Command Manual – MulticastH3C S7500E Series Ethernet Switches Chapter 1 IGMP Snooping Configuration Commands1-13z This command works on IGMP Snooping–enabled VLANs and VLANs with IGMPenabled on the corresponding VLAN interfaces.z If you do not specify any VLAN in Ethernet interface view, the command will takeeffect on the port no matter which VLAN the port belongs to; if you specify a VLANor multiple VLANs, the command will take effect on the port only if the port belongsto the specified VLAN(s).z If you do not specify any VLAN in port group view, the command will take effect onall the ports in this group no matter which VLANs these port belong to; if youspecify a VLAN or multiple VLANs, the command will take effect on those ports inthis group that belong to the specified VLAN(s).z If the specified ACL does not exist or the ACL rule is null, all multicast groups willbe filtered out.z You can configure different ACL rules for a port in different VLANs; for a givenVLAN, a newly configured ACL rule will override the existing one.Related commands: group-policy.Examples# Configure ACL 2000 as the multicast group filter on Ethernet 2/0/1, which belongs toVLAN 2. system-view[Sysname] interface ethernet 2/0/1[Sysname-Ethernet2/0/1] igmp-snooping group-policy 2000 vlan 21.1.14 igmp-snooping host-aging-timeSyntaxigmp-snooping host-aging-time intervalundo igmp-snooping host-aging-timeViewVLAN viewParametersinterval: Member port aging time, in units of seconds. The effective range is 200 to1,000.DescriptionUse the igmp-snooping host-aging-time command to configure the aging time ofgroup member ports in the current VLAN.Use the undo igmp-snooping host-aging-time command to restore the defaultsetting.