- Introduction
- cef table consistency-check through clear pxf
- ip cache-invalidate-delay through monitor event-trace cef ipv6 (global)
- show adjacency through show ip cef with source
- show ip mds forwarding through show monitor event-trace merged-list
- show pxf accounting through test cef table consistency
- show adjacency
- show cef
- show cef drop
- show cef events
- show cef features global
- show cef interface
- show cef interface policy-statistics
- show cef linecard
- show cef memory
- show cef not-cef-switched
- show cef state
- show cef subtree context client
- show cef table
- show cef table download priority
- show cef timers
- show cef vrf
- show interface stats
- show interfaces switching
- show ip cache
- show ip cef
- show ip cef adjacency
- show ip cef epoch
- show ip cef events
- show ip cef exact-route
- show ip cef inconsistency
- show ip cef non-recursive
- show ip cef platform
- show ip cef summary
- show ip cef switching statistics
- show ip cef traffic prefix-length
- show ip cef tree
- show ip cef unresolved
- show ip cef vlan
- show ip cef vrf
- show ip cef with epoch
- show ip cef with source
show adjacency
To display information about the Cisco Express Forwarding adjacency table or the hardware Layer 3-switching adjacency table, use the show adjacency command in user EXEC or privileged EXEC mode.
show adjacency [ip-address] [interface-type interface-number | null number | port-channel number | sysclock number | vlan number | ipv6-address | fcpa number | serial number] [connectionid number] [link {ipv4 | ipv6 | mpls}] [detail | encapsulation]
show adjacency summary [interface-type interface-number]
Syntax Description
Command Modes
User EXEC (>)
Privileged EXEC (#)
Command History
Usage Guidelines
The show adjacency command is used to verify that an adjacency exists for a connected device, that the adjacency is valid, and that the MAC header rewrite string is correct.
For line cards, you must specify the line card if_number (interface number). Use the show cef interface command to obtain line card if_numbers.
You can use any combination of the ip-address, interface-type, and other keywords and arguments (in any order) as a filter to display a specific subset of adjacencies.
On Cisco 7600 series routers, hardware Layer 3-switching adjacency statistics are updated every 60 seconds.
Note 
On the Cisco 10000 series routers, Pv6 is supported on Cisco IOS Release 12.2(28)SB or later releases.
The following information may be displayed by the show adjacency commands:
•Protocol
•Interface
•Type of routing protocol that is configured on the interface
•Type of routed protocol traffic using this adjacency
•Next hop address
•Method of adjacency that was learned
•Adjacency source (for example, Address Resolution Protocol (ARP) or ATM Map)
•Encapsulation prepended to packet switched through this adjacency
•Chain of output chain elements applied to packets after an adjacency
•Packet and byte counts
•High availability (HA) epoch and summary event epoch
•MAC address of the adjacent router
•Time left before the adjacency rolls out of the adjacency table. After the adjacency rolls out, a packet must use the same next hop to the destination.
Examples
The following examples show how to display adjacency information:
Cisco 7500 Series Router
Router# show adjacency
Protocol Interface Address
IP FastEthernet2/3 172.20.52.1(3045)
IP FastEthernet2/3 172.20.52.22(11)
The following example shows how to display adjacency information for a specific interface:
Router# show adjacency fastethernet 0/0
Protocol Interface Address
IP FastEthernet0/0 10.4.9.2(5)
IP FastEthernet0/0 10.4.9.3(5)
Cisco 10000 Series Router
Router# show adjacency
Protocol Interface Address
IP FastEthernet2/0/0 172.20.52.1(3045)
IP FastEthernet2/0/0 172.20.52.22(11)
Cisco 7500 and 10000 Series Router
The following example shows how to display detailed adjacency information for adjacent IPv6 routers:
Router# show adjacency detail
Protocol Interface Address
IP Tunnel0 point2point(6)
0 packets, 0 bytes
00000000
CEF expires: 00:02:57
refresh: 00:00:57
Epoch: 0
IPV6 Tunnel0 point2point(6)
0 packets, 0 bytes
00000000
IPv6 CEF never
Epoch: 0
IPV6 Ethernet2/0 FE80::A8BB:CCFF:FE01:9002(3)
0 packets, 0 bytes
AABBCC019002AABBCC012C0286DD
IPv6 ND never
Epoch: 0
IPV6 Ethernet2/0 3FFE:2002::A8BB:CCFF:FE01:9002(5)
0 packets, 0 bytes
AABBCC019002AABBCC012C0286DD
IPv6 ND never
Epoch: 0
Table 3 describes the significant fields shown in the displays.
|
|
|
|---|---|
Protocol |
Type of Internet protocol. |
Interface |
Outgoing interface. |
Address |
Next hop IP address. |
The following example shows how to display a summary of adjacency information:
Router# show adjacency summary
Adjacency table has 7 adjacencies:
each adjacency consumes 368 bytes (4 bytes platform extension)
6 complete adjacencies
1 incomplete adjacency
4 adjacencies of linktype IP
4 complete adjacencies of linktype IP
0 incomplete adjacencies of linktype IP
0 adjacencies with fixups of linktype IP
2 adjacencies with IP redirect of linktype IP
3 adjacencies of linktype IPV6
2 complete adjacencies of linktype IPV6
1 incomplete adjacency of linktype IPV6
Adjacency database high availability:
Database epoch: 8 (7 entries at this epoch)
Adjacency manager summary event processing:
Summary events epoch is 52
Summary events queue contains 0 events (high water mark 113 events)
Summary events queue can contain 49151 events
Adj last sourced field refreshed every 16384 summary events
RP adjacency component enabled
The following examples show how to display protocol detail and timer information:
For a Cisco 7500 Series Router
Router# show adjacency detail
Protocol Interface Address
IP FastEthernet0/0 10.4.9.2(5)
0 packets, 0 bytes
epoch 0
sourced in sev-epoch 2
Encap length 14
00307131ABFC000500509C080800
ARP
IP FastEthernet0/0 10.4.9.3(5)
0 packets, 0 bytes
epoch 0
sourced in sev-epoch 2
Encap length 14
000500506C08000500509C080800
ARP
For a Cisco 7600 Series Router
Router# show adjacency detail
Protocol Interface Address
IP FastEthernet2/3 172.20.52.1(3045)
0 packets, 0 bytes
000000000FF920000380000000000000
00000000000000000000000000000000
00605C865B2800D0BB0F980B0800
ARP 03:58:12
IP FastEthernet2/3 172.20.52.22(11)
0 packets, 0 bytes
000000000FF920000380000000000000
00000000000000000000000000000000
00801C93804000D0BB0F980B0800
ARP 03:58:06
For a Cisco 10000 Series Router
Router# show adjacency detail
Protocol Interface Address
IP FastEthernet2/0/0 10.4.9.2(5)
0 packets, 0 bytes
epoch 0
sourced in sev-epoch 2
Encap length 14
00307131ABFC000500509C080800
ARP
IP FastEthernet2/0/0 10.4.9.3(5)
0 packets, 0 bytes
epoch 0
sourced in sev-epoch 2
Encap length 14
000500506C08000500509C080800
ARP
The following examples show how to display protocol detail and timer adjacency information for IP links for a specific interface:
For a Cisco 7500 Series Router
Router# show adjacency tunnel 1 link detail
Protocol Interface Address
IP Tunnel1 point2point(7)
0 packets, 0 bytes
epoch 1
sourced in sev-epoch 4
empty encap string
P2P-ADJ
Next chain element:
label 16 TAG adj out of Ethernet1/0, addr 10.0.0.0
For a Cisco 7600 Series Router
Router# show adjacency fastethernet 2/3
Protocol Interface Address
IP FastEthernet2/3 172.20.52.1(3045)
IP FastEthernet2/3 172.20.52.22(11)
For a Cisco 10000 Series Router
Router# show adjacency tunnel 1 link detail
Protocol Interface Address
IP Tunnel1 point2point(7)
0 packets, 0 bytes
epoch 1
sourced in sev-epoch 4
empty encap string
P2P-ADJ
Next chain element:
label 16 TAG adj out of FastEthernet0/0, addr 10.0.0.0
Related Commands
show cef
To display information about packets forwarded by Cisco Express Forwarding, use the show cef command in privileged EXEC mode.
show cef {accounting | background [detail] | broker broker-name [detail] | error | fib | hardware vectors | idb | loadinfo | non-ip | nsf | path [list [walk] | sets [detail | id path-set-id | summary] | switching background [detail] | walks [process | queue]}
Syntax Description
Command Modes
Privileged EXEC (#)
Command History
Usage Guidelines
Use this command to display and monitor information about traffic forwarded by Cisco Express Forwarding.
A line card might drop packets because of encapsulation failure, absence of route information, or absence of adjacency information.
A packet is punted (sent to another switch path) because Cisco Express Forwarding may not support a specified encapsulation or feature, the packet may be destined for the router, or the packet may have IP options (such as time stamp and record route). IP options are process switched.
Examples
The following example shows how to display Cisco Express Forwarding accounting information:
Router# show cef accounting
IPv4 accounting state:
Enabled accounting: per-prefix, non-recursive, prefix-length
Non-recursive load interval: 30 (default 30)
Non-recursive update interval: 0 (default 0)
IPv6 accounting state:
Enabled accounting: None
Non-recursive load interval: 30 (default 30)
Non-recursive update interval: 0 (default 0)
Table 4 describes the significant fields shown in the example.
The following example shows how to display Cisco Express Forwarding background information:
Router# show cef background
CEF background process process (pid 77) running
0 events awaiting registration on background process
9 events registered on background process
boolean FIB malloc failed, 0 occurences
boolean FIB assert failed, 0 occurences
boolean FIB hw_api_failure failed, 0 occurences
timer FIB checkers: auto-repair delay, init, !run, 0 occurences
timer FIB checkers: auto-repair delay, init, !run, 0 occurences
timer FIB checkers: IPv4 scan-rib-ios scanner, init, run, 2 occurences
timer FIB checkers: IPv4 scan-ios-rib scanner, init, run, 2 occurences
timer FIB checkers: IPv6 scan-ios-rib scanner, init, run, 2 occurences
timer FIB table: rate monitor, init, run, 0 occurences
Table 5 describes the significant fields shown in the example.
The following example shows how to display information about Cisco Express Forwarding FIB entries:
Router# show cef fib
9 allocated IPv4 entries, 0 failed allocations
1 allocated IPv6 entry, 0 failed allocations
Table 6 describes the significant fields shown in the example.
The following example shows how to display information about Cisco Express Forwarding loadinfo:
Router# show cef loadinfo
0 allocated loadinfos, 0 failed allocations
0 allocated loadinfo hash usage gsbs
0 inplace modifies (enabled)
0 identical modifies
Table 7 describes the significant fields shown in the example.
The following example shows how to display information for Cisco Express Forwarding paths:
Router# show cef path
28 allocated IPv4 paths, 0 failed allocations
4 allocated IPv6 paths, 0 failed allocations
32 Total Paths, 587 Recursive Paths, 0 Unresolved Paths
Table 8 describes the significant fields shown in the example.
The following example shows how to display information about Cisco Express Forwarding background switching processes:
Router# show cef switching background
CEF switching background process (pid 46) running
0 events awaiting registration on background process
1 event registered on background process
boolean OCE unlock queue, 0 occurences
Table 9 describes the significant fields shown in the example.
The following example shows how to display information about Cisco Express Forwarding:
Router# show cef walks
Calling process:
----------------
Number of initial walks:
started
mode / priority low high very high
sync 3 0 0
atomic 0 0 0
finished
mode / priority low high very high
sync 3 0 0
atomic 0 0 0
restarted
mode / priority low high very high
sync 0 0 0
atomic 0 0 0
Number of sub walks:
started
mode / priority low high very high
sync 0 0 0
atomic 0 0 0
finished
mode / priority low high very high
sync 0 0 0
atomic 0 0 0
Table 10 describes the significant fields shown in the example.
Related Commands
show cef drop
Note The show cef drop command is not available in Cisco IOS Releases 12.2(25)S, 12.2(28)SB, 12.2(33)SRA, 12.2(33)SXH, 12.4(20)T and later releases.
To display a list of which packets each line card dropped, use the show cef drop command in user EXEC or privileged EXEC mode.
show cef drop
Syntax Description
This command has no arguments or keywords.
Command Modes
User EXEC (>)
Privileged EXEC (#)
Command History
Usage Guidelines
A line card might drop packets because of encapsulation failure, absence of route information, or absence of adjacency information.
A packet is sent to a different switching path (punted) because Cisco Express Forwarding does not support the encapsulation or feature, the packet is destined for the router, or the packet has IP options, such as time stamp and record route. IP options are process switched.
Note If Cisco Express Forwarding for IPv6 or distributed Cisco Express Forwarding for IPv6 is enabled globally on the router, the show cef drop command displays IPv6 Cisco Express Forwarding counter information and IPv4 Cisco Express Forwarding counter information. If Cisco Express Forwarding for IPv6 or distributed Cisco Express Forwarding for IPv6 is not enabled globally on the router, the command displays only IPv4 Cisco Express Forwarding counter information.
