Enabling Ssm Mapping; Configuring Ssm Mappings; Configuring Igmp Proxying; Prerequisites - HP A6600 Configuration Manual

Enabling SSM mapping

To do...
1. Enter system view.
2. Enter interface view.
3. Enable the IGMP SSM
mapping feature.
To ensure SSM service for all hosts on a subnet, regardless of the IGMP version running on the hosts,
enable IGMPv3 on the interface that forwards multicast traffic onto the subnet.

Configuring SSM mappings

By performing this configuration multiple times, you can map a multicast group to different multicast
sources.
To do...
1. Enter system view.
2. Enter public network
IGMP view or VPN
instance IGMP view.
3. Configure an IGMP SSM
mapping.
If IGMPv3 is enabled on a VLAN interface of a router that supports both IGMP snooping and IGMP, and
if a port in that VLAN is configured as a simulated host, the simulated host will send IGMPv3 reports even
if you did not specify a multicast source when configuring simulated joining with the igmp-snooping
host-join command. In this case, the corresponding multicast group will not be created based on the
configured IGMP SSM mappings. For more information about the igmp-snooping host-join command, see
IP Multicast Command Reference.

Configuring IGMP proxying

Prerequisites

Before you configure the IGMP proxying feature, complete the following tasks:
Configure any unicast routing protocol so that all devices in the domain are interoperable at the
•
network layer
Enable IP multicast routing
•

Enabling IGMP proxying

Enable IGMP proxying on the interface in the direction toward the root of the multicast forwarding tree to
make the router serve as an IGMP proxy.
Use the command...
system-view
interface interface-type
interface-number
igmp ssm-mapping enable
Use the command...
system-view
igmp [ vpn-instance vpn-instance-name ]
ssm-mapping group-address { mask |
mask-length } source-address
79
Remarks
—
—
Required.
Disabled by default.
Remarks
—
—
Required.
No IGMP mappings are
configured by default.