopback on a Destination Node OC-N, G-Series, MXP, or TXP Port

Note This procedure does not apply to Software R4.6 E-Series Ethernet, ML-Series Ethernet, and DWDM cards.

Step 1 Connect an optical test set to the port you are testing:

Note Refer to the manufacturer's instructions for detailed information about connection and setup of the optical test set.

a. If you just completed the "Create a Terminal Loopback on Intermediate-Node OC-N, G-Series, MXP, or TXP Ports" procedure, leave the optical test set hooked up to the source node port.

b. If you are starting the current procedure without the optical test set hooked up to the source port, use appropriate cabling to attach the Tx and Rx terminals of the optical test set to the port you are testing. Both Tx and Rx connect to the same port.

c. Adjust the test set accordingly.

Step 2 Use CTC to set up the hairpin circuit on the test port:

a. In node view, click the Circuits tab and click Create.

b. In the Circuit Creation dialog box, choose the type and size, such as an STS-1.

c. Click Next.

d. In the next Circuit Creation dialog box, give the circuit an easily identifiable name such as "OCn1toOCn5."

e. Leave the Bidirectional check box checked.

f. Click Next.

g. In the Circuit Creation source dialog box, select the same Node, card Slot, Port, and STS (or VT) where the test set is connected.

h. Click Next.

i. In the Circuit Creation destination dialog box, use the same Node, card Slot, Port, and STS (or VT) used for the source dialog box.

j. Click Finish.

Step 3 Confirm that the newly created circuit appears on the Circuits tab list as a 2-way circuit.

Note It is normal for a "LPBKFACILITY (G1000)" condition on page 2-142, or a "LPBKFACILITY (OCN)" condition on page 2-142 to appear during a loopback setup. The condition clears when you remove the loopback.

Step 4 Create the facility (line) loopback on the destination port being tested:

a. Go to the node view of the destination node:

•Choose View > Go To Other Node from the menu bar.

•Choose the node from the drop-down list in the Select Node dialog box and click OK.

b. In node view, double-click the card that requires the loopback.

c. Click the Maintenance > Loopback tabs.

d. Select OOS_MT from the State column. If this is a multiport card, select the row appropriate for the desired port.

e. Select Facility (Line) from the Loopback Type column. If this is a multiport card, select the row appropriate for the desired port.

f. Click Apply.

g. Click Yes in the confirmation dialog box.

Step 5 Complete the "Test and Clear the Facility (Line) Loopback Circuit" procedure.

Test and Clear the Facility (Line) Loopback Circuit

Note This procedure does not apply to Software R4.6 E-Series Ethernet, ML-Series Ethernet, and DWDM cards.

Step 1 If the test set is not already sending traffic, send test traffic on the loopback circuit.

Step 2 Examine the traffic received by the test set. Look for errors or any other signal information that the test set is capable of indicating.

Step 3 If the test set indicates a good circuit, no further testing is necessary with the facility loopback. Clear the facility (line) loopback from the port:

a. Click the Maintenance > Loopback tabs.

b. Choose None from the Loopback Type column for the port being tested.

c. Choose the appropriate state (IS, OOS, OOS_AINS) from the State column for the port being tested.

d. Click Apply.

e. Click Yes in the confirmation dialog box.

Step 4 Clear the facility (line) loopback circuit:

a. Click the Circuits tab.

b. Choose the loopback circuit being tested.

c. Click Delete.

d. Click Yes in the Delete Circuits dialog box.

Step 5 Complete the "Perform a Terminal Loopback on a Destination Node OC-N, G-Series, MXP, or TXP Port" procedure. If the test set indicates a faulty circuit, the problem might be a faulty OC-N card.

Step 6 Complete the "Test the OC-N, G-Series, MXP, or TXP Card" procedure.

Test the OC-N, G-Series, MXP, or TXP Card

Note This procedure does not apply to Software R4.6 E-Series Ethernet, ML-Series Ethernet, and DWDM cards.

