Protocol-Independent Multicast: Difference between revisions

Revision as of 19:47, 11 September 2017

Revision as of 09:15, 4 October 2017

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* In order to join a multicast group, G, a host conveys its membership information through the Internet Group Management Protocol ([[IGMP]]).

* The router''''''Bold text'''''''''Bold text'''''''''Bold text'''''''''Bold text'''''''''Bold text'''''''''Bold text'''''''''Bold text'''''''''Bold text'''''''''Bold text''''''Bold text'''''''''''''''''''''''''''''' then forwards data packets addressed to a multicast group G to only those interfaces on which explicit joins have been received.

* A Designated Router (DR) sends periodic Join/Prune messages toward a group-specific Rendezvous Point (RP) for each group for which it has active members.

** Note that one router will be automatically or statically designated as the rendezvous point (RP), and all routers must explicitly join through the RP.