Re: MPLS in the campus Network?

[Marian Ďurkovič <md () bts sk>]

> 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.