An implementation of the Go Back N protocol, in Python.
Project Description: Please click here
Manoj Sharan & Anthony Scalabrino
-
Open Terminal on Ubuntu and use this command
dd if=/dev/zero of=testfile.txt bs=1 count=0 seek=1195K -
This will generate a text file with all “0”s written with size 1.1MB (approx..)
-
Before executing the program, there are some changes needed to adapt it to your environment. Open “client.py” and navigate to line 10 that has the following line :
tempfile = "/temp.txt". Replace the empty string with a valid full file path. For example,tempfile = "/home/ubuntu/temp.txt". This will be used to create a temp.txt file that will be used by the program. -
Open Terminal on Ubuntu and use this command
python server.py <port> <filename> <loss>
Where, <filename> should be replaced with the desired name of the file to write the received packets into
<loss> should be replaced with the desired probability value for inducing error/ packet loss
<port> should be replaced with the desired port number to run the server on.
- Open another terminal window on Ubuntu (preferably on a separate machine) and use this command
python client.py < IP> <Port > testfile.txt <WS> <MSS>
where, <WS> should be replaced with the desired Window Size
<MSS> should be replaced with the desired Maximum Segment Size
<IP> should be replaced with the desired server IP address/hostname to connect to
<Port> should be replaced with the desired server port number to connect to.
Note: If a different filename is used, change the “testfile.txt” to reflect the new file name.
