Lucent Technologies P550 - Manual (Page 156)

Configuring IP Routing (Layer 3)
7-30 Cajun P550/P220 Switch Operation Guide
Displaying the Multicast Group Table
The multicast group table provides information on interfaces that are members of an
IGMP group and contains an expiry time for the entry, IP address of the group, and the
group reporter address.
To display the IGMP group table:
1. In the IGMP Display section of the Web Agent window, click Group
Membership Table. The IGMP Group Membership Table dialog box opens.
2. To modify your IGMP group membership table, perform one of the following:
• Select the entry and click Delete Entry to delete one or more entries.
• Click Flush Table to clear the entire table.
• Click REFRESH to receive the most up-to-date information on the entries in
the table.
3. Use Table 7-17 to review the IGMP Group Membership information:
Query Messages
Transmitted Number of query messages sent by a multicast router. These
messages are sent to discover which host groups have members
on their attached local networks. Queries are addressed to the
all-hosts group (address 224.0.0.1), and carry an IP
time-to-live of 1.
Unknown Messages
Received IGMP messages received with an unsupported type.
Number of Current
Groups Number of groups on each interface for which there are entries
in the Group Membership Table.
Table 7-17. IGMP Group Membership Table Parameters
Parameter Defines the...
Group Member Interface Interface that is connected to a member of IGMP group.
Group Address Group address that has members on this interface.
Group Created On Time at which the group was created on the router.
Group Multicast Protocol Routing protocol being used for the group. If no routing
protocol is being used on the interface a group is on, this
column displays IGMP.
Table 7-16. IGMP Interface Statistical Parameters (Continued)
Parameter Defines the...