Previously, a controlling bridge (CB) had to send separate copies of IP multicast traffic to each receiver. Now the CB only sends one copy of the IP multicast traffic per receiver VLAN for a particular IP multicast group. For example, if group 225.0.0.1 has five receivers in VLAN v1 and four receivers in VLAN v2, the CB sends one copy to VLAN v1 and one copy to VLAN v2 and the bridge port extender (BPE) does the replication.
ExtremeSwitching X465, X590, X690, X670-G2 series switches.
Using optimized IP multicast reduces the number of VLANs with extended ports to 3,000.
configure forwarding vpex ipmc replication [ controlling-bridge | bpe ]
The following show command now displays IP multicast replication information:
show forwarding configuration