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Subject: [Roll] roll-rpl-industrial-applicability
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Some comments on draft-phinney-roll-rpl-industrial-applicability-00.
I promised myself during the last IETF that I'd read it, and new year's
day was a good to do that.

pg4:
>   A field device that belongs to an instance uses the OF to determine
>   which DODAG and which Version of that DODAG the device should join.

I did not think that the OF would tell us which Version of a DODAG to
use.  The version simply increments... I guess if the new values from
the new version do not satisfy the OF, one could stay with the
previously calculated parents, etc.

I was very pleased to read section 3.1.  Deployment scenarii.
In it, 6 scenarios are described:
     P1: Construction or major modification phase
     P2: Planned startup phase
     P3: Normal operation phase
     P4: Planned shutdown phase
     P5: Plant decommissioning phase.
     P6: Post-emergency recovery and repair phase.

The analysis that follows concerns me:

>   The deployment scenarios for wireless LLN devices may be different in
>   each of these phases.  In particular, during the Construction or
>   major modification phase (P1), LLN devices may be installed months
>   before the intended LLN can become usefully operational (because
>   needed routers and infrastructure devices are not yet installed or
>   active), and there are likely to be many personnel in whom the plant
>   owner/operator has only limited trust, such as subcontractors and
>   others in the plant area who have undergone only a cursory background
>   investigation (if any at all).  In general, during this phase, plant

I very much wish that this had appeared in RFC5673 as input into the
security mechanism.  I think that a major limitation in the current
documents in the security area here.  I could go on awhile about how I
think things should work to solve this; I didn't do that before, because
I didn't think that there was real requirements for a system a flexible
as I envision.=20=20=20

NOTE: this is not a fault of this document, it's a failure of our
      requirements process for security.

draft-phinney-roll-rpl-industrial-applicability-00 recaps too many
things, and I find is way too chatty.  I expect an applicability
statement to be more to the point.  This relates to section 3 mostly, I
think.

The chart in section 3.3:

+---------------------+------------------------------------------------+
|   Phase \  Class    |   0       1       2       3       4       5    |
+=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D+=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D+
|   Construction      |                   X       X       X       X    |
+---------------------+------------------------------------------------+
|   Planned startup   |                   X       X       X       X    |
+---------------------+------------------------------------------------+
|   Normal operation  |                           ?       ?       ?    |
+---------------------+------------------------------------------------+
|   Planned shutdown  |                   X       X       X       X    |
+---------------------+------------------------------------------------+
|Plant decommissioning|                   X       X       X       X    |
+---------------------+------------------------------------------------+
| Recovery and repair |   X       X       X       X       X       X    |
+---------------------+------------------------------------------------+

also is of concern. What it says is that RPL can't be used for=20

      *  Class 0: Emergency action - Always a critical function
      *  Class 1: Closed loop regulatory control - Often a critical
         function
      *  Class 2: Closed loop supervisory control - Usually non-critical
         function

during any phase, except during repair.  And, that we don't even know if
it can be used for Normal operation!  That's hardly an huge endorsement!

Thank you kindly for this -00 document.  I realize that section 5 is
where the meat will go, and I look forward to some clear recommendations
here.

=2D-=20
]       He who is tired of Weird Al is tired of life!           |  firewall=
s  [
]   Michael Richardson, Sandelman Software Works, Ottawa, ON    |net archit=
ect[
] mcr@sandelman.ottawa.on.ca http://www.sandelman.ottawa.on.ca/ |device dri=
ver[
   Kyoto Plus: watch the video <http://www.youtube.com/watch?v=3Dkzx1ycLXQS=
E>
	               then sign the petition.=20



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From iliasr@gmail.com  Wed Jan  4 07:30:13 2012
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Subject: [Roll] DAG repair when Root is unreachable
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Hello all,

while working with RPL (using the Contiki implementation) I came along
an issue which is not clearly defined in the specification, and in my
mind it seems to be important in LLNs when failures and the need to
repair a DAG occur.

When a node becomes unreachable for some reason and the failure is not
transient, RPL will initiate a local repair mechanism in order for a
new route towards the DAG Root to be found quickly. The node that
initiates the local repair will poison its subtree with INF rank DIOs,
causing parent re-selection. Since the local repair mechanism is not
explicitly specified in the specification, the question that I am
facing is, what happens when the parent that becomes unreachable is
the very DAG root itself? Is it possible (and how) for the nodes to
join another DAG within the same instance (if present)?

