3com S7906E Instruccion De Instalación

 

1-11 

Enter IGMP snooping view 

— 

Configure the maximum 
number of global forwarding 
entries  

entry-limit limit 

Required 

1000 by default.  

 

If the number of existing entries is larger than the limit when you configure it, the device informs you to 

remove excessive entries. In this case, the device does not automatically remove any existing entries or 

create any new entries.  

 

Before configuring IGMP snooping port functions, complete the following tasks:  

z 

Enable IGMP snooping in the VLAN  

z 

Configure the corresponding port groups.  

Before configuring IGMP snooping port functions, prepare the following data:  

z 

Aging time of dynamic router ports,  

z 

Aging time of dynamic member ports, and  

z 

Multicast group and multicast source addresses  

If the switch receives no IGMP general queries or PIM hello messages on a dynamic router port, the 

switch removes the port from the router port list when the aging timer of the 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 for that 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 value for the dynamic 

member port aging timer, and vice versa.  

Follow these steps to configure aging timers for dynamic ports globally:  

Enter system view 

system-view 

— 

Enter IGMP snooping view 

— 

Configure dynamic router port 
aging time 

router-aging-time interval 

Optional 

105 seconds by default