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This is the documentation for the 25.06 version. Looking for the documentation of the latest version? Have a look here.

IS-IS Debugging Information

The following debugging commands are available in config-frr-isis mode. Messages will be logged in accordance with the settings in Dynamic Routing Logging.

debug adj-packets:

Enable debugging information for IS-IS adjacency packets.

debug events:

Enable debugging information for IS-IS Events.

debug flooding:

Enable debugging information for IS-IS flooding.

debug lfa:

Enable debugging information for IS-IS LFA events.

debug lsp-gen:

Enable debugging information for IS-IS LSP generation.

debug lsp-sched:

Enable debugging information for IS-IS scheduling of LSP generation.

debug packet-dump:

Enables packet-level debugging.

debug route-events:

Enable debugging information for IS-IS route events.

debug snp-packets:

Enable debugging information for IS-IS CSNP/PSNP packets.

debug spf-events:

Enable debugging information for IS-IS SPF events.

debug tx-queue:

Enable debugging information for IS-IS TX queue.

debug update-packets:

Enable debugging information for IS-IS update packets.