I was unable to locate a satisfying response to this in the
specification. Quoting section 3.7.2 paragraph 2, "For example,
consider the local repair mechanism that allows a node to detach from
the DODAG, advertise a rank of INFINITE_RANK (in order to poison its
routes / inform its sub-DODAG), and then to re-attach to the DODAG".
This implicitly allows a repairing/poisoning node to join another
present DAG. However, it is not clearly specified how this situation
should be handled.

Is this a matter left to the implementation, or is it under discussion
for the specification? I would be very interested in your input on
this.

Thank you all for your time!
Best regards,
Ilias Rinis

From pthubert@cisco.com  Wed Jan  4 08:53:37 2012
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From: "Pascal Thubert (pthubert)" <pthubert@cisco.com>
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Hi Ilias:

> When a node becomes unreachable for some reason and the failure is not
transient, RPL will initiate a local repair mechanism in order for a new
route towards the DAG Root to be found quickly. The node that initiates
the local repair will poison its subtree with INF rank DIOs, causing
parent re-selection. Since the local repair mechanism is not explicitly
specified in the specification, the question that I am facing is, what
happens when the parent that becomes unreachable is the very DAG root
itself? Is it possible (and how) for the nodes to join another DAG
within the same instance (if present)?

[Pascal] Yes, the nodes would distribute over alternate DODAGs within
the same instance. The term in the spec for that action is jump. At some
point the text for jumping was merged into section 8.2.2.4 and the
result is visible there in item 4, which is poorly related to the title
of the section. I think that the title should be fixed prior to
publication so that " within a DODAG Version" either becomes "within an
instance" or simply goes away.

If the is no more DODAG to attach to the node either poisons and stays
there by itself, or becomes a floating root of its own DODAG, in which
case communication within that floating DODAG is still possible.

 I hope that helps : )

Pascal

From pal@cs.stanford.edu  Wed Jan  4 09:33:07 2012
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Subject: Re: [Roll] DAG repair when Root is unreachable
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On Jan 4, 2012, at 7:30 AM, Ilias Rinis wrote:

> Hello all,
>=20
> while working with RPL (using the Contiki implementation) I came along
> an issue which is not clearly defined in the specification, and in my
> mind it seems to be important in LLNs when failures and the need to
> repair a DAG occur.
>=20
> When a node becomes unreachable for some reason and the failure is not
> transient, RPL will initiate a local repair mechanism in order for a
> new route towards the DAG Root to be found quickly. The node that
> initiates the local repair will poison its subtree with INF rank DIOs,
> causing parent re-selection. Since the local repair mechanism is not
> explicitly specified in the specification, the question that I am
> facing is, what happens when the parent that becomes unreachable is
> the very DAG root itself? Is it possible (and how) for the nodes to
> join another DAG within the same instance (if present)?
>=20
> I was unable to locate a satisfying response to this in the
> specification. Quoting section 3.7.2 paragraph 2, "For example,
> consider the local repair mechanism that allows a node to detach from
> the DODAG, advertise a rank of INFINITE_RANK (in order to poison its
> routes / inform its sub-DODAG), and then to re-attach to the DODAG".
> This implicitly allows a repairing/poisoning node to join another
> present DAG. However, it is not clearly specified how this situation
> should be handled.
>=20
> Is this a matter left to the implementation, or is it under discussion
> for the specification? I would be very interested in your input on
> this.
>=20
> Thank you all for your time!
> Best regards,
> Ilias Rinis

Ilias,

The current specification does not state exactly how this should be =
done, and it's not under discussion for the current specification. But =
if, through experience and use we find there are particular recommended =
strategies or algorithms, then I'd see no reason why those couldn't be =
specified as guidance to implementers. It seems something better suited =
to writing down what emerges as common practice than specifying a new =
idea.

Phil


From iliasr@gmail.com  Thu Jan  5 05:20:21 2012
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From: Ilias Rinis <iliasr@gmail.com>
To: Philip Levis <pal@cs.stanford.edu>
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Subject: Re: [Roll] DAG repair when Root is unreachable
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Hello again,

thank you both for your answers and your interest! @Pascal, I studied
the section that you mention, indeed the title is a bit misleading!
Thanks for guiding me to it! @Phil, what you say makes perfectly good
sense; I feel that it would be interesting at some point to see
something relevant in the spec.

