We are sending a MP3 file of 300,000 bits from Host A to Host B. Host...

We are sending a MP3 file of 300,000 bits from Host A to Host B. Host A and B are each connected to a switch S via 100 Mbps links. Assume that each link introduces a propagation delay of 10 µs (microsecond). Calculate the total transfer time of the entire file (from first bit sent to last bit received) for the following:

Suppose the MP3 file is sent as one message. S is a store-and-forward device; it begins retransmitting immediately after it has finished receiving the packet.
Suppose that the MP3 file is broken into 6 packets, each of 50,000 bits. S is a store-and-forward device; it begins retransmitting immediately after it has finished receiving the packet.
Suppose that the MP3 file is broken into 6 packets, each of 50,000 bits. S implements ‘cut-through” switching: It is able to begin retransmitting the packet after the first 500 bits have been received.

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venereology answered 4 months ago

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