[192125] in North American Network Operators' Group
Re: MPLS in the campus Network?
daemon@ATHENA.MIT.EDU (Marian =?utf-8?B?xI51cmtvdmnEjQ==?)
Fri Oct 21 10:19:27 2016
X-Original-To: nanog@nanog.org
Date: Fri, 21 Oct 2016 16:19:18 +0200
From: Marian =?utf-8?B?xI51cmtvdmnEjQ==?= <md@bts.sk>
To: steven brock <ef14019@gmail.com>
Cc: nanog@nanog.org
Errors-To: nanog-bounces@nanog.org
> Compared to MPLS, a L2 solution with 100 Gb/s interfaces between
> core switches and a 10G connection for each buildings looks so much
> cheaper. But we worry about future trouble using Trill, SPB, or other
> technologies, not only the "open" ones, but specifically the proprietary
> ones based on central controller and lots of magic (some colleagues feel
> the debug nightmare are garanteed).
>
> If you had to make such a choice recently, did you choose an MPLS design
> even at lower speed ?
A year ago we built NREN backbone using TRILL instead of MPLS.
40 POPs, no central controller, RFC standardized TRILL protocol
i.e. L2 routing using IS-IS, no STP.
See my recent presentation at http://md.bts.sk/sanet-100g-2.pdf
for more details.
Much easier to setup, operate & maintain than MPLS and obviously much
lower cost. Based on 6-months production experience, my recommendation
would be to stay away from MPLS in the campus.
With kind regards,
M.
