Optional) Configuring Multicast Policies; Optional) Configuring Prompt Leave For Interfaces - Huawei Quidway S2700 Series Configuration Manual

Quidway S2700 Series Ethernet Switches
Configuration Guide - Multicast

1.3.8 (Optional) Configuring Multicast Policies

Context
A multicast group policy in a VLAN is used to add the hosts in the VLAN to the specified
multicast groups and limit the number of multicast groups that a host can join.
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
vlan vlan-id
The VLAN view is displayed.
Step 3 Run:
igmp-snooping group-policy acl-number [ version number ]
A multicast group policy is configured for the VLAN. Interfaces in the VLAN can dynamically
join only the multicast group that matches the specified ACL rules.
By default, no multicast group policy is available in a VLAN. That is, hosts in a VLAN can join
any multicast group. If the IGMP version is not specified for a multicast policy, the S2700 applies
the policy to all IGMP messages regardless of their versions.
----End

1.3.9 (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 S2700 Series Ethernet
Switches Configuration Guide - Security.
Context
When an interface on the S2700 receives an IGMP Leave message from a host, the S2700 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.
Issue 01 (2011-07-15)
NOTE
When you create an ACL for a multicast group policy of a VLAN, the configuration takes effect only if
you select deny in the rule command. That is, a multicast group policy can only prohibit hosts in a VLAN
from accessing all or specified multicast groups.
NOTE
If an advanced ACL is referenced by the group-policy, the ACL applies to the multicast group regardless
of the protocol type specified in the ACL.
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