Thank you again, and best regards,
Ilias

On Wed, Jan 4, 2012 at 6:33 PM, Philip Levis <pal@cs.stanford.edu> wrote:
>
> On Jan 4, 2012, at 7:30 AM, Ilias Rinis wrote:
>
>> Hello all,
>>
>> while working with RPL (using the Contiki implementation) I came along
>> an issue which is not clearly defined in the specification, and in my
>> mind it seems to be important in LLNs when failures and the need to
>> repair a DAG occur.
>>
>> When a node becomes unreachable for some reason and the failure is not
>> transient, RPL will initiate a local repair mechanism in order for a
>> new route towards the DAG Root to be found quickly. The node that
>> initiates the local repair will poison its subtree with INF rank DIOs,
>> causing parent re-selection. Since the local repair mechanism is not
>> explicitly specified in the specification, the question that I am
>> facing is, what happens when the parent that becomes unreachable is
>> the very DAG root itself? Is it possible (and how) for the nodes to
>> join another DAG within the same instance (if present)?
>>
>> I was unable to locate a satisfying response to this in the
>> specification. Quoting section 3.7.2 paragraph 2, "For example,
>> consider the local repair mechanism that allows a node to detach from
>> the DODAG, advertise a rank of INFINITE_RANK (in order to poison its
>> routes / inform its sub-DODAG), and then to re-attach to the DODAG".
>> This implicitly allows a repairing/poisoning node to join another
>> present DAG. However, it is not clearly specified how this situation
>> should be handled.
>>
>> Is this a matter left to the implementation, or is it under discussion
>> for the specification? I would be very interested in your input on
>> this.
>>
>> Thank you all for your time!
>> Best regards,
>> Ilias Rinis
>
> Ilias,
>
> The current specification does not state exactly how this should be done,=
 and it's not under discussion for the current specification. But if, throu=
gh experience and use we find there are particular recommended strategies o=
r algorithms, then I'd see no reason why those couldn't be specified as gui=
dance to implementers. It seems something better suited to writing down wha=
t emerges as common practice than specifying a new idea.
>
> Phil
>

From adrian@olddog.co.uk  Fri Jan  6 12:10:34 2012
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From: "Adrian Farrel" <adrian@olddog.co.uk>
To: "'Omprakash Gnawali'" <gnawali@cs.uh.edu>
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Hi Omprakash,

Was the action with me? I think I fumbled and no-one chased me :-(

> Adrian, thanks for the feedback. I have incorporated some of your
> comments, but there are some items I wanted to run by you before
> posting a new version:
>=20
> > In progressing the OG0 draft we learnt that there was no clear
> > understanding of what an objective function is. I think your draft =
does
> > a good job at explaining, but in an attempt to learn from the past, =
can
> > you please have a look at the text that got added to the OF0 =
document to
> > see whether anything can be added here.
>=20
> I looked through both the drafts and also rpl draft. I could mention
> the relevant sections of RPL draft in the first sentence of section 1:
>=20
> An objective function specifies how RPL [I-D.ietf-roll-rpl] selects
>    paths.
>=20
> to:
>=20
> An objective function describes how RPL [I-D.ietf-roll-rpl] selects
>    paths within the role defined in Section 3.2.1 and using the
>    guidelines listed in Section 14 of [I-D.ietf-roll-rpl].
>=20
> Isn't that better than every OF draft describing what an OF is and
> what it is supposed to do?

I understand where you are coming from.

I think that, while section 14 of draft-ietf-roll-rpl is perfectly =
clear, our
non-RPL reviewers simply did not get the fact that an OF is an outcome =
not an
algorithm. Thus, when RPL was reviewed, it was read as though an OF was =
an
algorithm and no problems arose. However, when draft-ietf-roll-of0 was =
reviewed
there was huge confusion and we added paras 2 and 3 to Section 1 before =
the
reviewers "got it".

What I suggest here is that we take the statement of abstraction from =
OF0 and
fold it into your I-D. How about...

OLD
   An objective function specifies how RPL [I-D.ietf-roll-rpl] selects
   paths.  Objective functions can choose paths based on routing metrics
   or constraints.  For example, if an RPL instance uses an objective
   function that minimizes hop-count, RPL will select paths with minimum
   hop count.
NEW
   An objective function (OF) describes how RPL [I-D.ietf-roll-rpl]=20
   selects paths.  An OF is not an algorithm, but states the outcome of
   the process or algorithm used by a RPL node to select and optimize=20
   routes within a RPL Instance based on the information objects=20
   available (such as routing metrics and constraints).  For example, if
   a RPL instance has an objective function that minimizes hop-count,
   RPL will select paths with minimum hop-count.

   The separation of OFs from the core protocol specification allows RPL
   to be adapted to meet the different optimization criteria required by
   the wide range of deployments, applications, and network designs.

