Huawei quidway s7700 - Checking the Configuration; Configuring SSM Mapping; Establishing the Configuration Task

10.5.3 Checking the Configuration
After MLD query control is configured, you can check MLD configurations and running
information on the interface to ensure normal running of MLD.
Procedure
l Run the display mld interface [ interface-type interface-number | up | down ]
[ verbose ] command to check the MLD configuration and running information on an
interface.
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10.6 Configuring SSM Mapping
In the network segment where multicast services are provided in the SSM mode, the interface
of the multicast device runs MLDv2 while certain hosts can run only MLDv1 due to various
limitations. To ensure that the multicast device running a later IGMP version is compatible with
the hosts running an earlier IGMP version and provides SSM services for these hosts, you need
to configure static SSM mapping on the multicast device.
10.6.1 Establishing the Configuration Task
Before configuring SSM mapping, familiarize yourself with the applicable environment, pre-
configuration tasks, and required data. This can help you complete the configuration task quickly
and accurately.
Applicable Environment
In the SSM host network segment, the switch can know the specific source when a host joins a
group. The SSM solutions are as follows:
l Hosts and switchs run MLDv2. When a host joins a group, the host specifies the source
from which the host wants to receive data.
l If some hosts in the network segment can run only MLDv1, the hosts cannot specify the
sources from which they want to receive data when joining related groups. In this case, you
need to configure SSM mapping and static mapping rules on the switch. As a result, the (*,
G) information carried in the Report message is mapped to the (G, INCLUDE, (S1, S2, ...))
information.
Pre-configuration Tasks
Before configuring SSM mapping, complete the following tasks:
l Configuring a unicast routing protocol to interconnect the entire multicast domain
l Configuring Basic MLD Functions
Data Preparation
To configure SSM mapping, you need the following data.
Quidway S7700 Smart Routing Switch
Configuration Guide - Multicast 10 MLD Configuration
Issue 01 (2011-07-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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