System information

Configuring IS-IS
10-7
• Configuring the Administrative Distance for IS-IS
• Configuring IS-IS Area or Domain Passwords
• Summarizing IP Address Ranges
• Enabling the LSP Overload Bit
• Configuring a Passive Interface for IS-IS
Specifying Router-Level Support
Use the is-type command in Router Configuration mode to specify that the BSR acts
as a Level 1 (intra-area) router, as both a Level 1 router and a Level 2 (inter-area)
router, or as a Level-2 router only, as shown below:
MOT(config-isis)#is-type {level-1 | level-1-2 | level-2-only}
Forcing a Default Route or Route Map into an IS-IS Domain
When routes are redistributed to an IS-IS routing domain, the BSR can be configured
to force a default route or route map into the IS-IS routing domain:
Follow these steps to force the default route into an IS-IS routing domain:
1. Use the router isis command in Global Configuration mode to enter the IS-IS
router configuration mode, as shown below:
MOT(config)#router isis [<tag>]
where:
tag is the tag name for IS-IS routing process. If this parameter is not
specified, a null tag is assumed.
2. Use the default-information originate command in Router Configuration mode
to force a default route into the IS-IS routing domain, as shown below:
MOT(config-isis)#default-information originate