   Section 14 of [I-D.ietf-roll-rpl] sets out guidelines for the
   creation, specification, and implementation of OFs.
END

> > Why is "Minimum Rank Objective Function with Hysteresis" MRHOF not
> > MROFH?
>=20
> We can change the name to Minimum Rank Hysteresis Objective Function.

wfm

> > During the review process for OF0 we ended up adding the following
> > paragraph. Would you consider adding something similar to make this
> > point crystal clear?
> >
> > =A0 The RPL specification [I-D.ietf-roll-rpl] requires the use of a
> > =A0 common OF by all nodes in a network. =A0The possible use of =
multiple
> > =A0 OFs with a single network is for further study.
>=20
> Do you prefer to repeat this in each OF draft, even though it is
> already mentioned in rpl draft?

Well, we ended up having to add this short paragraph in order to get OF0 =
through
IESG review. You can choose to add the paragraph or fight the IESG =
later. I
always prefer the easy approach. Does it detract from the quality of =
your
document?

> > Section 5.1
> >
> > Can you add a statement on default values?
>=20
> Here is the current statement on default values:
>=20
> The parameter values are assigned depending on the selected metric.
>    The best values for these parameters should be experimentally
>    determined.  The working group has long experience routing with the
>    ETX metric.  Based on those experiences, these values are
>    RECOMMENDED:
>=20
> If you think it would be better to clarify some aspect of the above
> statement or something
> additional, I am happy to add those statements. I will put the above =
statement
> and the table of default values as a separate subsection (5.1) and
manageability
> will become 5.2.

The text you quote is not in section 5.1 and does not mention defaults.=20

How about

OLD
   The parameters MAX_LINK_METRIC, MAX_PATH_COST, MIN_PATH_COST,
   PARENT_SWITCH_THRESHOLD, PARENT_SET_SIZE, and ALLOW_FLOATING_ROOT
   should be configurable.
NEW
   The parameters MAX_LINK_METRIC, MAX_PATH_COST, MIN_PATH_COST,   =20
   PARENT_SWITCH_THRESHOLD, PARENT_SET_SIZE, and ALLOW_FLOATING_ROOT
   SHOULD be configurable. Defaults values SHOULD be applied so that
   configuration is not required. Defaults for the ETX metric SHOULD
   use the values shown in the previous section.
END

> > Can you also have a look at Section 7 of the OF0 draft. This gives
> > more substantive approach to describing manageability.
>=20
> How about changing:
>=20
>    The parameters MAX_LINK_METRIC, MAX_PATH_COST, MIN_PATH_COST,
>    PARENT_SWITCH_THRESHOLD, PARENT_SET_SIZE, and ALLOW_FLOATING_ROOT
>    should be configurable.
>=20
> to
>=20
>    Out of the box, the parameters MAX_LINK_METRIC, MAX_PATH_COST,
MIN_PATH_COST,
>    PARENT_SWITCH_THRESHOLD, PARENT_SET_SIZE, and ALLOW_FLOATING_ROOT
>    should be set to the default values. The default value MAY be =
different
from the ones
>    described in Section 5.1. These values may be further modified =
using
guidelines in Section 16
>    of [I-D.ietf-roll-rpl].

I think you have really only attempted to address my previous point =
here.
Wrt manageability I had hoped for more details. You might look at RFC =
5706 for
advice (and you could use RFC 6123 as an example).

I think this is only a "nice to have", and certainly you don't need to =
go down
the path of a 10 page section. What I really wanted to understand was =
that you
had considered the manageability of your work. If so, we can move on.

Cheers,
Adrian




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Subject: [Roll] Two questions about RPL: "RPL link" and "DAODealy"
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--------------060108080209000409040508
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Hello dear all,

When reading the RPL draft, I have two questions:

1. In section 8.2.2.2. DODAG Roots:

> In a deployment that uses non-RPL links to federate a number of LLN
>    roots, it is possible to run RPL over those non-RPL links and use one
>    router as a "backbone root". 

What does the "non-RPL link" mean here? And what's "RPL link"? According
to the context, it seems to be "low power and lossy link"? I don't  see
why the *link* should be related to RPL.

2. In section 9.6. Triggering DAO messages

>   In the case of triggered DAOs, selecting a proper DAODelay can
>    greatly reduce the number of DAOs transmitted.  The trigger flows
>    Down the DODAG; in the best case the DAOs flow Up the DODAG such that
>    leaves send DAOs first, with each node sending a DAO message only
>    once. 

