Command:

show isis spf-log


Mode:

Router>


Syntax:

show isis area-tag spf-log

 

Syntax Description:

area-tag Meaningful name for a routing process. This name must be unique among all IP or Connectionless Network Service (CLNS) router processes for a given router. If an area tag is not specified, a null tag is assumed and the process is referenced with a null tag. If an area tag is specified, output is limited to the specified area. Required for multiarea IS-IS configuration. Optional for conventional IS-IS configuration.

 

Command Description:

To display how often and why the router has run a full shortest path first (SPF) calculation, use the show isis spf-log user command in EXEC mode.


Example:

The following is sample output from the show isis spf-log command:

Router#show isis spf-log
Level 1 SPF log
When Duration Nodes Count Last trigger LSP Triggers
00:15:46 3124 40 1 milles.00-00 TLVCODE
00:15:24 3216 41 5 milles.00-00 TLVCODE NEWLSP
00:15:19 3096 41 1 deurze.00-00 TLVCODE
00:14:54 3004 41 2 milles.00-00 ATTACHFLAG LSPHEADER
00:14:49 3384 41 1 milles.00-01 TLVCODE
00:14:23 2932 41 3 milles.00-00 TLVCODE
00:05:18 3140 41 1 PERIODIC
00:03:54 3144 41 1 milles.01-00 TLVCODE
00:03:49 2908 41 1 milles.01-00 TLVCODE
00:03:28 3148 41 3 bakel.00-00 TLVCODE TLVCONTENT
00:03:15 3054 41 1 milles.00-00 TLVCODE
00:02:53 2958 41 1 mortel.00-00 TLVCODE
00:02:48 3632 41 2 milles.00-00 NEWADJ TLVCODE
00:02:23 2988 41 1 milles.00-01 TLVCODE
00:02:18 3016 41 1 gemert.00-00 TLVCODE
00:02:14 2932 41 1 bakel.00-00 TLVCONTENT
00:02:09 2988 41 2 bakel.00-00 TLVCONTENT
00:01:54 3228 41 1 milles.00-00 TLVCODE
00:01:38 3120 41 3 rips.03-00 TLVCONTENT


Misconceptions:

None.


Related Commands:

None.


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