Avaya 580 - Manual (Page 30)

1-6 User Guide for the Avaya P580 and P882 Multiservice Switches, v6.1
Chapter 1
Switch Fabric In Fabric mode 1, the switching fabric provides a 16x16 crossbar with 56.32
Gbps aggregate bandwidth. In Fabric mode 2, the switching fabric provides
a 33x33 crossbar with 139.392 Gbps aggregate bandwidth.
The crossbar switch matrix provides low latency, high throughput packet
switching using a crossbar architecture.
The Avaya P882 Multiservice switch chassis crossbar supports:
■
33 fabric ports (two per I/O module slot, plus one for the supervisor
module - Fabric mode 2).
■
1.76 Gb/s (in and out) on each fabric port in Fabric mode 1 and 2.11
Gb/s (in and out) on each fabric port
in Fabric mode 2.
■ 56.32 Gb/s backplane capacity in Fabric mode 1 and 139.392 Gb/s
backplane capacity in Fabric mode 2.
■
Under-subscribed switching fabric in most configurations.
■
Single copy replication—Input frames destined for multiple output
switch ports pass through the crossbar only once and are copied by
the crossbar to each destination.
■
Hardware-assisted multicast pruning—The switch only forwards to
appropriate destination switch ports
The Power System
Overview Two power supplies are required to operate a fully-loaded P580 or P882
chassis. You can install a third power supply for backup if one of the other
two fails.
Features of the power system include:
■
Load sharing by the installed power supplies.
■
Power supplies can be warm swapped. (Before removing a power
supply, you must turn it off and unplug it; however, the other power
supplies can remain turned on).
■
Both AC and DC power supplies are supported.
■
Static power allocation or dynamic power allocation if insufficient
power is available for all modules in the chassis.