Examples
The following is sample output from the show cef drop command:
Router# show cef drop
CEF Drop Statistics
Slot Encap_fail Unresolved Unsupported No_route No_adj ChksumErr
RP 4 89 0 4 0 0
1 0 0 0 0 0 0
2 0 0 5 0 0 5
IPv6 CEF Drop Statistics
Slot Encap_fail Unresolved Unsupported No_route No_adj
RP 2 33 0 2 0
1 0 0 3 0 0
2 0 0 0 0 0
Table 11 describes the significant fields shown in the display.
Related Commands
|
|
|
|---|---|
show cef interface |
Displays Cisco Express Forwarding-related interface information. |
show ipv6 cef |
Displays entries in the IPv6 FIB. |
show cef events
Note The show cef events command is not available in Cisco IOS Releases 12.2(25)S, 12.2(28)SB, 12.2(33)SRA, 12.2(33)SXH, 12.4(20)T and later releases.
To display a list of events internal to the Cisco Express Forwarding process, use the show cef events command in user EXEC or privileged EXEC mode.
show cef events
Syntax Description
This command has no arguments or keywords.
Command Modes
User EXEC (>)
Privileged EXEC (#)
Command History
Examples
The following is sample output from the show cef events command:
Router# show cef events
CEF events (14/0 recorded/ignored)
Time Event Details
+00:00:00.000 SubSys ipfib init
+00:00:00.000 SubSys ipfib_ios init
+00:00:00.000 SubSys ipfib_util init
+00:00:00.000 SubSys adj_ios init
+00:00:00.000 SubSys ipfib_les init
+00:00:01.272 Flag FIB enabled set to yes
+00:00:01.272 Flag FIB switching enabled set to yes
+00:00:01.272 GState CEF enabled
+00:00:02.872 Process Background created
+00:00:02.872 Flag FIB running set to yes
+00:00:02.872 Process Background event loop enter
+00:00:02.912 Flag FIB switching running set to yes
+00:00:02.920 Process Scanner created
+00:00:02.920 Process Scanner event loop enter
Table 12 describes the significant fields shown in the display.
|
|
|
|---|---|
Time |
Time that the event occurred. |
Event |
Type of event that occurred. |
Details |
Detailed description of the event. |
Related Commands
show cef features global
To display Cisco Express Forwarding features for any interface, use the show cef features global command in privileged EXEC mode.
show cef features global
Syntax Description
This command has no arguments or keywords.
Command Modes
Privileged EXEC (#)
Command History
Usage Guidelines
This command is used to determine if Cisco Express Forwarding is enabled for all interfaces.
Examples
The following is sample output from the show cef features global command:
Router# show cef features global
Global Drop features not attached to a specific interface:
Input FNF
Global Punt features not attached to a specific interface:
Input FNF, SPD Classify
Table 13 describes the significant fields shown in the display.
|
|
|
|---|---|
Input FNF |
Flexible NetFlow (FNF) feature. |
SPD Classify |
Flexible NetFlow (FNF) feature. |
This output shows the global drop feature, Flexible NetFlow (Input FNF), and two global punt features, Input FNF and SPD Classify. SPD Classify is present by default. The punt features are invoked for all punted packets regardless of the interface upon which they are received.
Related Commands
|
|
|
|---|---|
show cef interface |
Displays detailed Cisco Express Forwarding information for all interfaces. |
show cef interface
To display detailed Cisco Express Forwarding information for a specified interface or for all interfaces, use the show cef interface command in user EXEC or privileged EXEC mode.
show cef interface [type number] [statistics | detail | internal | brief | policy-statistics [input | output]]
Syntax Description
Command Modes
User EXEC (>)
Privileged EXEC (#)
Command History
Usage Guidelines
You can use this command to display the detailed Cisco Express Forwarding status for all interfaces.
Values entered for the type and number arguments display Cisco Express Forwarding status information for the specified interface type and number.
The policy-statistics, input, and output keywords are available only on distributed switching platforms.
Examples
The following example shows how to display a summary of Cisco Express Forwarding information for an interface named Ethernet 3/0:
Router# show cef interface ethernet 3/0 brief
Interface IP-Address Status Switching
Ethernet3/0 10.0.212.6 up CEF
Router#
The following is sample output from the show cef interface command for Fast Ethernet interface 1/0/0 with BGP policy accounting configured for input traffic:
Router# show cef interface fastethernet 1/0/0
FastEthernet1/0/0 is up (if_number 6)
Corresponding hwidb fast_if_number 6
Corresponding hwidb firstsw->if_number 6
Internet address is 10.1.1.1/24
ICMP redirects are always sent
Per packet load-sharing is disabled
IP unicast RPF check is disabled
Inbound access list is not set
Outbound access list is not set
IP policy routing is disabled
BGP based policy accounting on input is enabled
BGP based policy accounting on output is disabled
Hardware idb is FastEthernet1/0/0 (6)
Software idb is FastEthernet1/0/0 (6)
Fast switching type 1, interface type 18
IP Distributed CEF switching enabled
IP Feature Fast switching turbo vector
IP Feature CEF switching turbo vector
Input fast flags 0x100, Output fast flags 0x0, Flags 0x0
ifindex 7(7)
Slot 1 Slot unit 0 VC -1
Transmit limit accumulator 0xE8001A82 (0xE8001A82)
IP MTU 1500
The following is sample output from the show cef interface detail command for Ethernet interface 1/0/0:
Router# show cef interface ethernet 1/0/0 detail
FastEthernet1/0/0 is up (if_number 6)
Corresponding hwidb fast_if_number 6
Corresponding hwidb firstsw->if_number 6
Internet address is 10.1.1.1/24
ICMP redirects are always sent
Per packet load-sharing is disabled
IP unicast RPF check is disabled
Inbound access list is not set
Outbound access list is not set
IP policy routing is disabled
BGP based policy accounting on input is enabled
BGP based policy accounting on output is disabled
Hardware idb is FastEthernet1/0/0 (6)
Software idb is FastEthernet1/0/0 (6)
Fast switching type 1, interface type 18
IP Distributed CEF switching enabled
IP Feature Fast switching turbo vector
IP Feature CEF switching turbo vector
Input fast flags 0x100, Output fast flags 0x0, Flags 0x0
ifindex 7(7)
Slot 1 Slot unit 0 VC -1
Transmit limit accumulator 0xE8001A82 (0xE8001A82)
IP MTU 1500
The following is sample output from the show cef interface Null 0 detail command:
Router# show cef interface null 0 detail
Null0 is up (if_number 1)
Corresponding hwidb fast_if_number 1
Corresponding hwidb firstsw->if_number 1
Internet Protocol processing disabled
Interface is marked as nullidb
Packets switched to this interface on linecard are dropped to next slow path
Hardware idb is Null0
Fast switching type 13, interface type 0
IP CEF switching enabled
IP Feature CEF switching turbo vector
Input fast flags 0x0, Output fast flags 0x0
ifindex 0(0)
Slot -1 Slot unit -1 VC -1
Transmit limit accumulator 0x0 (0x0)
IP MTU 1500
The following is sample output for internal Cisco Express Forwarding interface status and configuration for the Ethernet 3/1 interface:
Router# show cef interface ethernet 3/1 internal
Ethernet3/1 is up (if_number 13)
Corresponding hwidb fast_if_number 13
Corresponding hwidb firstsw->if_number 13
Internet address is 10.0.212.6/24
ICMP redirects are always sent
Per packet load-sharing is disabled
IP unicast RPF check is disabled
Inbound access list is not set
Outbound access list is not set
IP policy routing is disabled
BGP based policy accounting on input is disabled
BGP based policy accounting on output is disabled
Hardware idb is Ethernet3/1
Fast switching type 1, interface type 63
IP CEF switching enabled
IP CEF switching turbo vector
IP CEF turbo switching turbo vector
IP prefix lookup IPv4 mtrie 8-8-8-8 optimized
Input fast flags 0x0, Output fast flags 0x0
ifindex 11(11)
Slot 3 Slot unit 0 VC -1
Transmit limit accumulator 0x0 (0x0)
IP MTU 1500
Subblocks:
IPv6: enabled 1 unreachable FALSE redirect TRUE mtu 1500 flags 0x0
link-local address is FE80::20C:CFFF:FEF9:4854
Global unicast address(es):
10:6:6:6:20C:CFFF:FEF9:4854, subnet is 10:6:6:6::/64 [EUI]
IPv4: Internet address is 10.0.212.6/24
Broadcast address 255.255.255.255
Per packet load-sharing is disabled
IP MTU 1500
Table 14 describes the significant fields shown in the displays.
|
|
|
|---|---|
FastEthernet1/0/0 is up |
Indicates type, number, and status of the interface. |
Internet address is |
Internet address of the interface. |
ICMP redirects are always sent |
Indicates how packet forwarding is configured. |
Per packet load-sharing is disabled |
Indicates status of load sharing on the interface. |
IP unicast RPF check is disabled |
Indicates status of IP unicast Reverse Path Forwarding (RPF) check on the interface. |
Inbound access list is not set |
Indicates the number or name of the inbound access list if one is applied to this interface. Also indicates whether the list is set. |
Outbound access list is not set |
Indicates the number or name of the outbound access list if one is applied to this interface. Also indicates whether the list is set. |
IP policy routing is disabled |
Indicates the status of IP policy routing on the interface. |
BGP based policy accounting on input is enabled |
Indicates the status of BGP policy accounting on the input interface. |
BGP based policy accounting on output is disabled |
Indicates the status of BGP policy accounting on the output interface. |
Hardware idb is Ethernet1/0/0 |
Interface type and number configured. |
Fast switching type |
Used for troubleshooting; indicates switching mode in use. |
Interface type |
Indicates interface type. |
IP Distributed CEF switching enabled |
Indicates whether distributed Cisco Express Forwarding is enabled on this interface. |
IP Feature Fast switching turbo vector |
Indicates IP fast switching type configured. |
IP Feature CEF switching turbo vector |
Indicates IP feature Cisco Express Forwarding switching type configured. |
Input fast flags |
Indicates the input status of various switching features: • • • • • • • • • • • • • • • • • • • • • • • |
Output fast flags |
Indicates the output status of various switching features, as follows: • • • • • • • • • • • • • • • • • |
ifindex 7/(7) |
Indicates a Cisco IOS internal index or identifier for this interface. |
Slot 1 Slot unit 0 VC -1 |
The slot number and slot unit. |
Transmit limit accumulator |
Indicates the maximum number of packets allowed in the transmit queue. |
IP MTU |
The MTU size set on the interface. |
1 Cisco applications and services architecture (CASA) 2 Software interface descriptor block (SWIDB) 3 General packet radio system (GPRS) 4 Web cache communication protocol (WCCP) 5 Resource reservation protocol (RSVP) |
The following is sample output from the show cef interface command using the policy-statistics keyword:
Router# show cef interface policy-statistics
POS7/0 is up (if_number 8)
Index Packets Bytes
1 0 0
2 0 0
3 50 5000
4 100 10000
5 100 10000
6 10 1000
7 0 0
8 0 0
The following is sample output from the show cef interface command using the policy-statistics keyword. It shows policy statistics for Ethernet interface 1/0.
Router# show cef interface ethernet 1/0 policy-statistics
Ethernet1/0 is up (if_number 3)
Corresponding hwidb fast_if_number 3
Corresponding hwidb firstsw->if_number 3
Index Packets Bytes
1 0 0
2 0 0
3 0 0
4 0 0
5 0 0
6 0 0
7 0 0
8 0 0
The following is sample output from the show cef interface command using the policy-statistics keyword. It shows policy statistics for Fast Ethernet interface 1/0/0 with the policy accounting based on input traffic.
Router# show cef interface fastethernet 1/0/0 policy-statistics input
FastEthernet1/0/0 is up (if_number 6)
Corresponding hwidb fast_if_number 6
Corresponding hwidb firstsw->if_number 6
BGP based Policy accounting on input is enabled
Index Packets Bytes
1 9999 999900
2 0 0
3 0 0
4 0 0
5 0 0
6 0 0
7 0 0
8 0 0
9 0 0
10 0 0
11 0 0
12 0 0
13 0 0
14 0 0
15 0 0
16 0 0
17 0 0
18 0 0
19 0 0
20 0 0
21 0 0
22 0 0
23 0 0
24 0 0
25 0 0
26 0 0
27 0 0
28 0 0
29 0 0
30 0 0
31 0 0
32 0 0
33 0 0
34 1234 123400
35 0 0
36 0 0
37 0 0
38 0 0
39 0 0
40 0 0
41 0 0
42 0 0
43 0 0
44 0 0
45 1000 100000
46 0 0
47 0 0
48 0 0
49 0 0
50 0 0
51 0 0
52 0 0
53 0 0
54 5123 1198782
The following is sample output from the show cef interface command using the policy-statistics keyword. It shows policy statistics for serial interface 1/1/2 with the policy accounting based on output traffic.
