H3C Technologies H3C S10500 Series Switches - Manual (Page 122)

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To do... Use the command... Remarks
Configure a multicast group filter
igmp group-policy acl-number
[ version-number ]
Required
By default, no multicast group filter
is configured on an interface, and
hosts on an interface can join any
valid multicast group.
Setting the maximum number of multicast groups that an
interface can join
Follow these steps to configure the maximum number of multicast groups an interface can join:
To do… Use the command… Remarks
Enter system view system-view —
Enter interface view
interface interface-type
interface-number
—
Configure the maximum number of
multicast groups that the interface
can join
igmp group-limit limit
Required
2000 by default.
NOTE:
This configuration takes effect for dynamically joined multicast groups but not for statically configured
multicast groups.
Adjusting IGMP performance
NOTE:
For the configuration tasks described in this section:
• The configuration in IGMP view is effective on all interfaces, whereas the configuration in interface view
is effective only on the current interface.
• If the same feature is configured in both IGMP view and interface view, the configuration in interface
view is given priority, regardless of the configuration sequence.
Configuration prerequisites
Before adjusting IGMP performance, complete the following tasks:
• Configure any unicast routing protocol so that all devices in the domain are interoperable at the
network layer
• Configure basic functions of IGMP
• Determine the startup query interval
• Determine the startup query count
• Determine the IGMP general query interval
• Determine the IGMP querier’s robustness variable