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1 igmp snooping – Planet Technology WGSD-8000 User Manual

Page 120

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User’s Manual of WGSD-1022/WGSD-8000

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Report

A message sent by a host to the querier to indicate that the host wants to be or is a

member of a given group indicated in the report message.

Leave Group

A message sent by a host to the querier to indicate that the host has quit to be a
member of a specific multicast group.

4.10.1 IGMP Snooping

When IGMP Snooping (see figure 4-55) is enabled globally, all IGMP packets are forwarded to the CPU. The CPU analyzes the

incoming packets and determines which ports want to join which Multicast groups, which ports have Multicast routers generating

IGMP queries, which routing protocols are forwarding packets and Multicast traffic.

Ports requesting to join a specific Multicast group issue an IGMP report, specifying that Multicast group is accepting members.

This results in the creation of the Multicast filtering database.

Figure 4-55

IGMP Snooping screen

The page contains the following fields:

„

IGMP Global

IGMP Snooping

Status

Indicates if IGMP Snooping is enabled or Disabled on the device.

„

VLAN IGMP Settings