Router# show cef interface serial 1/1/2 policy-statistics output
Serial1/1/2 is up (if_number 9)
Corresponding hwidb fast_if_number 9
Corresponding hwidb firstsw->if_number 9
BGP based Policy accounting on output is enabled
Index Packets Bytes
1 9999 999900
2 0 0
.
.
.
18 0 0
19 0 0
20 0 0
.
.
.
34 1234 123400
35 0 0
.
.
.
44 0 0
45 1000 100000
46 0 0
47 0 0
48 0 0
49 0 0
50 0 0
51 0 0
52 0 0
53 0 0
54 5123 1198782
55 0 0
56 0 0
57 0 0
58 0 0
59 0 0
60 0 0
61 0 0
62 0 0
63 0 0
64 0 0
Table 15 describes the significant fields shown in the display.
Related Commands
show cef interface policy-statistics
To display Cisco Express Forwarding policy statistical information for a specific interface or for all interfaces, use the show cef interface policy-statistics command in user EXEC or privileged EXEC mode.
show cef interface [type number] policy-statistics [input | output]
Syntax Description
Command Default
By default, this command displays the input statistics only.
Command Modes
User EXEC (>)
Privileged EXEC (#)
Command History
Usage Guidelines
This command is available on all software switching platforms, such as the Cisco 7200 series router, and distributed switched platforms, such as the Route Switch Processor (RSP), Gigabit Switch Router (GSR), and the Catalyst 6000 series router.
This command is not supported on Cisco 7600 series routers that are configured with a Supervisor Engine 2.
Two sets of counters are displayed for BGP policy accounting: input counters and output counters. If you enter the show cef interface policy-statistics command without an optional keyword, the command displays only input counters. If you want to display the output counters, you must enter the command with the output keyword. You can also display the input counters by entering the input keyword with the command.
The number of lines in the output of the show cef interface policy-statistics command varies from platform to platform. The software switched platforms support 64 input and 64 output counters and thus 64 lines of output. The Catalyst 6000 family switches and Cisco 7600 series routers support seven input and seven output counters and seven lines of output.
You enable BGP policy accounting on a particular interface when you enter the bgp-policy accounting command in interface configuration mode. To define the conditions for BGP policy accounting, you use the set traffic-index command in route-map configuration mode, the route-map command in global configuration mode, the table-map command in route-map configuration mode, and the match command in route-map configuration mode. The table-map command adds the named route map to the BGP routing table. BGP uses the route map name to set traffic indexes for routes in the IP routing table. The match commands specify the match criteria—the conditions under which policy routing occurs. The set traffic-index command sets the traffic indexes for matching prefixes. The show ip cef detail command displays the traffic index for any particular route.
Examples
The following is sample output from the show cef interface policy-statistics command:
Router# show cef interface policy-statistics
POS7/0 is up (if_number 8)
Index Packets Bytes
1 0 0
2 0 0
3 50 5000
4 100 10000
5 100 10000
6 10 1000
7 0 0
8 0 0
The following is sample output from the show cef interface policy-statistics command showing policy statistics for Ethernet interface 1/0:
Router# show cef interface ethernet 1/0 policy-statistics
Ethernet1/0 is up (if_number 3)
Corresponding hwidb fast_if_number 3
Corresponding hwidb firstsw->if_number 3
Index Packets Bytes
1 0 0
2 0 0
3 0 0
4 0 0
5 0 0
6 0 0
7 0 0
8 0 0
The following is sample output from the show cef interface policy-statistics command showing policy statistics for Fast Ethernet interface 1/0/0 with the policy accounting based on input traffic:
Router# show cef interface fastethernet 1/0/0 policy-statistics input
FastEthernet1/0/0 is up (if_number 6)
Corresponding hwidb fast_if_number 6
Corresponding hwidb firstsw->if_number 6
BGP based Policy accounting on input is enabled
Index Packets Bytes
1 9999 999900
2 0 0
3 0 0
4 0 0
5 0 0
6 0 0
7 0 0
8 0 0
9 0 0
10 0 0
11 0 0
12 0 0
13 0 0
14 0 0
15 0 0
16 0 0
17 0 0
18 0 0
19 0 0
20 0 0
21 0 0
22 0 0
23 0 0
24 0 0
25 0 0
26 0 0
27 0 0
28 0 0
29 0 0
30 0 0
31 0 0
32 0 0
33 0 0
34 1234 123400
35 0 0
36 0 0
37 0 0
38 0 0
39 0 0
40 0 0
41 0 0
42 0 0
43 0 0
44 0 0
45 1000 100000
46 0 0
47 0 0
48 0 0
49 0 0
50 0 0
51 0 0
52 0 0
53 0 0
54 5123 1198782
55 0 0
56 0 0
57 0 0
58 0 0
59 0 0
60 0 0
61 0 0
62 0 0
63 0 0
64 0 0
The following is sample output from the show cef interface policy-statistics command showing policy statistics for serial interface 1/1/2 with the policy accounting based on output traffic:
Router# show cef interface serial 1/1/2 policy-statistics output
Serial1/1/2 is up (if_number 9)
Corresponding hwidb fast_if_number 9
Corresponding hwidb firstsw->if_number 9
BGP based Policy accounting on output is enabled
Index Packets Bytes
1 9999 999900
2 0 0
3 0 0
4 0 0
5 0 0
6 0 0
7 0 0
8 0 0
9 0 0
10 0 0
11 0 0
12 0 0
13 0 0
14 0 0
15 0 0
16 0 0
17 0 0
18 0 0
19 0 0
20 0 0
21 0 0
22 0 0
23 0 0
24 0 0
25 0 0
26 0 0
27 0 0
28 0 0
29 0 0
30 0 0
31 0 0
32 0 0
33 0 0
34 1234 123400
35 0 0
36 0 0
37 0 0
38 0 0
39 0 0
40 0 0
41 0 0
42 0 0
43 0 0
44 0 0
45 1000 100000
46 0 0
47 0 0
48 0 0
49 0 0
50 0 0
51 0 0
52 0 0
53 0 0
54 5123 1198782
55 0 0
56 0 0
57 0 0
58 0 0
59 0 0
60 0 0
61 0 0
62 0 0
63 0 0
64 0 0
Table 16 describes the significant fields shown in these displays.
Related Commands
show cef linecard
To display Cisco Express Forwarding-related information by line card, use the show cef linecard command in user EXEC or privileged EXEC mode.
show cef linecard [slot-number] [detail] [internal]
Syntax Description
Command Modes
User EXEC (>)
Privileged EXEC (#)
Command History
Usage Guidelines
This command is available only on distributed switching platforms.
When you omit the slot-number argument, information about all line cards is displayed. When you omit the slot-number argument and include the detail keyword, detailed information is displayed for all line cards. When you omit the slot-number argument and include the internal keyword, detailed internal information is displayed for all line cards.When you omit all keywords and arguments, the show cef linecard command displays important information about all line cards in table format.
Examples
The following is sample output from the show cef linecard command. The command displays information for all line cards in table format.
Router# show cef linecard
Slot MsgSent XDRSent Window LowQ MedQ HighQ Flags
0 6 95 24 0 0 0 up
1 6 95 24 0 0 0 up
VRF Default-table, version 8, 6 routes
Slot Version CEF-XDR I/Fs State Flags
0 7 4 8 Active up, sync
1 7 4 10 Active up, sync
The following is sample output from the show cef linecard detail command for all line cards:
Router# show cef linecard detail
CEF linecard slot number 0, status up
Sequence number 4, Maximum sequence number expected 28, Seq Epoch 2
Send failed 0, Out Of Sequence 0, drops 0
Linecard CEF reset 0, reloaded 1
95 elements packed in 6 messages(3588 bytes) sent
69 elements cleared
linecard in sync after reloading
0/0/0 xdr elements in LowQ/MediumQ/HighQ
11/9/69 peak elements on LowQ/MediumQ/HighQ
Input packets 0, bytes 0
Output packets 0, bytes 0, drops 0
CEF Table statistics:
Table name Version Prefix-xdr Status
Default-table 7 4 Active, up, sync
CEF linecard slot number 1, status up
Sequence number 4, Maximum sequence number expected 28, Seq Epoch 2
Send failed 0, Out Of Sequence 0, drops 0
Linecard CEF reset 0, reloaded 1
95 elements packed in 6 messages(3588 bytes) sent
69 elements cleared
linecard in sync after reloading
0/0/0 xdr elements in LowQ/MediumQ/HighQ
11/9/69 peak elements on LowQ/MediumQ/HighQ
Input packets 0, bytes 0
Output packets 0, bytes 0, drops 0
CEF Table statistics:
Table name Version Prefix-xdr Status
Default-table 7 4 Active, up, sync
The following is sample output from the show cef linecard internal command for all line cards:
Router# show cef linecard internal
CEF linecard slot number 0, status up
Sequence number 11, Maximum sequence number expected 35
Send failed 0, Out Of Sequence 0
Linecard CEF reset 2, reloaded 2
Total elements queued:
prefix 4
adjacency 4
interface 91
address 2
policy routing 2
hw interface 57
state 6
resequence 2
control 13
table 2
time 4484
flow features deactivate 2
flow cache config 2
flow export config 2
dss 2
isl 2
mpls atm vc remove 2
mpls atm vc set label 2
2
2
3
1
4574 elements packed in 4495 messages(90286 bytes) sent
115 elements cleared
Total elements cleared:
prefix 2
adjacency 1
interface 63
address 1
policy routing 1
hw interface 29
state 2
control 5
table 1
flow features deactivate 1
flow cache config 1
flow export config 1
dss 1
isl 1
mpls atm vc remove 1
mpls atm vc set label 1
1
1
1
linecard disabled - failed a reload
0/0/0 xdr elements in LowQ/MediumQ/HighQ
Input packets 0, bytes 0
Output packets 0, bytes 0, drops 0
CEF Table statistics:
Table name Version Prefix-xdr Status
Default-table 8 4 Active, sync
Table 17 describes the significant fields shown in the displays.
Related Commands
show cef memory
To display information about Cisco Express Forwarding memory usage, use the show cef memory command in privileged EXEC mode.
show cef memory [changes | chunk-utilisation [changes | summary [changes]] | snapshot | summary]
Syntax Description
Command Modes
Privileged EXEC (#)
Command History
Usage Guidelines
Use this command to monitor the memory usage of Cisco Express Forwarding processes. You can display a summary of Cisco Express Forwarding memory usage, display a snapshot of memory use, and display changes to memory use since the last snapshot was taken.
Examples
The following is sample output from the show cef memory command:
Router# show cef memory
Memory in use/allocated Count
------------------------------------------------------------------
ADJ: NULL adjacency : 276/328 ( 84%) [1]
ADJ: adj sev context : 208/312 ( 66%) [2]
ADJ: adjacency : 856/960 ( 89%) [2]
ADJ: request resolve : 2200/2304 ( 95%) [2]
ADJ: sevs : 256/360 ( 71%) [2]
CEF: FIB subtree context : 28/80 ( 35%) [1]
CEF: FIBHWIDB : 19440/20480 ( 94%) [20]
CEF: FIBIDB : 6352/7392 ( 85%) [20]
CEF: FIBSWSB control : 496/600 ( 82%) [2]
CEF: IPv4 ARP throttle : 1028/1080 ( 95%) [1]
CEF: IPv4 not-sw cnt : 76/128 ( 59%) [1]
CEF: IPv4 not-sw si : 76/128 ( 59%) [1]
CEF: OCE get hash callbac : 28/80 ( 35%) [1]
CEF: Table rate Monitor S : 88/192 ( 45%) [2]
CEF: arp throttle chunk : 22096/22200 ( 99%) [2]
CEF: dQ elems : 208/312 ( 66%) [2]
CEF: fib : 1640/1744 ( 94%) [2]
CEF: fib GSB : 2496/2808 ( 88%) [6]
CEF: fib deps : 208/312 ( 66%) [2]
CEF: fib_fib_s : 456/560 ( 81%) [2]
CEF: fib_fib_src_interfac : 208/312 ( 66%) [2]
CEF: fib_fib_src_special_ : 208/312 ( 66%) [2]
CEF: fib_rib_route_update : 4840/4944 ( 97%) [2]
CEF: fibhwidb table : 40004/40056 ( 99%) [1]
CEF: fibidb table : 40004/40056 ( 99%) [1]
CEF: hash table : 262152/262256 ( 99%) [2]
CEF: ipv6 feature error c : 1260/1312 ( 96%) [1]
CEF: ipv6 feature error s : 1260/1312 ( 96%) [1]
CEF: ipv6 not cef switche : 484/536 ( 90%) [1]
CEF: ipv6 not cef switche : 484/536 ( 90%) [1]
CEF: loadinfos : 504/608 ( 82%) [2]
CEF: mpls long path exts : 280/384 ( 72%) [2]
CEF: mpls path exts : 200/304 ( 65%) [2]
CEF: nh entry context : 280/384 ( 72%) [2]
CEF: non_ip entry context : 280/384 ( 72%) [2]
CEF: pathl : 2424/2736 ( 88%) [6]
CEF: pathl ifs : 280/384 ( 72%) [2]
CEF: pathl its : 352/456 ( 77%) [2]
CEF: pathloutputchain : 432/536 ( 80%) [2]
Table 18 describes the significant fields shown in the display.
