Re: FW: New Version Notification for draft-bonica-6man-comp-rtg-hdr-18.txt

Robert Raszuk <robert@raszuk.net> Wed, 13 May 2020 21:50 UTC

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From: Robert Raszuk <robert@raszuk.net>
Date: Wed, 13 May 2020 23:50:30 +0200
Message-ID: <CAOj+MMFx_ODCbxO1k3OzrfLpjbYi1hWDTKt25YPbFFkf3EkMzA@mail.gmail.com>
Subject: Re: FW: New Version Notification for draft-bonica-6man-comp-rtg-hdr-18.txt
To: Ron Bonica <rbonica=40juniper.net@dmarc.ietf.org>
Cc: 6man <6man@ietf.org>, SPRING WG <spring@ietf.org>
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WGs,

If someone is to judge a document's maturity level by the number of its
version iterations with three new versions within the last 3 hours this
draft is getting really stable pretty fast ! ;-)

But seriously 6man just published SRH RFC8754.

Shouldn't we first get some decent and real operational experience with SRH
for a year or two before starting a new proposal with a subset of its
capabilities ?

If SRH is just too complex, why during the IETF WG process and IETF review
that was not questioned and addressed ? In my books use of TLVs is a
feature not a bug.

New proposal to essentially do the same should not be taken on right now -
instead pragmatic approach would be to take out those elements which are
not operationally needed or add those which are missing should be worked on
after some time and RFC8754-bis could be then issued.

Note that if we are just about shorter SIDs like 16 or 32 bits that is
possible today with the vSID proposal and current SRH format.
https://tools.ietf.org/html/draft-decraene-spring-srv6-vlsid-03

Last - can anyone imagine operational complexity when a network would
consist of some routers which can only do CRH and some which can only
process SRH ? Leave alone the fact that both headers are completely
incompatible with each other.

Many thx,
Robert.


In this draft version, I rename the Routing header type. It was called the
> Compressed Routing Header. Now it is called the Compact Routing Header.
>

...


> A new version of I-D, draft-bonica-6man-comp-rtg-hdr-18.txt
> has been successfully submitted by Ron Bonica and posted to the IETF
> repository.
>
> Name:           draft-bonica-6man-comp-rtg-hdr
> Revision:       18
> Title:          The IPv6 Compact Routing Header (CRH)
> Document date:  2020-05-13
> Group:          Individual Submission
> Pages:          14
> URl:
> https://www.ietf.org/internet-drafts/draft-bonica-6man-comp-rtg-hdr-18.txt
> Status:
> https://datatracker.ietf.org/doc/draft-bonica-6man-comp-rtg-hdr
> Htmlized:
> https://tools.ietf.org/html/draft-bonica-6man-comp-rtg-hdr-18
> Htmlized:
> https://datatracker.ietf.org/doc/html/draft-bonica-6man-comp-rtg-hdr
> Diff:
> https://www.ietf.org/rfcdiff?url2=draft-bonica-6man-comp-rtg-hdr-18
>
> Abstract:
>    This document defines two new Routing header types.  Collectively,
>    they are called the Compact Routing Headers (CRH).  Individually,
>    they are called CRH-16 and CRH-32.
>