Reference Guide
Intermediate System to Intermediate System (IS-IS) | 919
Syntax
hostname dynamic 
To disable this command, enter no hostname dynamic.
Defaults
Enabled.
Command Modes
ROUTER ISIS
Command
History
Usage
Information
Use this command to build name-to-systemID mapping tables through the protocol. All show 
commands that display systems also display the hostname.
Related
Commands
ignore-lsp-errors 
e 
Ignore LSPs with bad checksums instead of purging those LSPs. 
Syntax
ignore-lsp-errors
To return to the default values, enter no ignore-lsp-errors.
Defaults
In IS-IS, the default deletes LSPs with internal checksum errors (no ignore-lsp-errors). 
Command Modes
ROUTER ISIS
Command
History
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 could 
cause disruption to your system operation.
ip router isis
e 
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, enter the no ip router isis [tag] command.
Version 8.3.19.0 Introduced on S4820T
Version 8.3.12.0 Introduced on S4810
clns host Define a name-to-NSAP mapping.
Version 8.3.19.0 Introduced on S4820T
Version 8.3.12.0 Introduced on S4810










