Chapter 5: Operation of Web-based Management
5.3.3 IGMP Status
Function name: IGMP Status
Function description: Display IGMP status. In Fig.
Figure 5-25. IGMP Status.
Parameter description:
VLAN ID: Show VLAN ID for each multicast group.
Querier: Show the group membership queries status.
Queries transmitted: Count the group membership queries transmitted.
Queries received: 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 which groups it belongs to. 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 calculates the number of times IGMPV1 reports.
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 calculates the number of times IGMPV2 reports.
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 calculates the number of times IGMPV3 reports.
V2 Leaves: When a host leaves a group, it sends a leave group membership message to multicast routers on the network, it shows the leaves number.
Page 67 |
