Cisco IOS in a Nutshell, 2nd Edition

Name

ip route priority high — router

Synopsis

ip route priority high tag-value
no ip route priority high tag-value

Configures

IS-IS routing

Default

None

Description

This command assigns a high priority to an IS-IS prefix, which means routes with the specified tag are marked for faster processing and installation into the global routing table. This provides faster convergence for applications like Voice over IP. The tag is the same as that specified in the isis tag command.

Example

interface serial1
  ip router isis
  isis tag 101
!
router isis
  ip route priority high tag 101