Re: [lisp] I-D Action: draft-ietf-lisp-gpe-15.txt

"Fabio Maino (fmaino)" <fmaino@cisco.com> Mon, 01 June 2020 05:53 UTC

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From: "Fabio Maino (fmaino)" <fmaino@cisco.com>
To: Luigi Iannone <ggx@gigix.net>, "lisp@ietf.org" <lisp@ietf.org>, "draft-ietf-lisp-gpe@ietf.org" <draft-ietf-lisp-gpe@ietf.org>
Thread-Topic: [lisp] I-D Action: draft-ietf-lisp-gpe-15.txt
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Date: Mon, 1 Jun 2020 05:53:13 +0000
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Subject: Re: [lisp] I-D Action: draft-ietf-lisp-gpe-15.txt
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Ciao Luigi, 
The reason is to allow to experiment with shim headers and non-shim headers at the same time. As you may remember shim headers have a more fixed encodng and must be located before non-shim headers. 

Thanks,
Fabio



´╗┐On 5/31/20, 10:47 PM, "Luigi Iannone" <ggx@gigix.net> wrote:

    Thank you for updating the document.

    I have a quick question.

    Looking at the next protocol values we now see:

     0x7E to 0x7F:  Experimentation and testing	
     0x80 to 0xFD:  Unassigned (shim headers)	
     0xFE to 0xFF:  Experimentation and testing

    Can you provide a rationale why not having just one bigger experimentation and testing range instead of two with an unassigned range in the middle?

    Thanks

    Ciao

    L.



    > On 1 Jun 2020, at 07:41, internet-drafts@ietf.org wrote:
    > 
    > 
    > A New Internet-Draft is available from the on-line Internet-Drafts directories.
    > This draft is a work item of the Locator/ID Separation Protocol WG of the IETF.
    > 
    >        Title           : LISP Generic Protocol Extension
    >        Authors         : Fabio Maino
    >                          Jennifer Lemon
    >                          Puneet Agarwal
    >                          Darrel Lewis
    >                          Michael Smith
    > 	Filename        : draft-ietf-lisp-gpe-15.txt
    > 	Pages           : 15
    > 	Date            : 2020-05-31
    > 
    > Abstract:
    >   This document describes extentions to the Locator/ID Separation
    >   Protocol (LISP) Data-Plane, via changes to the LISP header, to
    >   support multi-protocol encapsulation.
    > 
    > 
    > The IETF datatracker status page for this draft is:
    > https://datatracker.ietf.org/doc/draft-ietf-lisp-gpe/
    > 
    > There are also htmlized versions available at:
    > https://tools.ietf.org/html/draft-ietf-lisp-gpe-15
    > https://datatracker.ietf.org/doc/html/draft-ietf-lisp-gpe-15
    > 
    > A diff from the previous version is available at:
    > https://www.ietf.org/rfcdiff?url2=draft-ietf-lisp-gpe-15
    > 
    > 
    > Please note that it may take a couple of minutes from the time of submission
    > until the htmlized version and diff are available at tools.ietf.org.
    > 
    > Internet-Drafts are also available by anonymous FTP at:
    > ftp://ftp.ietf.org/internet-drafts/
    > 
    > 
    > _______________________________________________
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