Planet XGS3-42000R User Manual page 408

The configuration steps are listed below:
XGS 3-42000R#config
XGS 3-42000R(config)#ip igmp proxy
XGS 3-42000R(config)#interface vlan 1
XGS 3-42000R(config-if-Vlan1)#ip igmp proxy upstream
XGS 3-42000R(config)#interface vlan 2
XGS 3-42000R(config-if-Vlan2)#ip igmp proxy downstream
Multicast Configuration:
Suppose the multicast server offers some programs through 224.1. 1.1. Some hosts subscribe that program at
the edge of the net work. The IGMP multicast members report themselves to the downstream ports of IGMP
Proxy enabled Switch 2 and S witch 3. Switch 2 and S witch 3 then aggregate the group membership
information and send them through the upstream ports. Switch 1 finally forward these membership
information to the multicast router when receiving the group membership information through upstream ports,
and deliver the multicast dataflow through downstream ports.
Example2: IGMP Proxy for multicast sources from downstream ports.
IGMP PROXY
Switch 2
Figure 43-11-2
As it is show in the figure above, IGMP Proxy enabled switches connected to the network in tree topology. The
multicast source server connects to the downstream port of Switch1, the multicast dataflow is distributed
through the upstream port and other downstream ports. Three IGMP Proxy enabled switches which are
connected in tree topology, respectively have one port connected to multicast routers, and no less than one
ports connected to hosts or upstream ports from other IGMP proxy enabled switches.
Multicast
Server
IGMP Proxy for multicast sources from downstream ports
Multicast
Rout er
Multicast
Rout er
IGMP PROXY
Switch 1
IGMP PROXY
Switch 3
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