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Re: [v6ops] Discussion focus: draft-ietf-v6ops-ipv6rtr-reqs

Mikael Abrahamsson <swmike@swm.pp.se> Tue, 06 February 2018 05:34 UTC

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Date: Tue, 06 Feb 2018 06:34:38 +0100
From: Mikael Abrahamsson <swmike@swm.pp.se>
To: 7riw77@gmail.com
cc: 'V6 Ops List' <v6ops@ietf.org>
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Subject: Re: [v6ops] Discussion focus: draft-ietf-v6ops-ipv6rtr-reqs
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On Mon, 5 Feb 2018, 7riw77@gmail.com wrote:

> There is some confusion between "SDN" and "disaggregated" in the air 
> around the networking world. We need to clarify these somewhat. SDN has 
> a specific meaning: centralizing the discovery of reachable destinations 
> and topology, and centralizing the calculation of loop free paths 
> through the network, in whole or in part. White box + some mixture of 
> sourced and open source are not SDN.

SDN means anything and nothing in todays world. So while I agree with your 
definition, that's not how it's widely accepted to be defined. There are 
multiple of the biggest network equipment vendors who also includes 
orchestration (of both network and applications) into the SDN concept.

I have seen people use the term SDN for exactly the thing you mentioned in 
the last paragraph.

So whenever you use SDN in a text, you need to define it, because it's 
been marketed to hell and back, and it now means different things to 
different people.

-- 
Mikael Abrahamsson    email: swmike@swm.pp.se

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