l Run the display mld control-message counters [ interface interface-type interface-
number ] [ message-type { query | report } ] command in any view to check the statistics
of MLD messages received by interfaces.
----End
10.8.3 Debugging MLD
When an MLD running fault occurs, run the debugging commands in the user view and locate
the fault based on the debugging information. Debugging affects the performance of the system.
So, after debugging, disable it immediately.
Context
CAUTION
Debugging affects the performance of the system. After debugging, you need to run the undo
debugging all command to disable the debugging immediately.
When an MLD fault occurs, run the following debugging commands in the user view to locate
the fault.
For the explanation of debugging commands, refer to the Quidway S7700 Smart Routing Switch
Debugging Reference.
Procedure
l Run the debugging mld { all | done [ basic-acl6-number ] | event [ advanced-acl6-
number ] | query [ basic-acl6-number ] [ receive | send ] | report [ advanced-acl6-
number ] | timer } command in the user view to enable the debugging of MLD.
l Run the debugging mld ssm-mapping [ advanced-acl6-number ] command in the user
view to enable the debugging of SSM mapping.
----End
10.9 Configuration Example
Examples for configuring basic MLD functions and the MLD limit function in the multicast
network are provided.
10.9.1 Example for Configuring Basic MLD Functions
Networking Requirements
On the IPv6 network shown in Figure 10-1, unicast routes are normal. It is required to implement
multicast on the network to enable hosts to receive the Video on Demand (VoD) information.
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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