Stack Redundancy - Avaya P332GT-ML Installation And Configuration Manual

Stack Redundancy

In the unlikely event that a P330 switch or Octaplane link should fail, stack integrity
is maintained if the redundant cable is connected to the stack. The broken link is
bypassed and data transmission continues uninterrupted. The single management
IP address for the stack is also preserved for uninterrupted management and
monitoring. You can remove or replace any unit within the stack without disrupting
operation or performing stack-level reconfiguration.
Since each P330 module has an integral SNMP agent, any module in a stack can
serve as the stack Network Managment Agent (NMA) while other NMAs act as
redundant agents in "hot" standby. If the "live" NMA fails then a backup is
activated instantaneously.
Avaya P332GT-ML User's Guide
Chapter 11 Avaya P330 Layer 2 Features
81