CLI 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
Configure 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 identifies a specific area
routing process. If you do not specify a tag, a null tag is
assigned.
Defaults No processes are configured.
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 — configures an IS-IS network entity title (NET) for the routing process.
• router isis — enables the IS-IS routing protocol.
Intermediate System to Intermediate System (IS-IS)
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