Cisco IOS Dial Technologies Command Reference

11.3(2)AA

This command was introduced.

show dial-shelf

Displays information about the types of cards in nonowned dial shelf slots.

execute-on

Executes commands remotely on a line card.

slot slot-number

Displays information for a specific slot. Slot number (12 or 13) must be occupied by a DSC card.

all

Executes the command on all line cards.

11.3(2)AA

This command was introduced.

12.2(33)SRA

This command was integrated into Cisco IOS Release 12.2(33)SRA.

12.2SX

This command is supported in the Cisco IOS Release 12.2SX train. Support in a specific 12.2SX release of this train depends on your feature set, platform, and platform hardware.

Primary clock

The clock designated as the master timing clock.

Priority

The order in which a clock is designated to back up the primary clock or the next higher priority clock in case of its failure.

Backup Source

The clock signal source, such as a trunk, internal clock, or external generator.

Feature board

An application-specific card in the dial shelf, such as a line card.

Trunk

The trunk line connected to the ISP or central office.

Status

Whether the clock source is capable of providing a synch source signal.

State

Whether the clock source is connected and assigned a priority.

execute-on

Executes commands remotely on a line card.

execute-on

Executes commands remotely on a line card.

slot slot-number

Displays information for a specific slot. Slot number (12 or 13) must be occupied by a DSC card.

all

Executes the command on all line cards.

11.3(2)AA

This command was introduced.

12.2(33)SRA

This command was integrated into Cisco IOS Release 12.2(33)SRA.

12.2SX

This command is supported in the Cisco IOS Release 12.2SX train. Support in a specific 12.2SX release of this train depends on your feature set, platform, and platform hardware.

FastEthernet0 ... is up
... is administratively down

Indicates whether the interface hardware is currently active and if it has been taken down by an administrator.

line protocol is

Indicates whether the software processes that handle the line protocol consider the line usable or if it has been taken down by an administrator.

Hardware

Hardware type (for example, MCI Ethernet, SCI,1 CBus2 Ethernet) and address.

Internet address

Internet address followed by subnet mask.

MTU

Maximum Transmission Unit of the interface.

BW

Bandwidth of the interface in kilobits per second.

DLY

Delay of the interface in microseconds.

rely

Reliability of the interface as a fraction of 255 (255/255 is 100% reliability), calculated as an exponential average over 5 minutes.

load

Load on the interface as a fraction of 255 (255/255 is completely saturated), calculated as an exponential average over 5 minutes.

Encapsulation

Encapsulation method assigned to interface.

ARP type:

Type of Address Resolution Protocol assigned.

loopback

Indicates whether loopback is set or not.

keepalive

Indicates whether keepalives are set or not.

Last input

Number of hours, minutes, and seconds since the last packet was successfully received by an interface. Useful for knowing when a dead interface failed.

output

Number of hours, minutes, and seconds since the last packet was successfully transmitted by the interface. Useful for knowing when a dead interface failed.

output hang

Number of hours, minutes, and seconds (or never) since the interface was last reset because of a transmission that took too long. When the number of hours in any of the “last” fields exceeds
24 hours, the number of days and hours is printed. If that field overflows, asterisks are printed.

Last clearing

Time at which the counters that measure cumulative statistics (such as number of bytes transmitted and received) shown in this report were last reset to zero. Note that variables that might affect routing (for example, load and reliability) are not cleared when the counters are cleared.
*** indicates the elapsed time is too large to be displayed.
0:00:00 indicates the counters were cleared more than 231ms (and less than 232ms) ago.

Output queue, input queue, drops

Number of packets in output and input queues. Each number is followed by a slash, the maximum size of the queue, and the number of packets dropped due to a full queue.

5 minute input rate,
5 minute output rate

Average number of bits and packets transmitted per second in the last 5 minutes. If the interface is not in promiscuous mode, it senses network traffic it sends and receives (rather than all network traffic).

The 5-minute input and output rates should be used only as an approximation of traffic per second during a given 5-minute period. These rates are exponentially weighted averages with a time constant of 5 minutes. A period of four time constants must pass before the average will be within two percent of the instantaneous rate of a uniform stream of traffic over that period.

packets input

Total number of error-free packets received by the system.

bytes

Total number of bytes, including data and MAC encapsulation, in the error free packets received by the system.

no buffer

Number of received packets discarded because there was no buffer space in the main system. Compare with ignored count. Broadcast storms on Ethernets and bursts of noise on serial lines are often responsible for no input buffer events.

Received ... broadcasts

Total number of broadcast or multicast packets received by the interface.

runts

Number of packets that are discarded because they are smaller than the medium’s minimum packet size. For instance, any Ethernet packet that is less than 64 bytes is considered a runt.

giants

Number of packets that are discarded because they exceed the medium’s maximum packet size. For example, any Ethernet packet that is greater than 1518 bytes is considered a giant.

input errors

Includes runts, giants, no buffer, CRC, frame, overrun, and ignored counts. Other input-related errors can also cause the input errors count to be increased, and some datagrams may have more than one error; therefore, this sum may not balance with the sum of enumerated input error counts.

