3

the main reason for RTO to be variable is to avoid congestion collapse. if the timer is set to a too shorter value, there is a danger that the sender starts retransmitting packets, that are still being in-flight, thus overloading the network with unnecessary packets (that may end up delivered twice). The Jackobson algorithm for calculating RTO is intended to ...


2

If I am running a high performance local area TCP network then I would want the timeout value to be low. On the other hand, if I am sending messages to a low performance, over loaded TCP server I would want the timeout value to be long because the server might not be able to get to my traffic right away.


1

the answer to "is definitelly NOT is A." routing routing is done by network layer before i go in the next ones here is disabmiguity warning. B. and C. are performed by TCP which is transport layer. if the application is using a custom transport protocol on top of UDP, i.e., RTP for transmitting multimedia, then, depending on the definition, it ...


1

assuming that the client only sends and the server only receives and acks: (1) the server may or may not contain a buffer. Go-Back-N will function perfectly, if there is a buffer for only one packet on the receiver. However, you could include a buffer (which comes with a window) as an optimization. (2) the server should not memorize the sender window, or do ...


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