Step 1 Complete the "Physically Replace a Card" procedure for the suspected bad card and replace it with a known-good one.

Step 2 Resend test traffic on the loopback circuit with a known-good card installed.

Step 3 If the test set indicates a good circuit, the problem was probably the defective card. Return the defective card to Cisco through the RMA process. Contact Cisco TAC (1 800 553-2447).

Step 4 Complete the "Physically Replace a Card" procedure for the faulty card.

Step 5 Clear the facility (line) loopback on the port:

a. Click the Maintenance > Loopback tabs.

b. Choose None from the Loopback Type column for the port being tested.

c. Choose the appropriate state (IS, OOS, OOS_AINS) from the State column for the port being tested.

d. Click Apply.

e. Click Yes in the confirmation dialog box.

Step 6 Clear the facility loopback circuit:

a. Click the Circuits tab.

b. Choose the loopback circuit being tested.

c. Click Delete.

d. Click Yes in the Delete Circuits dialog box.

Step 7 Complete the "Perform a Terminal Loopback on a Destination Node OC-N, G-Series, MXP, or TXP Port" procedure.

1.5.7  Perform a Terminal Loopback on a Destination Node OC-N, G-Series, MXP, or TXP Port

The terminal loopback at the destination node port is the final local hardware error elimination in the circuit troubleshooting process. If this test is completed successfully, you have verified that the circuit is good up to the destination port. The example in Figure 1-27 shows a terminal loopback on an intermediate node destination OC-N port.

Figure 1-27 Terminal Loopback on a Destination Node OC-N Port

Caution Performing a loopback on an in-service circuit is service-affecting.

Create the Terminal Loopback on a Destination Node OC-N, G-Series, MXP, or TXP Port

Note This procedure does not apply to Software R4.6 E-Series Ethernet, ML-Series Ethernet, and DWDM cards.

Step 1 Connect an optical test set to the port you are testing:

Note Refer to the manufacturer's instructions for detailed information about connection and setup of the optical test set.

a. If you just completed the "Perform a Facility (Line) Loopback on a Destination-Node OC-N, G-Series, MXP, or TXP Port" procedure, leave the optical test set hooked up to the source port.

b. If you are starting the current procedure without the optical test set hooked up to the source port, use appropriate cabling to attach the Tx and Rx terminals of the optical test set to the port you are testing. Both Tx and Rx connect to the same port.

c. Adjust the test set accordingly.

Step 2 Use CTC to set up the terminal loopback on the test port:

a. In node view, click the Circuits tab and click Create.

b. In the Circuit Creation dialog box, choose the type and size, such as an STS-1.

c. Click Next.

d. In the next Circuit Creation dialog box, give the circuit an easily identifiable name such as "OCn1toOCn6."

e. Leave the Bidirectional check box checked.

f. Click Next.

g. In the Circuit Creation source dialog box, select the same Node, card Slot, Port, and STS (or VT) where the test set is connected.

h. Click Next.

i. In the Circuit Creation destination dialog box, use the same Node, card Slot, Port, and STS (or VT) used for the source dialog box.

j. Click Finish.

Step 3 Confirm that the newly created circuit appears on the Circuits tab list as a 2-way circuit.

Note It is normal for the "LPBKTERMINAL (DS1, DS3, EC-1-12, OCN)" condition on page 2-144 to appear during a loopback setup. The condition clears when you remove the loopback.

Step 4 Create the terminal loopback on the destination port being tested:

a. Go to the node view of the destination node:

•Choose View > Go To Other Node from the menu bar.

•Choose the node from the drop-down list in the Select Node dialog box and click OK.

b. In node view, double-click the card that requires the loopback.

c. Click the Maintenance > Loopback tabs.

d. Select OOS_MT from the State column. If this is a multiport card, select the row appropriate for the desired port.

e. Select Terminal (Inward) from the Loopback Type column. If this is a multiport card, select the row appropriate for the desired port.

f. Click Apply.

g. Click Yes in the confirmation dialog box.

