IP multicast


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IP multicast

A one-to-many transmission of data over an IP network. It is used for myriad 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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References in periodicals archive ?
IP multicast enables the efficient delivery of video content and broadcast television services across DSL access infrastructures.
"Our video steaming software transforms ordinary PCs into video-on-demand and IP multicast servers," explained Monsong Chen, president of InfoValue Computing.
ARK CEO Vern Fotheringham added, "The most exciting thing about broadcast 5G is our now-demonstrated ability to simulcasting content across a nationwide IP multicast network that enables virtually unlimited OTT video and IP data delivery directly to consumers.
Several times over the years at Streaming Media I've been given free rein to indulge myself writing about my favorite of all topics in the streaming space: IP multicast.
The IP multicast is an efficient protocol to delivering group traffic in a group-based application by requiring a sender to transmit data only once to many receivers along a multicast distribution tree.
Beginning with an overview of firewall and network security fundamentals, the volume explores the family of Cisco firewall products and covers topics such as configuration basics, firewalls in network topology, virtualization, using ASA with and without NAT, application inspections, voice protocols, IP multicast, Cisco firewalls, and Ipv6 and security product interactions and integration.
As many multicast based applications are increasing, the deployment of IP multicast at reasonable benefits (e.g.
The European Space Agency (ESA) has awarded a contract to develop commercial IP multicast services over satellite to a consortium led by Inmarsat Global Ltd, a provider of global mobile satellite communications that includes, among others, EMS Satcom, a provider of satellite communications solutions, IT services provider LogicaCMG, software provider GateHouse A/S and Livewire Digital Ltd, a provider of integrated data, voice and video services.
Each of the 13 chapters examines a single element of the architecture for voice, video, and integrated data (AVVID) framework, such as enterprise campus networks, security policies, IP multicast services, virtual private networks, and storage network solutions.
The easy-to-install software appliance enables static routing of IP multicast traffic through the firewall, without requiring tunneling protocols.