Limiting Igmp Groups On The Interface; Configuring A Router To Join Specified Multicast Group - Huawei Quidway S6500 Series Operation Manual

Operation Manual - Multicast Protocol
Quidway S6500 Series Ethernet Switches
Table 5-7 Configuring the maximum query response time for IGMP
Configure the maximum query response time
for IGMP
Restore the default value
The shorter the max response time is, the faster the router interdicts a group. Practically,
the response time is an arbitrary value within configurable range (from 1 to 25 seconds),
which by default is 10 seconds.

5.2.8 Limiting IGMP Groups on the Interface

If there is no limit to the number of IGMP groups added on a router interface or a router,
the router memory may be exhausted, which may cause router failure.
You can set number limit for the IGMP groups added on the interface, but not the
number limit for the IGMP groups added in the router, which is defined by the system.
Please perform the following configurations in interface view.
Table 5-8 Limiting IGMP groups on the interface
Limit IGMP groups on the interface
Restore the default configuration
By default, the maximum number of IGMP groups on an interface is 1024
If the number of IGMP groups on an interface has exceeded the specified value during
configuration, no IGMP group will be deleted.

5.2.9 Configuring a Router to Join Specified Multicast Group

Usually, the host operating IGMP will respond to IGMP query packet of the multicast
router. In case of response failure, the multicast router will consider that there is no
multicast member on this network segment and will cancel the corresponding path.
Configuring one interface of the router as multicast member can avoid such problem.
When the interface receives IGMP query packet, the router will respond, thus ensuring
that the network segment where the interface is connected can normally receive
multicast packets.
For an ethernet switch, you can configure a port in a VLAN interface to join a multicast
group.
Perform the following configuration in corresponding view.
Operation
Operation
Huawei Technologies Proprietary
5-6
Chapter 5 IGMP Configuration
Command
igmp max-response-time
seconds
undo igmp max-response-time
Command
igmp group-limit limit
undo igmp group-limit