The following is sample output from the show cef memory summary command:
Router# show cef memory summary
CEF has allocated 502888 bytes of memory (7904 bytes overhead)
This example shows that Cisco Express Forwarding allocated 502888 bytes of memory. The difference between the amount of memory in use and the amount of memory allocated is 7904 bytes.
The following is sample output from the show cef memory snapshot command:
Router# show cef memory snapshot
CEF memory snapshot taken at 00:26:01.116
This example shows when you last took a snapshot of Cisco Express Forwarding memory.
The following is sample output from the show cef memory changes command:
Router# show cef memory changes
No changes in CEF memory allocation in last 00:36:05.064
This examples shows the Cisco Express Forwarding memory changes, if any, that have occurred since the last memory snapshot was taken.
Related Commands
|
|
|
|---|---|
show cef |
Displays information about packets forwarded by Cisco Express Forwarding. |
show cef not-cef-switched
Note The show cef not-cef-switched command is not available in Cisco IOS Releases 12.2(25)S, 12.2(28)SB, 12.2(33)SRA, 12.2(33)SXH, 12.4(20)T and later releases.
To display which packets were sent to a different switching path, use the show cef not-cef-switched command in user EXEC or privileged EXEC mode.
show cef not-cef-switched
Syntax Description
This command has no arguments or keywords.
Command Modes
User EXEC (>)
Privileged EXEC (#)
Command History
Usage Guidelines
If packets are not being cef switched and you want to determine why, enter the show cef not-cef switched command.
Note If Cisco Express Forwarding for IPv6 or distributed Cisco Express Forwarding for IPv6 is enabled globally on the router, the show cef not-cef-switched command displays IPv6 Cisco Express Forwarding counter information and IPv4 Cisco Express Forwarding counter information. If Cisco Express Forwarding for IPv6 or distributed Cisco Express Forwarding for IPv6 is not enabled globally on the router, the command displays only IPv4 Cisco Express Forwarding counter information.
Examples
The following is sample output from the show cef not-cef-switched command:
Router# show cef not-cef-switched
CEF Packets passed on to next switching layer
Slot No_adj No_encap Unsupp'ted Redirect Receive Options Access Frag
RP 0 0 0 0 91584 0 0 0
1 0 0 0 0 0 0 0 0
2 0 0 0 0 0 0 0 0
IPv6 CEF Packets passed on to next switching layer
Slot No_adj No_encap Unsupp'ted Redirect Receive Options Access MTU
RP 0 0 0 0 92784 0 0 0
1 0 0 0 0 0 0 0 0
2 0 0 0 0 0 0 0 0
Table 19 describes the significant fields shown in the display.
Related Commands
show cef state
To display the state of Cisco Express Forwarding on a networking device, use the show cef state command in privileged EXEC mode.
show cef state
Syntax Description
This command has no arguments or keywords.
Command Modes
Privileged EXEC (#)
Command History
Examples
Example for Cisco IOS Releases 12.2(25)S, 12.2(28)SB, 12,2(33)SRA, 12,2(33)SXH, 12.4(20T, and Later Releases
The following example shows the state of Cisco Express Forwarding on the active Route Processor (RP):
Router# show cef state
CEF Status:
RP instance
common CEF enabled
IPv4 CEF Status:
CEF enabled/running
dCEF disabled/not running
CEF switching enabled/running
universal per-destination load sharing algorithm, id A189DD49
IPv6 CEF Status:
CEF enabled/running
dCEF disabled/not running
original per-destination load sharing algorithm, id A189DD49
Table 20 describes the significant fields shown in the display.
Example for Cisco IOS Releases Before Cisco IOS 12.2(25)S
The following example shows the state of Cisco Express Forwarding on the active Route Processor (RP):
Router# show cef state
RRP state:
I am standby RRP: no
RF Peer Presence: yes
RF PeerComm reached: yes
Redundancy mode: SSO(7)
CEF NSF: enabled/running
Table 21 describes the significant fields shown in the display.
The following example shows the state of Cisco Express Forwarding on the standby RP:
Router# show cef state
RRP state:
I am standby RRP: yes
My logical slot: 0
RF Peer Presence: yes
RF PeerComm reached: yes
CEF NSF: running
Related Commands
show cef subtree context client
To display Cisco Express Forwarding prefix subtrees, use the show cef subtree context client command in privileged EXEC mode.
show cef subtree context client {all | ip-session | test}
Syntax Description
Command Modes
Privileged EXEC (#)
Command History
Usage Guidelines
Note This command is for debugging purposes only. Do not use it unless instructed to do so by a Cisco service engineer.
Examples
The following example shows how to display information about all clients that provide subtree context:
Router# show cef subtree context client all
Client: FIB_SC: Test
instances: 0
app space: 0
platform space: 0
Table 22 describes the significant fields shown in the display.
Related Commands
|
|
|
|---|---|
show cef |
Displays information about packets forwarded by Cisco Express Forwarding. |
show cef table
To display the configuration and operational state of the Cisco Express Forwarding Forwarding Information Base (FIB) table, use the show cef table command in privileged EXEC mode.
Cisco IOS 12.2(33)SRB and Later S-Based Releases
show cef table [consistency-check | detail | internal | [ipv4 | ipv6] [vrf {* | Default | vrf-name}] [topology {* | base | topology-name}] [detail | internal]]
Cisco IOS 12.4(20)T and Later T-Based Releases
show cef table [consistency-check | detail | internal | [ipv4 | ipv6] {Default | vrf-name} [detail | internal]]
Syntax Description
Command Modes
Privileged EXEC (#)
Command History
Usage Guidelines
Use this command to display information about the configuration and operational statistics for Cisco Express Forwarding IPv4 FIB and IPv6 FIB.
Cisco IOS 12.4(20)T and Later T-based Releases
When you enter an ipv4 or ipv6 keyword with the show cef table command, you must enter the name of a configured VRF or the Default keyword.
Cisco IOS 12.2(33)SRB and Later S-based Releases
The vrf and topology keywords are optional when you enter the ipv4 or ipv6 keyword with the show cef table command.
Examples
The following is sample output from the show cef table command:
Router# show cef table
Global information:
Output chain build favors:
platform: not configured
CLI: not configured
operational: convergence-speed
Output chain build characteristics:
Inplace modify
operational for: load-sharing
Collapse
operational for: load-sharing
Indirection
operational for: recursive-prefix
MTRIE information:
TAL: node pools:
pool[C/8 bits]: 12 allocated (0 failed), 12480 bytes {1 refcount}
1 active IPv4 table (9 prefixes total) out of a maximum of 10000.
VRF Prefixes Memory Flags
Default 9 13520
1 active IPv6 table (1 prefix total) out of a maximum of 10000.
VRF Prefixes Memory Flags
VRF Prefixes Memory Flags
Default 1 208
Table 23 describes significant fields shown in the display.
The following is sample output from the show cef table internal command:
Router# show cef table internal
Table: IPv4:Default (id 0)
sources: Default table
ref count: 31
flags (0x00): none
smp allowed: yes
default network: none
route count: 9
route count (fwd): 9
route count (non-fwd): 0
Database epoch: 0 (9 entries at this epoch)
Subblocks:
These rates are ndbs/minute.
RIB update rate: 0
RIB update peak rate: 0
Internals:
table: 0x4BFA060
extra: 0x000000
broker record: 0x000000
tal root: 0x4C01988
lookup OCE: 0x4C12B50
Table: IPv6:Default (id 0)
sources: Default table
ref count: 3
flags (0x00): none
smp allowed: no
default network: none
route count: 1
route count (fwd): 1
route count (non-fwd): 0
Database epoch: 0 (1 entry at this epoch)
Subblocks:
These rates are ndbs/minute.
RIB update rate: 0
RIB update peak rate: 0
Internals:
table: 0x4BF9FF0
extra: 0x000000
broker record: 0x000000
tal root: 0x4C96328
lookup OCE: 0x4C12B30
Table 24 describes significant fields shown in the display.
The following is sample output from the show cef table consistency-check command:
Router# show cef table consistency-check
Consistency checker master control: enabled
IPv4:
Table consistency checker state:
scan-rib-ios: disabled
0/0/0/0 queries sent/ignored/checked/iterated
scan-ios-rib: disabled
0/0/0/0 queries sent/ignored/checked/iterated
full-scan-rib-ios: enabled [1000 prefixes checked every 60s]
0/0/0/0 queries sent/ignored/checked/iterated
full-scan-ios-rib: enabled [1000 prefixes checked every 60s]
0/0/0/0 queries sent/ignored/checked/iterated
Checksum data checking disabled
Inconsistency error messages are disabled
Inconsistency auto-repair is enabled (10s delay, 300s holddown)
Inconsistency auto-repair runs: 0
Inconsistency statistics: 0 confirmed, 0/16 recorded
IPv6:
Table consistency checker state:
scan-ios-rib: disabled
0/0/0/0 queries sent/ignored/checked/iterated
full-scan-rib-ios: enabled [1000 prefixes checked every 60s]
0/0/0/0 queries sent/ignored/checked/iterated
full-scan-ios-rib: enabled [1000 prefixes checked every 60s]
0/0/0/0 queries sent/ignored/checked/iterated
Checksum data checking disabled
Inconsistency error messages are disabled
Inconsistency auto-repair is enabled (10s delay, 300s holddown)
Inconsistency auto-repair runs: 0
Inconsistency statistics: 0 confirmed, 0/16 recorded
Table 25 describes significant fields shown in the display.
The following is sample output from the show cef table IPv4 Default command:
Router# show cef table ipv4 Default
Table: IPv4:Default (id 0)
sources: Default table
ref count: 31
flags (0x00): none
smp allowed: yes
default network: none
route count: 9
route count (fwd): 9
route count (non-fwd): 0
Database epoch: 0 (9 entries at this epoch)
Subblocks:
These rates are ndbs/minute.
RIB update rate: 0
RIB update peak rate: 0
For a description of significant fields shown in the display, see Table 24.
The following is sample output from the show cef table IPv6 Default internal command:
Router# show cef table ipv6 Default internal
Table: IPv6:Default (id 0)
sources: Default table
ref count: 3
flags (0x00): none
smp allowed: no
default network: none
route count: 1
route count (fwd): 1
route count (non-fwd): 0
Database epoch: 0 (1 entry at this epoch)
Subblocks:
These rates are ndbs/minute.
RIB update rate: 0
RIB update peak rate: 0
Internals:
table: 0x4BF9FF0
extra: 0x000000
broker record: 0x000000
tal root: 0x4C96328
lookup OCE: 0x4C12B30
For a description of significant fields shown in the display, see Table 24.
Related Commands
show cef table download priority
To display the configured download priority of Cisco Express Forwarding routes, use the show cef table download priority command in privileged EXEC mode.
show cef table download priority
Syntax Description
This command has no arguments or keywords.
Command Modes
Privileged EXEC (#)
Command History
|
|
|
|---|---|
12.2(33)SRE |
This command was introduced. |
Usage Guidelines
Use this command to display the configured priority for Cisco Express Forwarding routes that are downloaded from the Route Processor (RP) to the line cards.
You can change the default priority for a route type with the cef table download configuration command. If you change the default priority for a route type, the show cef table download priority command displays the user-configured priority followed by the default priority in parentheses.
Examples
The following sample output shows the configured download priority of the routes and prefixes from the Cisco Express Forwarding table on the RP to the line cards:
Router# show cef table download priority
Route type priority
Route with recursive dependents 1st
Default route, 0.0.0.0/0 or ::/0 1st
Directly connected route 2nd
Receive route, local address on router 2nd
Route is in a VRF 3rd
Any other route not matched 4th
This example shows that the default download priorities are in effect.
Table 26 describes the significant fields shown in the display.
In the following example, the default priority of a default route and a receive route was changed with the cef table download command:
Router# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)# cef table download default-route priority 2
Router(config)# cef table download receive-route priority 4
Router(config)# exit
The following show cef table download priority command displays the newly configured download priority and the default priority (in parentheses) for the default route and the receive route:
Router# show cef table download priority
Route type priority
Route with recursive dependents 1st
Default route, 0.0.0.0/0 or ::/0 2nd (default 1st)
Directly connected route 2nd
Receive route, local address on router 4th (default 2nd)
Route is in a VRF 3rd
Any other route not matched 4th
See Table 26 for a description of the significant fields shown in the display.