CRC

Cyclic redundancy checksum generated by the originating LAN station or far-end device does not match the checksum calculated from the data received. On a LAN, this usually indicates noise or transmission problems on the LAN interface or the LAN bus itself. A high number of CRCs is usually the result of collisions or a station transmitting bad data.

frame

Number of packets received incorrectly having a CRC error and a noninteger number of octets. On a LAN, this is usually the result of collisions or a malfunctioning Ethernet device.

overrun

Number of times the receiver hardware was unable to hand received data to a hardware buffer because the input rate exceeded the receiver’s ability to handle the data.

ignored

Number of received packets ignored by the interface because the interface hardware ran low on internal buffers. These buffers are different than the system buffers mentioned previously in the buffer description. Broadcast storms and bursts of noise can cause the ignored count to be increased.

abort

Number of packets whose receipt was aborted.

watchdog

Number of times watchdog receive timer expired. It happens when receiving a packet with length greater than 2048.

multicast

Number of multicast packets received.

input packets with dribble condition detected

Dribble bit error indicates that a frame is slightly too long. This frame error counter is incremented just for informational purposes; the router accepts the frame.

packets output

Total number of messages transmitted by the system.

bytes

Total number of bytes, including data and MAC encapsulation, transmitted by the system.

underruns

Number of times that the transmitter has been running faster than the router can handle. This may never be reported on some interfaces.

output errors

Sum of all errors that prevented the final transmission of datagrams out of the interface being examined. Note that this may not balance with the sum of the enumerated output errors, as some datagrams may have more than one error, and others may have errors that do not fall into any of the specifically tabulated categories.

collisions

Number of messages retransmitted due to an Ethernet collision. This is usually the result of an overextended LAN (Ethernet or transceiver cable too long, more than two repeaters between stations, or too many cascaded multiport transceivers). A packet that collides is counted only once in output packets.

interface resets

Number of times an interface has been completely reset. This can happen if packets queued for transmission were not sent within several seconds. On a serial line, this can be caused by a malfunctioning modem that is not supplying the transmit clock signal, or by a cable problem. If the system notices that the carrier detect line of a serial interface is up, but the line protocol is down, it periodically resets the interface in an effort to restart it. Interface resets can also occur when an interface is looped back or shut down.

restarts

Number of times a Type 2 Ethernet controller was restarted because of errors.

babbles

The transmit jabber timer expired.

late collision

Number of late collisions. Late collision happens when a collision occurs after transmitting the preamble.

deferred

Deferred indicates that the chip had to defer while ready to transmit a frame because the carrier was asserted.

lost carrier

Number of times the carrier was lost during transmission.

no carrier

Number of times the carrier was not present during the transmission.

output buffer failures

Number of failed buffers and number of buffers swapped out.

execute-on

Executes commands on a line card.

show dsip

Displays all information about the DSIP.

show version

Displays the configuration of the system hardware, the software version, the names and sources of configuration files, and the boot images.

11.3(2)AA

This command was introduced.

12.2(33)SRA

This command was integrated into Cisco IOS Release 12.2(33)SRA.

12.2SX

This command is supported in the Cisco IOS Release 12.2SX train. Support in a specific 12.2SX release of this train depends on your feature set, platform, and platform hardware.

show dsip clients

Lists the clients registered with DSIP on a system.

show dsip nodes

Displays information about the processors running the DSIP.

show dsip ports

Displays information about local and remote ports.

show dsip queue

Displays the number of messages in the retransmit queue waiting for acknowledgment.

show dsip tracing

Displays DSIP tracing buffer information.

show dsip transport

Displays information about the DSIP transport statistics for the control/data and IPC packets and registered addresses.

show dsip version

Displays DSIP version information.

show version

Displays the configuration of the system hardware, the software version, the names and sources of configuration files, and the boot images.

11.3(2)AA

This command was introduced.

12.2(33)SRA

This command was integrated into Cisco IOS Release 12.2(33)SRA.

12.2SX

This command is supported in the Cisco IOS Release 12.2SX train. Support in a specific 12.2SX release of this train depends on your feature set, platform, and platform hardware.

show dsip nodes

Displays information about the processors running the DSIP.

show dsip ports

Displays information about local and remote ports

show dsip queue

Displays the number of messages in the retransmit queue waiting for acknowledgment.

show dsip tracing

Displays DSIP tracing buffer information.

show dsip transport

Displays information about the DSIP transport statistics for the control/data and IPC packets and registered addresses.

show dsip version

Displays DSIP version information.

11.3(2)AA

This command was introduced.

12.2(33)SRA

This command was integrated into Cisco IOS Release 12.2(33)SRA.

12.2SX

This command is supported in the Cisco IOS Release 12.2SX train. Support in a specific 12.2SX release of this train depends on your feature set, platform, and platform hardware.

ID

DSIP uses Cisco’s IPC (Inter Process Communication) module for nondata related (client control messages etc.) traffic. A seat or node is a computational element, such as a processor, that can be communicated with using IPC services. A seat is where entities and IPC ports reside. The IPC maintains a seat table which contains the seatids of all the seats in the system. Normally this seatid is a function of the slot number.

Type

Local: Local node.

DSIP: Remote DSIP node.

Name

Each seat (node) has a name to easily identify it. There is only one master node and rest are slave nodes. The master node name is “IPC Master” and the slave node name is “Seat:Slave X”, where “X” is the slot number of the node.

Last Sent/Last Heard

Each node maintains two sequence numbers for the last sent and last heard.

Last Sent

Whenever a message is sent out, the “last sent” counter is updated.

Last Heard

Whenever a message is received from a remote node, “last heard” is updated.

show dsip clients

Lists the clients registered with DSIP on a system.

show dsip ports

Displays information about local and remote ports

show dsip queue

Displays the number of messages in the retransmit queue waiting for acknowledgment.

show dsip tracing

Displays DSIP tracing buffer information.

show dsip transport

Displays information about the DSIP transport statistics for the control/data and IPC packets and registered addresses.

show dsip version

Displays DSIP version information.

local

(Optional) Displays information for local ports. The local port is the port created at a seat’s local end.

remote

(Optional) Displays information for remote ports. The remote port is the port residing on a remote seat to which DSIP IPC based connection is open.

slot

(Optional) Specifies a slot number to display information for a specific card on the dial shelf.

