Users Guide
Defaults In IS-IS, the default deletes LSPs with internal checksum errors (no ignore-lsp-errors).
Command Modes ROUTER ISIS
Supported Modes Full–Switch
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
9.2(0.0) Introduced on the MXL 10/40GbE Switch IO Module.
Usage Information IS-IS normally purges LSPs with an incorrect data link checksum causing the LSP source to regenerate the
message. A cycle of purging and regenerating LSPs can occur when a network link continues to deliver accurate
LSPs even though there is a link causing data corruption. This process could cause disruption to your system
operation.
ip router isis
Congure IS-IS routing processes on an interface and attach an area tag name to the routing process.
Syntax
ip router isis [tag]
To disable IS-IS on an interface, use the no ip router isis [tag] command.
Parameters
tag (OPTIONAL) The tag you specify identies a specic area routing process. If you do not
specify a tag, a null tag is assigned.
Defaults No processes are congured.
Command Modes INTERFACE
Supported Modes Full–Switch
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
9.2(0.0) Introduced on the MXL 10/40GbE Switch IO Module.
Usage Information To assign a network entity title to enable IS-IS, use the net command.
Related Commands
• net — congures an IS-IS network entity title (NET) for the routing process.
• router isis — enables the IS-IS routing protocol.
ipv6 router isis
Enable the IPv6 IS-IS routing protocol and specify an IPv6 IS-IS process.
Syntax
ipv6 router isis [tag]
To disable IS-IS routing, use the no router isis [tag] command.
782 Intermediate System to Intermediate System (IS-IS)