IP multicast

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IP multicast

A one-to-many transmission of data over an IP network. It is used for a myriad of purposes including updating routers, announcing and discovering services and streaming media. IP multicast saves network bandwidth, because packets are transmitted as one stream over the backbone and only split apart to the target stations by the router at the end of the path. See mDNS and multicast.

Multicast Address Range
IP multicast packets are identified by using a destination address in a range from 224.0.0.0 to 224.0.0.255. The addresses within the range are reserved for specific purposes. For example, 224.0.0.1 means all nodes on the subnet, while 224.0.0.2 means all routers on the subnet. The address 224.0.0.251 is reserved for multicast DNS (mDNS), which is used to query devices for their capabilities. For the complete list, visit www.iana.org/assignments/multicast-addresses. See DVMRP, MOSPF and PIM.

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IP multicast address
Mbone

mDNS
multicast IP

IP Multicast has been hailed as the catalyst for ushering in a new generation of Internet-based services such as video on demand, broadcast video, and collaborative groupware applications.

The Challenge Of Implementing IP Multicast by Lazar, Irwin / Computer Technology Review

This implementation follows a November 2004 announcement of the companies' intention to jointly develop the first nationwide IP Multicast Network across America.

Endavo and WV Fiber Launch Nationwide IP Multicast Network for ... by Business Wire

provides managed IP delivery solutions for digital entertainment, data and voice products over a national IP Multicast fiber network and over any last-mile broadband medium (fiber, copper, wireless).

Endavo Unveils EnCast; Broadcast Platform Provides Low-cost ... by Business Wire

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