I don't know how each node only needs to send a DAO once in non-storing
mode if the DAO doesn't accumulate the path information?

cheers

-- 
Jiazi YI

www.jiaziyi.com
Hipercom@LIX, Ecole Polytechnique
91128 Palaiseau Cedex France


--------------060108080209000409040508
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<html>
  <head>

    <meta http-equiv="content-type" content="text/html; charset=ISO-8859-1">
  </head>
  <body bgcolor="#FFFFFF" text="#000000">
    Hello dear all,<br>
    <br>
    When reading the RPL draft, I have two questions:<br>
    <br>
    1. In section 8.2.2.2. DODAG Roots:<br>
    <br>
    <blockquote type="cite">
      <meta charset="utf-8">
      <pre class="newpage" style="font-size: 1em; margin-top: 0px; margin-bottom: 0px; page-break-before: always; color: rgb(0, 0, 0); font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; ">In a deployment that uses non-RPL links to federate a number of LLN
   roots, it is possible to run RPL over those non-RPL links and use one
   router as a "backbone root". </pre>
    </blockquote>
    <br>
    What does the "non-RPL link" mean here? And what's "RPL link"?
    According to the context, it seems to be "low power and lossy link"?
    I don't&nbsp; see why the *link* should be related to RPL.<br>
    <br>
    2. In section 9.6. Triggering DAO messages<br>
    <br>
    <blockquote type="cite">
      <meta charset="utf-8">
      <pre class="newpage" style="font-size: 1em; margin-top: 0px; margin-bottom: 0px; page-break-before: always; color: rgb(0, 0, 0); font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; ">  In the case of triggered DAOs, selecting a proper DAODelay can
   greatly reduce the number of DAOs transmitted.  The trigger flows
   Down the DODAG; in the best case the DAOs flow Up the DODAG such that
   leaves send DAOs first, with each node sending a DAO message only
   once. </pre>
    </blockquote>
    <br>
    I don't know how each node only needs to send a DAO once in
    non-storing mode if the DAO doesn't accumulate the path information?<br>
    <br>
    cheers<br>
    <pre class="moz-signature" cols="72">-- 
Jiazi YI

<a class="moz-txt-link-abbreviated" href="http://www.jiaziyi.com">www.jiaziyi.com</a>
Hipercom@LIX, Ecole Polytechnique
91128 Palaiseau Cedex France</pre>
  </body>
</html>

--------------060108080209000409040508--

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From: Alexandru Petrescu <alexandru.petrescu@gmail.com>
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Subject: Re: [Roll] Two questions about RPL: "RPL link" and "DAODealy"
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Le 08/01/2012 18:42, Jiazi YI a écrit :
> Hello dear all,
>
> When reading the RPL draft, I have two questions:
>
> 1. In section 8.2.2.2. DODAG Roots:
>
>> In a deployment that uses non-RPL links to federate a number of
>> LLN roots, it is possible to run RPL over those non-RPL links and
>> use one router as a"backbone root".
>
> What does the "non-RPL link" mean here? And what's "RPL link"?
> According to the context, it seems to be "low power and lossy link"?
> I don't see why the *link* should be related to RPL.

I agree.  Maybe it better said "links on which RPL runs" or so.  "RPL
link" makes little sense, but for example "802.15.4 link" would make
more sense.

Alex


> 2. In section 9.6. Triggering DAO messages
>
>> In the case of triggered DAOs, selecting a proper DAODelay can
>> greatly reduce the number of DAOs transmitted.  The trigger flows
>> Down the DODAG; in the best case the DAOs flow Up the DODAG such
>> that leaves send DAOs first, with each node sending a DAO message
>> only once.
>
> I don't know how each node only needs to send a DAO once in
> non-storing mode if the DAO doesn't accumulate the path information?
>
> cheers
>
> -- Jiazi YI
>
> www.jiaziyi.com Hipercom@LIX, Ecole Polytechnique 91128 Palaiseau
> Cedex France
>
>
>
> _______________________________________________ Roll mailing list
> Roll@ietf.org https://www.ietf.org/mailman/listinfo/roll



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Thread-Topic: [Roll] Two questions about RPL: "RPL link" and "DAODealy"
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From: "Pascal Thubert (pthubert)" <pthubert@cisco.com>
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Subject: Re: [Roll] Two questions about RPL: "RPL link" and "DAODealy"
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Hello Jiazi,

=20

1)      I think this is a typo for non-LLN. This is the case where you
have a backbone such as Ethernet that federates multiple roots and the
backbone is not a LLN but still is used as the first hop of the RPL
network off the root... You'll note that in that case the whole network
is a single DAG.

You can alternatively make each root own its own DODAG in which case the
backbone is not RPL.=20

=20

Either way, you might want to run an additional routing protocol such as
OSPF over that backbone so that a packet from a node1 in subdag1
attached via  root1 to node2 in subdag2 attached via root2 will go
straight from root1 to root2 over the backbone. With RPL only, that
packet would go via a global root that is also on that backbone. This
illustrates the concept of boulevard that was discussed early in the RPL
process.

