https://github.com/regit/lagfactory

Bash script that uses Netem to simulate delay and packet loss to a given target
https://github.com/regit/lagfactory

Last synced: 9 days ago
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Bash script that uses Netem to simulate delay and packet loss to a given target

• Host: GitHub
• URL: https://github.com/regit/lagfactory
• Owner: regit
• Created: 2011-07-23T16:20:14.000Z (over 13 years ago)
• Default Branch: master
• Last Pushed: 2013-09-19T17:54:32.000Z (about 11 years ago)
• Last Synced: 2023-03-12T05:16:48.488Z (over 1 year ago)
• Language: Shell
• Homepage:
• Size: 113 KB
• Stars: 7
• Watchers: 3
• Forks: 3
• Open Issues: 0
• Metadata Files:
  • Readme: README.rst

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README

        
=================

LagFactory script

=================

Goal

====

This bash script uses `Netem `_ to simulate delay and packet loss to a given target.

Using it

========

You need first to edit parameters at the start of the script to specify the network interfaces and target ::

	 IFACE="eth0 eth2" # Input and output interface to simulate lag in INPUT and OUTPUT

	 TARGET="192.168.1.0/24" # Host or network to apply lag on

Then, you will simply need to run as root something like ::

	 lagfactory.sh start 4000 2

	  DELAY : 4000 ms

	  LOSS : 2%

 

This will simulate a delay of 4 sec (plus or minus 2 sec) for all packets going to ''192.168.1.0/24'' via ''eth0'' and coming back from ''192.168.1.0/24'' via ''eth2''. There is also a 2 percent packet loss on these packets.

To ease administrator work, SSH trafic is not affected by this modification of network property.