11.3(2)AA

This command was introduced.

12.2(33)SRA

This command was integrated into Cisco IOS Release 12.2(33)SRA.

12.2SX

This command is supported in the Cisco IOS Release 12.2SX train. Support in a specific 12.2SX release of this train depends on your feature set, platform, and platform hardware.

Client:Portname

Client name and port name. Port Name. The port names can be determined because they are based on a uniform naming convention that includes the following elements:

• Client name
• Master/slave status
• Slot number

Any client can derive the port name of the other client it wants to talk to once it knows its physical location, using the following formula:

Master/Slave Status Port Name Syntax

Master Client-Name :Master, for example, Console:Master

Slave Client-Name :Slave Slot , for example, Clock:Slave1

Portid

Port ID. The Port ID is a 32-bit identifier comprised of seatid and the port-number . The IPC maintains a seat table which contains the seatids of all the seats in the system. A seat is where clients and ports reside.

The seat ID is a function of the slot number. Port number is the sequential number of the port that is being created on a particular seat, for example: 0,1, 2, etc.

In-Msgs/

The total number of input messages that were received on a particular port.

Out-Msgs

The total number of output messages that were sent to a particular remote port.

Bytes(in/out)

The total number of bytes that were received on a particular port or sent to a remote port. The number of bytes on this port up to the time of the execution of the show command.

Last-i/p

Elapsed time since the last input was received on a local port.

Last-o/p

Elapsed time since the last message was sent to a particular remote port.

Last-act

Elapsed time since the connection to a remote port was opened.

show dsip clients

Lists the clients registered with DSIP on a system.

show dsip nodes

Displays information about the nodes (slots) connected by DSIP on a system.

show dsip queue

Displays the number of messages in the retransmit queue waiting for acknowledgment.

show dsip tracing

Displays DSIP tracing buffer information.

show dsip transport

Displays information about the DSIP transport statistics for the control/data and IPC packets and registered addresses.

show dsip version

Displays DSIP version information.

show version

Displays the configuration of the system hardware, the software version, the names and sources of configuration files, and the boot images.

11.3(2)AA

This command was introduced.

12.2(33)SRA

This command was integrated into Cisco IOS Release 12.2(33)SRA.

12.2SX

This command is supported in the Cisco IOS Release 12.2SX train. Support in a specific 12.2SX release of this train depends on your feature set, platform, and platform hardware.

show dsip clients

Lists the clients registered with DSIP on a system.

show dsip nodes

Displays information about the nodes (slots) connected by DSIP on a system.

show dsip ports

Displays information about local and remote ports.

show dsip tracing

Displays DSIP tracing buffer information.

show dsip transport

Displays information about the DSIP transport statistics for the control/data and IPC packets and registered addresses.

show dsip version

Displays DSIP version information.

show version

Displays the configuration of the system hardware, the software version, the names and sources of configuration files, and the boot images.

control

(Optional) Displays the control tracing buffer.

data

(Optional) Displays the data tracing buffer.

ipc

(Optional) Displays the inter-process communication tracing buffer.

slot

(Optional) Specifies a specific slot number on the dial shelf. Slot number can range from 0 to 14.

entries entry-number

(Optional) Specifies the number of entries to trace. Entries can be 1 to 500.

11.3(2)AA

This command was introduced.

12.2(33)SRA

This command was integrated into Cisco IOS Release 12.2(33)SRA.

12.2SX

This command is supported in the Cisco IOS Release 12.2SX train. Support in a specific 12.2SX release of this train depends on your feature set, platform, and platform hardware.

Dest

The destination MAC address in the DSIP packet.

Src

The source MAC address in the DSIP packet.

Type

There are three types of DSIP packets:

• Control—0x200B
• IPC—0x200C
• Data—0x200D

SrcShelf

The source shelf ID of the DSIP packet.

SrcSlot

The source slot of the DSIP packet.

MsgType

Used to further demultiplex Data packets. Not used for Control and IPC type packets.

MsgLen

Length of the message excluding the DSIP header.

Timestamp

Time elapsed since the packet was received.

clear dsip tracing

Clears DSIP tracing logs.

debug dsip tracing

Enables DSIP trace logging for use with the show dsip tracing commands.

show dsip clients

Lists the clients registered with DSIP on a system.

show dsip nodes

Displays information about the nodes (slots) connected by DSIP on a system.

show dsip ports

Displays information about local and remote ports.

show dsip queue

Displays the number of messages in the retransmit queue waiting for acknowledgment.

show dsip transport

Displays information about the DSIP transport statistics for the control/data and IPC packets and registered addresses.

show dsip version

Displays DSIP version information.

11.3(2)AA

This command was introduced.

12.2(33)SRA

This command was integrated into Cisco IOS Release 12.2(33)SRA.

12.2SX

This command is supported in the Cisco IOS Release 12.2SX train. Support in a specific 12.2SX release of this train depends on your feature set, platform, and platform hardware.

DSIP Transport Statistics:

There are basically three kinds of communication channels between the DSIP modules running on two processors:

1. IPC: DSIP IPC-based reliable/best-effort channel.

2. CNTL: Control packet channel for DSIP modules to communicate between themselves. For example, keepalive messages and initial handshake messages between two DSIP modules are exchanged over this channel.

