self doubt

Question

if N is the maximum number of sequence numbers then sender window size in GBN protocol and SR protocol is ?

Comments

plz ans??

---

If N is the maximum available sequence no. Then

GB-N :   Sender's window size = N - 1

SR :    Sender's window size = N/2

Answer 1

In GoBack N the size of the sender window is N and receiver window is 1 where as in SR the size of the sender window=size of receiver window.

Always remember that:

Ws+Wr<=Available Sequence Nos where Ws =Size of sender window Wr=side of receiver window.

As it is given that available no of sequence nos is N :

So size of sender window in gbn=N-1

So size of receiver window in sr=N/2

For more details:https://www.computing.dcu.ie/~humphrys/Notes/Networks/data.sliding.html