Re: Did your BGP crash today?

[Mike Tancsa <mike () sentex net>]

At 12:40 PM 8/30/2010, Kevin Oberman wrote:

> This only way they could have caught this one was to have tested to a
> CRS which had another router to which it was announcing the attribute in
> a mal-formed packet. Worse, the resets should just keep happening as the
> CRS would still have the route with the unknown attribute which would
> just generate another malformed update to cause the session to reset
> again.
>
> While it may be possible to recover from something like this, it sure
> would not be easy.


We experienced something like this a year ago on a couple of quagga 
boxes. At least we had source code to go through and resources to 
make use of that source code to find the problem and implement a 
quick work around.  Its for situations like this, debugging logging 
is ooooohhh so important.

What did people do in this case to identify the issue ?  Did you just 
pass it off to your vendor ? or did anyone try to diagnose it locally 
?  If so, what did you do ?


        ---Mike


> --
> R. Kevin Oberman, Network Engineer
> Energy Sciences Network (ESnet)
> Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
> E-mail: oberman () es net                  Phone: +1 510 486-8634
> Key fingerprint:059B 2DDF 031C 9BA3 14A4  EADA 927D EBB3 987B 3751

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