3. DATA: DSIP fast data packet channel.

input msgs/output msgs

The number of input/output packets on a particular channel.

bytes

The number of input bytes received or sent on a particular channel.

total consumed ipc msgs

The total number of IPC messages consumed so far from the IPC buffer pool.

total freed ipc msgs

The total number of IPC messages returned to the IPC buffer pool so far.

transmit contexts in use

DSIP for each active reliable connection to a remote port keeps a transmit context. This context holds all the important information pertaining to the remote connection, such as, destination portid, port name, number of message and bytes sent to that port etc. This is created when first time a connection is opened to a remote port and is reused for all subsequent communication to that port.

free

Free transmit context is available.

zombie

When DSIP tears down a connection to a remote slot, all the transmit contexts to that slot should return to the free pool. But instead of immediately returning to the free pool, all such contexts first end up on a zombie queue, spend their last few seconds here and then eventually return to the free queue.

invalid

Each transmit context has a magic number. While returning contexts to the free queue, if any transmit context is found to be corrupted, it is marked as invalid and is not returned to the free queue.

ipc getmsg failures

Number of times we failed to get an ipc message.

ipc timeouts

The retry timeouts of the reliable DSIP transport stack.

core getbuffer failures

The number of times DSIP transport layer has failed to allocate buffers for the IPC transport.

aip getbuffer failures

The number of times DSIP transport has failed to allocate buffers while preparing to transmit data received from the clients.

dsip test msgs received/sent

The DSIP test messages received and sent by invoking received/sent the “DSIP Test” client.

DSIP Private Buffer Pool Hits

DSIP by default gets all its buffers from the public buffer pools. If for some reason, it runs out of those buffers, it falls back on a DSIP private pool. This number indicates the number of times DSIP has used this fallback pool.

DSIP Registered Addresses

The MAC addresses of nodes (slots) participating in DSIP communication including the local node. The master sees N slaves whereas slave sees only master (excluding themselves). The information is presented in the following form:

Shelf X : Master | Slot Y : MAC Address : Status= local | remote

show dsip clients

Lists the clients registered with DSIP on a system.

show dsip nodes

Displays information about the nodes (slots) connected by DSIP on a system.

show dsip ports

Displays information about local and remote DSIP ports.

show dsip queue

Displays the number of messages in the retransmit queue waiting for acknowledgment.

show dsip tracing

Displays DSIP tracing buffer information.

show dsip version

Displays DSIP version information.

show version

Displays the configuration of the system hardware, the software version, the names and sources of configuration files, and the boot images.

11.3(2)AA

This command was introduced.

12.2(33)SRA

This command was integrated into Cisco IOS Release 12.2(33)SRA.

12.2SX

This command is supported in the Cisco IOS Release 12.2SX train. Support in a specific 12.2SX release of this train depends on your feature set, platform, and platform hardware.

show dsip clients

Lists the clients registered with DSIP on a system.

show dsip nodes

Displays information about the nodes (slots) connected by DSIP on a system.

show dsip ports

Displays information about local and remote DSIP ports.

show dsip queue

Displays the number of messages in the retransmit queue waiting for acknowledgment.

show dsip tracing

Displays DSIP tracing buffer information.

show dsip transport

Displays information about the DSIP transport statistics for the control/data and IPC packets and registered addresses.

show version

Displays the configuration of the system hardware, the software version, the names and sources of configuration files, and the boot images.

number

Interface number. The value ranges from 0 to 7 if the router has one 8-port BRI NIM or from 0 to 15 if the router has two 8-port BRI NIMs. Interface number values will vary, depending on the hardware platform used. The Cisco 3600 series router, for example, can have up to 48 interfaces.

Specifying just the number will display the D channel for that BRI interface.

slot/port

On the Cisco 7200 series, slot location and port number of the interface. The slash mark is required.

: bchannel

(Optional) Colon (:) followed by a specific B channel number.

first

(Optional) Specifies the first of the B channels; the value can be either 1 or 2.

last

(Optional) Specifies the last of the B channels; the value can only be 2, indicating B channels 1 and 2.

accounting

(Optional) Displays the number of packets of each protocol type that have been sent through the interface.

10.3

This command was introduced.

11.2P

This command was enhanced to support the slot/port syntax for the PA-8B-ST and PA-4B-U port adapters on the Cisco 7200 series.

show interfaces

All interfaces in the router

show interfaces bri 2

Channel D for BRI interface 2

show interfaces bri 2:1

Channel B1 on BRI interface 2

show interfaces bri 2:2

Channel B2 on BRI interface 2

show interfaces bri 4 1

Channel B1 on BRI interface 4

show interfaces bri 4 2

Channel B2 on BRI interface 4

show interfaces bri 4 1 2

Channels B1 and B2 on BRI interface 4

show interfaces bri

Error message: “% Incomplete command.”

BRI... is {up | down | administratively down}

Indicates whether the interface hardware is currently active (whether line signal is present) and whether it has been taken down by an administrator.

line protocol
is {up | down |
administratively down}

Indicates whether the software processes that handle the line protocol consider the line usable (that is, whether keepalives are successful).

Hardware is

Hardware type.

Internet address is

IP address and subnet mask, followed by packet size.

MTU

Maximum transmission unit of the interface.

BW

Bandwidth of the interface in kilobits per second.

DLY

Delay of the interface in microseconds.

rely

Reliability of the interface as a fraction of 255 (255/255 is 100 percent reliability), calculated as an exponential average over 5 minutes.

load

Load on the interface as a fraction of 255 (255/255 is completely saturated), calculated as an exponential average over 5 minutes.

Encapsulation

Encapsulation method assigned to interface.

loopback

Indicates whether loopback is set or not.

keepalive

Indicates whether keepalives are set or not.

Last input

Number of hours, minutes, and seconds since the last packet was successfully received by an interface. Useful for knowing when a nonfunctioning interface failed.

output

Number of hours, minutes, and seconds since the last packet was successfully transmitted by an interface.

output hang

Number of hours, minutes, and seconds (or never) since the interface was last reset because of a transmission that took too long. When the number of hours in any of the “last” fields exceeds 24 hours, the number of days and hours is printed. If that field overflows, asterisks (**) are printed.

