H3C IE4300 Command Reference Manual page 1519

You can configure different ACLs for all ports in different VLANs. If you configure multiple ACLs for all
ports in the same VLAN, the most recent configuration takes effect.
Examples
# Configure a multicast group policy for VLAN 2 so that hosts in VLAN 2 can join only multicast group
225.1.1.1.
<Sysname> system-view
[Sysname] acl basic 2000
[Sysname-acl-ipv4-basic-2000] rule permit source 225.1.1.1 0
[Sysname-acl-ipv4-basic-2000] quit
[Sysname] igmp-snooping
[Sysname-igmp-snooping] group-policy 2000 vlan 2
Related commands
igmp-snooping group-policy
host-aging-time (IGMP-snooping view)
Use
host-aging-time
Use
undo host-aging-time
Syntax
host-aging-time seconds
undo host-aging-time
Default
The aging timer for dynamic member ports is 260 seconds.
Views
IGMP-snooping view
Predefined user roles
network-admin
Parameters
: Specifies an aging timer for dynamic member ports, in the range of 1 to 8097894
seconds
seconds.
Usage guidelines
You can set the timer globally for all VLANs in IGMP-snooping view or for a VLAN in VLAN view. For
a VLAN, the VLAN-specific configuration takes priority over the global configuration.
To avoid mistakenly deleting multicast group members, set the aging timer for dynamic member
ports to be greater than the value calculated by using the following formula:
IGMP general query interval
[
As a best practice, set the aging timer of dynamic member ports to the value calculated by using the
following formula:
IGMP general query interval
[
Examples
# Set the global aging timer for dynamic member ports to 300 seconds.
<Sysname> system-view
[Sysname] igmp-snooping
to set the aging timer for dynamic member ports globally.
to restore the default.
+ maximum response time for IGMP general queries
] [
× 2 + maximum response time for IGMP general queries
] [
23
]
]