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Presentation transcript:

Media Access Control

Data link layer - Media access control sublayer 1 There are generally two forms of media access control: distributed and centralized. Both of these may be compared to communication between people. In a network made up of people speaking, i.e. a conversation, we look for clues from our fellow talkers to see if any of them appear to be about to speak. If two people speak at the same time, they will back off and begin a long and elaborate game of saying "no, you first".

Data link layer - Media access control sublayer 1 The Media Access Control sublayer also determines where one frame of data ends and the next one starts – frame synchronization. There are four means of frame synchronization: time based, character counting, byte stuffing and bit stuffing.

Media access control 1 In the seven-layer OSI model of computer networking, media access control (MAC) data communication protocol is a sublayer of the data link layer, which itself is layer 2. The MAC sublayer provides addressing and channel access control mechanisms that make it possible for several terminals or network nodes to communicate within a multiple access network that incorporates a shared medium, e.g. Ethernet. The hardware that implements the MAC is referred to as a medium access controller.

Layer 2 - Media access control sublayer 1 The Media Access Control sublayer also determines where one Frame (networking)|frame of data ends and the next one starts – frame synchronization. There are four means of frame synchronization: time based, character counting, byte stuffing and bit stuffing.

APIPA - Media access control 1 Media access control (MAC) addresses used in local broadcast networks, such as Ethernet, are link-local addresses. Such devices are configured with an address in hardware by the manufacturer. However, operating system utilities, such as ifconfig may be used to assign or change these addresses. This is essential when an operating system is running in a virtual machine environment.

TPDU - Media access control protocol data unit 1 'Media access control protocol data unit' or 'MPDU' is a message (Protocol data unit) exchanged between media access control (MAC) entities in a communication system based on the layered Open Systems Interconnection model.

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