Monitoring IGMP Running Status

Context

Run the following display commands in any view to check the IGMP running status during routine maintenance.

Procedure

Run the display igmp [ vpn-instance vpn-instance-name | all-instance ] group [ group-address | interface interface-type interface-number ]^* [ verbose ] command to display information about the members that have dynamically joined a multicast group.
Run the following commands to check information about members of a static multicast group.
- Run the display igmp [ vpn-instance vpn-instance-name | all-instance ] group [ group-address ] static [ up | down ] [ verbose ] command to display the interfaces that are in Up or Down state and have been statically bound to a multicast group.
- Run the display igmp [ vpn-instance vpn-instance-name | all-instance ] group [ group-address ] static interface-number command to display the number of interfaces that have been statically bound to a multicast group.
- Run the display igmp [ vpn-instance vpn-instance-name | all-instance ] group [ group-address ] interface interface-type interface-number static [ verbose ] command to display information about static multicast groups on a specified interface.
- Run the display igmp [ vpn-instance vpn-instance-name | all-instance ] group static interface interface-type interface-number entry-number command to display the number of static multicast groups configured on a specified interface.
Run the display igmp [ vpn-instance vpn-instance-name | all-instance ] interface [ interface-type interface-number | up | down ] [ verbose ] command to display the IGMP configuration and running information on an interface.
Run the display igmp [ vpn-instance vpn-instance-name | all-instance ] routing-table [ group-address [ mask { group-mask | group-mask-length } ] | source-address [ mask { source-mask | source-mask-length } ] ]^* [ static ] [ outgoing-interface-number [ number ] ] command to display information about the IGMP routing table.
Run the display igmp [ vpn-instance vpn-instance-name | all-instance ] group [ group-address | interface interface-type interface-number ]^* ssm-mapping [ verbose ] command to display information about group memberships established with SSM mapping.
Run the display igmp [ vpn-instance vpn-instance-name | all-instance ] ssm-mapping { group [ group-address ] | interface [ interface-type interface-number ] } command to display SSM mapping entries configured and whether SSM mapping is enabled on an interface.
Run the display igmp [ vpn-instance vpn-instance-name | all-instance ] control-message counters [ interface interface-type interface-number ] [ message-type { query | report } ] command check statistics about IGMP messages.
Run the following commands to check statistics about invalid IGMP messages and detailed information about these messages.
- Run the display igmp [ vpn-instance vpn-instance-name | all-instance ] invalid-packet [ interface interface-type interface-number | message-type { leave | query | report } ]^* command to display statistics about invalid IGMP messages.
- Run the display igmp invalid-packet [ packet-number ] verbose command to display detailed information about the latest invalid IGMP messages received on the device.