Do as follows on the switch connected to hosts:
NOTE
The configuration involves the following cases:
l Global configuration: It is valid on all interfaces.
l Configuration on an interface: The configuration on an interface takes precedence over the global
configuration. If the configuration on an interface is not done, the global configuration is used.
Procedure
l Global Configuration
1. Run:
system-view
The system view is displayed.
2. Run:
mld
The MLD view is displayed.
3. Run:
timer query interval
The interval for sending Query messages is set.
By default, the interval for sending Query messages is 125 seconds.
4. Run:
robust-count robust-value
The MLD robustness variable is set.
By default, the MLD robustness variable is 2.
– When a switch starts, the switch sends general query messages for the number of
robust-value times. The sending interval is 1/4 of the interval for sending MLD
general query messages.
– When a switch receives a Leave message, the switch sends MLD last listener query
messages for the number of robust-value times.
The greater the robustness variable is, the longer the timeout period of the group is.
5. Run:
max-response-time interval
The maximum response time of the MLD Query message is set.
By default, the maximum MLD response time is 10 seconds.
6. Run:
timer other-querier-present interval
The interval for the Keepalive period of the other MLD queriers is set.
By default, the formula used to calculate the Keepalive period of the other queriers
is: the Keepalive period of the other MLD queriers = robustness variable x the interval
for sending MLD general query messages + 1/2 x the MLD maximum response time.
When default values of robustness variable, the interval for sending MLD general
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.
366
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