multicastinggroup addressingInteractive Multicastmulticast channelmulticast communications protocolsmulticast groupMulticast Packet ReplicatorMulticast servicesmulticastsnetwork multicast
In computer networking, multicast is group communication where data transmission is addressed to a group of destination computers simultaneously.wikipedia
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Rendezvous hashing

Highest random weight hashing
One of the first applications of rendezvous hashing was to enable multicast clients on the Internet (in contexts such as the MBONE) to identify multicast rendezvous points in a distributed fashion.

Network socket

socketsocketsInternet socket
For example, a datagram socket can be used for connectionless communication, and a multicast socket can be used to send to multiple nodes.

Severe Tire Damage (band)

Severe Tire Damage
On June 24, 1993, the band was playing a gig at Xerox PARC while elsewhere in the building, scientists were discussing new technology (the MBone) for broadcasting on the Internet using multicasting.

This TV

On May 13, 2013, Weigel Broadcasting announced that it would be leaving the This TV partnership in order to focus on Movies!, a similar film-oriented multicast network that Weigel launched in partnership with Fox Television Stations in January 2013.


The Multicast MAnet Routing Protocol (MMARP) aims to provide multicast routing in Mobile Ad Hoc Networks (MANETs) taking into account interoperation with fixed IP networks with support of IGMP/MLD protocol.

Secure Real-time Transport Protocol

SRTP Secure Real-time Transport Protocol (SRTP)
The Secure Real-time Transport Protocol (SRTP) is a Real-time Transport Protocol (RTP) profile, intended to provide encryption, message authentication and integrity, and replay attack protection to the RTP data in both unicast and multicast applications.

SGI Dogfight

It represents landmarks in two key areas of Internet development: games and multicasting, and notable advancement in creating rendered virtual environments.


server-to-serverserver to serverbetween servers
Some of these protocols employ multicast strategies to efficiently deliver information to multiple servers at once.


UDP-based File Transfer Protocol
To accomplish this, UFTP multicasts the files to recipients via the User Datagram Protocol (UDP).


It is a specialized form of multicast addressing used by some routing protocols for mobile ad hoc networks.


The advantage of UDPcast over using other methods (nfs, ftp, whatever) is that UDPcast uses the User Datagram Protocol's multicast abilities: it won't take longer to install 15 machines than it would to install just 2.


Since 2001, Belnet provides IPv6 connectivity and multicast access to its customers.

Network Time Protocol

They can also use broadcasting or multicasting, where clients passively listen to time updates after an initial round-trip calibrating exchange.

Broadcasting (networking)

In networking this can be accomplished using broadcast or multicast.

Web Services Discovery

UDDIUniversal Description Discovery and IntegrationGreen Pages
Web services may also be discovered using multicast mechanisms like WS-Discovery, thus reducing the need for centralized registries in smaller networks.


Unlike 6over4 (an older similar protocol using IPv4 multicast), ISATAP uses IPv4 as a virtual nonbroadcast multiple-access network (NBMA) data link layer, so that it does not require the underlying IPv4 network infrastructure to support multicast.


Internet Protocol version 4IPv4 addressIP header
IPv4 reserves special address blocks for private networks (~18 million addresses) and multicast addresses (~270 million addresses).

Multicast Address Dynamic Client Allocation Protocol

The Multicast Address Dynamic Client Allocation Protocol (MADCAP) is a communication protocol that allows hosts to request multicast addresses from a server.

IEEE 802.1aq

Shortest Path BridgingShortest Path Bridging (SPB)802.1aq Shortest Path Bridging
Unicast, multicast, and broadcast are supported and all routing is on symmetric shortest paths.

Poietic Generator

The Poietic Generator runs on two types of architecture, a centralized network (for versions 1, 3, 4), or an ad hoc distributed network capable of implementing the multicast protocol (case version 2).

Service Location Protocol

SLPService Location Protocol (SLP)
Multicasting is used extensively by SLP, especially by devices that join a network and need to find other devices.


GNU Name System
The framework offers link encryption, peer discovery, resource allocation, communication over many transports (such as TCP, UDP, HTTP, HTTPS, WLAN and Bluetooth) and various basic peer-to-peer algorithms for routing, multicast and network size estimation.

Core-based trees

Core-based trees (CBT) is a proposal for making IP Multicast scalable by constructing a tree of routers.