Related Commands
|
|
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|---|---|
cef table download |
Sets download characteristics for prefixes and routes in the Cisco Express Forwarding table. |
show cef timers
To display the current state of the timers internal to the Cisco Express Forwarding process, use the show cef timers command in user EXEC or privileged EXEC mode.
show cef timers
Syntax Description
This command has no arguments or keywords.
Command Modes
User EXEC (>)
Privileged EXEC (#)
Command History
|
|
|
|---|---|
12.3(2)T |
This command was introduced. |
12.2(25)S |
Command output was changed. |
12.4(20)T |
This command was integrated into Cisco IOS Release 12.4(20)T. |
Examples
Example for Cisco IOS Releases 12.2(25)S, 12.2(28)SB, 12,2(33)SRA, 12,2(33)SXH, 12.4(20)T, and Later Releases
The following is sample output from the show cef timer command:
Router# show cef timers
CEF background process
Expiration Type
13.248 (parent)
13.248 FIB checkers: IPv4 scan-rib-ios scanner
13.248 FIB checkers: IPv4 scan-ios-rib scanner
13.248 FIB checkers: IPv6 scan-ios-rib scanner
Platform counter polling is not enabled
IPv4 CEF background process
Expiration Type
0.600 (parent)
0.600 ARP throttle
0.600 adjacency update hwidb
Table 27 describes the significant fields shown in the display.
|
|
|
|---|---|
Experation |
Seconds in which the timers will expire |
Type |
Identification of the counter |
Example for Cisco IOS Releases Before Cisco IOS Release 12.2(25)S
The following is sample output from the show cef timers command:
Router# show cef timers
CEF background process
Expiration Type
0.208 (parent)
0.208 adjacency update hwidb
0.540 slow resolution
1.208 ARP throttle
CEF FIB scanner process
Expiration Type
44.852 (parent)
44.852 checker scan-rib
Table 28 describes the significant fields shown in the display.
|
|
|
|---|---|
Expiration |
Seconds in which the timers will expire |
Type |
Identification of the timer |
Related Commands
|
|
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|---|---|
show cef interface |
Displays Cisco Express Forwarding-related interface information. |
show ipv6 cef |
Displays entries in the IPv6 FIB. |
show cef vrf
To display information about Cisco Express Forwarding Virtual Private Networks (VPN) routing and forwarding (VRF) instances, use the show cef vrf command in privileged EXEC mode.
show cef vrf [ipv4 | ipv6] [Default | vrf-name]
Syntax Description
Command Default
If you do not specify any arguments or keywords, the command displays information about all VRFs in the Cisco Express Forwarding Forwarding Information Base (FIB).
Command Modes
Privileged EXEC (#)
Command History
Usage Guidelines
Use this command to display information about specified VRF instances or all VRF instances in the Cisco Express Forwarding FIB. To display information about all VRF instances in the FIB, omit arguments and keywords.
Examples
The following is sample output from the show cef vrf command:
Router# show cef vrf
AF: IPv4, VRF: Default(0)
Contains 1 table:
IPv4:Default
AF: IPv6, VRF: Default(0)
Contains 1 table:
IPv6:Default
Table 29 describes significant fields shown in the display.
|
|
|
|---|---|
AF: IPv4 |
The address-family type is IPv4. |
VRF: Default (0) |
Identifies the default VRF. |
AF: IPv6 |
The address-family type is IPv6. |
The following is sample output from the show cef vrf ipv4 command:
Router# show cef vrf ipv4
AF: IPv4, VRF: Default(0)
Contains 1 table:
IPv4:Default
The following is sample output from the show cef vrf ipv6 command:
Router# show cef vrf ipv6
AF: IPv6, VRF: Default(0)
Contains 1 table:
IPv6:Default
For a description of significant fields in the displays, see Table 29.
Related Commands
|
|
|
|---|---|
show cef |
Displays information about packets forwarded by Cisco Express Forwarding. |
show interface stats
To display numbers of packets that were process switched, fast switched, and distributed switched, use the show interface stats command in user EXEC or privileged EXEC mode.
show interface type number stats
Syntax Description
type number |
Interface type and number about which to display statistics. |
Command Modes
User EXEC ( >)
Privileged EXEC (#)
Command History
Usage Guidelines
Use this command on the Route Processor (RP).
Note When fast switching is configured on the outbound interface, and RSP optimum, RSP flow, and VIP DFS switching modes are all specified on the incoming interface, the interface on which RSP optimum, RSP flow, and VIP DFS switching modes is not enabled can still show packets switched out via those switching paths when packets are received from other interfaces with RSP optimum, RSP flow, and VIP DES switching modes enabled.
Examples
The following sample output is from Cisco IOS Release 12.3(14)YM2 and shows counters for both Multi-Processor Forwarding (MPF) switched packets on native GigabitEthernet interfaces and for non-MPF FastEthernet interfaces:
Router# show interface stats
GigabitEthernet0/0
Switching path Pkts In Chars In Pkts Out Chars Out
Processor 0 0 225 77625
Route cache 0 0 0 0
Multi-Processor Fwding 950 221250 500 57000
Total 950 221250 725 134625
GigabitEthernet0/1
Switching path Pkts In Chars In Pkts Out Chars Out
Processor 1 60 226 77685
Route cache 0 0 0 0
Multi-Processor Fwding 500 57000 500 57000
Total 501 57060 726 134685
GigabitEthernet0/2
Switching path Pkts In Chars In Pkts Out Chars Out
Processor 1 60 226 77685
Route cache 0 0 0 0
Multi-Processor Fwding 0 0 0 0
Total 1 60 226 77685
FastEthernet1/0
Switching path Pkts In Chars In Pkts Out Chars Out
Processor 34015 5331012 1579 158190
Route cache 0 0 0 0
Total 34015 5331012 1579 158190
The following is sample output from the show interface stats command:
Router# show interface fddi 3/0/0 stats
Fddi3/0/0
Switching path Pkts In Chars In Pkts Out Chars Out
Processor 3459994 1770812197 4141096 1982257456
Route cache 10372326 3693920448 439872 103743545
Distributed cache 19257912 1286172104 86887377 1184358085
Total 33090232 2455937453 91468345 3270359086
Table 30 describes the significant fields in the display.
show interfaces switching
To display the number of packets sent and received on an interface classified by the switching path, use the show interfaces switching command in user EXEC and privileged EXEC mode.
show interfaces [type number] switching
Syntax Description
type number |
Interface type and number about which to display packet switching path information. |
Command Modes
User EXEC (>)
Privileged EXEC (#)
Command History
|
|
|
|---|---|
12.3 |
This command was introduced. |
Usage Guidelines
Use the show interfaces switching command to show which path the router uses and how the traffic is switched. This command is also useful for troubleshooting CPU utilization.
Statistics for packets in, bytes in, packets out, and bytes out are displayed for the available protocols. The statistics are arranged by process, cache misses, fast-path, and autonomous path. All values displayed by the show interfaces switching command are absolute. The clear interface counters command has no effect on these values.
You must enter at least seven characters of the switching keyword (switchi) when you use the show interfaces switching command.
Examples
The following shows sample output from the show interfaces switching command:
Router# show interfaces switching
FastEthernet0/0
Throttle count 0
Drops RP 0 SP 0
SPD Flushes Fast 0 SSE 0
SPD Aggress Fast 0
SPD Priority Inputs 0 Drops 0
Protocol IP
Switching path Pkts In Chars In Pkts Out Chars Out
Process 24 8208 0 0
Cache misses 0 - - -
Fast 0 0 0 0
Auton/SSE 0 0 0 0
Protocol DECnet
Switching path Pkts In Chars In Pkts Out Chars Out
Process 0 0 0 0
Cache misses 0 - - -
Fast 0 0 0 0
Auton/SSE 0 0 0 0
.........
........
Protocol IPv6
Switching path Pkts In Chars In Pkts Out Chars Out
Process 0 0 0 0
Cache misses 0 - - -
Fast 0 0 0 0
Auton/SSE 0 0 0 0
Protocol Other
Switching path Pkts In Chars In Pkts Out Chars Out
Process 2 120 3 180
Cache misses 0 - - -
Fast 0 0 0 0
Auton/SSE 0 0 0 0
NOTE: all counts are cumulative and reset only after a reload.
Interface POS4/0 is disabled
The following shows sample output from the show interfaces switching command for the interface FastEthernet 0/0:
Router> show interfaces FastEthernet 0/0 switching
FastEthernet0/0
Throttle count 0
Drops RP 0 SP 0
SPD Flushes Fast 218 SSE 0
SPD Aggress Fast 0
SPD Priority Inputs 0 Drops 0
Protocol IP
Switching path Pkts In Chars In Pkts Out Chars Out
Process 239 23422 237 23226
Cache misses 0 - - -
Fast 0 0 0 0
Auton/SSE 0 0 0 0
Protocol ARP
Switching path Pkts In Chars In Pkts Out Chars Out
Process 4 240 3 180
Cache misses 0 - - -
Fast 0 0 0 0
Auton/SSE 0 0 0 0
Protocol CDP
Switching path Pkts In Chars In Pkts Out Chars Out
Process 8 2632 15 5477
Cache misses 0 - - -
Fast 0 0 0 0
Auton/SSE 0 0 0 0
NOTE: all counts are cumulative and reset only after a reload.
Table 31 describes the significant fields shown in the display.
Related Commands
|
|
|
|---|---|
show interface stats |
Displays numbers of packets that were process switched, fast switched, and distributed switched. |
show ip cache
To display the routing table cache used to fast switch IP traffic, use the show ip cache command in user EXEC or privileged EXEC mode.
show ip cache [prefix mask] [type number]
Syntax Description
Command Modes
User EXEC (>)
Privileged EXEC (#)
Command History
Usage Guidelines
The show ip cache display shows MAC headers up to 92 bytes.
Examples
The following is sample output from the show ip cache command:
Router# show ip cache
IP routing cache version 4490, 141 entries, 20772 bytes, 0 hash overflows
Minimum invalidation interval 2 seconds, maximum interval 5 seconds,
quiet interval 3 seconds, threshold 0 requests
Invalidation rate 0 in last 7 seconds, 0 in last 3 seconds
Last full cache invalidation occurred 0:06:31 ago
Prefix/Length Age Interface MAC Header
131.108.1.1/32 0:01:09 Ethernet0/0 AA000400013400000C0357430800
131.108.1.7/32 0:04:32 Ethernet0/0 00000C01281200000C0357430800
131.108.1.12/32 0:02:53 Ethernet0/0 00000C029FD000000C0357430800
131.108.2.13/32 0:06:22 Fddi2/0 00000C05A3E000000C035753AAAA0300
00000800
131.108.2.160/32 0:06:12 Fddi2/0 00000C05A3E000000C035753AAAA0300
00000800
131.108.3.0/24 0:00:21 Ethernet1/2 00000C026BC600000C03574D0800
131.108.4.0/24 0:02:00 Ethernet1/2 00000C026BC600000C03574D0800
131.108.5.0/24 0:00:00 Ethernet1/2 00000C04520800000C03574D0800
131.108.10.15/32 0:05:17 Ethernet0/2 00000C025FF500000C0357450800
131.108.11.7/32 0:04:08 Ethernet1/2 00000C010E3A00000C03574D0800
131.108.11.12/32 0:05:10 Ethernet0/0 00000C01281200000C0357430800
131.108.11.57/32 0:06:29 Ethernet0/0 00000C01281200000C0357430800
Table 32 describes the significant fields shown in the display.
The following is sample output from the show ip cache command with a prefix and mask specified:
Router# show ip cache 131.108.5.0 255.255.255.0
IP routing cache version 4490, 119 entries, 17464 bytes, 0 hash overflows
Minimum invalidation interval 2 seconds, maximum interval 5 seconds,
quiet interval 3 seconds, threshold 0 requests
Invalidation rate 0 in last second, 0 in last 3 seconds
Last full cache invalidation occurred 0:11:56 ago
Prefix/Length Age Interface MAC Header
131.108.5.0/24 0:00:34 Ethernet1/2 00000C04520800000C03574D0800
The following is sample output from the show ip cache command with an interface specified:
Router# show ip cache e0/2
IP routing cache version 4490, 141 entries, 20772 bytes, 0 hash overflows
Minimum invalidation interval 2 seconds, maximum interval 5 seconds,
quiet interval 3 seconds, threshold 0 requests
Invalidation rate 0 in last second, 0 in last 3 seconds
Last full cache invalidation occurred 0:06:31 ago
Prefix/Length Age Interface MAC Header
131.108.10.15/32 0:05:17 Ethernet0/2 00000C025FF500000C0357450800
Related Commands
|
|
|
|---|---|
clear ip cache |
Deletes entries in the routing table cache used to fast switch IP traffic. |
show ip cef
To display entries in the Cisco Express Forwarding Forwarding Information Base (FIB) or to display a summary of the FIB, use the show ip cef command in user EXEC or privileged EXEC mode.
