Operation Manual – MulticastH3C S5500-EI Series Ethernet Switches Chapter 2 IGMP Snooping Configuration2-10z Enable IGMP Snooping in the VLAN or enable IGMP on the desired VLANinterfacez Configure the corresponding port groups.Before configuring IGMP Snooping port functions, prepare the following data:z Aging time of router ports,z Aging timer of member ports, andz Multicast group and multicast source addresses2.4.2 Configuring Aging Timers for Dynamic PortsIf the switch receives no IGMP general queries or PIM hello messages on a dynamicrouter port, the switch removes the port from the router port list when the aging timer ofthe port expires.If the switch receives no IGMP reports for a multicast group on a dynamic member port,the switch removes the port from the outgoing port list of the forwarding table entry forthat multicast group when the aging timer of the port for that group expires.If multicast group memberships change frequently, you can set a relatively small valuefor the member port aging timer, and vice versa.I. Configuring aging timers for dynamic ports globallyFollow these steps to configure aging timers for dynamic ports globally:To do... Use the command... RemarksEnter system view system-view —Enter IGMP Snoopingview igmp-snooping —Configure router portaging timerouter-aging-timeintervalOptional105 seconds by defaultConfigure member portaging time host-aging-time interval Optional260 seconds by defaultII. Configuring aging timers for dynamic ports in a VLANFollow these steps to configure aging timers for dynamic ports in a VLAN:To do... Use the command... RemarksEnter system view system-view —Enter VLAN view vlan vlan-id —Configure router portaging timeigmp-snoopingrouter-aging-timeintervalOptional105 seconds by default
