[50400] in North American Network Operators' Group
Re: solving problems instead of beating heads on walls
daemon@ATHENA.MIT.EDU (Brad Knowles)
Sat Jul 27 17:00:30 2002
In-Reply-To:
<Pine.LNX.4.44.0207271515120.5291-100000@elvis.kravshera.net>
Date: Sat, 27 Jul 2002 22:53:52 +0200
To: Paul Schultz <pschultz@pschultz.com>,
Brad Knowles <brad.knowles@skynet.be>
From: Brad Knowles <brad.knowles@skynet.be>
Cc: nanog@merit.edu
Errors-To: owner-nanog-outgoing@merit.edu
At 4:04 PM -0400 2002/07/27, Paul Schultz wrote:
> If you connect to the same transit(s) in both cities you can announce more
> specific networks with no-export set, keep most of your external traffic
> off your own network, and not cause the entire world to know about your
> more specific advertisements.
Right, but he's already explained that he is unable to connect to
the same two providers in both cities, because one of them doesn't
have a presence in both cities.
> Responsible yet lacking some redundancy: connect to the same single
> provider in both locations and announce more specific networks w/
> no-export.
That doesn't help if that one provider goes Tango-Uniform.
> Irresponsible yet gaining redundancy: connect to a different provider
> in each region and announce more specifics. no-export not an option,
> longer prefixes heard globally.
Can we gain redundancy by connecting to a different provider in
each city, but still find a way to be responsible?
> Responsible and overall best: connect to the same 2+ providers in both
> locations and announce more specifics locally in each region/city/whatever
> with no-export.
As said above, this isn't possible. I'd like to learn what could
be done in this kind of situation that would allow the desired
redundancy, while also being responsible.
I'm not a manager of a large network (where I might have this
kind of problem myself), nor am I employed at a large ISP (where my
customers might have this kind of problem). But I would like to
learn.
--
Brad Knowles, <brad.knowles@skynet.be>
"They that can give up essential liberty to obtain a little temporary
safety deserve neither liberty nor safety."
-Benjamin Franklin, Historical Review of Pennsylvania.
