[12593] in North American Network Operators' Group
Re: Ascend/BGP4 <-> hop <-> Cisco/BGP4
daemon@ATHENA.MIT.EDU (John A. Tamplin)
Wed Sep 24 01:14:10 1997
Date: Wed, 24 Sep 1997 00:09:19 -0500 (CDT)
From: "John A. Tamplin" <jat@traveller.com>
To: Phil Howard <phil@charon.milepost.com>
cc: nanog@merit.edu
In-Reply-To: <199709240156.UAA28272@charon.milepost.com>
On Tue, 23 Sep 1997, Phil Howard 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:
>
> ------- ------
> | CRL |---T1---|P400|-- ---- servers
> ------- ------ \ /
> ---------
> |GRF 400|-- dialup
> ---------
> ------- ------ / \
> | MCI |---T1---|P400|-- ---- dedicated
> ------- ------
>
> When the T1 cards show up, I plan to simplify the topology.
For what it is worth, the CRL router you connect to will probably not be
your BGP peer, if they do it the way they did with us and with other
people I talked to. In our case, it was 3 hops away.
John Tamplin Traveller Information Services
jat@Traveller.COM 2104 West Ferry Way
205/883-4233x7007 Huntsville, AL 35801
