8. EEE 459/591 Communication Networks Consider the network architecture in the figure below consisting of a...

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8. EEE 459/591 Communication Networks Consider the network architecture in the figure below consisting of a 100 Mbps Ether- net, an Ethernet switch (without cut-through switching functionality), and a 10 Mbps Ethernet. Suppose host A wants to send a large number of packets to host B. Each packet has 1,500 bytes, i.e., 12,000 bits, and the 12,000 bits include the data and all Ethernet header, trailer and preamble fields. Suppose this is the only active session on the network. Assume propagation delays and processing times are negligible, and acknowledgements are instantaneously returned from host B to host A. A 100 Mbps Ethernet Switch 10 Mbps B (a) Find the round-trip time, d. (Recall that the round-trip time is the length of time from when a host begins to transmit a packet until when the host receives an acknowledgement of the packet.) (b) What is the maximum throughput in packets per second from A to B? (c) Suppose A uses a pipelined transmission protocol with a window size of W = 1 packet. Find the throughput in packets/sec. (d) Suppose the window size is W = 2 packets. Find the throughput in packets/sec. 8. EEE 459/591 Communication Networks Consider the network architecture in the figure below consisting of a 100 Mbps Ether- net, an Ethernet switch (without cut-through switching functionality), and a 10 Mbps Ethernet. Suppose host A wants to send a large number of packets to host B. Each packet has 1,500 bytes, i.e., 12,000 bits, and the 12,000 bits include the data and all Ethernet header, trailer and preamble fields. Suppose this is the only active session on the network. Assume propagation delays and processing times are negligible, and acknowledgements are instantaneously returned from host B to host A. A 100 Mbps Ethernet Switch 10 Mbps B (a) Find the round-trip time, d. (Recall that the round-trip time is the length of time from when a host begins to transmit a packet until when the host receives an acknowledgement of the packet.) (b) What is the maximum throughput in packets per second from A to B? (c) Suppose A uses a pipelined transmission protocol with a window size of W = 1 packet. Find the throughput in packets/sec. (d) Suppose the window size is W = 2 packets. Find the throughput in packets/sec.

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a The roundtrip time d is the time from when host A begins to transmit a packet until when host A re... View the full answer