Monitoring IGMP Information on a Virtual Router

Purpose

Display IGMP information for a virtual router.

Action

To display IGMP information for a virtual router:

host1:boston#show ip igmp
Routing Process IGMP, Administrative state enabled, Operational state enabled
    2 total interfaces, 2 enabled, 0 disabled
0 enabled interfaces performing graceful restart
2 learnt groups
IGMP Statistics:
    Rcvd: 1 total, 0 checksum errors, 0 unknown types
          0 queries, 1 reports, 0 leaves
    Sent: 11 total

Meaning

Table 16 lists the show ip igmp command output fields.

Table 16: show ip igmp Output Fields

Field Name	Field Description
Routing Process	Routing process for this virtual router (IGMP)
Administrative state	Status of IGMP in the software: enabled or disabled
Operational state	Status of IGMP on the virtual router: enabled or disabled
Total interfaces	Number of interfaces on which you started IGMP
enabled	Number of interfaces on which IGMP is enabled
disabled	Number of interfaces on which IGMP is disabled
learnt groups	Number of multicast groups that the virtual router has discovered
IGMP graceful restart duration	Restart interval in seconds
IGMP Statistics Rcvd	Statistics for IGMP messages received: total—Total number of IGMP messages received checksum errors—Number of IGMP messages received with checksum errors unknown types—Number of IGMP messages received that are not group membership queries, group membership reports, or leave group membership messages queries—Number of group membership queries reports—Number of group membership reports leaves—Number of leave group membership messages
IGMP Statistics Sent	Statistics for IGMP messages sent: Total number of group membership queries sent

Monitoring IGMP Information on a Virtual Router

Purpose

Action

Meaning

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