=20

2)      Yes, this is storing only, since for all I know it refers to the
aggregation that happens in storing mode, where a single DAO message can
accumulate multiple targets. In non-storing, the DAO is unicast to the
root directly so no such aggregation happens. In storing, the DODAG
refresh could be optimized down to 1 DAO per router if, recursively, the
children have a lesser delay between the trigger and the DAO emission
than their parents do. So that a node gets all the targets for all of
its subdag before it sends an accumulation of those plus its own
information to a selection of its own parents. We used to have a
mechanism in storing mode to recursively update the whole subdag as we
do in non-storing (indicating that with a flag) but we abandoned that so
the optimization discussed here now may only apply to a
DODAGVersionNumber increment. The suggestion has lost most of its value
as RPL evolved and we should probably remove it since it's only creating
confusion.

=20

Thanks for the review!

=20

Pascal

=20

From: roll-bounces@ietf.org [mailto:roll-bounces@ietf.org] On Behalf Of
Jiazi YI
Sent: dimanche 8 janvier 2012 18:42
To: roll WG
Subject: [Roll] Two questions about RPL: "RPL link" and "DAODealy"

=20

Hello dear all,

When reading the RPL draft, I have two questions:

1. In section 8.2.2.2. DODAG Roots:




In a deployment that uses non-RPL links to federate a number of LLN
   roots, it is possible to run RPL over those non-RPL links and use one
   router as a "backbone root".=20


What does the "non-RPL link" mean here? And what's "RPL link"? According
to the context, it seems to be "low power and lossy link"? I don't  see
why the *link* should be related to RPL.

2. In section 9.6. Triggering DAO messages




  In the case of triggered DAOs, selecting a proper DAODelay can
   greatly reduce the number of DAOs transmitted.  The trigger flows
   Down the DODAG; in the best case the DAOs flow Up the DODAG such that
   leaves send DAOs first, with each node sending a DAO message only
   once.=20


I don't know how each node only needs to send a DAO once in non-storing
mode if the DAO doesn't accumulate the path information?

cheers



--=20
Jiazi YI
=20
www.jiaziyi.com
Hipercom@LIX, Ecole Polytechnique
91128 Palaiseau Cedex France

