Multicast routing

This article is about one-to-many communications. For radio systems, see Point-to-multipoint communication. For broadcasting multiple programs using a single channel, see Multicast channel.

Routing schemes
Unicast
Broadcast
Multicast
Anycast

Multicast Routing is one of the routing protocols in TCP/IP communication.

In computer networking, there are several multicast group communication protocols where data transmission is addressed to a group of destination computers simultaneously.

Overview

Multicast routing is a method of transmitting to all subscribers registered in a group by one transmission unlike unicast routing (i.e. OSPF,RIP) which transmits 1: 1 necessary data. To implement the multicast routing, IGMP protocol and multicast routing protocol(Reverse-path forwarding, PIM-SM) for registration subscriber grouping and control traffic are required for multicast transmission.

Routing mechanism

A multicast routing protocol is a mechanism for constructing a loop-free shortest path from a source host that sends data to the multiple destinations that receives the data. IPV4 uses Class D address (224.0.0.0 ~ 239.255.255.255)

The tree classification

There are two types of trees which are the Source based tree and Share based tree.

See also

• Anycast
• Any-source multicast
• Broadcast address
• Comparison of streaming media systems
• Content delivery network
• Flooding algorithm
• Network speaker
• Internet television
• List of streaming media systems
• Mbone, experimental multicast backbone network
• Multicast address
• Multicast lightpaths
• Non-broadcast multiple-access network
• Packet forwarding
• Push technology
• Session Announcement Protocol
• Source-specific multicast
• Broadcast, Unknown-Unicast and Multicast traffic