LANCOM GS
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Chapter 4: Operation of Web- based Management
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4.3.4
IGMP Status
Internet Group Management Protocol (IGMP) is used to snoop the status of IP
multicast groups and display its associated information in both tagged VLAN
and non-tagged VLAN networks. When IGMP snooping is enabled in the
switch it analyzes all IGMP packets between hosts connected to the switch
and multicast router in the network. When a switch hears an IGMP report from
a host for a given multicast group, the switch adds the host's port number to
the multicast list for that group. When the switch hears an IGMP Leave, it
removes the host's port from the table entry.
IGMP Status shows the VLAN ID for each multicast group.
Parameter:
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VLAN ID:
Shows VLAN ID for each multicast group.
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Querier:
Shows the group membership queries status.
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Queries transmitted:
Shows the number of group membership queries transmitted.
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Queries received:
Shows the number of group membership queries received.
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V1 Reports:
When a host receives a group membership query, it identifies the groups
associated with the query and determines to which groups it belongs. The
