The multicast routing device must find multicast sources on the network, Multicast routing devices distribute the multicast traffic across the network from In IP multicast, the source and destination are almost always hosts and not routingĭevices. Send the copies out on multiple output interfaces. Multicast routing devices replicate packets received on one input interface and The topology of the network from the unicast or multicast perspective to avoid routing traffic Sources (servers), the routing devices between source and destination must be able to determine On an IP network, because destinations (clients) do not often communicate directly with Need to receive the information from a particular source receive the traffic stream. Method of traffic distribution, meaning only the destinations that explicitly indicate their Multicast is a “one source, many destinations” Multicast traffic lies between the extremes of unicast (one source, one destination)Īnd broadcast (one source, all destinations). Broadcasting is notįeasible on the Internet because of the enormous amount of unnecessary information that wouldĬonstantly arrive at each end user's device, the complexities and impact of scrambling, and Which is the main reason that some channels’ content is scrambled. Network is a cable television (CATV) system, the source signal reaches all possible destinations, Television networks use broadcasting to distribute video and audio. Broadcasting is the easiest way to make sure traffic Traffic is still the most common form of information transfer on networks.īroadcast traffic flows from a single source to all possible destinations reachable With unicast traffic, many streams of IP packets that travel across networks flow fromĪ single source, such as a website server, to a single destination such as a client PC. RFC 1112, supports both the any-source multicast (ASM) many-to-many model and the source-specific One-to-many multicast and therefore requires no unique protocol. Many-to-many is a service model that repeatedly employs Online gaming or videoconferencing, where there are many sources for the same receiver and This list does not include a special category for many-to-many applications, such as
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |