RUOFF, LARS (LARS)** CTR ** wrote:
Hello,
anyone knows a good network impairment generator software?
One that is using a PC with two NICs, on which you relay packets from
one NIC to the other with user defined packet loss, jitter etc.
I used to use Netdisturb some time back.
Does anybody know something else? Possibly free software?
Windows or Linux based.
I used NistNet some years ago but found it too unstable (machine was
hanging/crashing all the time).
Since then I've used FreeBSD's ipfw dummynet/traffic shaper:
http://www.freebsd.org/cgi/man.cgi?query=ipfw&sektion=8&apropos=0&manpath=FreeBSD+8.1-RELEASE#TRAFFIC_SHAPER_(DUMMYNET)_CONFIGURATION
It's rock solid in my experience. But, it has limited functionality
compared to some other products (e.g., you can't do jitter). But that
fit's my needs: I generally want to control packet loss and occasionally
mis-order packets.
I think my company also uses this product:
http://www.shunra.com/ve-cloud
Complaints that I know of is that it's not free and (at least in
the--probably old--version we have) it's not easy to automate tests with it.