Output queue, drops
Input queue, drops

Number of packets in output and input queues. Each number is followed by a slash (/), the maximum size of the queue, and the number of packets dropped due to a full queue.

Five minute input rate
Five minute output rate

Average number of bits and packets transmitted per second in the last 5 minutes.

packets input

Total number of error-free packets received by the system.

bytes

Total number of bytes, including data and media access control (MAC) encapsulation, in the error-free packets received by the system.

no buffer

Number of received packets discarded because there was no buffer space in the main system. Compare with ignored count. Broadcast storms on Ethernets and bursts of noise on serial lines are often responsible for no input buffer events.

broadcasts

Total number of broadcast or multicast packets received by the interface.

runts

Number of packets that are discarded because they are smaller than the medium’s minimum packet size.

giants

Number of packets that are discarded because they exceed the medium’s maximum packet size.

input errors

Total number of no buffer, runts, giants, CRCs, frame, overrun, ignored, and abort counts. Other input-related errors can also increment the count, so this sum may not balance with the other counts.

CRC

Cyclic redundancy checksum generated by the originating station or far-end device does not match the checksum calculated from the data received. On a serial link, CRCs usually indicate noise, gain hits, or other transmission problems on the data link.

frame

Number of packets received incorrectly having a CRC error and a noninteger number of octets. On a serial line, this is usually the result of noise or other transmission problems.

overrun

Number of times the serial receiver hardware was unable to hand received data to a hardware buffer because the input rate exceeded the receiver’s ability to handle the data.

ignored

Number of received packets ignored by the interface because the interface hardware ran low on internal buffers. Broadcast storms and bursts of noise can increase the ignored count.

abort

Illegal sequence of one bits on a serial interface. This usually indicates a clocking problem between the serial interface and the data link equipment.

packets output

Total number of messages sent by the system.

bytes

Total number of bytes, including data and MAC encapsulation, sent by the system.

underruns

Number of times that the transmitter has been running faster than the router can handle. This may never be reported on some interfaces.

output errors

Sum of all errors that prevented the final transmission of datagrams out of the interface being examined. Note that this may not balance with the sum of the enumerated output errors, because some datagrams may have more than one error, and others may have errors that do not fall into any of the specifically tabulated categories.

collisions

Number of collisions. These can occur when you have several devices connected on a multiport line.

interface resets

Number of times an interface has been completely reset. This can happen if packets queued for transmission were not sent within several seconds. On a serial line, this can be caused by a malfunctioning modem that is not supplying the transmit clock signal or by a cable problem. If the system recognizes that the carrier detect line of a serial interface is up, but the line protocol is down, it periodically resets the interface in an effort to restart it. Interface resets can also occur when an interface is looped back or shut down.

restarts

Number of times the controller was restarted because of errors.

carrier transitions

Number of times the carrier detect signal of a serial interface has changed state. Check for modem or line problems if the carrier detect line is changing state often.

slot / port

Backplane slot number and port number on the interface. See your hardware installation manual for the specific slot and port numbers.

number

Network processor module (NPM) number, in the range from 0 to 2.

channel-number

E1 channel number ranging from 1 to 31 or T1 channel number ranging from 1 to 23; 1 to 24 if using NFAS.

11.2F

This command was introduced.

number

Number of the virtual access interface.

configuration

(Optional) Restricts output to configuration information.

11.2F

This command was introduced.

11.3

The configuration keyword was added.

12.3(7)T

The output for this command was modified to indicate if the interface is a member of a multilink PPP bundle.

12.2(33)SB

This command was integrated into Cisco IOS Release 12.2(33)SB. This command was implemented on the Cisco 10000 series router for the PRE3 and PRE4.

12.2(33)SRE

This command was integrated into Cisco IOS Release 12.3(33)SRE.

15.0(1)M

This command was integrated into Cisco IOS Release 15.0(1)M.

Virtual-Access ... is {up | down |
administratively down}

Indicates whether the interface is currently active (whether carrier detect is present), is inactive, or has been taken down by an administrator.

line protocol is {up | down |
administratively down}

Indicates whether the software processes that handle the line protocol consider the line to be usable (that is, whether keepalives are successful).

Hardware is

Type of interface. In this case, the interface is a dynamically created virtual access interface that exists on a vty line.

MTU

Maximum transmission unit for packets on the virtual access interface.

BW

Bandwidth of the virtual access interface, in kbps.

DLY

Delay of the virtual access interface, in microseconds.

reliability

Reliability of the virtual access interface as a fraction of 255 (255/255 is 100 percent reliability), calculated as an exponential average over five minutes.

txload, rxload

Load on the virtual access interface as a fraction of 255 (255/255 is completely saturated), calculated as an exponential average over 5 minutes. The calculation uses the value from the bandwidth interface configuration command.

• txload— Transmit load on the virtual access interface as a value of 1/255 calculated as an exponentioal average over 5 minutes.
• rxload— Receive load on the virtual access interface as a value of 1/255 calculated as an exponentioal average over 5 minutes.

Encapsulation

Encapsulation method assigned to the virtual access interface.

loopback

Test in which signals are sent and then directed back toward the source at some point along the communication path. Used to test network interface usability.

DTR

Data terminal ready. An RS232-C circuit that is activated to let the DCE know when the DTE is ready to send and receive data.

LCP open | closed | req sent

Link Control Protocol (for PPP only; not for Serial Line Internet Protocol (SLIP)). LCP must come to the open state before any useful traffic can cross the link.

