nanog mailing list archives

Re: Ascend/BGP4 <-> hop <-> Cisco/BGP4


From: "Neil J. McRae" <neil () domino org>
Date: Wed, 24 Sep 1997 10:00:02 +0100

On Tue, 23 Sep 1997 20:56:16 -0500 
 Phil Howard <phil () charon milepost com> wrote:

Has anyone done a BGP4 peering between an Ascend GRF and a Cisco IOS when
there is an extra hop in between?  I want to be on the lookout for the
pitfalls.  The Ascend GRF will be on my side, as well the extra hop which
is needed because Ascend isn't shipping T1 media cards for the GRF, yet.
So we have to do with an ethernet first link out.  I'm assuming both of
my upstreams are running Cisco 7xxx.  The topology looks like:


I've not done it with the GRF but I have done this with BSD/OS and
gated, and it worked OK. [still is working AFAIK :-)]

[
 8  baynard-mega-int-e3.bt.net (194.72.1.254)  40.246 ms  19.178 ms  10.848 ms
 9  galaxians.router.easynet.net (193.131.248.185)  23.402 ms  45.58 ms  45.057 ms
]
When we did this is just worked. Although I'm not sure what BTnet did [if
anything] to make the intermediate hop work ok.

They need to specify egp-multihop

Cheers,
Neil.
--
Neil J. McRae. Alive and Kicking.       Domino: In the glow of the night.
neil () DOMINO ORG        NetBSD/sparc: 100% SpF (Solaris protection Factor) 
  Free the daemon in your <A HREF="http://www.NetBSD.ORG/";>computer!</A>



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