Setting Up The Igmp Snooping/Igmp Filtering - ZyXEL Communications IES-5000 Support Notes

Setting up the IGMP Snooping/IGMP Filtering

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.
IES-5000(ALC/SLC)
Video Client
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Internet
Video
Server
Ethernet Port
Port 1
ADSL/SHDSL
CPE
IES-5000 Support Notes
IGMP
Router
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