Re: Great outage of 1997 - Does anyone recall?

[Gadi Evron <ge () linuxbox org>]

What was that story with an African routes some years back, any 
memories anyone? I am looking for a reference.


On Sun, 22 Feb 2009, Patrick W. Gilmore wrote:

> On Feb 22, 2009, at 1:47 AM, Randy Bush wrote:
>
> > > > Does anyone have the full story on this?
> > > <http://www.merit.edu/mail.archives/nanog/1997-04/msg00444.html>
> >
> > bottom line:
> > o do not redistribute bgp into igp
> > o do not redistribute dynamic igp into bgp
> > o filter your peers and customers
>
> And don't put all your most important infrastructure stuff (e.g. name server, 
> mail server, shell host, etc.) in the first /24 of your /<shorter> 
> allocation.
>
> The biggest problem with 7007 was not that it announced a bunch of prefixes. 
> It is that 7007 announced _classful_ prefix (it had been filtered through 
> RIP, remember?) with AS_PATH of ^7007$.  This means if you had a 
> 194.1.0.0/16, you saw 194.1.0.0/24 from 7007, which is more specific.  Why 
> this is bad is left as an exercise to the reader.
>
> And, of course, the problem persisted after the router in question was 
> actually unplugged - not powered up or attached to any fibers/cables.  Thank 
> you Sprint for running beta code. :)
>
> --
> TTFN,
> patrick