Optional) Setting The Maximum Number Of Multicast Groups That Hosts Attached To An Interface Can Join - Huawei Quidway s3700 series Configuration Manual

Quidway S3700 Series Ethernet Switches
Configuration Guide - Multicast
By default, the robustness variable is 2.
Step 6 Run:
igmp-snooping max-response-time max-response-time
The maximum response time of IGMP Query messages is set.
By default, the maximum response time of IGMP Query messages is 10 seconds.
Step 7 (Optional) Run:
igmp-snooping lastmember-queryinterval lastmember-queryinterval
The interval at which the querier sends Last Member Query (IGMP Group-Specific Query)
messages is set.
By default, the interval at which IGMP Group-Specific Query messages are sent is 1 second.
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2.3.6 (Optional) Setting the Maximum Number of Multicast Groups
that Hosts Attached to an Interface Can Join
Context
To limit the number of multicast programs available to users and multicast data traffic on an
interface, set the maximum number of multicast groups that users can join.
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
interface interface-type interface-number
The interface view is displayed.
The interface can be an Ethernet interface, a GE interface, or an Eth-Trunk interface.
Issue 01 (2011-10-26)
NOTE
The maximum response time must be shorter than the interval at which IGMP General Query messages
are sent.
After receiving IGMP Report messages from hosts, the S3700 sets the aging time of member interfaces
based on the following formula: IGMP robustness variable x Interval at which IGMP General Query
messages are sent + Maximum response time of IGMP Query messages. If all the parameters are of the
default value, the aging time of member interfaces defaults to 130 seconds.
NOTE
After receiving IGMP Leave messages from hosts, the S3700 sets the aging time of member interfaces by
using the following formula: Interval at which IGMP Group-Specific Query messages are sent x IGMP
robustness variable.
IGMPv1 hosts do not send Leave messages when leaving multicast groups. Therefore, the igmp-snooping
lastmember-queryinterval command is valid only when the IGMP snooping version is set to 2 in the
VLAN.
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