Huawei Quidway s3700 series Configuration Manual page 26

Quidway S3700 Series Ethernet Switches
Configuration Guide - Multicast
dynamic. If a dynamic member interface has not received any IGMP Report messages for a
multicast group before its aging time expires, the device deletes this member interface from the
downstream interface list of the multicast forwarding entry for this group.
If each interface in a VLAN connects only one receiver host, you can enable prompt leave for
interfaces in the VLAN. After prompt leave is enabled and if the device receives an IGMP Leave
from a member interface, the device immediately deletes the forwarding entry related to this
interface from the multicast forwarding table.
If hosts connected to an interface want to steadily receive multicast data for a multicast group
or a source-specific multicast group, statically add the interface to the multicast group or source-
specific multicast group. The interface is then a static member interface and does not age.
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
vlan vlan-id
The VLAN view is displayed.
Step 3 Set the aging time of dynamic member interfaces. For details, see
IGMP Snooping
If multicast group members frequently change, set the aging time of dynamic member interfaces
to a smaller value.
Step 4 Run:
igmp-snooping prompt-leave [ group-policy acl-number ]
Prompt leave is enabled for interfaces in the VLAN.
By default, prompt leave is disabled for interfaces.
If group-policy acl-number is not specified, the S3700 immediately deletes the forwarding entry
corresponding to a member interface after receiving the Leave message from the interface.
Step 5 Run:
quit
Return to the system view.
Step 6 (Optional) Configuring static member interfaces
1.
2.
Issue 01 (2011-10-26)
Querier.
NOTE
On the S3700, the permit rule is applicable to all multicast groups by default. To configure prompt leave
for a specified multicast group, you need to use the rule deny source any command.
Run:
interface interface-type interface-number
The interface view is displayed.
The interface can be a GE, Ethernet, or Eth-Trunk interface on the LAN side.
(Optional) Run:
undo igmp-snooping learning vlan { vlan-id { [ &<1–10> ][to vlan-id ] | all } }
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
2 IGMP Snooping Configuration
2.3.5 (Optional) Configuring
13