User’s Manual of WGSD-1022/WGSD-8000

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

Report

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 4-55IGMP Snooping screen

The page contains the following fields:

„IGMP Global

• IGMP Snooping

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

Status

 

 

 

 

 

„VLAN IGMP Settings

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