nanog mailing list archives

Re: Problems with specific routing policies for each exchange point


From: Abha Ahuja <ahuja () merit edu>
Date: Fri, 31 Oct 1997 13:24:34 -0500 (EST)


Hi All!

It seems that this situation has brought up a lot of questions about the
use of the rs-in and rs-out lines with AS-MACROS.  The goal of allowing
the AS-MACROS in these lines was the same as there use withing the as-in
and as-out lines.  It makes things simple and convenient to administer...
improved functionality.  Our code originally didn't do the error checking
for the AS-MACRO looping in the rs-in and rs-out lines (although with
RtConfig we caught it in the as-in and as-out lines).  We will be making
the correct changes in the next few days.

If anyone has any more questions regarding these issues, please feel free
to contact me (or Jake).

Thanks.

-abha ;)

On Fri, 31 Oct 1997, Danny McPherson wrote:

I was not questioning the function, only the requirement. It seems
that if the problem exist between NAPNET and GENUITY, it might exist
elsewhere and changing to the specific ASes would be a simple fix.

Are there cases where an AS macro would be really beneficial in the
inet-rtr.rs-(in|out) statements?

Well, assuming you use as-macros as they were intended (to simply objects) .. 
it shouldn't be a problem.  The code is obviously broken and Jake is fixing 
it.  I assume that we could create another 2 macros listing every AS 
individually, but then that'd be more changes that'd we'd have to make every 
time we pick-up or drop an AS.

I've removed AS-NAPNET from the AS-GENUITY macro until the problem is 
corrected..

-danny
 

Frankly, it's paranoia that causes me to only put specific ASes in the
statements. While I'm willing to let an ISP tell me what ASes they are
carrying, I want to know exactly with whom I'm exchanging routes.

I always thought of Randy as the conservative type, but maybe not as
much as I.
-- 
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




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abha ahuja                                              ahuja () merit edu
Merit Network, Inc.                                     313.764.0294




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