show cef linecard

To display CEF-related interface information by line card, use the show cef linecard EXEC command.

show cef linecard [slot-number] [detail]

Syntax Description
slot-number (Optional) Slot number containing the line card about which to display CEF-related information. When you omit this argument, information about all line cards is displayed.
detail (Optional) Displays detailed CEF information for the specified line card.

Command Mode

EXEC

Usage Guidelines

This command first appeared to support the Cisco 12012 GSR in Cisco IOS Release 11.2 GS, and first appeared with multiple platform support in Cisco IOS Release 11.1 CC.

This command is available only on routers that have RP cards.

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 linecards. When you omit all keywords and arguments, the show cef linecard command displays important information about all line cards in table format.

Sample Displays

The following is sample output from the show cef linecard command. The command displays information for the line cards.


Router# show cef linecard

CEF table version 115705, 45877 routes
Slot CEF-ver MsgSent XdrSent Seq MaxSeq LowQ HighQ Flags
1        238     668    9641 616    616    0     0 up, sync
2        238     683   10782 619    629    0     0 up, sync

Table 6-5 describes the fields shown in the output from the show cef linecard command.

Table 6-5. show cef linecard Field Descriptions
Field Description
CEF table version The FIB table version.
XdrSent IPC information elements (xdrs) packed into IPC messages sent from the RP to the line card.
MsgSent Number of IPC messages sent.
Seq Sequence number for the line card.
MaxSeq Maximum sequence expected by the line card.
LowQ/HighQ Number of xdr elements in LowQ and HighQ.
Flags Indicates the status of the line card. Possible states are

  • up—Line card is up.

  • sync—Line card is in sync with main FIB.

  • repopulate—Repopulate FIB on line card.

  • reset—Line card FIB is reset.

  • reloading—Line card FIB is currently being reloaded.

  • disabled—Line card is disabled.


The following is sample output from the show cef linecard detail command for the line card in slot number 2:


Router# show cef linecard 2 detail

CEF line card slot number 2, status up, sync, disabled
line card CEF version number 238
Sequence number 616, Maximum sequence number expected 616
Send failed 0, Out Of Sequence 0
line card CEF reset 2, reloaded 2
92299/15/91 prefix/adjacency/interface elements queued
49641 elements packed in 668 messages(1341286 bytes) sent
0/0 xdr elements in LowQ/HighQ
Input packets 0, bytes 0<--- line card stats
Output packets 0, bytes 0, drops 0

Related Commands

You can search online at http://www.cisco.com to find documentation of related commands.

show cef

show cef interface

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