Enabling Mld Snooping; Establishing The Configuration Task - Huawei Quidway S2700 Series Configuration Manual

Quidway S2700 Series Ethernet Switches
Configuration Guide - Multicast
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Prompt Leave of Member Interfaces
When an interface of the S2700 receives an MLD Leave message of a multicast group, the
S2700 deletes the forwarding entry of the multicast group corresponding to the interface from
the forwarding table instead of sending Query messages. This process is called prompt leave.
When an interface is connected to only one host, you can enable the prompt leave function so
that the bandwidth can be released immediately after the host leaves the multicast group.

4.3 Enabling MLD Snooping

This section describes how to enable MLD snooping, add an interface to a multicast group
statically, and configure an interface as a static router interface.

4.3.1 Establishing the Configuration Task

Applicable Environment
By default, MLD snooping is disabled on the S2700. Therefore, you need to enable MLD
snooping on the S2700 globally.
After MLD snooping is enabled on the S2700 globally, MLD snooping remains disabled in a
VLAN by default. Therefore, you also need to enable MLD snooping in the VLAN.
If the hosts connected to an interface need to receive the multicast data of a certain group, you
can add the interface statically to the multicast group. The interface is called a static member
interface. The static member interface never ages.
On a network with stable topology, you can set the router interface on the S2700 as a static router
interface. The static router interface never ages, and can be deleted only through a certain
command.
Pre-configuration Tasks
Before enabling MLD snooping, complete the following tasks:
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Data Preparation
To enable MLD snooping, you need the following data.
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Issue 01 (2011-07-15)
Interval for sending the MLD Last Member Query messages. This timer helps the S2700
adapt to the change of load on the network.
Duration for suppressing the Report messages. This timer saves network bandwidth and
reduces loads on the network.
Creating a VLAN
Adding interfaces to the VLAN
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Copyright © Huawei Technologies Co., Ltd.
4 MLD Snooping Configuration
Data
ID of the VLAN where MLD snooping needs
to be enabled
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