Configuring Router Ports To Join The Specified Multicast Group; Configuring Igmp Proxy - H3C S7500 Series Operation Manual

Operation Manual – Multicast
H3C S7500 Series Ethernet Switches

6.2.4 Configuring Router Ports to Join the Specified Multicast Group

Generally, the host running IGMP will respond to the IGMP query messages of the
multicast switch. If the host cannot respond for some reasons, the multicast switch may
think that there is no members of the multicast group in this network segment and then
remove the corresponding paths.
In order to avoid such cases, you must configure a port of the VLAN interface of the
switch as a router port to add it to the multicast group. When the port receives IGMP
query messages, the multicast switch will respond to it. As a result, the network
segment that the Layer 3 interfaces reside can continue to receive multicast packets.
Follow these steps to configure router ports to join the specified multicast group:
Enter system view
Enable the multicast
routing protocol
Enter VLAN interface view
Enable IGMP on the
current interface
Configure router ports to
join a multicast group
Quit VLAN interface view.
Enter Ethernet port view
Configure router ports to
join a multicast group

6.2.5 Configuring IGMP Proxy

I. Configure IGMP Proxy
You can configure IGMP proxy to reduce the workload of configuration and
management of leaf networks without affecting the multicast connections of the leaf
network.
To do...
system-view
multicast
routing-enable
interface Vlan-interface
interface-number
igmp enable
igmp host-join
group-address port
interface-list
quit
interface interface-type
interface-number
igmp host-join
group-address vlan
vlan-id
Use the command...
6-11
Chapter 6 IGMP Configuration
Remarks
—
Required
—
Required
IGMP is disabled on the
interface by default.
Optional
By default, the router port
does not join in any
multicast group.
—
—
Optional
By default, the router port
does not join in any
multicast group.