Command:

debug isis update-packets


Mode:

Router#


Syntax:

debug isis update-packets

no debug isis update-packets

 

Syntax Description:

This command has no arguments or keywords.

 

Command Description:

To display various sequence number protocol data units (PDUs) and link-state packets that are detected by a router, use the debug isis update-packets privileged EXEC command. The no form of this command disables debugging output.


Example:

This router has been configured for IS-IS routing. The following is sample output from the debug isis update-packets command:

Router# debug isis update-packets
ISIS-Update: Sending L1 CSNP on Ethernet0
ISIS-Update: Sending L2 CSNP on Ethernet0
ISIS-Update: Updating L2 LSP
ISIS-Update: Delete link 888.8800.0181.00 from L2 LSP 1600.8906.4022.00-00, seq E
ISIS-Update: Updating L1 LSP
ISIS-Update: Sending L1 CSNP on Ethernet0
ISIS-Update: Sending L2 CSNP on Ethernet0
ISIS-Update: Add link 8888.8800.0181.00 to L2 LSP 1600.8906.4022.00-00, new seq 10,
len 91
ISIS-Update: Sending L2 LSP 1600.8906.4022.00-00, seq 10, ht 1198 on Tunnel0
ISIS-Update: Sending L2 CSNP on Tunnel0
ISIS-Update: Updating L2 LSP
ISIS-Update: Rate limiting L2 LSP 1600.8906.4022.00-00, seq 11 (Tunnel0)
ISIS-Update: Updating L1 LSP
ISIS-Update: Rec L2 LSP 888.8800.0181.00.00-00 (Tunnel0)
ISIS-Update: PSNP entry 1600.8906.4022.00-00, seq 10, ht 1196


Misconceptions:

None.


Related Commands:

None.


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