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ensure that the downstream receiver hosts on the router interface can receive multicast data,
you must enable multicast forwarding on the interface. For more information, see "Enabling
multicast forwarding on a non-querier interface."
To enable IGMP proxying:
1. Enter system view.
system-view
N/A
2.
Enable IP multicast routing
and enter MRIB view.
multicast
routing
[
vpn-instance
vpn-instance-name ]
By default, IP multicast routing is
disabled.
3. Return to system view.
quit
N/A
4. Enter interface view.
interface
interface-type
interface-number
N/A
5. Enable IGMP proxying.
igmp proxying enable
By default, IGMP proxying is
disabled.
Enabling multicast forwarding on a non-querier interface
Typically, only IGMP queriers can forward multicast traffic and non-queriers cannot. This prevents
multicast data from being repeatedly forwarded. If a router interface on an IGMP proxy device failed
in the querier election, enable multicast forwarding on the interface to forward multicast data to
attached receiver hosts.
Configuration restrictions and guidelines
A shared-media network might have multiple MLD proxies, including one proxy acting as a querier.
To avoid duplicate multicast traffic, do not enable multicast forwarding on any of the non-querier MLD
proxies for the network.
Configuration procedure
To enable multicast forwarding on a non-querier interface:
1. Enter system view.
system-view
N/A
2. Enter interface view.
interface
interface-type
interface-number
N/A
3. Enable multicast forwarding on
the interface.
igmp proxy forwarding
By default, multicast forwarding
is disabled on a non-querier
interface.
Configuring multicast load splitting on an IGMP proxy
This feature enables all proxy interfaces on an IGMP proxy device to share multicast traffic on a
per-group basis.
To enable multicast load splitting on an IGMP proxy device:
1. Enter system view.
system-view
N/A
2. Enter IGMP view.
igmp
[
vpn-instance
vpn-instance-name ]
N/A
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