Re: [Ilugc] Tools for simulating network issues

2012-06-24 Thread Balasubramaniam Natarajan
> > Thanks. didn't know about tc. Looks like this will be useful for part of my > needs (for atleast simulating latency). > > Just had a look at its manpages, I am happy to learn that at least learned that such a tool exists. http://manpages.ubuntu.com/manpages/lucid/man8/tc.8.html -- Regards, Ba

Re: [Ilugc] Tools for simulating network issues

2012-06-24 Thread Suraj Kumar
Hi Bala, On Mon, Jun 25, 2012 at 10:21 AM, Balachandran Sivakumar < benignb...@gmail.com> wrote: >I guess the tc tool would be of use to you. You can do > something like this: > > # tc qdisc add dev eth0 root netem delay 100ms > > for adding a 100ms delay to all packets. It can be deleted

Re: [Ilugc] Tools for simulating network issues

2012-06-24 Thread M K Saravanan
Usually for a quick testing, I use FreeBSD-based live CD Frenzy as a VM (create a VM and assign the ISO image of the CD and boot directly from it with out installing anything) and use "ipfw" to simulate bandwidth, latency and packet loss. http://frenzy.org.ua/eng/ -- mks -- __

Re: [Ilugc] Tools for simulating network issues

2012-06-24 Thread Balachandran Sivakumar
Hi Suraj, On Mon, Jun 25, 2012 at 10:15 AM, Suraj Kumar wrote: > Hi, > > I'm looking for ways to simulate network issues. Specifically, the > following scenarios: > > IP >  - packet loss > TCP >  - connection establishment takes time >  - connection established, but server application is slow / u

[Ilugc] Tools for simulating network issues

2012-06-24 Thread Suraj Kumar
Hi, I'm looking for ways to simulate network issues. Specifically, the following scenarios: IP - packet loss TCP - connection establishment takes time - connection established, but server application is slow / unresponsive - piled up connections / running out of sockets The end goal is t