Figure 10.4 Igmp Snooping Example - Samsung Ubigate iBG3026 Configuration Manual

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As a result of this configuration, the queries received on the router by Ethernet

1/1 will not be forwarded to Ethernet 0/1 and Ethernet 2/1. The router itself

will reply back with Membership report message. However, if you do not

enable Proxy on the router, when it receives a IGMP Query message on

Ethernet 1/1, it forwards it to both Host A and Host B. As a result, both the

hosts reply with a Membership report(as Layer-2 IGMP is running on the

Since Host A and Host B are members of the same Multicast group, the router

is not notified when Host A leaves the group, as the group still has another

member Host B remaining. When Host B also leaves the group, the router will

send a Leave message to the Router with the destination address as 224.0.0.2

(All Router Destination Address).

IGMP Snooping Configuration

Router#configure terminal

Router/configure# ip igmp snooping vlan 2 bridge 1

Router/configure# ip igmp snooping bridge 1

Router/configure# ip igmp snooping fast-leave vlan 2 bridge

Router/configure# ip igmp snooping group-membership-interval

30 vlan 2 bridge 1

Router/configure# ip igmp snooping last-member-query-

interval 40 vlan 2 bridge 1

Router/configure# ip igmp snooping max-response-time 60 vlan

Router/configure# ip igmp snooping mrouter interface

Figure 10.4 IGMP Snooping Example

Ubigate iBG3026 Configuration Guide/Ed.00

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