#CN Given are the sequence number field bits, tell the total sequence number possible and SWS in all SWP? (Self Doubt)

Question

Say sequence # field has 5 bits. 

So, I know, we have a relation 

Ws+Wr <= avail seq #

So in simple SWP = 2^5 = 32 sequence number and SWS = 32 packets ( is it correct)?

in GBN = sequence number possible = 2^n-1 = 32-1 = 31 sequence # and SWS = 31 packets?

In SR, seq # = 2^n-1 = 2^4 = 16 seq # and SWS = 16

 

Though, in GBN we have WS+WR as N+1 <= avail seq #

and in SR we have 2N <= seq #

So, how to find the sequence # from seq # field bits?

Comments

@magma please can you help?

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I didn't understood properly

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Just tell me if we have sequence # field bits = 5

then answer below questions -

a) How many sequence numbers possible with 5 bits?

b) What is the Window size of Sender in case of SR - ARQ?

 

@magma

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@shaik bro can you help please!

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if sequence bit is 5 bit -> 2^5=32 sequence number possible

in gbn      ws+wr<=32

                 n+1<=32

                  n(ws)<=31

in sr           ws+wr<=32

                   n+n<=32

                    n(ws)<=16

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@ adarsh_1997  thanks bhai, gazab answer! :)

Ek baat aur jaise yeh likha hai -

n(ws)<=31 iska matlab sender ki window mein 31 ja 31 se zada packets ho sakte hai