Avaya Configuring Interface and Router Redundancy Manuel d'utilisateur télécharger pdf (Page 21)

308626-14.00 Rev 00

2-1

Chapter 2

Router Redundancy Overview

Router redundancy protects a network from the irrecoverable failure of an entire

router. You configure routers to be members of a router redundancy group. The

group includes a primary router that performs normal routing and bridging

services, and one or more secondary routers that take over if the primary router

fails.

Primary Router

Nortel Networks router redundancy software allows you to decide which router

has priority to be the primary router. It includes configurable bidding timers and

timeout periods. These values determine how and when a router in a redundancy

group changes roles from secondary to primary.

Dedicated Secondary Router

Nortel Networks recommends that you configure router redundancy so that a

secondary router has no function other than to serve as a backup. A router so

configured is a dedicated secondary router.

You can configure a redundant router to carry other traffic, unrelated to that of its

redundancy group. Be aware, however, that if a secondary router becomes the

primary router in a redundancy group, it stops performing any other data transfer

operations; its role in the group takes precedence over any other functions you

assign it.

Note:

You can configure multiple router redundancy groups on the same

network.

1 2 ... 16 17 18 19 20 21 22 23 24 25 26 ... 89 90

Pas de commentaire

Avaya Configuring Interface and Router Redundancy Manuel d'utilisateur Page 21