Command Manual – Multicast
H3C S7500E Series Ethernet Switches Chapter 1 IGMP Snooping Configuration Commands
1-6
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:
z This command works on IGMP Snooping–enabled VLANs and VLANs with IGMP
enabled on the corresponding VLAN interfaces.
z 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.
z If the specified ACL does not exist or the ACL rule is null, all multicast groups will
be filtered out.
z 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.
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