Last input

Number of hours, minutes, and seconds since the last packet was successfully received by a virtual access interface. This value indicates when a dead interface failed.

output

Number of hours, minutes, and seconds since the last packet was successfully transmitted by a virtual access interface.

output hang

Number of hours, minutes, and seconds (or never) since the virtual access interface was last reset because of a transmission that took too long. When the number of hours in any of the “last” fields exceeds 24 hours, the number of days and hours is displayed. If that field overflows, asterisks are displayed.

Last clearing

Time at which the counters that measure cumulative statistics (such as number of bytes transmitted and received) were last reset to zero. Note that variables that might affect routing (for example, load and reliability) are not cleared when the counters are cleared.

Asterisks (***) indicate that the elapsed time is too lengthy to be displayed.

Zeros (0:00:00) indicate that the counters were cleared more than 231 milliseconds (ms) and less than 232 ms ago.

Input queue, drops

Number of packets in input queues. Each number is followed by a slash, the maximum size of the queue, and the number of packets dropped because of a full queue.

Queueing strategy

Type of queueing selected to prioritize network traffic. The options are first-come-first-served (FCFS) queueing, first-in-first-out queueing (FIFO), weighted fair queueing, priority queueing, and custom queueing.

Output queue

Packets in output queues. Represented by the maximum size of the queue followed by a slash and the number of packets dropped because of a full queue. For example, if the output queue is 45/15, 45 is the maximum size of the queue and 15 is the number of packets dropped.

5 minute input rate,
5 minute output rate

Average number of bits and packets transmitted per second in the last five minutes.

packets input

Total number of error-free packets received by the system.

bytes

Total number of bytes, including data and MAC encapsulation, in the error-free packets received by the system.

no buffer

Number of received packets discarded because there was no buffer space in the main system. Compare with ignored count. Broadcast storms on Ethernets and bursts of noise on serial lines are often responsible for no-input-buffer events.

broadcasts

Total number of broadcast or multicast packets received by the virtual access interface.

runts

Number of packets that are discarded because they are smaller than the medium’s minimum packet size.

giants

Number of packets that are discarded because they exceed the medium’s maximum packet size.

input errors

Total number of no-buffer, runts, giants, cyclic redundancy checks (CRCs), frame, overrun, ignored, and abort counts. Other input-related errors can also increment the count, so that this sum might not balance with the other counts.

CRC

Counter that reflects when the cyclic redundancy checksum generated by the originating LAN station or far-end device does not match the checksum calculated from data received. On a LAN, this often indicates noise or transmission problems on the LAN interface or the LAN bus. A high number of CRCs is usually the result of collisions or a station transmitting bad data. On a serial link, CRCs often indicate noise, gain hits, or other transmission problems on the data link.

frame

Number of packets received incorrectly having a CRC error and a noninteger number of octets. On a serial line, this is usually the result of noise or other transmission problems.

overrun

Number of times the serial receiver hardware was unable to send received data to a hardware buffer because the input rate exceeded the receiver’s ability to handle the data.

ignored

Number of received packets ignored by the virtual access interface because the interface hardware ran low on internal buffers. These buffers are different from the system buffers mentioned in the description of the no buffer field. Broadcast storms and bursts of noise can cause the “ignored” count to be incremented.

abort

Illegal sequence of one bits on a virtual access interface. This usually indicates a clocking problem between the virtual access interface and the data link equipment.

packets output

Total number of messages transmitted by the system.

bytes

Total number of bytes, including data and MAC encapsulation, transmitted by the system.

underruns

Number of times the far-end transmitter has been running faster than the near-end communication server’s receiver can handle. Underruns may never be reported on some virtual access interfaces.

output errors

Sum of all errors that prevented the final transmission of datagrams out of the virtual access interface being examined. Note that this might not balance with the sum of the enumerated output errors, because some datagrams might have more than one error, and others might have errors that do not fall into any of the tabulated categories.

collisions

Number of packets colliding.

interface resets

Number of times a virtual access interface has been completely reset. A reset can happen if packets queued for transmission were not sent within several seconds. Resetting can be caused by a malfunctioning modem that is not supplying the transmit clock signal or by a cable problem. If the system notices that the carrier detect line of a virtual access interface is up, but the line protocol is down, it periodically resets the interface in an effort to restart it. Interface resets can also occur when a virtual access interface is looped back or shut down.

output buffer failures

Number of outgoing packets dropped from the output buffer.

output buffers swapped out

Number of times the output buffer was swapped out.

carrier transitions

Number of times the carrier detect (CD) signal of a virtual access interface has changed state. Indicates modem or line problems if the CD line changes state often. If data carrier detect (DCD) goes down and comes up, the carrier transition counter increments two times.

clear interface virtual-access

Tears down the virtual access interface and frees the memory for other dial-in uses.

interface virtual-template

Creates a virtual template interface that can be configured and applied dynamically in creating virtual access interfaces.

show pxf cpu queue

Displays PXF queueing statistics.

show users

Displays information about the active lines on the router or information about lawful-intercept users.

number

Number of the virtual access interface.

11.2F

This command was introduced.

Virtual-Access1 is up, line protocol is up

Virtual access interface is up and the upper layers consider the line usable.

Interface is unnumbered. Using the address of Ethernet0 (172.21.114.132)

The ip unnumbered ethernet 0 command was included in the virtual template interface cloned on this interface.

ip unnumbered

Enables IP processing on a serial interface without assigning an explicit IP address to the interface.

poolname

(Optional) Named IP address pool.

group

(Optional) Displays statistics of all pools in the base system group.

group [ group-name ]

(Optional) Displays statistics of all pools in the named group.

11.1

This command was introduced.

12.1(5)DC

This command was enhanced to allow pool group statistics to be displayed.

