Test2Review - Test2Review Exercise1 In this exercise, we...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Test 2 – Review Exercise 1 In this exercise, we are considering the go back N protocol. The send window size is 4 and the receive window size is 1. No more than one packet can be transmitted per time unit. In each step (at the time marked with dotted lines) a packet is first received, then the decision which packet is going to be send next is made, then the chosen packet is transmitted, and finally the new state is shown. In the example the time runs from the top to the bottom. Fill in the empty sliding windows and show the state of the window and fill in the missing frames (denoted with ?). The sequence number field of the MAC header is three bit length. ANSWER Since the sequence number field is three bit length, we can have frames whose sequence number is 0 to frames whose sequence number is 7 (f0,f1,f2,…,f7). The size of the send window is 4 which meets the restriction imposed by go back n protocol, which is the size of the send window must be less than 2
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 5

Test2Review - Test2Review Exercise1 In this exercise, we...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online