Re: [spring] Spirit and Letter of the Law (was: Question about SRv6 Insert function)

Fernando Gont <fgont@si6networks.com> Thu, 05 September 2019 19:00 UTC

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To: Robert Raszuk <rraszuk@gmail.com>
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From: Fernando Gont <fgont@si6networks.com>
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Subject: Re: [spring] Spirit and Letter of the Law (was: Question about SRv6 Insert function)
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On 5/9/19 18:31, Robert Raszuk wrote:
> Fernando,
> 
> I am taking you extremely seriously ! In fact some of your emails make
> me even worried. 
> 
> You say in one email that encapsulation is allowed and that the event of
> encapsulation is the same as sourcing. 
> 
> So please notice text in network programming draft which says: 
> 
>    This document defines the SRv6 Network Programming concept and aims
>    at standardizing the main segment routing functions to enable the
>    creation of interoperable *overlays*
> *
> *
> I am not sure what is your definition of an overlay is but to me the
> most common way to create an overlay of any sort is via encapsulation. 
> 
> I would not mix the use cases of net programming which apparently
> happened and generated so much confusion around. Sure it could be used
> also without encapsulation, but does it make it immediately illegal ? 

I'm lost here.

Again:

* draft-ietf-spring-srv6-network-programming has a normative reference
to draft-voyer-6man-extension-header-insertion

* draft-voyer-6man-extension-header-insertion is about EH insertion

* EH insertion is forbidden by RFC8200


We have wasted way too much time and energy with all the methafores and
curious interpretations of standards by folks pushing and/or supporting
EH insertion, really.



-- 
Fernando Gont
SI6 Networks
e-mail: fgont@si6networks.com
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