ZyXEL Communications IES1248 Manual De Usuario

 

All contents copyright (c) 2006 ZyXEL Communications Corporation.   

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Without IGMP snooping multicast traffic is treated in the same manner as broadcast 

traffic, that is, it is forwarded to all port. With IGMP snooping, multicast traffic of a 

group is only forwarded to ports that have members of that group. IGMP snooping 

generates no additional network traffic, allowing you to significantly reduce multicast 

traffic passing through the IP-DSLAM. IGMP filtering is for allowing a port to join 

some specific IGMP groups. This can be applied in Video service providers. They can 

only open some specific channels (groups) to specific ports. 

 

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Ethernet Port

Port 1