Netgear XCM8806 Chassis User Manual - Page 747

NETGEAR 8800 User Manual enable ipmcforwarding comm._vlan configure ospf add vlan comm._vlan area 0.0.0.0 enable ospf PIM Snooping Example Configuration Displays After the example configuration is complete, multicast receivers connect to the network through switch S5 and multicast sources connect through switch S3. When switch S5 receives an IGMP request from the receiver_vlan for group 225.1.1.1, it sends a PIM (*, G) join towards switch S3, which is the RP. The PIM snooping feature on switch S1 snoops the (*, G) join, and the resulting entry can be viewed by entering the following command at switch S1: show pim snooping vlan comm_vlan PIM Snooping Vlan comm_vlan(3971) ENABLED Snooping ENABLED Source * Group 225.1.1.1 RP 10.172.169.4 UpPort DownPort Age 1 2 15 HoldTime 210 Neighbor IP DR Port Age 10.1272.168.4 YES 1 2 10.1272.168.2 NO 2 2 10.1272.168.3 NO 3 2 Hold Time 105 105 105 Once multicast traffic arrives from the sender_vlan, the LHR (switch S2) sends the (S, G) join message, which is snooped by the PIM snooping switch, switch S1. The resulting entries can be viewed by entering the following command at switch S1: show pim snooping vlan comm_vlan PIM Snooping Vlan comm_vlan(3971) ENABLED Snooping ENABLED Source Group * 225.1.1.1 10.172.169.10 225.1.1.1 RP 10.172.169.4 10.172.169.4 UpPort 1 1 DownPort 2 2 Age 15 15 HoldTime 210 210 Neighbor IP DR Port Age 10.1272.168.4 YES 1 2 10.1272.168.2 NO 2 2 10.1272.168.3 NO 3 2 Hold Time 105 105 105 Multicast traffic is forwarded only to those ports that have received (*, G) or (S, G) joins and designated router (DR) ports. Chapter 27. Multicast Routing and Switching | 747