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1-14 Avaya P550R, P580, P880, and P882 Multiservice Switch User Guide, v5.3.1
Chapter 1
■ 4-Port 1000BASE-T Ethernet module (layer 2 and layer 3
support), with 4 RJ-45 ports, 100M (M8004R-1000T)
■ 8-Port 1000BASE-T Ethernet module (layer 2 and layer 3
support), with 8 RJ-45 ports, 100M (M8008R-1000T)
■ Layer 3 Supervisor Module with PCMCIA slot.
* Note: When a port on an 80-Series Gigabit Ethernet module is
disabled, the port link light blinks continuously. In
versions earlier than v5.2.10, the link light extinguished
when the port was disabled.
Software Features
The Avaya P550R/P580/P880/P882 Multiservice switches support
the following software features:
■ Virtual Bridging Functions
■ Flood Pruning Using VLANs
■ Hunt Groups
■ OpenTrunk Technology
■ Three Spanning Tree Modes
■ Buffer and Queue Management
Virtual Bridging Functions
All multiservice switches are designed to support:
■ Up to 28,000 MAC addresses in the switch address
forwarding table — allows the switch to store forwarding
information for hosts in very large networks.
■ Segmented address tables qualified by address and VLAN
membership — allows the same host to appear on different
VLANs on different ports.
■ Optional per-VLAN Spanning Tree Protocol — isolates loop
control to smaller domains, so spanning trees converge faster
after a topology change.