(Optional) Configuring an SSM Group Policy

Context

By default, Source-Specific Multicast (SSM) group addresses range from 232.0.0.0 to 232.255.255.255. If a user joins a multicast group with an IP address out of this range, configure an SSM group policy in the VLAN to add the group address to the SSM group address range. The SSM group policy must be used together with an ACL. For details on how to configure an ACL, see ACL Configuration in the S2720, S5700, and S6700 V200R019C10 Configuration Guide - Security.

By default, the ACL applied to an SSM group policy denies all multicast groups. To exclude specific group addresses from the SSM group address range, use a rule permit source any rule with deny rules in the ACL.

Procedure

Run system-view
The system view is displayed.
Run vlan vlan-id
The VLAN view is displayed.
Run igmp-snooping ssm-policy basic-acl-number
An SSM group policy is configured.

After you configure an SSM group policy, the multicast groups specified in the SSM policy are treated as SSM groups.