Privileged EXEC Mode
show ip cef [[[network [network-mask] | network/mask] [longer-prefixes] | interface-type number] [platform] [detail | internal [checksum]] | [network [network-mask] | network/mask] [dependents | same-routing] | prefix-statistics]
User EXEC Mode
show ip cef [[[network [network-mask] | network/mask] [longer-prefixes] | interface-type number] [platform] [detail] | [network [network-mask] | network/mask] [dependents | same-routing] | prefix-statistics]
Syntax Description
Command Modes
User EXEC (>)
Privileged EXEC (#)
Command History
Usage Guidelines
Use of the show ip cef command without any keywords or arguments shows a brief display of all FIB entries.
The show ip cef detail command shows detailed FIB entry information for all FIB entries.
Examples
The following is sample output from the show ip cef detail command for Ethernet interface 0. It shows all the prefixes resolving through adjacency pointing to next hop Ethernet interface 0/0 and next hop interface IP address 192.0.2.233.
Router# show ip cef Ethernet 0/0 detail
IP Distributed CEF with switching (Table Version 136808)
45800 routes, 8 unresolved routes (0 old, 8 new) 45800 leaves, 2868 nodes, 8444360 bytes, 136808 inserts, 91008 invalidations 1 load sharing elements, 208 bytes, 1 references 1 CEF resets, 1 revisions of existing leaves refcounts: 527343 leaf, 465638 node
172.16.0.0/12, version 7417, cached adjacency 192.0.2.230 0 packets, 0 bytes, Adjacency-prefix
via 192.0.2.231, Ethernet0/0, 0 dependencies
next hop 192.0.2.232, Ethernet0/0
valid cached adjacency
Table 33 describes the significant fields shown in the display.
The following is sample output from the show ip cef detail command for the prefix 192.0.2.1, showing that the BGP policy accounting bucket number 4 (traffic_index 4) is assigned to this prefix:
Router# show ip cef 192.0.2.1 detail
192.168.5.0/24, version 21, cached adjacency to POS7/2
0 packets, 0 bytes, traffic_index 4
via 192.0.2.233, 0 dependencies, recursive
next hop 192.0.2.234, POS7/2 via 172.16.0.0/12
valid cached adjacency
Table 33 describes the significant fields shown in the display.
Related Commands
show ip cef adjacency
To display Cisco Express Forwarding and distributed Cisco Express Forwarding recursive and direct prefixes resolved through an adjacency, use the show ip cef adjacency command in user EXEC or privileged EXEC mode.
Recursive and Direct Prefixes
show ip cef [vrf vrf-name] adjacency interface-type interface-number ip-prefix [checksum | detail | epoch epoch-number | internal | platform | source]
Special Adjacency Types Representing Nonstandard Switching Paths
show ip cef [vrf vrf-name] adjacency {discard | drop | glean | null | punt} [detail] [checksum | detail | epoch epoch-number | internal | platform | source]
Recursive and Direct Prefixes (Cisco 10000 Series Routers)
show ip cef [vrf vrf-name] adjacency interface-type interface-number ip-prefix [detail | internal | platform]
Special Adjacency Types Representing Nonstandard Switching Paths (Cisco 10000 Series Routers)
show ip cef [vrf vrf-name] adjacency {discard | drop | glean | null | punt} [detail] [internal] [platform]
Syntax Description
Command Modes
User EXEC (>)
Privileged EXEC (#)
Command History
Usage Guidelines
An adjacency is a node that can be reached by one Layer 2 hop.
Distributed Cisco Express Forwarding is not supported on Cisco 10000 series routers.
Adjacencies and Dialer Interfaces
By default, an IP adjacency node is installed in the Cisco Express Forwarding table for the aggregate (dialer) interface. When an asynchronous interface of type AUX_LINE is connected to the aggregate (dialer) interface, a punt adjacency node is installed. However, when the asynchronous interface is disconnected from the aggregate (dialer) interface, the IP adjacency node is restored.
Examples
The following is sample output from the show ip cef adjacency command when the glean keyword is specified:
Router# show ip cef adjacency glean
Prefix Next Hop Interface
10.2.61.0/24 attached Ethernet1/0/0
10.17.250.252/32 10.2.61.1 Ethernet1/0/0
The following is sample output from the show ip cef adjacency drop command with the detail keyword specified:
Router# show ip cef adjacency drop detail
IP CEF with switching (Table Version 4), flags=0x0
4 routes, 0 reresolve, 0 unresolved (0 old, 0 new), peak 0
4 leaves, 8 nodes, 8832 bytes, 13 inserts, 9 invalidations
0 load sharing elements, 0 bytes, 0 references
universal per-destination load sharing algorithm, id 00B999CA
3 CEF resets, 0 revisions of existing leaves
Resolution Timer: Exponential (currently 1s, peak 1s)
0 in-place modifications
refcounts: 533 leaf, 536 node
10.0.0.0/4, version 3
0 packets, 0 bytes, Precedence routine (0)
via 0.0.0.0, 0 dependencies
next hop 0.0.0.0
valid drop adjacency
The following sample output shows the direct IP prefix when the next hop Gigabit Ethernet interface 3/0 is specified:
Router# show ip cef adjacency GigabitEthernet 3/0 172.20.26.29
Prefix Next Hop Interface
10.1.1.0/24 10.20.26.29 GigabitEthernet3/0
Cisco 10000 Series Routers Examples Only
The show ip cef adjacency command shows all prefixes resolved through a regular next-hop adjacency or through the usage of a special adjacency type keyword such as discard, drop, glean, null, or punt.
The following is sample output from the show ip cef adjacency command when the glean keyword is specified:
Router# show ip cef adjacency glean
Prefix Next Hop Interface
10.2.61.0/24 attached GigabitEthernet1/0/0
10.17.250.252/32 10.2.61.1 GigabitEthernet1/0/0
The following is sample output from the show ip cef adjacency drop command with the detail keyword specified:
Router# show ip cef adjacency drop detail
IPv4 CEF is enabled for distributed and running
VRF Default:
42 prefixes (42/0 fwd/non-fwd)
Table id 0
Database epoch: 3 (42 entries at this epoch)
10.0.0.0/4, epoch 3
Special source: drop
drop
The following sample output shows the direct IP prefix when the next hop Gigabit Ethernet interface 3/0/0 is specified (before Cisco IOS Release 12.2(25)S):
Router# show ip cef adjacency GigabitEthernet 3/0/0 172.20.26.29
Prefix Next Hop Interface
10.1.1.0/24 10.20.26.29 GigabitEthernet3/0/0
Table 34 describes the significant fields shown in the display.
|
|
|
|
|---|---|---|
Prefix |
Destination IP prefix. |
|
Next Hop |
Next hop IP address. |
|
Interface |
Next hop interface. |
|
For Cisco IOS Releases 12.2(25)S, 12.2(28)SB, 12.2(33)SRA, 12.2(33)SXH, 12.4(20)T, and later releases the information in the output is the same, but the format of the output is changed.
Router# show ip cef adjacency FastEthernet 0/1 172.17.22.1
10.10.1.2/32
nexthop 172.17.22.1 FastEthernet0/1
10.20.12.0/24
nexthop 172.17.22.1 FastEthernet0/1
Table 35 describes the significant fields shown in the display.
|
|
|
|
|---|---|---|
10.10.1.2/32 |
Destination IP prefix. |
|
nexthop 172.17.22.1 |
Next hop IP address. |
|
FastEthernet0/1 |
Next hop interface. |
|
Related Commands
show ip cef epoch
To display the epoch information for all Forwarding Information Base (FIB) tables, use the show ip cef epoch command in user EXEC or privileged EXEC mode
show ip cef epoch
Syntax Description
This command has no arguments or keywords.
Command Modes
User EXEC (>)
Privileged EXEC (#)
Command History
Usage Guidelines
These show commands also display the epoch information for the following:
•show ip cef summary—Displays the table epoch for a specific FIB table.
•show ip cef detail—Displays the epoch value for each entry of a specific FIB table.
•show adjacency summary—Displays the adjacency table epoch.
•show adjacency detail—Displays the epoch value for each entry of the adjacency table.
Examples
Sample Output for Cisco IOS Releases 12.2(25)S, 12.2(28)SB, 12.2(33)SRA, 12.2(33)SXH, 12.4(20)T, and Later Releases
This example shows how to display epoch information. The fields shown in the display are self-explanatory.
Router# show ip cef epoch
VRF: Default
Database epoch: 0 (12 entries at this epoch)
For adjacency table epoch information, see the show adjacency prefix command.
Sample Output for Cisco IOS Releases Before Cisco IOS Release 12.2(25)S
This example shows how to display epoch information. The fields shown in the display are self-explanatory.
Router# show ip cef epoch
CEF epoch information:
Table:Default-table
Table epoch:2 (164 entries at this epoch)
Adjacency table
Table epoch:1 (33 entries at this epoch)
This example shows the output after you clear the epoch table and increment the epoch number. The fields shown in the display are self-explanatory.
Router# show ip cef epoch
CEF epoch information:
Table:Default-table
Table epoch:2 (164 entries at this epoch)
Adjacency table
Table epoch:1 (33 entries at this epoch)
Router# clear ip cef epoch full
Router# show ip cef epoch
CEF epoch information:
Table:Default-table
Table epoch:3 (164 entries at this epoch)
Adjacency table
Table epoch:2 (33 entries at this epoch)
Related Commands
show ip cef events
Note The show ip cef events command is not available in Cisco IOS Releases 12.2(25)S, 12.2(28)SB, 12.2(33)SRA, 12.2(33)SXH, 12.4(20)T and later releases.
To display all recorded Cisco Express Forwarding Forwarding Information Base (FIB) and adjacency events, use the show ip cef events command in user EXEC or privileged EXEC mode.
show ip cef [vrf vrf-name] events [ip-prefix] [new | within seconds] [detail] [summary]
Syntax Description
Command Modes
User EXEC (>)
Privileged EXEC(#)
Command History
Usage Guidelines
This command shows the state of the table event log and must be enabled for events to be recorded.
The ip cef table event-log command controls parameters such as event log size.
Examples
The following is sample output from the show ip cef events command with summary specified:
Router# show ip cef events summary
CEF table events summary:
Storage for 10000 events (320000 bytes), 822/0 events recorded/ignored
Matching all events, traceback depth 16
Last event occurred 00:00:06.516 ago.
The following is sample output from the show ip cef events command displaying events that occurred within 1 second:
Router# show ip cef events within 1
CEF table events (storage for 10000 events, 14 events recorded)
+00:00:00.000:[Default-table] *.*.*.*/* New FIB table [OK]
+00:00:00.000:[Default-table] 10.1.80.194/32 FIB insert in mtrie [OK]
+00:00:00.000:[Default-table] 10.1.80.0/32 FIB insert in mtrie [OK]
+00:00:00.000:[Default-table] 10.1.80.255/32 FIB insert in mtrie [OK]
+00:00:00.004:[Default-table] 10.1.80.0/24 FIB insert in mtrie [OK]
+00:00:00.004:[Default-table] 10.1.80.0/24 NBD up [OK]
+00:00:00.004:[Default-table] 224.0.0.0/8 FIB insert in mtrie [OK]
+00:00:00.012:[Default-table] 10.1.80.0/24 NBD up [Ignr]
+00:00:00.012:[Default-table] 224.0.0.0/8 FIB remove [OK]
+00:00:00.016:[Default-table] 224.0.0.0/8 FIB insert in mtrie [OK]
+00:00:05.012:[Default-table] 224.0.0.0/8 FIB remove [OK]
+00:00:05.012:[Default-table] 224.0.0.0/8 FIB insert in mtrie [OK]
+00:00:28.440:[Default-table] 224.0.0.0/8 FIB remove [OK]
+00:00:28.440:[Default-table] 224.0.0.0/8 FIB insert in mtrie [OK]
First event occurred at 00:00:36.568 (00:04:40.756 ago)
Last event occurred at 00:01:05.008 (00:04:12.316 ago)
Table 36 describes the significant fields shown in the display.
Related Commands
show ip cef exact-route
To display the exact route for a source-destination IP address pair, use the show ip cef exact-route command in user EXEC or privileged EXEC mode.
show ip cef [vrf vrf-name] exact-route source-address [src-port port-number] destination-address [dest-port port-number]
Syntax Description
Command Modes
User EXEC (>)
Privileged EXEC (#)
Command History
Usage Guidelines
When you are load balancing per destination, this command shows the exact next hop that is used for a given IP source-destination pair.
If you configured the ip cef load-sharing algorithm include-ports command and the source, destination, or source destination keywords, you can use the source port number or the destination port number or both port numbers to see the load-balancing decision for a source and destination address. These options are available only if the include-ports algorithm is enabled.
