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Suppose, In Selective Repeat Protocol 10 packets are sent and every 4th packet is lost. 

Then, 1 2 3 4 4 5 6 7 7 8 9 10 10  {bold denote lost packets, so retransmitted!}

 Is this the right order of transmission of packet no.??

asked in Computer Networks by (267 points) | 56 views
Yes, it is right.
Order may differ..Lost packet will be resent after its time out at sender side

But it is sure that only Lost packet will be retransmitted!

1 Answer

0 votes
The lost packets will be retransmitted after getting the respective ACKs. So the correct order should be 123456789104710 right ?
answered by (17 points)
Order may vary but yes lost packets 4 7 10 will be retransmitted. Retransmission of packet will be done when sender does not found ACK till it's Time Out.

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