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Configuring IGMP SSM mappings
This feature enables the device to provide SSM services for IGMPv1 or IGMPv2 hosts.
This feature does not process IGMPv3 messages. Enable IGMPv3 on the receiver-side interface to
ensure that IGMPv3 reports can be processed.
Configuration prerequisites
Before you configure IGMP SSM mappings, complete the following tasks:
•
Configure any unicast routing protocol so that all devices in the domain can interoperate at the
network layer.
•
Configure basic IGMP features.
Configuration procedure
To configure an IGMP SSM mapping:
Step
1.
Enter system view.
2.
Enter IGMP view.
3.
Configure an IGMP
SSM mapping.
Configuring IGMP proxying
This section describes how to configure IGMP proxying.
Configuration prerequisites
Before you configure the IGMP proxying feature, complete the following tasks:
1.
Configure a unicast routing protocol so that all devices in the domain can interoperate at the
network layer.
2.
Determine the router interfaces and host interfaces based on the network topology.
3.
Enable IGMP on the router interfaces.
Enabling IGMP proxying
When you enable IGMP proxying, follow these restrictions and guidelines:
•
You must enable IGMP proxying on the receiver-side interfaces.
•
On an interface enabled with IGMP proxying, only the igmp version command takes effect and
other IGMP commands do not take effect.
•
If you enable both IGMP proxying and a multicast routing protocol (such as PIM or MSDP) on
the same device, the multicast routing protocol does not take effect.
In IGMPv1, the DR is elected by PIM and acts as the IGMP querier. Because PIM does not take
effect on a proxy device, a router interface running IGMPv1 cannot be elected as the DR. To
ensure that the downstream receiver hosts on the router interface can receive multicast data,
Command
system-view
igmp [ vpn-instance vpn-instance-name ]
ssm-mapping source-address ipv4-acl-number
102
Remarks
N/A
N/A
By default, no IGMP SSM
mappings exist.
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Troubleshooting