Step 5 Complete the "Test and Clear the Terminal Loopback Circuit" procedure.

Test and Clear the Terminal Loopback Circuit

Note This procedure does not apply to Software R4.6 E-Series Ethernet, ML-Series Ethernet, and DWDM cards.

Step 1 If the test set is not already sending traffic, send test traffic on the loopback circuit.

Step 2 Examine the test traffic being received by the test set. Look for errors or any other signal information that the test set is capable of indicating.

Step 3 If the test set indicates a good circuit, no further testing is necessary on the loopback circuit. Clear the terminal loopback from the port:

a. Double-click the intermediate node card with the terminal loopback.

b. Click the Maintenance > Loopback tabs.

c. Select None from the Loopback Type column for the port being tested.

d. Select the appropriate state (IS, OOS, OOS_AINS) in the State column for the port being tested.

e. Click Apply.

f. Click Yes in the confirmation dialog box.

Step 4 Clear the terminal loopback circuit:

a. Click the Circuits tab.

b. Choose the loopback circuit being tested.

c. Click Delete.

d. Click Yes in the Delete Circuits dialog box.

The entire circuit path has now passed its comprehensive series of loopback tests. This circuit qualifies to carry live traffic.

Step 5 If the test set indicates a faulty circuit, the problem might be a faulty card.

Step 6 Complete the "Test the OC-N, G-Series, MXP, or TXP Card" procedure.

Test the OC-N, G-Series, MXP, or TXP Card

Note This procedure does not apply to Software R4.6 E-Series Ethernet, ML-Series Ethernet, and DWDM cards.

Step 1 Complete the "Physically Replace a Card" procedure for the suspected bad card and replace it with a known-good card.

Step 2 Resend test traffic on the loopback circuit with a known-good card.

Step 3 If the test set indicates a good circuit, the problem was probably the defective card. Return the defective card to Cisco through the RMA process. Contact Cisco TAC (1 800 553-2447).

Step 4 Complete the "Physically Replace a Card" procedure for the defective card.

Step 5 Clear the terminal loopback on the port:

a. Double-click the source node card with the terminal loopback.

b. Click the Maintenance > Loopback tabs.

c. Select None from the Loopback Type column for the port being tested.

d. Select the appropriate state (IS, OOS, OOS_AINS) in the State column for the port being tested.

e. Click Apply.

f. Click Yes in the confirmation dialog box.

Step 6 Clear the terminal loopback circuit:

a. Click the Circuits tab.

b. Choose the loopback circuit being tested.

c. Click Delete.

d. Click Yes in the Delete Circuits dialog box.

The entire circuit path has now passed its comprehensive series of loopback tests. This circuit qualifies to carry live traffic.

1.6  Restoring the Database and Default Settings

This section contains troubleshooting for node operation errors that require restoration of software data or the default node setup.

1.6.1  Restore the Node Database

Symptom: One or more nodes are not functioning properly or have incorrect data.

Table 1-2 describes the potential causes of the symptom and the solution.

Restore the Database

Note The following parameters are not backed up and restored: node name, IP address, subnet mask and gateway, and Internet Inter-ORB Protocol (IIOP) port. If you change the node name and then restore a backed up database with a different node name, the circuits map to the new renamed node. Cisco recommends keeping a record of the old and new node names.

Caution E1000-2 cards lose traffic for approximately 90 seconds when an ONS 15454 database is restored. Traffic is lost during the period of spanning tree reconvergence. The CARLOSS (E100T, E1000F) alarm appears and clears during this period.

Caution If you are restoring the database on multiple nodes, wait approximately one minute after the TCC2 reboot has completed on each node before proceeding to the next node.

Step 1 In CTC, log into the node where you will restore the database:

a. On the PC connected to the ONS 15454, start Netscape or Internet Explorer.

b. In the Netscape or Internet Explorer Web address (URL) field, enter the ONS 15454 IP address.

