[190260] in North American Network Operators' Group
Re: IP and Optical domains?
daemon@ATHENA.MIT.EDU (Masataka Ohta)
Mon Jun 20 16:38:26 2016
X-Original-To: nanog@nanog.org
To: Mark Tinka <mark.tinka@seacom.mu>, nanog@nanog.org
From: Masataka Ohta <mohta@necom830.hpcl.titech.ac.jp>
Date: Tue, 21 Jun 2016 05:38:10 +0900
In-Reply-To: <c8918432-4cdf-15ae-5119-f60239ac71b3@seacom.mu>
Errors-To: nanog-bounces@nanog.org
Mark Tinka wrote:
> Layer 2 transport is required in any scenario.
Yes, of course, as I wrote:
> all the thing to be done at L2 is to watch BER/FER
> above some threshold.
I don't deny L2 exist, though, if L3 protocols were properly
designed, L2 protection is not required.
> Dark fibre, for example,
> would not have any optical kit on it, and can be fired through
> router-to-router optics.
That's L1, which is also required to exist.
> We primarily over-provision to support growth. Resiliency comes as
> secondary benefit.
>
> If you are deploying additional bandwidth just for protection, I hope
> you're my competitor.
So, you deny the original point of "The result of this is that the
networks are heavily underutilized". OK.
Masataka Ohta
