nanog mailing list archives

Re: BGP and aggregation


From: Ralph Doncaster <ralph () istop com>
Date: Sun, 12 May 2002 21:31:54 -0400 (EDT)


BGP will discard any prefix with its own AS in the path, for loop
prevention. Hence, one half of the AS would still be unable to
reach the other half. This is why a partitioned AS is a failure
condition. A tunnel is a means to keep the AS nonpartitioned.

I was thinking of doing iBGP over my transit connections (with a couple 
of static routes so the iBGP works) AND over my inter-city circuit.  Any
reason why this won't work?

-Ralph



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