[50396] in North American Network Operators' Group
Re: solving problems instead of beating heads on walls
daemon@ATHENA.MIT.EDU (Brad Knowles)
Sat Jul 27 16:44:48 2002
In-Reply-To:
<Pine.LNX.4.44.0207271518540.11633-100000@ford.richweb.com>
Date: Sat, 27 Jul 2002 22:32:33 +0200
To: "C. Jon Larsen" <jlarsen@richweb.com>,
Brad Knowles <brad.knowles@skynet.be>
From: Brad Knowles <brad.knowles@skynet.be>
Cc: Andy Dills <andy@xecu.net>, Ralph Doncaster <ralph@istop.com>,
Joe Provo <joe.provo@rcn.com>, "nanog@merit.edu" <nanog@merit.edu>
Errors-To: owner-nanog-outgoing@merit.edu
At 3:51 PM -0400 2002/07/27, C. Jon Larsen wrote:
> But with only 1 ISP link in each city (1 upstream) if he ever loses the
> link between the two cities, he has a problem, as there is no way to
> transfer traffic bound for city1 that enters city2's connection, and vice
> versa.
I think he has already explained that it is not possible for him
to buy bandwidth from both providers in both cities. Therefore, your
proposed solution is impossible.
> Again, one needs to engineer ones network to work around one's own
> failures. I.e. ask or expect don't push routes into other people's tables
> because you are too cheap to buy a backup pipe, or too lazy to config a
> gre tunnel.
IIRC, he has also already explained that he already has a backup
pipe between the two sites. However, because he can't buy bandwidth
from both providers in both cities, this obviously is only part of
the equation.
--
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.
