A radio link between a transmitting Earth station and a receiving Earth station through two or more satellites, without any intermediate Earth station. A multi-satellite link comprises one uplink, one or more satellite-to-satellite links, and one downlink. [NTIA] [RR]

A characteristic of a sequence or group of messages that allows several messages to be sent by one party to the same message recipient without waiting for a response to each message. [After X9.15]

A service feature that permits a user to designate more than one addressee for the same data.
Note: Multiaddress calling may be performed sequentially or simultaneously.

A technique of transmitting data by dividing the data into several interleaved bit streams and using these to modulate several carriers.
Note: MCM is a form of frequency-division multiplexing.

1. In a network, a technique that allows data, including packet form, to be simultaneously transmitted to a selected set of destinations.
Note: Some networks, such as Ethernet, support multicast by allowing a network interface to belong to one or more multicast groups.
2. To transmit identical data simultaneously to a selected set of destinations in a network, usually without… (Read More →)

A routing address that (a) is used to address simultaneously all the computers in a group and (b) usually identifies a group of computers that share a common protocol, as opposed to a group of computers that share a common network.
Note: Multicast address also applies to radio communications. Synonym (in Internet protocol) class d address.

A part of the Internet designed to support IP multicasting by coordinating the transmission of messages to a single destination instead of allowing packets to travel by different routes. [Bahorsky]

The use of packet replication to send a single source stream to multiple multicast hosts. This creates a dynamic tree topology based on group membership within the network.

This is the end multicast receiver analogous to the ITF when addressing IPTV multicast applications. The multicast host uses the IGMP protocol to add and remove itself from the multicast distribution tree.

MLD v1, as defined in RFC 2710, is the original version of the MLD protocol allowing IPv6 multicast hosts to join a multicast tree. MLDv1 does not support SSM since the join and done messages only define the group address and not the source address.