[12511] in North American Network Operators' Group
Re: Traffic Engineering (fwd)
daemon@ATHENA.MIT.EDU (Sean M. Doran)
Thu Sep 18 17:38:52 1997
To: "John G. Scudder" <jgs@ieng.com>
Cc: nanog@merit.edu
From: "Sean M. Doran" <smd@clock.org>
Date: 18 Sep 1997 17:26:30 -0400
In-Reply-To: "John G. Scudder"'s message of "Thu, 18 Sep 1997 17:03:47 -0400 (EDT)"
"John G. Scudder" <jgs@ieng.com> writes:
> Whether 9999 chooses to do this or not is, as the saying
> goes, "purely a local matter."
Figures. As with essentially everything in BGP.
> Some BGP implementations, gated for one, may be configured to accept
> routes with the router's own AS number in the path. Loop suppression
> is still provided by limiting the number of times it may appear.
> (Hi, Dennis.)
Oh yeah, the AS healing wars.
I didn't realize gated ever implemented this; I do
remember the first time AS path prepending met gated,
though, and a certain Russian and a certain Swede plotting
to build Sprintlink's backbone on top of ANS's using AS
healing. --:)
> This is actually useful in some circumstances.
Oh certainly. I can think of three applications right
now, actually, where that would be the easiest (but
probably also the most dangerous) approach to solving
routing awkwardnesses.
I take it this feature is documented in the usual place?
Sean.
