The VLAN view is displayed.
Step 3 Run:
igmp-snooping version 3
The version number of IGMP is set to 3.
The default version number of IGMP snooping is 2, but IGMPv2 version does not support SSM
mapping.
Step 4 Run:
igmp-snooping ssm-mapping enable
SSM mapping is enabled in the VLAN.
By default, SSM mapping is disabled.
Step 5 Run:
igmp-snooping ssm-mapping ip-group-address { ip-group-mask | mask-length } ip-
source-address
The mapping between a multicast group address and a multicast source is configured. In the
SSM mapping table, a multicast group can be mapped to up to 64 multicast sources.
The specified multicast group address must be in the range of multicast group addresses specified
by the SSM policy. For the configuration of the SSM policy, see 1.6.9 (Optional) Configuring
an SSM Group Policy.
----End
1.6.11 (Optional) Configuring Prompt Leave for Interfaces
Prerequisite
A basic ACL is configured to specify the IP multicast groups that hosts can leave.
For the configuration of the ACL, see ACL Configuration in the Quidway S9300 Terabit
Routing Switch Configuration Guide - Security.
Context
When an interface on the S9300 receives an IGMP Leave message from a host, the S9300 deletes
the forwarding entry that corresponds to the interface from the multicast forwarding table
immediately without waiting for the aging of the forwarding entry. This is called prompt leave.
When each interface in a VLAN is connected to only one host, you can enable prompt leave for
interfaces in the VLAN.
NOTE
Prompt leave takes effect for interfaces in a VLAN only when the S9300 can process IGMPv2 or IGMPv3
messages.
Procedure
Step 1 Run:
system-view
1 Layer 2 Multicast Configuration
Quidway S9300 Terabit Routing Switch
Configuration Guide - Multicast
1-20 Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Issue 01 (2009-07-28)
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