Configuring Igmp Ssm Mapping; Configuration Prerequisites; Enabling Ssm Mapping; Configuring Ssm Mappings - H3C LS-3100-52P-OVS-H3 Operation Manual

To do...
Configure IGMP fast leave
processing
The IGMP fast leave processing configuration is effective only if the device is running IGMPv2 or
IGMPv3.

Configuring IGMP SSM Mapping

Due to some possible restrictions, some receiver hosts on an SSM network may run IGMPv1 or
IGMPv2. To provide SSM service support for these receiver hosts, you need to configure the IGMP
mapping feature on the last hop router.

Configuration Prerequisites

Before configuring the IGMP SSM mapping feature, complete the following tasks:
Configure any unicast routing protocol so that all devices in the domain are interoperable at the
network layer.
Configure basic functions of IGMP.

Enabling SSM Mapping

Follow these steps to enable the IGMP SSM mapping feature:
To do...
Enter system view
Enter interface view
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.
Use the command...
fast-leave [ group-policy
acl-number ]
Use the command...
system-view
interface interface-type
interface-number
igmp ssm-mapping enable
1-16
Remarks
Required
Disabled by default
Remarks
—
—
Required
Disabled by default