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Re: [spring] Penultimate Segment Popping and RFC8200 (Was Re: We don't seem to be following our processes (Re: Network Programming - Penultimate Segment Popping))

Fernando Gont <fgont@si6networks.com> Wed, 11 December 2019 22:49 UTC

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To: Robert Raszuk <robert@raszuk.net>
Cc: Bruno Decraene <bruno.decraene@orange.com>, Ron Bonica <rbonica=40juniper.net@dmarc.ietf.org>, SPRING WG <spring@ietf.org>, "int-ads@ietf.org" <int-ads@ietf.org>, Andrew Alston <Andrew.Alston@liquidtelecom.com>, rtg-ads <rtg-ads@ietf.org>, Bob Hinden <bob.hinden@gmail.com>, Brian E Carpenter <brian.e.carpenter@gmail.com>, Ole Troan <otroan@employees.org>, Suresh Krishnan <Suresh@kaloom.com>
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From: Fernando Gont <fgont@si6networks.com>
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Date: Wed, 11 Dec 2019 17:34:59 -0500
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Subject: Re: [spring] Penultimate Segment Popping and RFC8200 (Was Re: We don't seem to be following our processes (Re: Network Programming - Penultimate Segment Popping))
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On 11/12/19 03:29, Robert Raszuk wrote:
> 
> RFC 2473  
> 
> Quotes have been already provided to the lists. 
> 
> When encapsulating a packet I can put whatever EH is defined and when
> decapsulating the packet I can remove any EH I inserted before. I "own"
> the new IPv6 header. Very simple. It is like taking the cars on a ferry. 
> 
> Your original packet (call it end to end ... call it original src going
> to final/ultimate destination) is just a payload. 
> 
> I can not believe that anyone can not grasp such basic concept. 

The name says it all: "Penultimate Segment Popping". You remove the SRH
at a place other than the final destination.

Thanks,
-- 
Fernando Gont
SI6 Networks
e-mail: fgont@si6networks.com
PGP Fingerprint: 6666 31C6 D484 63B2 8FB1 E3C4 AE25 0D55 1D4E 7492

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