Troubleshooting Guide

10. Search trace results for a specific string value:
trace grep [WORD<0-128>]
If you use this command and do not specify a string value, you clear the results of a previous
search.
11. Stop tracing:
trace shutdown
12. Disable the Intermediate-System-to-Intermediate-System trace flags:
trace flags isis remove { none | tx-hello | rx-hello | tx-pkt | rx-
pkt | adj | opt | tx-lsack | rx-lsack | tx-lsp | rx-lsp | pkt-err |
nbr-mismatch | flood | spf-intra | spf-inter | spf-extern | prefix |
nbr-change | intf-change | decide | fdb | dr | auth-fail | config |
purge | policy | redist | tx-snp | rx-snp | timer | spbm-global |
global | perf | ucast-fib | node | mcast-fib | isid | ip-shortcut |
debug |ip6–shortcut }
Example
Switch:1>enable
Clear prior trace information:
Switch:1#clear trace
Enable IS-IS trace flags for received IS-IS hello packets:
Switch:1#trace flags isis set rx-hello
Enable IS-IS trace flags for transmitted IS-IS hello packets:
Switch:1#trace flags isis set tx-hello
Configure the module ID to 119 (IS-IS module) and the trace to 4 (very verbose):
Switch:1#trace level 119 4
Enable the display of trace output to the screen:
Switch:1#trace screen enable
Switch:1# Screen tracing is on
Disable the display of trace output to the screen:
Switch:1#trace screen disable
Switch:1# Screen tracing is off
Variable definitions
Use the data in the following table to use the trace flags isis command.
Software troubleshooting tool configuration using ACLI
January 2017 Troubleshooting 122
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