1-18 User Guide for the Avaya P580 and P882 Multiservice Switches, v6.1
Chapter 1
■Dual-Layer Spanning Tree
■Global Disable
For more information about Spanning Tree, see Chapter7, “Configuring
Rapid Spanning Tree.”
Extensive Fault Tolerance
All multiservice switches are designed to function as backbone switches.
You can install each switch in your network’s core without creating a single
point of failure.
Extensive fault tolerance features include:
■Port redundancy. If the primary port fails, the secondary port
becomes the active port. Failover time is less than 5 seconds. For
information on port redundancy, see Chapter8, “Configuring
Ports.”
■VRRP. Virtual Router Redundancy Protocol (VRRP) is used to
provide fast-fail over for hosts if the default gateway fails. For
information on VRRP, see Chapter12, “Configuring IP Routing.”
■N+1 power. Power supplies share the power supply load. If one
fails, the remaining supplie(s) assume the load automatically and the
switch management system warns of the failure.
■Hot-swappable fans and modules—Each fan and module can be
changed from the switch front panel, without powering down the
switch.
■Redundant switch links (using spanning tree and hunt groups).
■Front-loadable cables, modules, power supplies and fans.
■Redundant switch element and switch controller modules (fault-
tolerant switches only).
■Redundant supervisor modules.
For more information hardware red undancy, see Chapter 10, “Configuring
Redundancy Options.”