Avaya Configuring Interface and Router Redundancy User Manual download pdf (Page 30)

Configuring Interface and Router Redundancy

2-4 114079 Rev. A

The primary router periodically checks that it is functioning normally. If the

primary router is not functioning properly, a role change occurs, as follows:

1. The primary router notiﬁes the best secondary router that it intends to change

out of the primary role.

2. The best secondary router informs the other members of the impending role

change, and those members start a timer (using the Bidding Timer value) to

prevent additional role changes by other members.

3. The best secondary router reboots, using the primary conﬁguration ﬁle, and

assumes primary status.

Table 2-2 describes how a primary router changes to a secondary role while the

best secondary router assumes the primary role.

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Avaya Configuring Interface and Router Redundancy User Manual Page 30