DATA LINK LAYER WIRED NETWORKS
WIRED LANS ETHERNET PROTOCOL
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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cut-through
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fast-forward
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fragment-free
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store-and-forward
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Detailed explanation-1: -Explanation: When the store-and-forward switching method is used, the switch receives the complete frame before forwarding it on to the destination. The cyclic redundancy check (CRC) part of the trailer is used to determine if the frame has been modified during transit.
Detailed explanation-2: -Store-and-Forward Mode Once received and buffered, the switch will compare the FCS field of the frame against its frame-check-sequence (FCS) calculations to ensure the integrity and correctness of the data.
Detailed explanation-3: -A frame arrives on one port (the ingress port), and is usually sent out a different port (the egress port). The switch will add a small amount of latency to the traffic as is processes the frames. There are two methods that a switch can use for frame processing, called Cut-Through and Store and Forward.
Detailed explanation-4: -Store-and-forward switching: With this frame forwarding method, the switch receives the entire frame and computes the CRC. Cut-through switching: With this frame forwarding method, the switch forwards the frame before it is entirely received. 15-Jul-2020