Multicast

In computer networking, multicast is the delivery of a message or information to a group of destination computers simultaneously in a single transmission from the source. Copies are automatically created in other network elements, such as routers, but only when the topology of the network requires it.

Multicast is most commonly implemented in IP multicast, which is often employed in Internet Protocol (IP) applications of streaming media and Internet television. In IP multicast the implementation of the multicast concept occurs at the IP routing level, where routers create optimal distribution paths for datagrams sent to a multicast destination address.

At the Data Link Layer, multicast describes one-to-many distribution such as Ethernet multicast addressing, Asynchronous Transfer Mode (ATM) point-to-multipoint virtual circuits (P2MP) or Infiniband multicast.

Read more about Multicast:  IP Multicast, Other Multicast Technologies

Other articles related to "multicast":

SMART Multicast - Addressing
... Multicast A multicast address is associated with a group of interested receivers ... RFC 3171, addresses 224.0.0.0 to 239.255.255.255 are designated as multicast addresses ... Anycast Like broadcast and multicast, anycast is a one-to-many routing topology ...
Other Multicast Technologies
... As of 2006, most effort at scaling multicast up to large networks have concentrated on the simpler case of single-source multicast, which seems to be more computationally tractable ... large number of trees unworkable using IP multicast ... been demonstrated that would allow the IP multicast model to scale to millions of senders and millions of multicast groups and, thus, it is not yet possible to make fully general ...
SMART Multicast
... SMART Multicast is an experimental method of Secure Reliable IP Multicast ... See the article on multicast for a general discussion of this subject - this article is specifically about SMART IP Multicast ...
Reliable Multicast - Existing or Proposed Protocols
... Pragmatic General Multicast (PGM) (Mesongo)'s Rapid Messaging Framework (RMF) Tibco Software's TRDP (part of RV) ... LBT-RM protocol (part of LBM/UME) PrismTech's OpenSplice DDS reliable real-time multicast protocol DDSI a standard high performance reliable multicast protocol RTI's reliable multicast ...
SMART Multicast - See Also
... dense multicast sparse multicast source-specific multicast core-based trees Multicast address Multicast ...