12.2(13)T

This command was integrated into Cisco IOS Release 12.2(13)T and support was added for the Cisco 6400 node route processor 25v (NRP-25v) Cisco 7400 platforms.

Scope

The type of access.

Begin

The first IP address in the defined range of addresses in this pool.

End

The last IP address in the defined range of addresses in this pool.

Free

The number of addresses available.

InUse

The number of addresses in use.

Pool

Pool and group names and associations, if created.

ip address-pool

Enables an address pooling mechanism used to supply IP addresses to dial asynchronous, synchronous, or ISDN point-to-point interfaces.

ip local pool

Configures a local pool of IP addresses to be used when a remote peer connects to a point-to-point interface.

interface-type

(Optional) Interface type, as listed in Table 12 .

11.1

This command was introduced.

12.2(13)T

The detail argument was removed because the NetWare Link Services Protocol (NLSP) is no longer available in Cisco IOS software.

async

Asynchronous interface.

ethernet

Ethernet IEEE 802.3 interface.

null

Null interface.

serial

WAN serial interface.

ipx compression cipx

Enables compression of IPX packet headers in a PPP session.

show ipx interface

Displays the status of the IPX interfaces configured in the Cisco IOS software and the parameters configured on each interface.

11.1

This command was introduced.

SPX socket:

IPX/SPX socket number.

state

Internal state.

connections:

Number of open connections for this IPX/SPX socket.

SPX Remote: xxxxxxx::yyyy:zzzz

The SPX client address for each SPX connection on this IPX/SPX socket, where xxxx is the client IPX network number, yyyy is the client IPX MAC address, and zzzz is the client SPX connection number.

SPX Local xxxxxxx::yyyy:zzzz

The local SPX address, where xxxx is local IPX network number, yyyy is the local IPX MAC address, and zzzz is the local SPX connection number.

state

Internal state.

flags

A status bit that is used internally to allow and close connections.

Queue counts

inQ, outQ, and unackedQ, as specified in the following three rows.

inq

Number of SPX packets available for the SPX application to read.

outQ

Number of SPX packets that must be sent to the remote client.

unackedQ

Number of SPX packets sent, but no packet was received by the client, so far.

Sequence:

SPX sequence number. Represents the sequence number of next packet of data to be sent by the router.

Ack:

SPX acknowledgment number. Represents the sequence number of the client’s packet that the router has received, so far.

local-alloc:

Maximum packet sequence number that is acceptable from the client. This is a method of imposing flow control on the NASI client.

remote-alloc:

Maximum packet sequence number that the NASI client can accept from the router. This is the NASI client’s way of imposing flow control on the router.

Abort Timer

Time in seconds until this SPX connection is closed and deleted if a watchdog packet is not received.

Verify Watchdog Timer fires in X secs

Indicates the time when you last sent a watchdog packet to the client.

aaa authentication nasi

Specifies AAA authentication for NASI clients connecting through the access server.

ipx nasi-server enable

Enables NASI clients to connect to asynchronous devices attached to a router.

nasi authentication

Enables AAA authentication for NASI clients connecting to a router.

show ipx nasi connections

Displays the status of NASI connections.

active [ detail ] [ dsl | serial-number ]

Displays current call information of all ISDN interfaces or, optionally, a specific digital subscriber line (DSL) (created and configured as a serial interface) or a specific ISDN PRI interface. Values of dsl range from 0 to 15. Information includes the called number, the remote node name, the seconds of connect time, the seconds of connect time remaining, the seconds idle, and Advice of Charge (AOC) charging time units used during the call. The detail keyword provides additional information about active calls.

call rate [ table ]

Displays incoming and outgoing ISDN call switching rate. The optional table keyword presents the data in a tabular format.

answer [ dsl | serial-number ]

Displays whether a called-party or subaddress number has been configured in the incoming setup message for ISDN BRI calls.

history [ detail ] [ dsl | serial-number ]

Displays historic and current call information for all ISDN interfaces or, optionally, a specific DSL (created and configured as a serial interface) or a specific ISDN PRI interface. Values of dsl range from 0 to 15. Information displayed includes the called number, the remote node name, the seconds of connect time, the seconds of connect time remaining, the seconds idle, and AOC charging time units used during the call. The detail keyword provides additional information about historical calls.

memory

Displays ISDN memory pool statistics. This keyword is for use by technical development personnel only.

service [ dsl | serial-number ]

Displays the service status of all ISDN interfaces or, optionally, a specific DSL or a specific ISDN PRI interface (created and configured as a serial interface). Values of dsl range from 0 to 15.

status [ dsl | serial-number ]

Displays the status of all ISDN interfaces or, optionally, a specific DSL or a specific ISDN PRI interface (created and configured as a serial interface). Values of dsl range from 0 to 15.

timers [ dsl | serial-number ]

Displays the values of Layer 2 and Layer 3 timers for all ISDN interfaces or, optionally, a specific DSL or a specific ISDN PRI interface (created and configured as a serial interface). Values of dsl range from 0 to 15.

11.1

This command was introduced.

12.2(8)B

This command was enhanced to display a report about D-channel and Redundant Link Manager (RLM) group status.

12.2(15)T

This command was integrated into Cisco IOS Release 12.2(15)T, and implemented on the Cisco 2420, Cisco 2600 series, Cisco 3600 series, and Cisco 3700 series routers, and Cisco AS5300, Cisco AS5350, Cisco AS5400, and Cisco AS5850 network access server (NAS) platforms.

12.3

This command was enhanced to display the message “%Q.931 is backhauled to BACKHAUL on DSL 0. Layer 3 output may not apply”.

12.4

The show isdn memory output was modified to display information about Call Tables.

12.4

The detail keyword was added.

