3com 3CDSG8 用户指南

IGMP Snooping 

 

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•  Router Ports - Set if ports are conneting to the IGMP administrative routers.  
•  Unregistered IPMC Flooding enabled - Set forwarding mode for unregistered (not-

joined) IP multicast traffic. The traffic will flood when enabled, and forward to router-
ports only when disabled.  

If the network has adequate performance and security for your current needs, it is 
recommended that you leave the VLAN settings in the default configuration. The default 
configuration is as follows: 

•  All ports are members of VLAN 1  
•  The switch management interface is on VLAN 1 (this cannot be changed)  
•  All ports have a Port VLAN ID (PVID) of 1  
•  All ports can send and receive both VLAN-tagged and untagged packets (i.e. they are 

"hybrid" ports)  

The table has one row for each port and four columns. The columns are: 

•  VLAN ID - The VLAN ID. It can not be changed.  
•  IGMP Snooping Enabled -When enabled, the port will monitor network traffic to determine 

which hosts want to receive the multicast traffic.  

•  IGMP Querying Enabled - When enabled, the port can serve as the Querier, which is 

responsible for asking hosts if they want to receive multicast traffic.  

 

This page shows IGMPSNOOP instances and port states. There is one tables on this page:  

•  IGMPSNOOP Status - Show the IGMPSNOOP statistics for the whole switch.