multicast router
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... multicast traffic to ports where at least one
multicast router is connected. It must instead flood multicast
traffic to these ports ...
... IGMP.
In situations where multiple multicast routers are connected to a
switched backbone, IGMP ...
... groups are desired at each
of their ports. Multicast routers use RGMP to pass such information
to the switches ...
... router by other appropriate protocol packets or
dedicated IPv4 multicast router discovery mechanisms such as MRDISC
[11]. The manual configuration ...