Avaya 1600 manual MAC address, OSI Reference

LMI	Local Management Interface. a set of the following
	enhancements to the basic Frame Relay
	specification. Called “LMT” in ANSI terminology.
	a keep-alive mechanism that verifies that data is
	flowing.
	a multi-cast mechanism, which provides the network
	server with its local DLCI and the multi-cast
	DLCI.
	Global addressing; this gives DLCIs global rather
	than local significance in Frame Relay networks.
	a mechanism that provides an on-going status report
	on the DLCIs known to the switch.
MAC	Media Access Control. Lower of the two sub-layers
	of the data link layer defined by the IEEE.
MAC address	Standardized data link layer address that is required
	for every port or device that connects to a LAN.
	Other devices in the network use these addresses to
	locate specific ports in the network and to create and
	update routing tables and data structures. MAC
	addresses are six bytes long and are IEEE-
	controlled. Also known as a hardware address, a
	MAC-layer address, or a physical address.
MPEG	Moving Pictures Expert Group.

OSI Reference

Model Network architectural model developed by ISO and ITU-T. The model consists of the following seven layers, each of which specifies particular network functions.

The lowest layer is closest to the media technology, and the highest layer is closest to the user. The hardware and software implement the lower two layers, while only the software implements the upper five layers.

Physical layer - the actual wires and connections in the network.

Data link layer – responsible for physical addressing, network topology, error notification, and ordered delivery.

Network layer – responsible for connectivity, path selection, and routing.

Transport layer – responsible for network communication, virtual circuit management, fault detection, and flow control.

Session layer - manages sessions between applications.

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