Hosts A and B have established a TCP connection. Assume that HostB's advertised window size is...
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Hosts A and B have established a TCP connection. Assume that HostB's advertised window size is at least 8000 bytes. Host B has already received and acknowledged everything sent by HostA's application up to and including byte # 1499. Suppose that HostA now sends packets of the same application data stream in order: P (1280 Bytes), Q(1280 Bytes), and R (1280 Bytes), Assume that the timeout is the same for all packets, and that destination host sends an ACK whenever it receives a segment. For all answers, enter the sequence/ACK number ONLY, in numerical characters (e.g. for Seq# 4003 you would enter "4003" without the quotes). A. What is the sequence number in packet P as it leaves HostA? B. Suppose that packel P is the first to arrive at HostB, and HostB acknowledges packet P before any other packets are received. What is the acknowledgement number in the ACK? c. What is the sequence number in packet R as it leaves HostA? D. If all three packets arrive in order and packet R is not the final packet in the stream, what is the acknowledgement number in the ACK for packet R? E. Suppose that packet P is lost, but packets Q and R are received. What is the acknowledgement number in the ACK for packet R? F. Suppose that packet P is lost, but packets Q and R are received. Packet P times out, and is retransmitted and received. What is the acknowledgement number in the ACK for the retransmitted packet P Hosts A and B have established a TCP connection. Assume that HostB's advertised window size is at least 8000 bytes. Host B has already received and acknowledged everything sent by HostA's application up to and including byte # 1499. Suppose that HostA now sends packets of the same application data stream in order: P (1280 Bytes), Q(1280 Bytes), and R (1280 Bytes), Assume that the timeout is the same for all packets, and that destination host sends an ACK whenever it receives a segment. For all answers, enter the sequence/ACK number ONLY, in numerical characters (e.g. for Seq# 4003 you would enter "4003" without the quotes). A. What is the sequence number in packet P as it leaves HostA? B. Suppose that packel P is the first to arrive at HostB, and HostB acknowledges packet P before any other packets are received. What is the acknowledgement number in the ACK? c. What is the sequence number in packet R as it leaves HostA? D. If all three packets arrive in order and packet R is not the final packet in the stream, what is the acknowledgement number in the ACK for packet R? E. Suppose that packet P is lost, but packets Q and R are received. What is the acknowledgement number in the ACK for packet R? F. Suppose that packet P is lost, but packets Q and R are received. Packet P times out, and is retransmitted and received. What is the acknowledgement number in the ACK for the retransmitted packet P
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A 8 C 10 D 10 E 10 F 10 Please note that the acknowledgement ... View the full answer
Related Book For
Computer Networking A Top-Down Approach
ISBN: 978-0136079675
5th edition
Authors: James F. Kurose, Keith W. Ross
Posted Date:
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