Black Box LGB2002A-R2, User Manual

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User Manual
Publication date: September, 2007
Revision A3
91
4-3-5. IGMP Status
Function name:
IGMP Status
Function description:
Display IGMP status. In Fig. 4-29, the window shows VLAN ID for each
multicast group.
Parameter description:
VLAN Id:
Show VLAN Id for each multicast group.
Querier:
Show the group membership queries status.
Queries transmitted:
To count the group membership queries transmitted.
Queries received:
To count the group membership queries received.
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 host then sets a timer, with a value less than the
Max Response
Time
field in the query, for each group to which it belongs. It Calculate
the number of times of IGMPV1 report.
V2 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 host then sets a timer, with a value less than the
Max Response
Time
field in the query, for each group to which it belongs. It Calculate
the number of times of IGMPV2 report.
V3 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 host then sets a timer, with a value less than the
Max Response
Time
field in the query, for each group to which it belongs. It Calculate
the number of times of IGMPV3 report.
V2 Leaves:
When a host leaves a group, it sends a leave group membership
message to multicast routers on the network, it show the leaves number.