Wireless/Redundant Edge Services xl Module Management and Configuration Guide WS.02.xx and greater

10-33
Redundancy Groups
Configuring a Redundancy Group
Reverting RPs Adopted by a Standby Member to the
Active Member
When an active member of a redundancy group fails, a standby member of the
group adopts the RPs. For continuity of service, the standby member contin-
ues to support the RPs even when the active member comes back online.
However, eventually you may want to return the RPs to the original module.
You can manually revert a standby module, which means that you force it to
unadopt all of its RPs. Only revert a module when you can afford a disruption
to network service for the minute or two during which RPs become adopted
by the active module.
You are allowed to revert a module when all of these conditions are met:
■ The module is a standby member of the group.
■ The module has adopted a failed member’s RPs.
■ The module has detected that the failed member has returned online.
If the module has adopted RPs from more than one failed member, all
must be recovered.
Note Your redundancy group configuration might define multiple modules as active
members. In some circumstances, another active member can adopt a failed
member’s RPs. (See “Redundancy Group Behavior When a Member Fails” on
page 10-10.) However, you cannot revert an active member.
Follow these steps to have a standby member relinquish its RPs:
1. Select Network Setup > Redundancy Group > Configuration.
2. Click the Revert Now button.
The button is active only if the three conditions described above are met.