1 votes 1 votes In stop & wait protocol Bandwidth is 2.1 Mbps,packet size 1000 bits then what will its efficiency if in half duplex mode & full duplex mode ? Solve & Explain.. Nils asked Jul 11, 2016 Nils 1.5k views answer comment Share Follow See all 3 Comments See all 3 3 Comments reply srestha commented Jul 11, 2016 reply Follow Share what is propagation delay here? 1 votes 1 votes papesh commented Jul 12, 2016 reply Follow Share I think for stop and wait...efficiency will be same...in either case 0 votes 0 votes Shanu Sharma 1 commented Jul 14, 2016 reply Follow Share are u sure?? in full duplex since both are sending data and in full duplex piggybacking is used, therefore the total time for 1 frame is transmission time for data frame+ propagation time + transmission time for piggybacked (data+ack) frame + propagation time...... which is clearly different then half duplex in which transmission time for ack frame is negligible.... so effifciency for full dulex is less than the efficiency for half duplex in s&w protocol.. isnt it?? 0 votes 0 votes Please log in or register to add a comment.
0 votes 0 votes Efficiency for both half duplex and full duplex will be same. As it a SNW protocol. Ack will be send only after receiving the complete frame. So whether you use half duplex or full duplex you will be working like half duplex. Ashish Singh 3 answered Jul 14, 2016 Ashish Singh 3 comment Share Follow See all 2 Comments See all 2 2 Comments reply guptashekhar54 commented Oct 2, 2018 reply Follow Share In which cases efficiency will differ? 0 votes 0 votes Prasad Budithi commented Oct 28, 2018 reply Follow Share what is link utilization if half duplex was used ? ==>>> since capacity in half duplex is B*Tp and in full duplex it is 2*B*Tp. if we are sending packet of size L bits then link utilization in half duplex is L/(B*Tp) and in full duplex it is L/(2*B*Tp) 2 votes 2 votes Please log in or register to add a comment.