A Java Console window displays the CTC file download status. The web browser displays information about your Java and system environments. If this is the first login, CTC caching messages appear while CTC files are downloaded to your computer. The first time you connect to an ONS 15454, this process can take several minutes. After the download, the CTC Login dialog box appears.

c. In the Login dialog box, type a user name and password (both are case sensitive) and click Login. The CTC node view window appears.

Step 2 Ensure that no ring or span (four-fiber only) switch events are present; for example, ring-switch east or west and span-switch east or west. In network view, click the Conditions tab and click Retrieve to view a list of conditions.

Step 3 If switch events need to be cleared, in node view click the Maintenance > BLSR tabs and view the West Switch and East Switch columns.

a. If a switch event (not caused by a line failure) is present, choose CLEAR from the drop-down menu and click Apply.

b. If a switch event caused by the Wait to Restore (WTR) condition is present, choose LOCKOUT SPAN from the drop-down menu and click Apply. When the LOCKOUT SPAN is applied, choose CLEAR from the drop-down menu and click Apply.

Step 4 In node view, click the Maintenance > Database tabs.

Step 5 Click Restore.

Step 6 Locate the database file stored on the workstation hard drive or on network storage.

Note To clear all existing provisioning, locate and upload the database found on the latest ONS 15454 software CD.

Step 7 Click the database file to highlight it.

Step 8 Click Open. The DB Restore dialog box appears. Opening a restore file from another node or from an earlier backup might affect traffic on the login node.

Step 9 Click Yes.

The Restore Database dialog box monitors the file transfer.

Step 10 Wait for the file to complete the transfer to the TCC2.

Step 11 Click OK when the "Lost connection to node, changing to Network View" dialog box appears. Wait for the node to reconnect.

Step 12 If you cleared a switch in Step 3, reapply the switch as needed.

1.6.2  Restore the Node to Factory Configuration

Symptom    A node has both TCC2 cards in standby state, and you are unable reset the TCC2 cards to make the node functional.

Table 1-3 describes the possible problems and the solution.

Caution Cisco strongly recommends that you keep different node databases in separate folders. This is because the reinit tool chooses the first product-specific software package in the specified directory if you use the Search Path field instead of the Package and Database fields. You might accidentally copy an incorrect database if multiple databases are kept in the specified directory.

Caution Restoring a node to the factory configuration deletes all cross-connects on the node.

Caution If you are restoring the database on multiple nodes, wait until the TCC2 cards have rebooted on each node before proceeding to the next node.

Caution Restoring a node to factory configuration on a Windows or UNIX workstation should only be carried out on a standby TCC2 card.

Caution Cisco recommends that you take care to save the node database to a safe location if you will not be restoring the node using the database provided on the software CD.

Note The following parameters are not backed up and restored when you delete the database and restore the factory settings: node name, IP address, subnet mask and gateway, and IIOP port. If you change the node name and then restore a backed up database with a different node name, the circuits map to the new renamed node. Cisco recommends keeping a record of the old and new node names.

Note If the software package files and database backup files are located in different directories, complete the Package and Database fields (Figure 1-28).

Note If you need to install or replace one or more TCC2 cards, refer to the Cisco ONS 15454 Procedure Guide for installation instructions.

Use the Reinitialization Tool to Clear the Database and Upload Software (Windows)

Caution Restoring a node to the factory configuration deletes all cross-connects on the node.

Caution Restoring a node to factory configuration on a Windows workstation should only be carried out on a standby TCC2 card.

Note The TCC2 cards reboot several times during this procedure. Wait until they are completely rebooted before continuing.

Step 1 Insert the system software CD containing the reinit tool, software, and defaults database into the computer CD-ROM drive. If the CTC Installation Wizard appears, click Cancel.

Step 2 To find the recovery tool file, go to Start > Run > Browse and select the CD drive.

Step 3 On the CD drive, go to the CISCO15454 folder and choose All Files from the Files of Type drop-down menu.

Step 4 Select the RE-INIT.jar file and click Open to open the reinit tool (Figure 1-28).

