10-4 User Guide for the Avaya P580 and P882 Multiservice Switches, v6.1
Chapter 10
Figure 10-2. Layout of the Redundant Backplane for P882 Chassis
The Avaya Multiservice switches are equipped with diagnostics to:
■Monitor the status of the Primar y switch controller.
■Monitor the status of a Active ele m ent.
■Monitoring of Health Check status messages sent between the
Active and Standby supervisors.
If the Active supervisor fails, the Standby supervisor assumes supervisor
operation. Information about a failed Supervisor (CPU) displays in t he CPU
Redundancy Status Web page.
If the Primary controller fails, the redundant controller takes over switch
controller operation. When an element fails, diagnostics run automatically
to test the hardware. Information about a failed controller or element
displays in the Switch Fabric Status Web page. The redundant element takes
over the function of the failed element until it is replaced.
* Note: In the event that the Primary switch contr oller fails, the switch
will reset and record an entry of the event in the shutdown log.
If the Active element fails, the Active and Standby Supervisor
modules can no longer communicate, or be synchronized. No
health messages will be passed. However, the Standby
Supervisor module will become Active if the current Active
Supervisor module fails.