Configuring Igmp Ssm Mapping - HP A8800 Configuration Manual

Configuring IGMP SSM mapping

Due to some possible restrictions, some receiver hosts on an SSM network might run IGMPv1 or IGMPv2.
To provide SSM service support for these receiver hosts, configure the IGMP mapping feature on the last
hop router.
Configuration prerequisites
Before you configure 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
Step
1. Enter system view.
2. Enter interface view.
3. Enable the IGMP SSM
mapping feature.
NOTE:
To provide 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.
If IGMPv3 is enabled on a VLAN interface, 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 you
configure 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.
To configure an IGMP SSM mapping:
Step
1. Enter system view.
2. Enter public network
IGMP view or VPN
instance IGMP view.
Command
system-view
interface interface-type
interface-number
igmp ssm-mapping enable
Command
system-view
igmp [ vpn-instance vpn-instance-name ]
98
Remarks
N/A
N/A
Disabled by default.
Remarks
N/A
N/A