[c-nsp] circuit degradation/error simulator

[Joel M Snyder]

 >For some testing I'm looking for a piece of software which is capable
 >of inserting various degradation and/or errors into a traffic stream.

There are a number of open source tools (Dummynet, Wanem) with fairly 
basic capabilities.  You can also program your typical router for pure 
shunning; I have a Mikrotik attached to a rig on my desktop I'm using to 
simply choke a link down to 512K at this very moment.  These are good 
enough for a typical "what happens when this happens" kind of testing. 
Sometimes you need more interesting test environments, and then we use 
Shunra Virtual Enterprise (formerly Shunra Cloud, 
http://www.shunra.com/) and I've also used (but don't own) Linktropy 
(Apposite Technologies, http://www.apposite-tech.com/)

jms

-- 
Joel M Snyder, 1404 East Lind Road, Tucson, AZ, 85719
Senior Partner, Opus One       Phone: +1 520 324 0494
jms at Opus1.COM                http://www.opus1.com/jms