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10 Cards in this Set
- Front
- Back
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The data link layer of the OSI model provides access to
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the networking media and physical transmission across the media, which enables the data to locate its intended destination on a network.
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The data link layer is concerned with physical (as opposed to network, or logical)...
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addressing
network topology line discipline (how end systems will use the network link) error notification ordered delivery of frames flow control. |
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Layer 1 limmitation:
Layer 1 cannot communicate with the upper level layers Layer 2 solution: |
Layer 2 Logical Link Control (LLC).
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Layer 1 limmitation:
Layer 1 cannot name or identify computers Layer 2 solution: |
Layer 2 uses the addressing (or naming) process to identify computers
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Layer 1 limmitation:
Layer 1 can only describe streams of bits Layer 2 solution: |
Layer 2 uses framing to organize or group the bits
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Layer 1 limmitation:
Layer 1 cannot decide which computer will transmit binary data from a group that are all trying to transmit at the same time Layer 2 solution: |
Media Access Control (MAC) address
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IEEE 802.3 specifies...
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Layer 1: the physical layer
Layer 2: the channel-access portion of the data link layer |
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IEEE divides the data link layer two parts:
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>The technology-independent 802.2 LLC standard
>The specific, technology-dependent parts that incorporate Layer 1 connectivity >>Media Access Control (MAC) (transitions down to media) >>Logical Link Control (LLC) (transitions up to the network layer) |
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LLC stands for
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Logical Link Control (LLC)
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MAC stands for:
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Media Access Control (MAC)
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