3com WX3000 Manuel D’Utilisation

 

2-6 

z 

Before configuring related IGMP Snooping functions, you must enable IGMP Snooping in the 

specified VLAN. 

z 

Different multicast group addresses should be configured for different multicast sources because 

IGMPv3 Snooping cannot distinguish multicast data from different sources to the same multicast 

group.  

 

This section describes how to configure the aging timer of the router port, the aging timer of the 

multicast member ports, and the query response timer. 

Follow these steps to configure timers: 

Enter system view  

— 

Configure the aging timer of the 
router port 

igmp-snooping 
router-aging-time seconds 

Optional 

By default, the aging time of the 
router port is 105 seconds. 

Configure the query response 
timer 

igmp-snooping 
max-response-time seconds 

Optional 

By default, the query response 
timeout time is 10 seconds. 

Configure the aging timer of the 
multicast member port 

igmp-snooping 
host-aging-time seconds 

Optional 

By default, the aging time of 
multicast member ports is 260 
seconds 

 

With fast leave processing enabled, when the device receives an IGMP leave message on a port, the 

device directly removes that port from the forwarding table entry for the specific group. If only one host 

is attached to the port, enable fast leave processing to improve bandwidth management. 

Follow these steps to enable fast leave processing in system view: 

Enter system view  

system-view — 

Enable fast leave processing  

igmp-snooping fast-leave 
[ vlan vlan-list ] 

Required 

By default, the fast leave 
processing feature is disabled.