basic doubt in transmission time

Question

if suppose transmission time for sending frame is T

then if we want to send a window of size 3 i.e 3 frames simultaneously,will it b still T or 3*T??

///it might be a silly doubt but i was just confused.

Comments

window size=3 then send 3 frames at a time(max usage of window) then Transmission time T .

window size=3 send one frame and after ack again send one more frame like(min usage of window) in that case Transmission time=3*T

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but if we are sending all at the same time then would'nt frame sizes of all frame sum up..?

like in go back N or selective repeat,we send a window at a time..so which case do we consider then??

Answer 1

there will be pipelining then...
if say u have 3 intermediate routers and u r sending all packets in one go without waiting fr acknowledgements then for first packet it will be 4Tt and rest all will come in 1 Tt each(m nt considering Tp)

but if u r sending 1 packet at a time waiting fr its ack then sending second packet then total time will be
4Tt * no of packets..u have to find out how the question is asked!!

Comments

if u have 3 packets and have to transmit 4 times..
without acks: 4Tt+3Tt(pipelining)
with acks:4Tt * 3

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what would be total time here,TT + 2*Tp or 4*Tt + Tp according to your logic

https://gateoverflow.in/99248/find-the-throughput

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ok..thanks sudsho..:-)