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link=3Dblue vlink=3Dpurple><div class=3DWordSection1><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Hello Jiazi,<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoListParagraph =
style=3D'text-indent:-18.0pt;mso-list:l1 level1 lfo2'><![if =
!supportLists]><span lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><span style=3D'mso-list:Ignore'>1)<span style=3D'font:7.0pt "Times =
New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></span></span><![endif]><span lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>I think this is a typo for non-LLN. This is the case where you have a =
backbone such as Ethernet that federates multiple roots and the backbone =
is not a LLN but still is used as the first hop of the RPL network off =
the root&#8230; You&#8217;ll note that in that case the whole network is =
a single DAG.<o:p></o:p></span></p><p class=3DMsoListParagraph><span =
lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'> <o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'margin-left:36.0pt'><span lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>You can alternatively make each root own its own DODAG in which case =
the backbone is not RPL. <o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'margin-left:36.0pt'><span lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal =
style=3D'margin-left:36.0pt'><span lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Either way, you might want to run an additional routing protocol such =
as OSPF over that backbone so that a packet from a node1 in subdag1 =
attached via &nbsp;root1 to node2 in subdag2 attached via root2 will go =
straight from root1 to root2 over the backbone. With RPL only, that =
packet would go via a global root that is also on that backbone. This =
illustrates the concept of boulevard that was discussed early in the RPL =
process.<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoListParagraph =
style=3D'text-indent:-18.0pt;mso-list:l1 level1 lfo2'><![if =
!supportLists]><span lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><span style=3D'mso-list:Ignore'>2)<span style=3D'font:7.0pt "Times =
New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span></span></span><![endif]><span lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Yes, this is storing only, since for all I know it refers to the =
aggregation that happens in storing mode, where a single DAO message can =
accumulate multiple targets. In non-storing, the DAO is unicast to the =
root directly so no such aggregation happens. In storing, the DODAG =
refresh could be optimized down to 1 DAO per router if, recursively, the =
children have a lesser delay between the trigger and the DAO emission =
than their parents do. So that a node gets all the targets for all of =
its subdag before it sends an accumulation of those plus its own =
information to a selection of its own parents. We used to have a =
mechanism in storing mode to recursively update the whole subdag as we =
do in non-storing (indicating that with a flag) but we abandoned that so =
the optimization discussed here now may only apply to a =
DODAGVersionNumber increment. The suggestion has lost most of its value =
as RPL evolved and we should probably remove it since it&#8217;s only =
creating confusion.<o:p></o:p></span></p><p =
class=3DMsoListParagraph><span lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Thanks for the review!<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><div><p class=3DMsoNormal><span =
lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Pascal<o:p></o:p></span></p></div><p class=3DMsoNormal><span =
lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><div><div =
style=3D'border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm =
0cm 0cm'><p class=3DMsoNormal><b><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowt=
ext'>From:</span></b><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowt=
ext'> roll-bounces@ietf.org [mailto:roll-bounces@ietf.org] <b>On Behalf =
Of </b>Jiazi YI<br><b>Sent:</b> dimanche 8 janvier 2012 =
18:42<br><b>To:</b> roll WG<br><b>Subject:</b> [Roll] Two questions =
about RPL: &quot;RPL link&quot; and =
&quot;DAODealy&quot;<o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Hello dear =
all,<br><br>When reading the RPL draft, I have two questions:<br><br>1. =
In section 8.2.2.2. DODAG Roots:<br><br><br><o:p></o:p></p><pre =
style=3D'page-break-before:always;orphans: =
2;text-align:-webkit-auto;widows: 2;-webkit-text-size-adjust: =
auto;-webkit-text-stroke-width: 0px;word-spacing:0px'><span =
style=3D'font-size:12.0pt'>In a deployment that uses non-RPL links to =
federate a number of LLN<o:p></o:p></span></pre><pre =
style=3D'page-break-before:always'><span =
style=3D'font-size:12.0pt'>&nbsp;&nbsp; roots, it is possible to run RPL =
over those non-RPL links and use one<o:p></o:p></span></pre><pre =
style=3D'page-break-before:always'><span =
style=3D'font-size:12.0pt'>&nbsp;&nbsp; router as a &quot;backbone =
root&quot;. <o:p></o:p></span></pre><p class=3DMsoNormal><br>What does =
the &quot;non-RPL link&quot; mean here? And what's &quot;RPL link&quot;? =
According to the context, it seems to be &quot;low power and lossy =
link&quot;? I don't&nbsp; see why the *link* should be related to =
RPL.<br><br>2. In section 9.6. Triggering DAO =
messages<br><br><br><o:p></o:p></p><pre =
style=3D'page-break-before:always;orphans: =
2;text-align:-webkit-auto;widows: 2;-webkit-text-size-adjust: =
auto;-webkit-text-stroke-width: 0px;word-spacing:0px'><span =
style=3D'font-size:12.0pt'>&nbsp; In the case of triggered DAOs, =
selecting a proper DAODelay can<o:p></o:p></span></pre><pre =
style=3D'page-break-before:always'><span =
style=3D'font-size:12.0pt'>&nbsp;&nbsp; greatly reduce the number of =
DAOs transmitted.&nbsp; The trigger flows<o:p></o:p></span></pre><pre =
style=3D'page-break-before:always'><span =
style=3D'font-size:12.0pt'>&nbsp;&nbsp; Down the DODAG; in the best case =
the DAOs flow Up the DODAG such that<o:p></o:p></span></pre><pre =
style=3D'page-break-before:always'><span =
style=3D'font-size:12.0pt'>&nbsp;&nbsp; leaves send DAOs first, with =
each node sending a DAO message only<o:p></o:p></span></pre><pre =
style=3D'page-break-before:always'><span =
style=3D'font-size:12.0pt'>&nbsp;&nbsp; once. <o:p></o:p></span></pre><p =
class=3DMsoNormal><br>I don't know how each node only needs to send a =
DAO once in non-storing mode if the DAO doesn't accumulate the path =
information?<br><br>cheers<br><br><o:p></o:p></p><pre>-- =
<o:p></o:p></pre><pre>Jiazi =
YI<o:p></o:p></pre><pre><o:p>&nbsp;</o:p></pre><pre><a =
href=3D"http://www.jiaziyi.com">www.jiaziyi.com</a><o:p></o:p></pre><pre>=
Hipercom@LIX, Ecole Polytechnique<o:p></o:p></pre><pre>91128 Palaiseau =
Cedex France<o:p></o:p></pre></div></body></html>
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Date: Mon, 09 Jan 2012 21:32:18 +0100
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Subject: Re: [Roll] Two questions about RPL: "RPL link" and "DAODealy"
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Hello Pascal,

Thanks for you detailed answer.

