DELL 8132 ユーザーズマニュアル

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Virtual Router Redundancy Protocol Commands
1381
Interface Tracking
For interface tracking, VRRP is a routing event client. When a routing 
interface goes up or down (or routing is disabled globally, implying all routing 
interfaces are down), VRRP checks if the interface is tracked. If so, it adjusts 
the priority. Interface tracking is useful for tracking interfaces that are not 
configured for VRRP. Only IP interfaces are tracked.
Route Tracking
The network operator may perform this task to track the reachability of an IP 
route. A tracked route is considered up when a routing table entry exists for 
the route and the route is accessible. For route tracking, make VRRP a best 
route client of RTO. When a tracked route is added or deleted, change the 
priority. For simplicity, routes are not distinguished with the next hop 
interface that has VRRP enabled. So VRRP Route Tracking can ignore route 
modifications.
Commands in this Chapter
This chapter explains the following commands:
2CSPC4.X8100-SWUM102.book  Page 1381  Friday, March 15, 2013  8:56 AM