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