Dear all:
We are still not there yet for the compression of RPL artifacts! But good
progress was made.
We have most of the compression done, what's left is the dispatch game.
This version of eth draft proposes 3 ways to adapt 6LoWPAN while maintaining
backward compatibility with RFC4944, and our hope is that we select one in
Prague so we can ship the draft. Option 1 is what we proposed at the last IETF,
with an alt twist in it. Option 2 and 3 are new.
Please consider those options, and come discuss them at 6Lo:
Option 1 considers that a network where this specification applies
is physically separate from a network where the Mesh Header
defined in [RFC4944] is used. With that assumption, the Mesh
Header dispatch space can be reused. A variation is proposed
whereby the NALP pattern 00xxxxxx is reused instead of the Mesh
Header pattern.
Option 2 defines a new Separator Dispatch value that indicates
that no Mesh Header is present in the remainder of the packet. If
the 10xxxxxx pattern is found in the packet after this new
Separator Dispatch, then this specification applies. It is
suggested that the new Separator Dispatch would also enable to
reuse patterns 00xxxxxx and 11xxxxxx in the future.
Option 3 uses values in pattern 11xxxxxx that are free to this
date, avoiding patterns 11000xxx and 11100xxx that are used for
the Fragmentation Header as defined in [RFC4944].
Cheers,
Pascal
-----Original Message-----
From: [email protected] [mailto:[email protected]]
Sent: mardi 30 juin 2015 18:57
To: Robert Cragie; Pascal Thubert (pthubert); Pascal Thubert (pthubert);
Laurent Toutain; Carsten Bormann; Laurent Toutain; Dr. Carsten Bormann; Robert
Cragie
Subject: New Version Notification for draft-thubert-6lo-routing-dispatch-04.txt
A new version of I-D, draft-thubert-6lo-routing-dispatch-04.txt
has been successfully submitted by Pascal Thubert and posted to the IETF
repository.
Name: draft-thubert-6lo-routing-dispatch
Revision: 04
Title: A Routing Header Dispatch for 6LoWPAN
Document date: 2015-06-30
Group: Individual Submission
Pages: 23
URL:
https://www.ietf.org/internet-drafts/draft-thubert-6lo-routing-dispatch-04.txt
Status:
https://datatracker.ietf.org/doc/draft-thubert-6lo-routing-dispatch/
Htmlized:
https://tools.ietf.org/html/draft-thubert-6lo-routing-dispatch-04
Diff:
https://www.ietf.org/rfcdiff?url2=draft-thubert-6lo-routing-dispatch-04
Abstract:
This specification provides a new 6LoWPAN dispatch type for use in
Route-over and mixed Mesh-under and Route-over topologies, that
reuses the encoding of the mesh type defined in RFC 4944 for pure
Mesh-under topologies. This specification also defines a method to
compress RPL Option (RFC6553) information and Routing Header type 3
(RFC6554), an efficient IP-in-IP technique and opens the way for
further routing techniques. This extends 6LoWPAN Transmission of
IPv6 Packets (RFC4944), and is applicable to new link-layer types
where 6LoWPAN is being defined.
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
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