[icnrg] Fwd: New Version Notification for draft-gundogan-icnrg-ccnx-timetlv-01.txt

Cenk Gündoğan <mail+ietf@gundogan.net> Mon, 09 March 2020 19:00 UTC

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From: Cenk Gündoğan <mail+ietf@gundogan.net>
To: ICNRG <icnrg@irtf.org>
Date: Mon, 09 Mar 2020 20:00:48 +0100
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Subject: [icnrg] Fwd: New Version Notification for draft-gundogan-icnrg-ccnx-timetlv-01.txt
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we updated our CCNx Time TLV draft to include the following changes:

* we removed the previously included discussion on using a time base TLV
  for (absolute) RecommendedCacheTime (RCT) TLVs in content objects. The
  current approach interprets RCT as absolute (normal behavior) for UTC
  timestamps (8 octets), and as relative for a compact timestamp (1

* we added an explicit configuration for exponent, mantissa, and bias to
  Section 4. That configuration yields a milli second resolution for
  lower time values and can also (with low resolution) reaches values
  has high as ~4 years.

* we added a few alternatives to section 5 (CCNx protocol integration)
  to provide more material for discussions. This topic needs to converge
  to a distinct solution, though.

As always, any feedback is highly appreciated.


On Mon, Mar 09 2020 at 19:42 +0100, internet-drafts@ietf.org wrote:

> A new version of I-D, draft-gundogan-icnrg-ccnx-timetlv-01.txt
> has been successfully submitted by Cenk Gundogan and posted to the
> IETF repository.
> Name:		draft-gundogan-icnrg-ccnx-timetlv
> Revision:	01
> Title:		An Alternative Delta Time encoding for CCNx using Interval Time from RFC5497
> Document date:	2020-03-09
> Group:		Individual Submission
> Pages:		8
> URL:            https://www.ietf.org/internet-drafts/draft-gundogan-icnrg-ccnx-timetlv-01.txt
> Status:         https://datatracker.ietf.org/doc/draft-gundogan-icnrg-ccnx-timetlv/
> Htmlized:       https://tools.ietf.org/html/draft-gundogan-icnrg-ccnx-timetlv-01
> Htmlized:       https://datatracker.ietf.org/doc/html/draft-gundogan-icnrg-ccnx-timetlv
> Diff:           https://www.ietf.org/rfcdiff?url2=draft-gundogan-icnrg-ccnx-timetlv-01
> Abstract:
>    CCNx utilizes Delta Time for a number of functions.  When using CCNx
>    in environments with constrained nodes and/or bandwidth constrained
>    networks, it is valuable to have a compressed representation of delta
>    time.  In order to do so, either accuracy or dynamic range has to be
>    sacrificed.  Since the current uses of delta time do not require both
>    simultaneously, one can consider a logarithmic encoding such as that
>    specified in RFC5497.  This document updates _CCNx messages in TLV
>    Format_ (RFC8609) to specify this alternative encoding.
> 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.
> The IETF Secretariat

Cenk Gündoğan

Hamburg University of Applied Sciences
Dept. of Computer Science / Internet Technologies Group
Berliner Tor 7, 20099 Hamburg, Germany
Fon: +49 40 42875 - 8426
Mail: cenk.guendogan@haw-hamburg.de
Web: https://www.inet.haw-hamburg.de/