Question: The RDT 2.2 protocol (c). Consider the rdt 2.2 sender and receiver below, with FSM transitions labeled in red. Also consider the sender and receiver

The RDT 2.2 protocol (c). Consider the rdt 2.2 sender and receiver below, with FSM transitions labeled in red. Also consider the sender and receiver timeline following the FSMs, where a green OK label indicates a message that is not corrupted, and a red corrupt label indicates a message that is corrupted. We are interested in the sequence number (0 or 1) of a data message, and the ACK number (0 or 1) of an ACK message for the messages sent at t= 2, 3, 4, 5 in the figure below.

Which of the following sequences of interleaved data sequence numbers and ACK numbers corresponds to those in the messages sent at t=2 (data sequence number); t=3 (ACK number), t=4 (data sequence number), and t=5 (ACK number)? Only one sequence is correct.

Note: you can generate/solve/practice many similar instances of this question here.

		1, 0, 0, 1
		1, 0, 1, 0
		1, 1, 0, 1
		0, 0, 0, 0
		0, 1, 1, 0
		1, 1, 1, 0
		1, 0, 1, 1
		1, 1, 1, 1

The RDT 2.2 protocol (c). Consider the rdt 2.2 sender and receiver

below, with FSM transitions labeled in red. Also consider the sender and

SO rdt_send(data) sndpkt-make_pkt(0, data, checksum) udt_send(sndpkt) rdt_rev(revpkt) && (corrupt (revpkt) || iSACK (revpkt,1)) (S1 udt_send(sndpkt) Wait for call o from above Wait for rdt_rev (revpkt) && not corrupt (revpkt) && ISACK(revpkt, 1) A RDT 2.2 sender rdt_rev (revpkt) && notcorrupt (revpkt) && ISACK (revpkt,0) S2 A S5 Wait for ACK 1 Wait for call 1 from above rdt_rev(revpkt) && (corrupt (revpkt) || S4 SACK( revpkt,0)) udt_send(sndpkt) S3 rdt_send(data) sndpkt-make_pkt(1, data, checksum) udt_send(sndpkt) RO rdt_rev (revpkt) && notcorrupt (revpkt) && has_seq0 (revpkt) extract (revpkt, data) deliver_data (data) sndpkt-make_pkt(ACK, 0, checksum) rdt_rev (revpkt) && udt_send(sndpkt) (corrupt (revpkt) | R1 has_seq0(revpkt)) sndpkt-make_pkt(ACK, 0, checksum) udt_send(sndpkt) Wait for RDT 2.2 Wait for O from 1 from below receiver below rdt_rev (revpkt) && (corrupt (revpkt)! has_seql(revpkt)) (R3 sndpkt-make_pkt (ACK, 1, checksum) udt_send (sndpkt) R2 rdt_rev (revpkt) && notcorrupt (revpkt) && has_seql (revpkt) extract (revpkt, data) deliver_data (data) sndpkt=make_pkt(ACK,1, checksum) udt_send(sndpkt) sender receiver t = 0 AK data OK t = 1

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

To determine the correct sequence of interleaved data sequence numbers and ACK numbers based on the ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Databases Questions!

3 . 4 - 3 The RDT 2 . 2 protocol ( c ) . Consider the rdt 2 . 2 sender and receiver below, with FSM transitions labeled in red. Also consider the sender and receiver timeline following the FSMs ,...

3 . 4 - 1 The RDT 2 . 2 protocol ( a ) . Consider the rdt 2 . 2 sender and receiver below, with FSM transitions labeled in red. Which of the following sequences of transitions could possibly occur as...

P 4 . ( 1 0 pts ) The RDT 2 . 2 protocol. Consider the rdt 2 . 2 sender and receiver below, with FSM transitions labeled in red. Also consider the sender and receiver timeline following the FSMs ,...

Question 9 (Mandatory) (1 point) 3.4-2 The rdt 2.0 protocol. Consider the rdt 2.0 sender and receiver shown below, with FSM transitions at the sender labeled S1, S2, and S3; and receiver transitions...

3.4-2 The rdt 2.0 protocol. Consider the rdt 2.0 sender and receiver shown below, with FSM transitions at the sender labeled S1, S2, and S3; and receiver transitions labeled R1 and R2. Which of the...

Consider rdt 2 . 2 Suppose that the channel connecting the sender and receiver can corrupt but not lose or reorder packets. Now consider the figure below, which shows four data packets and three...

Consider the RDT 3.0 protocol, for reliably communicating data from a sender to receiver over a channel that can lose or corrupt packets in either direction, and when the maximum delay from sender to...

+ -------------------------------------------------------------------------------------------------------------- RDTSend.py from socket import * import threading import struct import sys import...

Alice must be appreciably less. The downside is that every peer that has a in shape might ask Alice to open a TCP connection; Alice may also consequently must opens tens or hundreds of TCP...

Suppose that the channel connecting the sender and receiver can corrupt but not lose or reorder packets. Now consider the figure below, which shows four data packets and three corresponding ACKs...

The chief of automobile maintenance for the city of Normal feels that maintenance costs on high- mileage cars are much higher than those costs for low-mileage cars. The maintenance chief regresses...

Show syntheses of these compounds from(Z)-2-butene: ) - a) H H C-C - CH3 . .

Gross profit is _ _ _ _ _ _ _ _ . A . EBIT - depreciation B . EBIT - cost of goods sold C . Sales revenue - operating expenses D . Sales - cost of good sold

8:37 * N. 80% i ... OBJECTIVES: Create relationships Create a Pivot Table from Related Tables Create a PivotChart Modify the PivotChart The major section in this chapter :ontinuation is: Data...