MLD v2, as defined in RFC 3810, adds support for SSM along with join-done signaling in a single notification message. MLDv2 is backwards compatible with MLDv1 and can support ASM.

Also known as the mroute table. Before a network element can replicate and forward multicast packets, the multicast packets must be received from an upstream interface (often noted the Incoming InterFace or IIF). The mroute table stores all the relevant multicast group information such as IIF and source address. If RPF is enabled, the mroute table may note which groups… (Read More →)

Pertaining to communications, usually full-duplex communications, on more than one channel.
Note: Multichannel transmission may be accomplished by time-division multiplexing, frequency-division multiplexing, phase-division multiplexing, or space diversity.

In radio communications, a device for connecting several receivers or transmitters to one antenna in such a way that the equipment impedances are properly matched to the antenna impedance.

A DCME- (direct-circuit, multiplication equipment) operational mode where trunk channel traffic is interpolated over a pool of available bearer channels regardless of destination within the multidestination network. [T1.309-1990]

A fiber-optic cable having two or more fibers, each of which is capable of serving as an independent optical transmission channel. [After FAA]

See cable assembly.

An optical splice or connector designed to mate two multifiber cables, providing simultaneous optical alignment of all individual optical fibers.

In PCM systems, a set of consecutive frames in which the position of each frame can be identified by reference to a multiframe alignment signal.
Note: The multiframe alignment signal does not necessarily occur, in whole or in part, in each multiframe.

Synonym multifrequency signaling. See dual-tone multifrequency signaling.