Dear all,
I had a through review of dff-07 with detailed comments. In the new revision,
my questions and concerns have been properly addressed -- thanks to all the
authors.
The mechanism is well documented, and I have tested the protocol in the
scenarios described in the applicability statement, which brings interesting
performance improvement.
Therefore, I would like to encourage the publication of it.
Just one more comment:
o In section 8 Protocol Parameters, it would be better to have some
limitations or recommendations for those parameters. For P_HOLD_TIME, I think
it's OK by saying "at least be MAX_HOP_LIMIT times the expected time to send a
Packet to a router on the same link.". It would be event better to give such
limitations to MAX_HOP_LIMIT. A regular value related to NET_DIAMETER won't
work, because DFF can have significant higher hop count and result in packet
drop. Maybe we can have something like "it MUST NOT be higher than the number
of routers in the DFF routing domain. If the number of routers is greater than
255, it is set to 255 by default."
best
Jiazi
On Feb 8, 2013, at 7:22 PM, Ralph Droms
<rdroms(_dot_)ietf(_at_)gmail(_dot_)com> wrote:
draft-cardenas-dff is under consideration for publication as an AD-sponsored
individual submission Experimental RFC. I agreed to sponsor it for
publication because it doesn't really fit in any existing working groups and
the requested publication status is Experimental. As part of the review
process, the document is in a 2-week IETF last call. The last call
announcement is included below. To ensure the quality of the document, it
would be helpful to get reviews from manet WG participants (posted to the
ietf(_at_)ietf(_dot_)org discussion list).
Thanks.
- Ralph
=====
The IESG has received a request from an individual submitter to consider
the following document:
- 'Depth-First Forwarding in Unreliable Networks (DFF)'
<draft-cardenas-dff-09.txt> as Experimental RFC
The IESG plans to make a decision in the next few weeks, and solicits
final comments on this action. Please send substantive comments to the
ietf(_at_)ietf(_dot_)org mailing lists by 2013-02-24. Exceptionally, comments
may be
sent to iesg(_at_)ietf(_dot_)org instead. In either case, please retain the
beginning of the Subject line to allow automated sorting.
Abstract
This document specifies the "Depth-First Forwarding" (DFF) protocol
for IPv6 networks, a data forwarding mechanism that can increase
reliability of data delivery in networks with dynamic topology and/or
lossy links. The protocol operates entirely on the forwarding plane,
but may interact with the routing plane. DFF forwards data packets
using a mechanism similar to a "depth-first search" for the
destination of a packet. The routing plane may be informed of
failures to deliver a packet or loops. This document specifies the
DFF mechanism both for IPv6 networks (as specified in RFC2460) and in
addition also for LoWPAN "mesh-under" networks (as specified in
RFC4944).
The file can be obtained via
http://datatracker.ietf.org/doc/draft-cardenas-dff/
IESG discussion can be tracked via
http://datatracker.ietf.org/doc/draft-cardenas-dff/ballot/
The following IPR Declarations may be related to this I-D:
http://datatracker.ietf.org/ipr/1645/
http://datatracker.ietf.org/ipr/1646/
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