Igmp Configuration; Enable Multicast; Configure The Igmp Version - Huawei Quidway S3500 Series Operation Manual

Operation Manual - Multicast
Quidway S3500 Series Ethernet Switches
II. Leaving group mechanism
In IGMP Version 1, hosts leave the multicast group quietly without informing the
multicast router. In this case, the multicast router can only depend on the timeout of the
response time of the multicast group to confirm that hosts leave the group. In Version 2,
when a host is intended to leave, it will send a leave group message if it is the host who
responds to the latest membership query message.
III. Specific group query
In IGMP Version 1, a query of a multicast router is targeted at all the multicast groups
on the network segment, which is known as General Query.
In IGMP Version 2, Group-Specific Query is added besides general query. The
destination IP address of the query packet is the IP address of the multicast group. The
group address domain in the packet is also the IP address of the multicast group. This
prevents the hosts of members of other multicast groups from sending response
messages.
IV. Max response time
The Max Response Time is added in IGMP Version 2. It is used to dynamically adjust
the allowed maximum time for a host to response to the membership query message.

5.2 IGMP Configuration

IGMP configuration includes:

Enable multicast

Configure the IGMP version

Configure a router to join specified multicast group
Control the access to IP multicast groups
Configure the IGMP query message interval
Configure the IGMP querier present timer
Configure the maximum query response time
To enable multicast is mandatory for IGMP configuration and the others are optional.
5.2.1 Enable Multicast
After multicast is enabled, IGMP will automatically run on all interfaces.
For details, refer to "Common Multicast Configuration".
5.2.2 Configure the IGMP Version
Perform the following configuration in interface view.
Huawei Technologies Proprietary
5-2
Chapter 5 IGMP Configuration