Figure 1-28 Reinitialization Tool in Windows

Step 5 If the node you are reinitializing is an external network element (ENE) in a proxy server network, enter the IP address of the gateway network element (GNE) in the GNE IP field. If not, leave it blank.

Step 6 Enter the node name or IP address of the node you are reinitializing in the Node IP field (Figure 1-28).

Step 7 If the User ID field does not contain your user ID, enter the ID. Enter your password in the Password field.

Step 8 Verify that the Re-Init Database, Upload Package, and Confirm check boxes are checked. If one is not checked, check the check box.

Step 9 If you are uploading the same version of software that is already active (for example, you are trying to upload version 4.6 when version 4.6 is already active), check the Force Upload checkbox.This option forces the NE to have the same software version on the working and protect flash memory.

Note The Force Upload box is only applicable when the Upload Package checkbox is checked.

Step 10 In the Search Path field, verify that the path to the CISCO15454 folder on the CD drive is listed.

Caution Before you perform the next step, be sure you are uploading the correct database. You cannot reverse the upload process after you click Yes.

Step 11 Click Go. A confirmation dialog box appears.

Step 12 Click Yes.

Step 13 The status bar at the bottom of the screen displays Complete when the node has activated the software and uploaded the database.

Note The Complete message only indicates that the TCC2 successfully uploaded the database, not that the database restore was successful. The TCC2 then tries to restore the database after it reboots.

Step 14 If you are logged into CTC, close the browser window and disconnect the straight-through LAN cable from the RJ-45 (LAN) port on the TCC2 card or on the hub or switch to which the ONS 15454 is physically connected. Reconnect your straight-through LAN cable to the LAN port and log back into CTC.

Step 15 Manually set the node name and network configuration to site-specific values. See the Cisco ONS 15454 Procedure Guide for information about setting the node name, IP address, mask and gateway, and IIOP port.

Use the Reinitialization Tool to Clear the Database and Upload Software (UNIX)

Caution Restoring a node to the factory configuration deletes all cross-connects on the node.

Caution Restoring a node to factory configuration on a UNIX workstation should only be carried out on a standby TCC2 card.

Note The TCC2 cards reboot several times during this procedure. Wait until they are completely rebooted before continuing.

Note Java Runtime Environment (JRE) 1.03_02 must also be installed on the computer you use to perform this procedure.

Step 1 Insert the system software CD containing the reinit tool, software, and defaults database into the computer CD-ROM drive. If the CTC Installation Wizard appears, click Cancel.

Step 2 To find the recovery tool file, go to the CISCO15454 directory on the CD (usually /cdrom/cdrom0/CISCO15454).

Step 3 If you are using a file explorer, double-click the RE-INIT.jar file to open the reinit tool (Figure 1-29). If you are working with a command line interface, run java -jar RE-INIT.jar.

Figure 1-29 Reinitialization Tool in UNIX

Step 4 If the node you are reinitializing is an ENE in a proxy server network, enter the IP address of the GNE in the GNE IP field. If not, leave it blank.

Step 5 Enter the node name or IP address of the node you are reinitializing in the Node IP field (Figure 1-29).

Step 6 If the User ID field does not contain your user ID, enter the ID. Enter your password in the Password field.

Step 7 Verify that the Re-Init Database, Upload Package, and Confirm check boxes are checked. If one is not checked, check the check box.

Step 8 If you are uploading the same version of software that is already active (for example, you are trying to upload version 4.6 when version 4.6 is already active), check the Force Upload checkbox. This option forces the NE to have the same software version on the working and protect flash memory.

Step 9 In the Search Path field, verify that the path to the CISCO15454 folder on the CD-ROM drive is listed.

Caution Before you perform the next step, be sure you are uploading the correct database. You cannot reverse the upload process after you click Yes.

Step 10 Click Go. A confirmation dialog box appears.

Step 11 Click Yes.

Step 12 The status bar at the bottom of the screen displays Complete when the node has activated the software and uploaded the database.

