Mike Basdeo 2018

In this assignment, you will re-implement the HTTP client and the HTTP remote file manager of Assignments #1 and #2 respectively using UDP protocol. In the previous assignments, you leverage TCP protocol for implementation to guarantee packet transmission over unreliable network links. Because you are going to use UDP protocol that does not guarantee the transfer, you need to insure reliability by implementing a specific instance of the Automatic-Repeat-Request (ARQ) protocol called: Selective Repeat ARQ / Selective Reject ARQ. Before starting on this Lab, we encourage you to review the programming samples and the associated course materials.

PacketTypes:

0 - Request

1 - SYN

2 - SYN-ACK

3 - ACK

4 - ACK WITH NO RESPONSE REQUIRED

• SYN and ACK are just fancy GET requests. Their payloads are the console log outputs.

python httpfs.py --port 8007

.\router_x64.exe .\router_x64.exe --drop-rate=0.2 --max-delay=10ms --seed=1

python httpc.py get localhost

python httpc.py get localhost/foo

python httpc.py post -d "Assignment 3" localhost/foo

python httpfs.py -v -d "other" --port 8807

python httpfs.py -d "other" --port 8007