Examples
Sample Output for Cisco IOS Releases 12.2(25)S, 12.2(28)SB, 12.2(33)SRA, 12.2(33)SXH, 12.4(20)T, and Later Releases
The following is sample output from the show ip cef exact-route command:
Router# show ip cef exact-route 172.16.1.3 172.16.1.2
172.16.1.3 -> 172.16.1.2 => IP adj out of FastEthernet0/1, addr 172.17.25.1
Table 37 describes the significant fields shown in the display.
Sample Output for Cisco IOS Releases Before Cisco IOS Release 12.2(25)S
The following is sample output from the show ip cef exact-route command:
Router# show ip cef exact-route 10.1.1.1 172.17.249.252
10.1.1.1 -> 172.17.249.252 :Ethernet2/0/0 (next hop 10.1.104.1)
Table 38 describes the significant fields shown in the display.
Related Commands
|
|
|
|---|---|
ip cef load-sharing algorithm |
Selects a Cisco Express Forwarding load-balancing algorithm. |
show ip cef inconsistency
Note The show ip cef inconsistency command is not available in Cisco IOS Releases 12.2(25)S, 12.2(28)SB, 12.2(33)SRA, 12.2(33)SXH, 12.4(20)T and later releases. This command is replaced by the test cef table consistency command.
To display Cisco Express Forwarding IP prefix inconsistencies, use the show ip cef inconsistency command in user EXEC or privileged EXEC mode.
show ip cef [vrf vrf-name] inconsistency [records [detail]]
Syntax Description
Command Modes
User EXEC (>)
Privileged EXEC (#)
Command History
Usage Guidelines
This command is available only on routers with line cards.
This command displays recorded IP Cisco Express Forwarding inconsistency records found by the lc-detect, scan-rp, scan-rib, and scan-lc detection mechanisms.
You can configure the IP Cisco Express Forwarding prefix consistency-detection mechanisms using the cef table consistency-check command.
Examples
The following is sample output from the show ip cef inconsistency command:
Router# show ip cef inconsistency
Table consistency checkers (settle time 65s)
lc-detect:running
0/0/0 queries sent/ignored/received
scan-lc:running [100 prefixes checked every 60s]
0/0/0 queries sent/ignored/received
scan-rp:running [100 prefixes checked every 60s]
0/0/0 queries sent/ignored/received
scan-rib:running [1000 prefixes checked every 60s]
0/0/0 queries sent/ignored/received
Inconsistencies:0 confirmed, 0/16 recorded
Table 39 describes the significant fields shown in the display.
Related Commands
show ip cef non-recursive
To display nonrecursive route entries in the Forwarding Information Base (FIB), use the show ip cef non-recursive command in user EXEC or privileged EXEC mode.
show ip cef non-recursive [detail | epoch epoch-number | internal | platform | source]
Cisco 10000 Series Routers
show ip cef non-recursive [detail | internal | platform]
Syntax Description
Command Modes
User EXEC (>)
Privileged EXEC (#)
Command History
Usage Guidelines
The show ip cef non-recursive detail command shows detailed FIB entry information for all nonrecursive routes.
Examples
The following is sample output from the show ip cef non-recursive detail command:
Router# show ip cef non-recursive detail
IPv6 CEF is enabled and running
IPv6 CEF default table
8 prefixes
2001:xx::/35
nexthop FE80::ssss:CFF:FE3D:DCC9 Tunnel55
2001:zzz:500::/40
nexthop FE80::nnnn:801A Tunnel32
2001:zzz::/35
nexthop 3FFE:mmm:8023:21::2 Tunnel26
3FFE:yyy:8023:37::1/128 Receive
Receive
3FFE:yyy:8023:37::/64 Attached, Connected
attached to Tunnel37
3FFE:yyy:8023:38::1/128 Receive
Receive
3FFE:yyy:8023:38::/64 Attached, Connected
attached to Tunnel40
3FFE:yyy:8023:39::1/128 Receive
Receive
Cisco 10000 Series Router Example
The following is sample output from the show ip cef non-recursive detail command:
Router# show ip cef non-recursive detail
IPv4 CEF is enabled for distributed and running
VRF Default:
42 prefixes (42/0 fwd/non-fwd)
Table id 0
Database epoch: 3 (42 entries at this epoch)
0.0.0.0/0, epoch 3, flags default route handler
no route
0.0.0.0/32, epoch 3, flags receive
Special source: receive
receive
10.2.2.2/32, epoch 3
local label info: global/24
nexthop 10.1.1.1 GigabitEthernet1/0/0 label 18
10.4.4.4/32, epoch 3
local label info: global/30
nexthop 10.1.1.1 GigabitEthernet1/0/0 label 19
10.5.5.5/32, epoch 3
local label info: global/29
nexthop 10.1.1.1 GigabitEthernet1/0/0
10.6.6.6/32, epoch 3, flags receive
receive
10.1.1.0/24, epoch 3
local label info: global/23
nexthop 10.1.1.1 GigabitEthernet1/0/0 label 17
Table 40 describes the significant fields shown in the displays.
Related Commands
|
|
|
|---|---|
show ip cef |
Displays entries in the FIB. |
show ip cef summary |
Displays a summary of the entries in the FIB. |
show ip cef unresolved |
Displays unresolved entries in the FIB. |
show ip cef platform
To display entries in the Forwarding Information Base (FIB) or to display a summary of the FIB, use the show ip cef platform command in privileged EXEC mode.
show ip cef ip-prefix [mask] platform [checksum | detail | internal checksum]
Syntax Description
Command Modes
Privileged EXEC (#)
Command History
|
|
|
|---|---|
12.2 (28)SB |
The command was introduced. |
Examples
The following example shows FIB entry information for IP address prefix 10.4.4.4:
Router# show ip cef 10.4.4.4 platform
10.4.4.4/32
Fib Entry: 0xD6680610 XCM leaf from 0x50805550(RP) 0xA0805550(FP): load_bal_or_adj[0] 0x0 load_bal_or_adj[1] 0x18 load_bal_or_adj[2] 0x1C leaf points to an adjacency, index 0x607 ip_mask 0x0 as_number 0x0 precedence_num_loadbal_intf 0xF0 qos_group 0x0
Label object OCE Chain: Label(0x12, real) Adjacency
c10k_label_data = 0x450467F8 tag_elt_addr = 0x50003038 ipv6_tag_elt_addr = 0x0 tag_index = 0x607 tt_tag_rew = 0x45046800 Tag Rewrite: vcci = 0x9DA, fib_root = 0x0 mac_rewrite_index = 0x395, flags = 0x9 pktswitched = 0 byteswitched = 0 XCM Tag Rewrite: vcci = 0x9DA, fib_root = 0x0 mac_rewrite_index = 0x395, flags = 0x9 mac_index_extension = 0x0 XCM mac rewrite from index 0x395 mtu from 0x53800E54(RP) 0xA3800E54(FP) frag_flags = 0x0 mtu = 1496 mac length 0x12 encap length 0x16 upd_offset=0x02FF mac string start from bank4 0x32001CA8(RP) 0x82001CA8(FP) mac string end from bank9 0x50801CA8(RP) 0xA0801CA8(FP) Encap String: 0005DC387B180003A011A57881000002884700012000
Related Commands
show ip cef summary
To display a summary of the IP Cisco Express Forwarding table, use the show ip cef summary command in user EXEC or privileged EXEC mode.
show ip cef summary
Syntax Description
This command has no arguments and keywords.
Command Modes
User EXEC (>)
Privileged EXEC (#)
Command History
Examples
Sample Output for Cisco IOS Releases 12.2(25)S, 12.2(28)SB, 12.2(33)SRA, 12.2(33)SXH, 12.4(20)T, and Later Releases
This is sample output for the show ip cef summary command for IPv4 information:
Router# show ip cef summary
IPv4 CEF is enabled and running
VRF Default:
22 prefixes (22/0 fwd/non-fwd)
Table id 0, 1 resets
Database epoch: 0 (22 entries at this epoch)
Table 41 describes the significant fields shown in the displays.
In Cisco IOS 12.2(25)S, IPv4 and IPv6 output was separated. To display Cisco Express Forwarding summary information for IPv6, use the show ipv6 cef summary command, for example:
Router# show ipv6 cef summary
IPv6 CEF is enabled and running
VRF Default:
20 prefixes (20/0 fwd/non-fwd)
Table id 0, 0 resets
Database epoch: 0 (20 entries at this epoch)
Sample Output for Cisco IOS Releases Before Cisco IOS Release 12.2(25)S
This example shows how to display a summary of the IP Cisco Express Forwarding table:
Router# show ip cef summary
IP Distributed CEF with switching (Table Version 25), flags=0x0
21 routes, 0 reresolve, 0 unresolved (0 old, 0 new), peak 1
21 leaves, 16 nodes, 19496 bytes, 36 inserts, 15 invalidations
0 load sharing elements, 0 bytes, 0 references
universal per-destination load sharing algorithm, id 5163EC15
3(0) CEF resets, 0 revisions of existing leaves
Resolution Timer: Exponential (currently 1s, peak 1s)
0 in-place/0 aborted modifications
refcounts: 4377 leaf, 4352 node
Table epoch: 0 (21 entries at this epoch)
Adjacency Table has 9 adjacencies
Table 42 describes the significant fields shown in the display.
Related Commands
|
|
|
|---|---|
show ip cef |
Displays entries in the FIB or displays a summary of the FIB. |
show ipv6 summary |
Displays a summary of the entries in the IPv6 FIB. |
show ip cef switching statistics
To display switching statistics in the Forwarding Information Base (FIB), use the show ip cef switching statistics command in privileged EXEC mode.
show ip cef switching statistics [feature]
Syntax Description
feature |
(Optional) The output is ordered by feature. |
Command Modes
Privileged EXEC (#)
Command History
Usage Guidelines
If the optional feature keyword is not used, all switching statistics are displayed, without regard for feature order.
Examples
The following is sample output from the show ip cef switching statistics command:
Router# show ip cef switching statistics
Reason Drop Punt Punt2Host
RP LES Packet destined for us 0 132248 0
RP LES Multicast 0 2 0
RP LES Link-local 0 33 0
RP LES Total 0 132283 0
Slot 4 Packet destined for us 0 129546 0
Slot 4 Link-local 0 31 0
Slot 4 Total 0 129577 0
All Total 0 261860 0
The following example shows how to display switching statistics for all features in a common format:
Router# show ip cef switching statistics feature
IPv4 CEF input features:
Path Feature Drop Consume Punt Punt2Host New i/f
LES Access List 0 0 1 0 0
RSP Access List 0 0 1 0 0
Slot 0 Access List 10 0 1 0 0
Slot 0 Verify Unicast 9 0 0 0 0
Slot 4 Verify Unicast 5 0 0 0 0
Total 24 0 3 0 0
IPv4 CEF output features:
Path Feature Drop Consume Punt Punt2Host New i/f
Total 0 0 0 0 0
IPv4 CEF post-encap features:
Path Feature Drop Consume Punt Punt2Host New i/f
Total 0 0 0 0 0
Cisco 10000 Series Router Examples
The following is sample output from the show ip cef switching statistics command:
Router# show ip cef switching statistics
Path Reason Drop Punt Punt2Host
RP LES Packet destined for us 0 1115 0
RP LES Total 0 1115 0
RP PAS Packet destined for us 0 385 0
RP PAS TTL expired 0 0 1833
RP PAS Total 0 385 1833
All Total 0 1500 1833
The following example shows how to display switching statistics for all features in a common format:
Router# show ip cef switching statistics feature
IPv4 CEF input features:
Path Feature Drop Consume Punt Punt2Host Gave route
Total 0 0 0 0 0
IPv4 CEF output features:
Path Feature Drop Consume Punt Punt2Host New i/f
Total 0 0 0 0 0
IPv4 CEF post-encap features:
Path Feature Drop Consume Punt Punt2Host New i/f
Total 0 0 0 0 0
Table 43 describes the significant fields shown in the displays.
Related Commands
show ip cef traffic prefix-length
To display Cisco Express Forwarding traffic statistics by prefix size, use the show ip cef traffic prefix-length command in user EXEC or privileged EXEC mode.
show ip cef [vrf vrf-name] traffic prefix-length
Syntax Description
vrf |
(Optional) A Virtual Private Network (VPN) routing and forwarding (VRF) instance. |
vrf-name |
(Optional) Name assigned to the VRF. |
Command Modes
User EXEC (>)
Privileged EXEC (#)
Command History
Usage Guidelines
This command is used to display Cisco Express Forwarding switched traffic statistics by destination prefix length. The ip cef accounting prefix-length command must be enabled for the counters to increment.
Examples
The following is sample output from the show ip cef traffic prefix-length command:
Router# show ip cef traffic prefix-length
IP prefix length switching statistics:
----------------------------------------
Prefix Number of Number of
Length Packets Bytes
----------------------------------------
0 0 0
1 0 0
2 0 0
3 0 0
4 0 0
5 0 0
.
.
.
28 0 0
29 0 0
30 0 0
31 0 0
32 0 0
Table 44 describes the significant fields shown in the display.
