Avaya Configuring Interface and Router Redundancy Uživatelský manuál stáhnout pdf (Strana 58)

Configuring Interface and Router Redundancy

5-10 114079 Rev. B

Parameter: Automatic Role Switching

Default: Auto

Options: Manual

| Auto | Switch on Failure | One Shot Auto

Function: Auto enables automatic role switching out of the primary role when a

router detects that it is no longer the best primary router, based on priority

settings among the redundant routers. When the primary router switches

out of the primary role, a backup router switches into the primary role.

Anything else that backup router has been doing stops when it becomes

primary.

In some circumstances, you may not want the backup router to stop

processing automatically. If that is the case, set this parameter to Manual.

The warning section of the log will indicate when the routers should

change roles.

Switch on Failure allows a role change only when an interface on the

primary router fails, or a resource becomes unreachable, and does not

consider Priority or Member ID.

One Shot Auto triggers a one-time only automatic role change. Thereafter

a role change occurs only if an interface fails or a resource becomes

unreachable.

Instructions: Accept the default, Auto, or choose one of the other options according to

the requirements of your network.

MIB Object ID: 1.3.6.1.4.1.18.3.5.17.1.11

Parameter: Hello Timer

Default: 2 seconds

Options: 1 to 86,400 seconds

Function: Speciﬁes the amount of time that the routers in the redundancy group

have for sending each other primary and secondary Hello PDUs. The

routers use Hello PDUs to initiate the bidding process that determines

which router is primary.

Instructions: Enter a value in the speciﬁed range or accept the default of 2.

MIB Object ID: 1.3.6.1.4.1.18.3.5.17.1.15

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Avaya Configuring Interface and Router Redundancy Uživatelský manuál Strana 58