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Re: Comments on draft-li-6man-enhanced-extension-header Sec 2.1

Mark Smith <markzzzsmith@gmail.com> Mon, 15 July 2019 08:03 UTC

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From: Mark Smith <markzzzsmith@gmail.com>
Date: Mon, 15 Jul 2019 18:02:55 +1000
Message-ID: <CAO42Z2xRy3ca+-GAtu=APNkpMVPk8FL9Uy+CtYXV-e7pADHAeQ@mail.gmail.com>
Subject: Re: Comments on draft-li-6man-enhanced-extension-header Sec 2.1
To: "C. M. Heard" <heard@pobox.com>
Cc: Brian E Carpenter <brian.e.carpenter@gmail.com>, 6man WG <ipv6@ietf.org>
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On Mon, 15 Jul 2019 at 14:22, C. M. Heard <heard@pobox.com> wrote:
>
> On Sun, Jul 14, 2019 at 9:00 PM Brian E Carpenter wrote:
> > Both segment routing and OAM are mentioned as use cases in
> > https://tools.ietf.org/html/draft-carpenter-limited-domains-09.
> > These are typically features that will be on the fast path by
> > configuration in a particular domain, and will not work properly
> > outside such a domain.
>
> Yes, operation in a limited domain is the best that can be
> expected. In such a domain, there would be no need for
> a new variant of the HbH Options Header.
>

I'd guess one plausible reason for HbH not being supported in the past
in fast path has been that customers haven't required it, and device
manufacturers have never developed it due to lack of customer demand.
Device vendors don't develop something unless they can somehow make it
pay.

If the demand is there, then current HbH EH will eventually be
supported in the fast path.

Regards,
Mark.


> Mike Heard
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