Configuring Suppression On Igmp Report Messages - H3C S7500 Series Operation Manual

Operation Manual – Multicast
H3C S7500 Series Ethernet Switches
After the configuration of IGMP Proxy on the Layer 3 switch of the leaf network, the leaf
Layer 3 switch is just a host for the external network. Only when the Layer 3 switch has
directly connected members, can it receive the multicast data of corresponding groups.
Follow these steps to configure IGMP Proxy:
Enter system view
Enable the multicast
routing protocol
Enter VLAN interface
(which is connected to the
external network) view
Enable the IGMP protocol
Configure IGMP Proxy
The IGMP Proxy feature is disabled by default.
Caution:
Both the multicast routing protocol and the IGMP protocol must be enabled on the
proxy interface.
You must enable the PIM protocol on the interface before configuring the igmp
proxy command. Otherwise, the IGMP Proxy feature does not take effect.
Only one IGMP proxy interface can be configured for one interface.

6.2.6 Configuring Suppression on IGMP Report Messages

When a Layer 2 switch receives an IGMP report message from a host in a multicast
group, the switch will forward the message to the Layer 3 switch port connecting to it. If
there are multiple hosts in a multicast group, the Layer 3 switch will receive the same
IGMP report messages from multiple hosts in a multicast group.
To do...
system-view
multicast
routing-enable
interface Vlan-interface
interface-number
igmp enable
igmp proxy
Vlan-interface
interface-number
Use the command...
6-12
Chapter 6 IGMP Configuration
Remarks
—
Required
—
Required
By default, if the IP
multicast routing protocol
is enabled globally, IGMP
is enabled on all the
layer-3 interfaces
automatically.
Required