Related Commands
|
|
|
|---|---|
ip cef accounting |
Enables network accounting of Cisco Express Forwarding. |
show ip cef tree
To display summary information on the default tree in the Forwarding Information Base (FIB), use the show ip cef tree command in user EXEC or privileged EXEC mode.
Cisco 7500 Series Routers
show ip cef tree [statistics | dependents [prefix-filter]]
Cisco 10000 Series Routers
show ip cef tree [statistics]
Syntax Description
Command Modes
User EXEC (>)
Privileged EXEC (#)
Command History
Usage Guidelines
If none of the optional keywords or argument is used, all summary information on the default tree in the IP FIB is shown.
Examples
The following is sample output from the show ip cef tree command:
Cisco 7500 Series Router Example
Router# show ip cef tree
VRF Default tree information:
RTRIE storing IPv6 addresses
6 entries (6/0 fwd/non-fwd)
Forwarding & Non-forwarding tree:
6 inserts, 0 delete
8 nodes using 288 bytes
Table 45 describes the significant fields shown in the display for a Cisco 7500 series router.
Cisco 10000 Series Router Example
The following is sample output from the show ip cef tree command:
Router# show ip cef tree
VRF Default tree information:
MTRIE/MTRIE storing IPv4 addresses
42 entries (42/0 fwd/non-fwd)
Forwarding tree:
Forwarding lookup routine: IPv4 mtrie generic
82 inserts, 40 deletes
8-4-6-6-4-4 stride pattern
short mask protection enabled for <= 4 bits without process suspension
42 leaves (1176 bytes), 76 nodes (15744 bytes)
18576 total bytes
leaf ops: 82 inserts, 40 deletes
leaf ops with short mask protection: 3 inserts, 1 delete
per-prefix length stats: lookup off, insert off, delete off
refcounts: 2933 leaf, 2848 node
node pools:
pool[C/4 bits]: 46 allocated (0 failed), 5472 bytes
pool[C/6 bits]: 29 allocated (0 failed), 9216 bytes
pool[C/8 bits]: 1 allocated (0 failed), 1056 bytes
Non-Forwarding tree:
122 inserts, 122 deletes
8-4-6-6-4-4 stride pattern
short mask protection enabled for <= 4 bits without process suspension
0 leaves (0 bytes), 1 node (1040 bytes)
2696 total bytes
leaf ops: 122 inserts, 122 deletes
leaf ops with short mask protection: 4 inserts, 4 deletes
per-prefix length stats: lookup off, insert off, delete off
refcounts: 0 leaf, 0 node
node pools:
pool[C/4 bits]: 0 allocated (0 failed), 0 bytes
pool[C/6 bits]: 0 allocated (0 failed), 0 bytes
pool[C/8 bits]: 1 allocated (0 failed), 1040 bytes
Table 46 describes the significant fields shown in the display for a Cisco 10000 series router.
Related Commands
|
|
|
|---|---|
show ip cef |
Displays entries in the FIB. |
show ip cef unresolved
To display unresolved entries in the Forwarding Information Base (FIB), use the show ip cef unresolved command in user EXEC or privileged EXEC mode.
show ip cef unresolved [detail | epoch epoch-number | internal | platform | source]
Cisco 10000 Series Routers
show ip cef unresolved [detail | internal | platform]
Syntax Description
Command Modes
User EXEC (>)
Privileged EXEC (#)
Command History
Usage Guidelines
The show ip cef unresolved detail command displays detailed information for all unresolved FIB entries.
Examples
Sample Output for Cisco IOS Releases 12.2(25)S, 12.2(28)SB, 12.2(33)SRA, 12.2(33)SXH, 12.4(20)T, and Later Releases
The following is sample output for the show ip cef unresolved command:
Router# show ip cef unresolved detail
Prefix Next Hop Interface
Nothing is displayed if no unresolved adjacencies exist. For information about unresolved prefixes for IPv6, use the show ipv6 unresolved command.
Sample Output for Cisco IOS Releases Before Cisco IOS Release 12.2(25)S
The following is sample output from the show ip cef unresolved command:
Router# show ip cef unresolved
IP Distributed CEF with switching (Table Version 136632)
45776 routes, 13 unresolved routes (0 old, 13 new)
45776 leaves, 2868 nodes, 8441480 bytes, 136632 inserts, 90856 invalidations
1 load sharing elements, 208 bytes, 1 references
1 CEF resets, 1 revisions of existing leaves
refcounts: 527292 leaf, 465617 node
10.214.0.0/16, version 136622
0 packets, 0 bytes
via 172.17.233.56, 0 dependencies, recursive
unresolved
10.215.0.0/16, version 136623
0 packets, 0 bytes
via 172.17.233.56, 0 dependencies, recursive
unresolved
10.218.0.0/16, version 136624
0 packets, 0 bytes
Cisco 10000 Series Router Example
The following is sample output from the show ip cef unresolved command:
Router# show ip cef unresolved
10.214.0.0/16, version 136622
0 packets, 0 bytes
via 172.17.233.56, 0 dependencies, recursive
unresolved
10.215.0.0/16, version 136623
0 packets, 0 bytes
via 172.17.233.56, 0 dependencies, recursive
unresolved
10.218.0.0/16, version 136624
0 packets, 0 bytes
Related Commands
show ip cef vlan
To display the information about the IP Cisco Express Forwarding VLAN interface status, the configuration, and the prefixes for a specific interface, use the show ip cef vlan command in user EXEC or privileged EXEC mode.
show ip cef vlan vlan-id [detail]
Syntax Description
vlan-id |
VLAN number; valid values are from 1 to 4094. |
detail |
(Optional) Displays the detailed information about the IP Cisco Express Forwarding VLAN interface. |
Defaults
This command has no default settings.
Command Modes
User EXEC (>)
Privileged EXEC (#)
Command History
Examples
This example shows how to display the prefixes for a specific VLAN. The fields shown in the display are self-explanatory.
Router> show ip cef vlan 1003
Prefix Next Hop Interface
0.0.0.0/0 172.20.52.1 FastEthernet3/3
0.0.0.0/32 receive
10.7.0.0/16 172.20.52.1 FastEthernet3/3
10.16.18.0/23 172.20.52.1 FastEthernet3/3
Router>
This example shows how to display detailed IP Cisco Express Forwarding information for a specific VLAN. The fields shown in the display are self-explanatory.
Router> show ip cef vlan 1003 detail
IP Distributed CEF with switching (Table Version 2364), flags=0x0
1383 routes, 0 reresolve, 0 unresolved (0 old, 0 new)
1383 leaves, 201 nodes, 380532 bytes, 2372 inserts, 989 invalidations
0 load sharing elements, 0 bytes, 0 references
universal per-destination load sharing algorithm, id 9B6C9823
3 CEF resets, 0 revisions of existing leaves
refcounts: 54276 leaf, 51712 node
Adjacency Table has 5 adjacencies
show ip cef vrf
To display the Cisco Express Forwarding forwarding table associated with a Virtual Private Network (VPN) routing/forwarding instance (VRF), use the show ip cef vrf command in privileged EXEC mode.
show ip cef vrf vrf-name [ip-prefix [mask [longer-prefixes]] [detail] [output-modifiers]] [interface interface-number] [adjacency [interface interface-number] [detail] [discard] [drop] [glean] [null] [punt] [output-modifiers]] [detail [output-modifiers]] [non-recursive [detail] [output-modifiers]] [summary [output-modifiers]] [traffic [prefix-length] [output-modifiers]] [unresolved [detail] [output-modifiers]]
Syntax Description
Command Modes
Privileged EXEC (#)
Command History
Usage Guidelines
Used with only the vrf-name argument, the show ip cef vrf command shows a shortened display of the Cisco Express Forwarding table.
Used with the detail keyword, the show ip cef vrf command shows detailed information for all Cisco Express Forwarding table entries.
Examples
This example shows the forwarding table associated with the VRF called vrf1:
Router# show ip cef vrf vrf1
Prefix Next Hop Interface
0.0.0.0/32 receive
10.11.0.0/8 10.50.0.1 Ethernet1/3
10.12.0.0/8 10.52.0.2 POS6/0
10.50.0.0/8 attached Ethernet1/3
10.50.0.0/32 receive
10.50.0.1/32 10.50.0.1 Ethernet1/3
10.50.0.2/32 receive
10.50.255.255/32 receive
10.51.0.0/8 10.52.0.2 POS6/0
10.224.0.0/24 receive
10.255.255.255/32 receive
The following sample output from the show ip cef vrf vrf-name ip-prefix detail command shows the recursive-via-host and recursive-via-connected flags:
Router# show ip cef vrf vpn1 10.51.10.1 detail
10.51.10.1/24, epoch 0, flags rib defined all labels
local label info: other/24
recursive via 10.6.16.6 label 23
nexthop 10.2.3.3 Ethernet1/0 label 17
recursive via 10.1.2.1, repair
attached
Table 47 describes the fields shown in the example.
Related CommandsRelated Commands
|
|
|
show ip route vrf |
Displays the IP routing table associated with a VRF. |
show ip vrf |
Displays VRF interfaces. |
show ip cef with epoch
To display Cisco Express Forwarding Forwarding Information Base (FIB) information filtered for a specific epoch, use the show ip cef with epoch command in privileged EXEC mode.
show ip cef with epoch epoch-number [checksum | detail | internal [checksum] | platform [checksum | detail | internal [checksum]]]
Syntax Description
Command Modes
Privileged EXEC (#)
Command History
Usage Guidelines
Use this command to display information about prefix properties for a specified epoch in the Cisco Express Forwarding FIB. This command is similar to the show ipv6 cef with epoch command, except that it is IPv4 specific. Use the show ip cef epoch command to display the epoch number.
Examples
The following is sample output from the show ip cef with epoch command:
Router# show ip cef with epoch 0
Prefix Next Hop Interface
0.0.0.0/0 no route
0.0.0.0/8 drop
0.0.0.0/32 receive
10.1.1.1/32 receive Loopback0
127.0.0.0/8 drop
224.0.0.0/4 drop
224.0.0.0/24 receive
240.0.0.0/4 drop
255.255.255.255/32 receive
Table 48 describes significant fields shown in the display.
The following is sample output from the show ip cef with epoch detail command:
Router# show ip cef with epoch 15 detail
IPv4 CEF is enabled and running
VRF Default:
9 prefixes (9/0 fwd/non-fwd)
Table id 0
Database epoch: 0 (9 entries at this epoch)
Table 49 describes significant fields shown in the display.
The following is sample output from the show ip cef with epoch checksum command:
Router# show ip cef with epoch 0 checksum
0.0.0.0/0
FIB checksum: 0x353023B8
0.0.0.0/8
FIB checksum: 0x6AAA2DEF
0.0.0.0/32
FIB checksum: 0xC9136D79
10.1.1.1/32
FIB checksum: 0x2DD79A12
127.0.0.0/8
FIB checksum: 0x06E2709F
224.0.0.0/4
FIB checksum: 0xC59D5F03
224.0.0.0/24
FIB checksum: 0x9A64B149
240.0.0.0/4
FIB checksum: 0x891B2D02
255.255.255.255/32
FIB checksum: 0x72C832F4
Table 50 describes significant fields shown in the display.
|
|
|
|---|---|
10.1.1.1/32 |
Prefix in epoch 0. |
FIB checksum: 0x2DD79A12 |
FIB checksum associated with the named prefix. |
The following is sample output from the show ip cef with epoch platform command:
Router# show ip cef with epoch 0 platform
0.0.0.0/0
0.0.0.0/8
0.0.0.0/32 receive
10.1.1.1/32 receive
127.0.0.0/8
224.0.0.0/4 multicast
224.0.0.0/24 multicast
240.0.0.0/4
255.255.255.255/32 receive
Table 51 describes significant fields shown in the display.
Related Commands
show ip cef with source
To display Cisco Express Forwarding Information Base (FIB) information filtered for a specific source, use the show ip cef with source command in privileged EXEC mode.
show ip cef with source source-type [checksum | detail | epoch | internal [checksum] | platform [checksum | detail | internal [checksum]]]
Syntax Description
Command Modes
Privileged EXEC (#)
Command History
Usage Guidelines
Use this command to filter on a specified type of source prefix in the Cisco Express Forwarding FIB.
Examples
The following is sample output from the show ip cef with source rib command:
Router# show ip cef with source rib
Prefix Next Hop Interface
10.1.1.1/32 receive Loopback0
Table 52 describes the significant fields shown in the display.
The following is sample output from the show ip cef with source fib detail command:
Router# show ip cef with source rib detail
IPv4 CEF is enabled and running
VRF Default:
9 prefixes (9/0 fwd/non-fwd)
Table id 0
Database epoch: 0 (9 entries at this epoch)
10.1.1.1/32, epoch 0, flags attached, connected, receive
Interface source: Loopback0
receive for Loopback0
Table 53 describes the significant fields shown in the display.
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