H3C S7500E Series Command Manual page 729

Command Manual – Multicast
H3C S7500E Series Ethernet Switches
Use the undo group-policy command to remove the configured global multicast group
filter.
By default, no global multicast group filter is configured, namely a host can join any
multicast group.
Note that:
This command works on IGMP Snooping–enabled VLANs and VLANs with IGMP
enabled on the corresponding VLAN interfaces.
If you do not specify any VLAN, the command will take effect for all VLANs; if you
specify a VLAN or multiple VLANs, the command will take effect for the specified
VLAN(s) only.
If the specified ACL does not exist or the ACL rule is null, all multicast groups will
be filtered out.
You can configure different ACL rules for a port in different VLANs; for a given
VLAN, a newly configured ACL rule will override the existing one.
Related commands: igmp-snooping group-policy.
Examples
# Configure ACL 2000 as the multicast group filter in VLAN 2.
<Sysname> system-view
[Sysname] igmp-snooping
[Sysname-igmp-snooping] group-policy 2000 vlan 2
1.1.6 host-aging-time
Syntax
host-aging-time interval
undo host-aging-time
View
IGMP-Snooping view
Parameters
interval: Member port aging time, in units of seconds. The effective range is 200 to
1,000.
Description
Use the host-aging-time command to configure the aging time of group member ports
globally.
Use the undo host-aging-time command to restore the default setting.
By default, the aging time of group member ports is 260 seconds.
Chapter 1 IGMP Snooping Configuration Commands
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