Re: Did your BGP crash today?

[Thomas Mangin <thomas.mangin () exa-networks co uk>]

My point was not about crafted bgp message to test border cases - this is what one would expect in a regression suite.
It is about the use of a fuzzer to corrupt packet when you then do not know if the router is then behaving correctly or 
not.

---
from my iPhone

On 28 Aug 2010, at 13:36, Saku Ytti <saku () ytti fi> wrote:

> On (2010-08-28 13:23 +0200), Thomas Mangin wrote:
>
> > Those tools are not suitable for regression testing ( I know I wrote exabgp ) not saying they could not be adapted 
> > though.
> >
> > Fizzing may return crashes or issues with the daemon but it is unlikely. You need predictable input for regression 
> > testing and in our particular case how do you detect a corruption without knowing what the behaviour of the router 
> > should be on that particular input.
>
> It doesn't actually matter how likely or unlikely one expect such tool to
> be finding new issues. There is already value, that researchers like RIPE
> in this case, could simply write new test case, instead of needing to build
> whole infrastructure.
>
> -- 
>  ++ytti