The dynamic hostname exchange extension helps address the usability issues of maintaining IS-IS routers. IS-IS system IDs (which default to the switch MAC address) are not very readable. When the dynamic hostname feature is enabled, learned IS-IS hostnames are used in place of system IDs in log entries where possible. In addition, hostname TLVs appear in the show isis lsdb detail command display.
For instructions on managing the dynamic hostname feature, see Configuring the Dynamic Hostname Feature.
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