RE: HBH Obsolete? (was Review of draft-ietf-6man-hbh-header-handling-01)
Ronald Bonica <rbonica@juniper.net> Sun, 03 April 2016 15:04 UTC
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From: Ronald Bonica <rbonica@juniper.net>
To: Brian E Carpenter <brian.e.carpenter@gmail.com>, Michael Richardson <mcr+ietf@sandelman.ca>, ipv6 <ipv6@ietf.org>
Subject: RE: HBH Obsolete? (was Review of draft-ietf-6man-hbh-header-handling-01)
Thread-Topic: HBH Obsolete? (was Review of draft-ietf-6man-hbh-header-handling-01)
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Date: Sun, 03 Apr 2016 15:04:31 +0000
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Cc: "C. M. Heard" <heard@pobox.com>
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Brian, Even of somebody saw a Jumbogram at an IXP, it wouldn't be so bad. The IPv6 header would have: - a packet length of 0 - a next header of HBH If the receiving node didn't recognize Jumbograms, wouldn't it discard the packet and send an ICMP Parameter Problem to the source? Ron > -----Original Message----- > From: ipv6 [mailto:ipv6-bounces@ietf.org] On Behalf Of Brian E Carpenter > Sent: Friday, March 25, 2016 11:06 PM > To: Michael Richardson <mcr+ietf@sandelman.ca>; ipv6 <ipv6@ietf.org> > Cc: C. M. Heard <heard@pobox.com> > Subject: Re: HBH Obsolete? (was Review of draft-ietf-6man-hbh-header- > handling-01) > > On 26/03/2016 07:35, Michael Richardson wrote: > > > > C. M. Heard <heard@pobox.com> wrote: > > > Indeed, the question arises whether allowing a router to ignore these > > > options beaks them, or not. Clearly so for Jumbo Payload, > > I dispute that, as far as the real world goes. Nobody ever expected the > jumbo payload to be used outside a "consenting adults" scenario; the > requirement to send back ICMP on discard is really icing on the jumbo cake. > As some words in > RFC3765 tells you, the path has to be pretty much hand-crafted: > > " On links with configurable MTUs, the MTU must not be configured to a > value greater than 65,575 octets if there are nodes attached to that > link that do not support the Jumbo Payload option and it can not be > guaranteed that the Jumbo Payload option will not be sent to those > nodes." > > So in practice, it really doesn't matter what the non-supporting router does. > Did anybody ever see one of these things at a peering link or an IXP? I very > much doubt it. > > Brian > > > > > but it's > > > unclear to me why RPL, MPL, and DFF need to be specified as other > than > > > ignore if unrecognized. > > > > I agree that it's unclear if there is real benefit. > > > > -- > > Michael Richardson <mcr+IETF@sandelman.ca>, Sandelman Software > Works > > -= IPv6 IoT consulting =- > > > > > > > > > > > > -------------------------------------------------------------------- > > IETF IPv6 working group mailing list > > ipv6@ietf.org > > Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 > > -------------------------------------------------------------------- > > > > -------------------------------------------------------------------- > IETF IPv6 working group mailing list > ipv6@ietf.org > Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 > --------------------------------------------------------------------
- HBH Obsolete? (was Review of draft-ietf-6man-hbh-… Ronald Bonica
- Re: HBH Obsolete? (was Review of draft-ietf-6man-… joel jaeggli
- Re: HBH Obsolete? (was Review of draft-ietf-6man-… Warren Kumari
- Re: HBH Obsolete? (was Review of draft-ietf-6man-… t.petch
- Re: HBH Obsolete? (was Review of draft-ietf-6man-… 神明達哉
- RE: HBH Obsolete? (was Review of draft-ietf-6man-… Ronald Bonica
- Re: HBH Obsolete? (was Review of draft-ietf-6man-… Pascal Thubert (pthubert)
- RE: HBH Obsolete? (was Review of draft-ietf-6man-… Templin, Fred L
- Re: HBH Obsolete? (was Review of draft-ietf-6man-… Ca By
- Re: HBH Obsolete? (was Review of draft-ietf-6man-… Brian E Carpenter
- Re: HBH Obsolete? (was Review of draft-ietf-6man-… Brian E Carpenter
- HBH Obsolete? (was Review of draft-ietf-6man-hbh-… Tim Martin (tmartin)
- Re: HBH Obsolete? (was Review of draft-ietf-6man-… C. M. Heard
- RE: HBH Obsolete? (was Review of draft-ietf-6man-… Pascal Thubert (pthubert)
- Re: HBH Obsolete? (was Review of draft-ietf-6man-… Brian Haberman
- Re: HBH Obsolete? (was Review of draft-ietf-6man-… Michael Richardson
- Re: HBH Obsolete? (was Review of draft-ietf-6man-… Michael Richardson
- RE: HBH Obsolete? (was Review of draft-ietf-6man-… Ronald Bonica
- RE: HBH Obsolete? (was Review of draft-ietf-6man-… Ronald Bonica
- Re: HBH Obsolete? (was Review of draft-ietf-6man-… Michael Richardson
- Re: HBH Obsolete? (was Review of draft-ietf-6man-… Brian E Carpenter
- Re: HBH Obsolete? (was Review of draft-ietf-6man-… Brian E Carpenter
- Re: HBH Obsolete? (was Review of draft-ietf-6man-… Pascal Thubert (pthubert)
- Re: HBH Obsolete? (was Review of draft-ietf-6man-… C. M. Heard
- RE: HBH Obsolete? (was Review of draft-ietf-6man-… Ronald Bonica
- Re: HBH Obsolete? (was Review of draft-ietf-6man-… Michael Richardson
- RFC6553 headers if HBH Obsolete? (was Review of d… Michael Richardson
- Re: HBH Obsolete? (was Review of draft-ietf-6man-… Brian E Carpenter
- Re: HBH Obsolete? (was Review of draft-ietf-6man-… 神明達哉
- RE: HBH Obsolete? (was Review of draft-ietf-6man-… Pascal Thubert (pthubert)
- Re: HBH Obsolete? (was Review of draft-ietf-6man-… Ronald Bonica
- RE: HBH Obsolete? (was Review of draft-ietf-6man-… Ronald Bonica
- Re: HBH Obsolete? (was Review of draft-ietf-6man-… Brian E Carpenter