Displaying And Maintaining Igmp - HP A8800 Configuration Manual

However, when a downstream interface of a proxy device fails to win the querier election, you must
enable multicast forwarding on this interface.
On a multi-access network with more than one IGMP proxy device, you cannot enable multicast
forwarding on any other non-querier downstream interface after one of the downstream interfaces of
these IGMP proxy devices has been elected as the querier. Otherwise, duplicate multicast flows might be
received on the multi-access network.
To enable multicast forwarding on a downstream interface
Step
1. Enter system view.
2. Enter interface view.
3. Enable multicast forwarding on
a non-querier downstream
interface.

Displaying and maintaining IGMP

CAUTION:
The reset igmp group command might cause an interruption of receivers' reception of multicast data.
To display and maintain IGMP:
Task
Display IGMP group
information.
Display the Layer 2 port
information of IGMP groups.
Display information about the
hosts tracked by IGMP on an
interface.
Display information about the
hosts tracked by IGMP on the
Layer 2 ports (on a distributed
device).
Display IGMP configuration
and operation information.
Command
system-view
interface interface-type
interface-number
igmp proxying forwarding
Command
display igmp [ all-instance | vpn-instance
vpn-instance-name ] group [ group-address |
interface interface-type interface-number ]
[ static | verbose ] [ | { begin | exclude |
include } regular-expression ]
display igmp group port-info [ vlan vlan-id ]
[ slot slot-number ] [ verbose ] [ | { begin |
exclude | include } regular-expression ]
display igmp host interface interface-type
interface-number group group-address [ source
source-address ] [ | { begin | exclude |
include } regular-expression ]
display igmp host port-info vlan vlan-id group
group-address [ source source-address ] [ vlan
vlan-id ] [ slot slot-number ] [ | { begin | exclude
| include } regular-expression ]
display igmp [ all-instance | vpn-instance
vpn-instance-name ] interface [ interface-type
interface-number ] [ verbose ] [ | { begin |
exclude | include } regular-expression ]
100
Remarks
N/A
N/A
Disabled by default.
Available in any view.
Available in any view.
Available in any view.
Available in any view.
Available in any view.