12.4(24)T

This command was modified in a release earlier than Cisco IOS Release 12.4(24)T. The call rate and table keywords were added.

History Table MaxLength

Maximum number of entries that can be retained in the Call History table.

History Retain Timer

Maximum amount of time any entry can be retained in the Call History table.

Call Type

Type of call: In for incoming, Out for outgoing, or -- when direction of call cannot be determined.

Calling Number

For incoming calls, the number from which the call was received.

Called Number

For outgoing calls, the number to which the call was placed.

Duration Seconds

Number of seconds the call lasted. Indicates whether the call is still active, and how many seconds it has lasted so far.

Calling and Called Phone Number

For incoming calls, the number from which the call was received. For outgoing calls, the number to which the call was placed, or +---Not Available---- when a phone number is not available. The phone number display is limited to 20 digits. (+---Not Available---- is the truncated version of ----Not Available----. The + in the field means more data is available than can be displayed. The low-order data is displayed and the overflowing data is replaced by a +.)

Remote Node Name

Name of the host placing the call or the host called. The name display is limited to ten characters.

Seconds Used

Up to six digits of seconds (up to 999999) showing connect time used, or Failed when the connection attempt fails.

Seconds Left

Up to six digits of seconds (up to 999999) of connect time remaining when the dialer idle-timeout command is configured. The + in the field means more data is available than can be displayed. The low-order data is displayed and the overflowing data is replaced by a +.

Seconds Idle

Six digits of seconds (up to 999999) since the last interesting packet.

Time until Disconnect

Number of configured seconds before the call is disconnected because of the static idle timer for the map class or the interface.

Recorded Charges Units/Currency

For outgoing calls, number of ISDN Advice of Charge (AOC) charging units used or the currency cost of the call. Currency information display is limited to ten characters.

D-DSL

Digital subscriber line (DSL) number that received or sent the setup message.

DSL

DSL number on which the call completed.

Int-id

Non-Facility Associated Signalling (NFAS) interface number on which the call was completed.

B-chan

B-channel on the DSL used for the call.

Callid

Call-id value for the call.

Conn

Current connected state.

Disc Updated

Current state of the Disconnect updated indicator.

Call Type

Generic call type (for example, DATA, VOICE, or V110).

BlockType

The type of block for this line of information.

in use

The number of BlockType blocks that are current.

limit

The maximum number of BlockType blocks that can be allocated. A dash (-) indicates no limit.

max used

The maximum number of BlockType blocks that are allocated at one time.

mail descriptors

Intertask dispatch queue elements.

exec timer blocks

Intertask delay timer structures.

Modem_msg

Memory allocated to modem messages.

LIF timers

Layer-3 timer blocks (call related).

L2IF timers

Layer-2 timer blocks (per message).

PRIM_BTYPE

Primitive block–ISDN internal (layer to layer) communication structure.

PKT_BTYPE

Packet block: ISDN internal (layer to layer) communication data structure.

HEADER_BTYPE

Header block: ISDN internal (layer to layer) communication structure.

SML_INFO_BTYPE

Small buffer: ISDN message block (up to 28 bytes).

LRG_INFO_BTYPE

Large buffer: ISDN message block (up to 1024 bytes).

PKG_BTYPE

Package block: ISDN internal (layer to layer) communication structure.

Router_msg

Queue of messages from another task in a router for ISDN.

X25_msg

Queue of messages for the X.25 internal interface for ISDN.

Tdial_msg

Queue of messages for Thunder dial/Thunder voice interface.

Socket_msg

Queue of messages used for socket interface.

Call Tables

Call redial block: ISDN redial structure.

CCBs

Call Control Blocks (CCB). Structures used by the Call Control layer.

DLCBs

Data Link Control Block (DLCB). Structures used by the Data Link layer (Q.921).

NLCBs

Network Layer Control Block (NLCB). Structures used by the Network layer (Q.931).

ISDN Se1/0:23
ISDN Dc0 SC
Channel [1-31]

ISDN interface type followed by the channel range. A range from 1 to 31 is a standard format for both T1 and E1 outputs, but the state value shown identifies whether the channel is used.

Configured Isdn Interface (dsl) 0

DSL value is 0.

Channel State (0=Idle 1=Propose 2=Busy 3=Reserved 4=Restart 5=Maint_Pend)

Current state of each channel. Channels 24 through 31 are marked as reserved when the output is from T1.

Service State (0=Inservice 1=Maint 2=Outofservice)

Service state assigned to each channel. Channel 24 is marked as out of service.3

ISDN Dchannel0 interface rlm-group = 1

Status of D-channel interface and RLM group for RLM configurations and SS7 applications in integrated SLT configurations.

Transport Link Status

Displays ACTIVE or INACTIVE.

ACTIVE, DEACTIVATED, ACTIVATING

Status of ISDN Layer 1.

TEI = n , State = MULTIPLE_FRAME_ESTABLISHED

Status of ISDN Layer 2. Terminal endpoint identifier (TEI) number and multiframe structure state.

Note The value (n) of the TEI will always be 0 for a D-channel interface.

TEI 65, ces = 1, state = 5(init)

Terminal endpoint identifier number and state.

spid1 configured, no LDN, spid1 sent, spid1 valid

Service profile identifier (SPID) configuration information. For example, local directory number is defined.

Note There is no SPID report for a D-channel interface.

Endpoint ID Info: epsf = 0, usid = 3, tid = 7F

Endpoint identifier information.

1 Active Layer 3 Call(s)

Number of active calls.

Activated dsl 0 CCBs =

Number of the DSL activated. Number of call control blocks in use.

CCB:callid=8003, callref=0, sapi=0, ces=1, B-chan=1

Information about the active call.

Number of active calls =

Number of active calls.

Number of available B-channels =