Note The Complete message only indicates that the TCC2 successfully uploaded the database; not that the database restore was successful. The TCC2 then tries to restore the database after it reboots.

Step 13 If you are logged into CTC, close the browser window and disconnect the straight-through LAN cable from the RJ-45 (LAN) port on the TCC2 card or on the hub or switch where the ONS 15454 is physically connected. Reconnect your straight-through LAN cable to the LAN port and log back into CTC.

Step 14 Set the node name and network configuration to site-specific values. Refer to the Cisco ONS 15454 Procedure Guide for information about provisioning the node name, IP address, subnet mask and gateway, and IIOP port.

1.7  PC Connectivity Troubleshooting

This section contains information about system minimum requirements, supported platforms, browsers, and JREs for R4.6, and troubleshooting procedures for PC and network connectivity to the ONS 15454.

1.7.1  PC System Minimum Requirements

Workstations running CTC R4.6 for the ONS products on Windows platforms need to have the following minimum requirements:

•Pentium III or higher processor

•Processor speed of at least 700 MHz

•256 Mb or more of RAM

•50 Mb or more of available hard disk space

•20 GB or larger hard drive

1.7.2  Sun System Minimum Requirements

Workstations running CTC R4.6 for the ONS products on Sun workstations need to have the following minimum requirements:

•UltraSPARC or faster processor

•256 Mb or more of RAM

•50 Mb or more of available hard disk space

1.7.3  Supported Platforms, Browsers, and JREs

Software R4.6 CTC supports the following platforms:

•Windows NT

•Windows 98

•Windows XP

•Windows 2000

•Solaris 8

•Solaris 9

Software R4.6 CTC supports the following browsers and JREs:

•Netscape 4.76 (on Solaris 8 or 9 with Java plug-in 1.3.1)

•Netscape 7 (on Solaris 8 or 9 with Java plug-in 1.4)

•PC platforms with Java plug-in 1.3.1 or 1.4

•Internet Explorer 6.0 (on PC platforms with Java plug-in 1.3.1 or 1.4)

Note You can obtain browsers at the following URLs:
Netscape: http://channels.netscape.com/ns/browsers/default.jsp
Internet Explorer: http://www.microsoft.com

Note The recommended JRE version is JRE 1.4.2.

Note JRE 1.4.2 for Windows and Solaris is available on R4.6 product CDs.

1.7.4  Unsupported Platforms and Browsers

Software R4.6 does not support the following platforms:

•Windows 95

•Solaris 2.5

•Solaris 2.6

Software R4.6 does not support the following browsers and JREs:

•Netscape 4.73 for Windows.

•Netscape 4.76 on Solaris is not supported except when used with JRE 1.3.1.

•JRE 1.4.2 is not supported except with Netscape 7 on Solaris 8 or 9.

1.7.5  Unable to Verify the IP Configuration of Your PC

Symptom    When connecting your PC to the ONS 15454, you are unable to successfully ping the IP address of your PC to verify the IP configuration.

Table 1-4 describes the possible problems and the solutions.

Verify the IP Configuration of Your PC

Step 1 Open a DOS command window by selecting Start > Run from the Start menu.

Step 2 In the Open field, type command and then click OK. The DOS command window appears.

Step 3 At the prompt in the DOS window, type one of the following commands:

•For Windows 98, NT, and 2000, type ipconfig and press the Enter key.

The Windows IP configuration information appears, including the IP address, subnet mask, and the default gateway.

Note The winipcfg command only returns the information above if you are on a network.

Step 4 At the prompt in the DOS window, type ping followed by the IP address shown in the Windows IP configuration information previously displayed.

Step 5 Press the Enter key to execute the command.

If the DOS window returns multiple (usually four) replies, the IP configuration is working properly.

If you do not receive a reply, your IP configuration might not be properly set. Contact your Network Administrator for instructions to correct the IP configuration of your PC.

1.7.6  Browser Login Does Not Launch Java

Symptom    The message "Loading Java Applet" does not appear and the JRE does not launch during the initial login.

