Question: 3. TCP Fast Retransmit This problem demonstrates TCP's Fast Retransmit mechanism which allows for the quick retransmission of a single lost packet after 3 duplicate

3. TCP Fast Retransmit This problem demonstrates TCP's Fast Retransmit mechanism

3. TCP Fast Retransmit This problem demonstrates TCP's Fast Retransmit mechanism which allows for the quick retransmission of a single lost packet after 3 duplicate ACKs have been received. The current sender transmission window cwnd- 10 packets. The very first packet sent has SN -1. Assume cwnd stays constant. The second packet transmitted in Step 1 (SN-2) is LOST!! Sender Receiver step 1 cwnd ? Step 2 Step 3 Step 4 step 5 Step 6 In Step 1, how many packets is the Sender allowed to send? How do you know? a. b. Write the Sequence Numbers of the packets transmitted during Step 1: c. What is the SN of the lost packet? d. Given the packets transmitted in Step 1 and the one lost packet, how many corresponding ACKs should be returned if there are no other losses (considering only the packets sent in Step 1)

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