Project #1: Throughput Evaluation of Link Layer Flow Control

Computer Communication Networks 19/FA

Project Grading Sheet

Category Grade Score / max. pts

1 Compilation successful w/o error (max point only when implementation is completed)

C 14.8 / 20

2 Run w/o run-time error (max point only when implementation is completed)

C 7.4 / 10

3 Frame generation at node A C 7.4 / 10 4 Full-duplex links among all 3 nodes C 7.4 / 10

5 Sliding window between nodes A & B Stop-and-wait between nodes B & C

D 20.1 / 30

6 Simulation with P_Tx varied from 0.1 to 1.0 0.0 / 10

7 Summary table and plot of Throughput v. P_Tx, 50 kbps & 150 kbps, and 1-page narrative

0.0 / 10

Total score: 57.1 / 100

See my comments below.

Comments, screenshots, and suggestions • The diagram shown below indicates incomplete implementation of a 3-node network.

• As shown below, the submitted package didn’t get compiled at all. OMNeT+ project was not properly created as the submitted package didn’t include necessary configuration folders and files (e.g., .settings and .cproject).

Computer Communication Networks 19/FA

• As shown below, after I created a new OMNeT++ project and copied your files to it, it started to

compile but encountered errors.

Suggestions: • Go back to the 18 examples of tictoc in OMNeT++ to sharpen your skills in C/C++ and

OMNeT++ as prep to be able to work on Project 2 and final project. • Then, also review a 3-node network example given for project 1.