Table 1-5 describes the possible problem and the solution.

Reconfigure the PC Operating System Java Plug-in Control Panel

Step 1 From the Windows start menu, click Settings > Control Panel.

Step 2 If Java Plug-in does not appear, the JRE might not be installed on your PC.

a. Run the Cisco ONS 15454 software CD.

b. Open the CD-drive:\Windows\JRE folder.

c. Double-click the j2re-1_4_2-win icon to run the JRE installation wizard.

d. Follow the JRE installation wizard steps.

Step 3 From the Windows start menu, click Settings > Control Panel.

Step 4 In the Java Plug-in Control Panel window, double-click the Java Plug-in 1.4.2 icon.

Step 5 Click the Advanced tab on the Java Plug-in Control Panel.

Step 6 Navigate to C:\ProgramFiles\JavaSoft\JRE\1.4.2.

Step 7 Select JRE 1.4.

Step 8 Click Apply.

Step 9 Close the Java Plug-in Control Panel window.

Reconfigure the Browser

Step 1 From the Start Menu, launch your browser application.

Step 2 If you are using Netscape Navigator:

a. On the Netscape Navigator menu bar, click the Edit > Preferences menus.

b. In the Preferences window, click the Advanced > Proxies categories.

c. In the Proxies window, click the Direct connection to the Internet check box and click OK.

d. On the Netscape Navigator menu bar, click the Edit > Preferences menus.

e. In the Preferences window, click the Advanced > Cache categories.

f. Confirm that the Disk Cache Folder field shows one of the following paths:

•For Windows 98/ME, C:\ProgramFiles\Netscape\Communicator\cache

•For Windows NT/2000, C:\ProgramFiles\Netscape\username\Communicator\cache.

g. If the Disk Cache Folder field is not correct, click Choose Folder.

h. Navigate to the file listed in Step f, and click OK.

i. Click OK on the Preferences window and exit the browser.

Step 3 If you are using Internet Explorer:

a. On the Internet Explorer menu bar, click the Tools > Internet Options menus.

b. In the Internet Options window, click the Advanced tab.

c. In the Settings menu, scroll down to Java (Sun) and click the Use Java 2 v1.4.2 for applet (requires restart) check box.

d. Click OK in the Internet Options window and exit the browser.

Step 4 Temporarily disable any virus-scanning software on the computer. See the "Browser Stalls When Downloading CTC JAR Files From TCC2" section.

Step 5 Verify that the computer does not have two network interface cards (NICs) installed. If the computer does have two NICs, remove one.

Step 6 Restart the browser and log on to the ONS 15454.

1.7.7  Unable to Verify the NIC Connection on Your PC

Symptom    When connecting your PC to the ONS 15454, you are unable to verify the NIC connection is working properly because the link LED is not illuminated or flashing.

Table 1-6 describes the possible problems and the solutions.

1.7.8  Verify PC Connection to the ONS 15454 (ping)

Symptom    The TCP/IP connection was established and then lost.

Table 1-7 describes the possible problem and the solution.

Ping the ONS 15454

Step 1 Display the command prompt:

a. If you are using a Microsoft Windows operating system, from the Start Menu choose Run, type command in the Open field of the Run dialog box, and click OK.

b. If you are using a Sun Solaris operating system, from the Common Desktop Environment (CDE) click the Personal Application tab and click Terminal.

Step 2 For both the Sun and Microsoft operating systems, at the prompt type:

ping ONS-15454-IP-address

For example:

ping 198.168.10.10

Step 3 If the workstation has connectivity to the ONS 15454, the ping is successful and displays a reply from the IP address. If the workstation does not have connectivity, a "Request timed out" message appears.

Step 4 If the ping is successful, an active TCP/IP connection exists. Restart CTC.

Step 5 If the ping is not successful, and the workstation connects to the ONS 15454 through a LAN, check that the workstation's IP address is on the same subnet as the ONS node.

Step 6 If the ping is not successful and the workstation connects directly to the ONS 15454, check that the link light on the workstation's NIC is illuminated.

