HP 6125XLG - Displaying and Maintaining IGMP; IGMP Configuration Examples; Network Requirements

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With this feature enabled, after receiving an IGMP leave message, the IGMP querier does not send
IGMP group specific queries or IGMP group and source specific queries. Instead, it directly sends a leave
notification to the upstream. This reduces leave latency and preserves the network bandwidth.
The IGMP fast-leave processing configuration is effective only if the device is running IGMPv2 or
IGMPv3.
To enable IGMP fast-leave processing:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter interface view.
interface interface-type
interface-number
N/A
3. Enable IGMP fast-leave
processing.
igmp fast-leave [ group-policy
acl-number ]
By default, IGMP fast-leave
processing is disabled.
Displaying and maintaining IGMP
CAUTION:
The reset igmp group command might cause multicast data transmission failures.
Execute display commands in any view and reset commands in user view.
Task Command Remarks
Display IGMP group information.
display igmp [ vpn-instance
vpn-instance-name ] group
[ group-address | interface
interface-type interface-number ]
[ static | verbose ]
N/A
Display IGMP information.
display igmp[ vpn-instance
vpn-instance-name ] interface
[ interface-type interface-number ]
[ verbose ]
N/A
Clear all the dynamic IGMP group
entries of the specified IGMP group
or all IGMP groups.
reset igmp [ vpn-instance
vpn-instance-name ] group { all |
interface interface-type
interface-number { all |
group-address [ mask { mask |
mask-length } ] [ source-address
[ mask { mask | mask-length } ] ] } }
N/A
IGMP configuration examples
Network requirements
As shown in Figure 31: