ZyXEL Communications VES-1616, Поддержка заметок

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ZyXEL VES-1616/24FA-5x Series Support Notes
All contents copyright 2008 ZyXEL Communications Corporation. 67
VES-1616FA-54(config)#
igmp-snooping
3. Display the IGMP Status
In the exec mode of CLI
VES-1616FA-54#
show multicast
4. Display the IGMP snooping Status
In the exec mode of CLI
VES-1616FA-54#
show igmp-snooping
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Note:
One thing needs to be mentioned is that in the IGMP router, we do not need
to enable IGMP snooping function.
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Overview of MVR
MVR refers to Multicast VLAN Registration that enables a media server to
transmit multicast stream in a single multicast VLAN while clients receiving
multicast VLAN stream can reside in different VLANs. Clients in different VLANs
intending to join or leave the multicast group simply send the IGMP Join/leave
message to a receiver port. The receiver port belonging to one of the multicast
groups can receive multicast stream from media server. In the Figure 1, without
support of MVR, the Multicast stream from the media server and the subscriber
must reside in the same VLAN. For each VLAN, A media server is required to
transmit multicast stream once and totally, media server transmits 6 times. In the
Figure 2, on the contrary, with MVR, a media server is required to transmit
multicast traffic to clients in different VLANs at once.