Re: [6tisch] Fwd: I-D Action: draft-ietf-6tisch-6top-protocol-02.txt

Dear Jiliang,

see inline please,

2016-07-26 10:05 GMT+02:00 Jiliang Wang <jiliangwang99@gmail.com>:

> Thanks for the great work. This is Jiliang Wang from Tsinghua University.
> I am very interested in this version and I just have several questions.
>
> 1.       In 4.3.10, it says “If node A requests more cells than can fit
> in the response, node B MUST return code RC_ERR_NORES and an empty cell
> list.”
>
> 1.- Is there any fragmentation method to transmit all the cells if the
> requested cells cannot be fit in a response?
>
No, we keep it simple. The LIST command supports pagination. You can retry
with a smaller page size if it does not fit in a packet.

> 2.       Will the clear command result in inconsistency in current
> design? For example, a clear command is sent from A to B and the response
> from B to A is lost.
>
The CLEAR is not executed until the response is received. B side executes
the CLEAR after receiving the L2 ACK of the response message.

> 3.       Currently, the add command supports best-effort cell adding,
> i.e., when the cells is not enough, partial of the cells can be added – if
> I understand correctly.
>
>  –what is the purpose of best-effort adding. Why not just return success
> and fail?
>
Best effort minimizes the amount of data to be sent.

> best,
>
>
Kind regards,
Xavi

> -------------
> Jiliang Wang
> Assistant Professor
> http://tns.thss.tsinghua.edu.cn/~jiliang/
>
> On Tue, Jul 26, 2016 at 2:32 PM, Xavier Vilajosana <
> xvilajosana@eecs.berkeley.edu> wrote:
>
>> Dear all,
>>
>> we have submitted a revision of the 6top draft. It includes most of the
>> changes proposed in the WG meeting in Berlin.
>>
>> please send us your comments.
>>
>> kind regards,
>> Xavi
>>
>> ---------- Forwarded message ----------
>> From: <internet-drafts@ietf.org>
>> Date: 2016-07-26 8:30 GMT+02:00
>> Subject: [6tisch] I-D Action: draft-ietf-6tisch-6top-protocol-02.txt
>> To: i-d-announce@ietf.org
>> Cc: 6tisch@ietf.org
>>
>>
>>
>> A New Internet-Draft is available from the on-line Internet-Drafts
>> directories.
>> This draft is a work item of the IPv6 over the TSCH mode of IEEE
>> 802.15.4e of the IETF.
>>
>>         Title           : 6top Protocol (6P)
>>         Authors         : Qin Wang
>>                           Xavier Vilajosana
>>         Filename        : draft-ietf-6tisch-6top-protocol-02.txt
>>         Pages           : 28
>>         Date            : 2016-07-25
>>
>> Abstract:
>>    This document defines the 6top Protocol (6P), which enables
>>    distributed scheduling in 6TiSCH networks.  6P allows neighbor nodes
>>    in a 6TiSCH network to add/delete TSCH cells to one another.  6P is
>>    part of the 6TiSCH Operation Sublayer (6top), the next higher layer
>>    of the IEEE802.15.4 TSCH medium access control layer.  The 6top
>>    Scheduling Function (SF) decides when to add/delete cells, and
>>    triggers 6P Transactions.  Several SFs can be defined, each
>>    identified by a different 6top Scheduling Function Identifier (SFID).
>>    This document lists the requirements for an SF, but leaves the
>>    definition of the SF out of scope.  Different SFs are expected to be
>>    defined in future companion specifications.
>>
>>
>>
>> The IETF datatracker status page for this draft is:
>> https://datatracker.ietf.org/doc/draft-ietf-6tisch-6top-protocol/
>>
>> There's also a htmlized version available at:
>> https://tools.ietf.org/html/draft-ietf-6tisch-6top-protocol-02
>>
>> A diff from the previous version is available at:
>> https://www.ietf.org/rfcdiff?url2=draft-ietf-6tisch-6top-protocol-02
>>
>>
>> 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.
>>
>> Internet-Drafts are also available by anonymous FTP at:
>> ftp://ftp.ietf.org/internet-drafts/
>>
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>>
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>>
>
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>

-- 
Dr. Xavier Vilajosana Guillén
Research Professor
Wireless Networks Research Group
Internet Interdisciplinary Institute (IN3)
Universitat Oberta de Catalunya

+34 646 633 681| xvilajosana@uoc.edu | Skype: xvilajosana
http://xvilajosana.org
http://wine.rdi.uoc.edu/

Parc Mediterrani de la Tecnologia
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