1.7.9  The IP Address of the Node is Unknown

Symptom    The IP address of the node is unknown and you are unable to login.

Table 1-8 describes the possible problem and the solution.

Retrieve Unknown Node IP Address

Step 1 Connect your PC directly to the active TCC2 card Ethernet port on the faceplate.

Step 2 Start the Sniffer application on your PC.

Step 3 Perform a hardware reset by pulling and reseating the active TCC2 card.

Step 4 After the TCC2 card completes resetting, it broadcasts its IP address. The Sniffer software on your PC will capture the IP address being broadcast.

1.8  CTC Operation Troubleshooting

This section contains troubleshooting procedures for CTC login or operation problems.

1.8.1  Unable to Launch CTC Help After Removing Netscape

Symptom    After removing Netscape and running CTC using Internet Explorer, you are unable to launch CTC Help and receive an "MSIE is not the default browser" error message.

Table 1-9 describes the possible problem and the solution.

Reset Internet Explorer as the Default Browser for CTC

Step 1 Open the Internet Explorer browser.

Step 2 From the menu bar, click Tools > Internet Options. The Internet Options window appears.

Step 3 In the Internet Options window, click the Programs tab.

Step 4 Click the Internet Explorer should check to see whether it is the default browser check box.

Step 5 Click OK.

Step 6 Exit any and all open and running CTC and Internet Explorer applications.

Step 7 Launch Internet Explorer and open a new CTC session. You should now be able to access the CTC Help.

1.8.2  Unable to Change Node View to Network View

Symptom    When activating a large, multinode BLSR from Software R3.2 to Software R3.3, some of the nodes appear grayed out. Logging into the new CTC, the user is unable to change node view to network view on any and all nodes, from any workstation. This is accompanied by an "Exception occurred during event dispatching: java.lang.OutOfMemoryError" in the java window.

Table 1-10 describes the possible problem and the solution.

Reset the CTC_HEAP Environment Variable for Windows

Step 1 Exit any and all open and running CTC and Netscape applications.

Step 2 From the Windows Desktop, right-click My Computer and choose Properties in the shortcut menu.

Step 3 In the System Properties window, click the Advanced tab.

Step 4 Click Environment Variables to open the Environment Variables window.

Step 5 Click New under the User variables field or the System variables field.

Step 6 Type CTC_HEAP in the Variable Name field.

Step 7 Type 256 in the Variable Value field, and then click OK to create the variable.

Step 8 Click OK in the Environment Variables window to accept the changes.

Step 9 Click OK in the System Properties window to accept the changes.

Restart the browser and CTC software.

Reset the CTC_HEAP Environment Variable for Solaris

Step 1 From the user shell window, kill any CTC applications.

Step 2 Kill any Netscape applications.

Step 3 In the user shell window, set the environment variable to increase the heap size:

% setenv CTC_HEAP 256 

Step 4 Restart the browser and CTC software in the same user shell window.

1.8.3  Browser Stalls When Downloading CTC JAR Files From TCC2

Symptom    The browser stalls or hangs when downloading a CTC JAR file from the TCC2 card.

Table 1-11 describes the possible problem and the solution.

Disable the VirusScan Download Scan

Step 1 From the Windows Start menu, choose Programs > Network Associates > VirusScan Console.

Step 2 Double-click the VShield icon listed in the VirusScan Console dialog box.

Step 3 Click Configure on the lower part of the Task Properties window.

Step 4 Click the Download Scan icon on the left of the System Scan Properties dialog box.

Step 5 Uncheck the Enable Internet download scanning check box.

Step 6 Click Yes when the warning message appears.

Step 7 Click OK in the System Scan Properties dialog box.

Step 8 Click OK in the Task Properties window.

Step 9 Close the McAfee VirusScan window.

1.8.4  CTC Does Not Launch

Symptom    CTC does not launch; usually an error message appears before the login window appears.

Table 1-12 describes the possible problem and the solution.