1) It makes much more sense when "non-LLN" is used.

2) There is no problem if it's for storing only. However, in the current
draft, it's a little confusing. Hopefully it can be clarified.

regards

On 1/9/12 6:03 PM, Pascal Thubert (pthubert) wrote:
>
> Hello Jiazi,
>
>  
>
> 1)      I think this is a typo for non-LLN. This is the case where you
> have a backbone such as Ethernet that federates multiple roots and the
> backbone is not a LLN but still is used as the first hop of the RPL
> network off the root... You'll note that in that case the whole
> network is a single DAG.
>
> You can alternatively make each root own its own DODAG in which case
> the backbone is not RPL.
>
>  
>
> Either way, you might want to run an additional routing protocol such
> as OSPF over that backbone so that a packet from a node1 in subdag1
> attached via  root1 to node2 in subdag2 attached via root2 will go
> straight from root1 to root2 over the backbone. With RPL only, that
> packet would go via a global root that is also on that backbone. This
> illustrates the concept of boulevard that was discussed early in the
> RPL process.
>
>  
>
> 2)      Yes, this is storing only, since for all I know it refers to
> the aggregation that happens in storing mode, where a single DAO
> message can accumulate multiple targets. In non-storing, the DAO is
> unicast to the root directly so no such aggregation happens. In
> storing, the DODAG refresh could be optimized down to 1 DAO per router
> if, recursively, the children have a lesser delay between the trigger
> and the DAO emission than their parents do. So that a node gets all
> the targets for all of its subdag before it sends an accumulation of
> those plus its own information to a selection of its own parents. We
> used to have a mechanism in storing mode to recursively update the
> whole subdag as we do in non-storing (indicating that with a flag) but
> we abandoned that so the optimization discussed here now may only
> apply to a DODAGVersionNumber increment. The suggestion has lost most
> of its value as RPL evolved and we should probably remove it since
> it's only creating confusion.
>
>  
>
> Thanks for the review!
>
>  
>
> Pascal
>
>  
>
> *From:*roll-bounces@ietf.org [mailto:roll-bounces@ietf.org] *On Behalf
> Of *Jiazi YI
> *Sent:* dimanche 8 janvier 2012 18:42
> *To:* roll WG
> *Subject:* [Roll] Two questions about RPL: "RPL link" and "DAODealy"
>
>  
>
> Hello dear all,
>
> When reading the RPL draft, I have two questions:
>
> 1. In section 8.2.2.2. DODAG Roots:
>
>
> In a deployment that uses non-RPL links to federate a number of LLN
>    roots, it is possible to run RPL over those non-RPL links and use one
>    router as a "backbone root". 
>
>
> What does the "non-RPL link" mean here? And what's "RPL link"?
> According to the context, it seems to be "low power and lossy link"? I
> don't  see why the *link* should be related to RPL.
>
> 2. In section 9.6. Triggering DAO messages
>
>
>   In the case of triggered DAOs, selecting a proper DAODelay can
>    greatly reduce the number of DAOs transmitted.  The trigger flows
>    Down the DODAG; in the best case the DAOs flow Up the DODAG such that
>    leaves send DAOs first, with each node sending a DAO message only
>    once. 
>
>
> I don't know how each node only needs to send a DAO once in
> non-storing mode if the DAO doesn't accumulate the path information?
>
> cheers
>
> -- 
> Jiazi YI
>  
> www.jiaziyi.com <http://www.jiaziyi.com>
> Hipercom@LIX, Ecole Polytechnique
> 91128 Palaiseau Cedex France

-- 
Jiazi YI

www.jiaziyi.com
Hipercom@LIX, Ecole Polytechnique
91128 Palaiseau Cedex France


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    Hello Pascal,<br>
    <br>
    Thanks for you detailed answer.<br>
    <br>
    1) It makes much more sense when "non-LLN" is used.<br>
    <br>
    2) There is no problem if it's for storing only. However, in the
    current draft, it's a little confusing. Hopefully it can be
    clarified. <br>
    <br>
    regards<br>
    <br>
    On 1/9/12 6:03 PM, Pascal Thubert (pthubert) wrote:
    <blockquote
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      <div class="WordSection1">
        <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">Hello
            Jiazi,<o:p></o:p></span></p>
        <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span></p>
        <p class="MsoListParagraph"
          style="text-indent:-18.0pt;mso-list:l1 level1 lfo2"><!--[if !supportLists]--><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"
            lang="EN-US"><span style="mso-list:Ignore">1)<span
                style="font:7.0pt &quot;Times New Roman&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><!--[endif]--><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"
            lang="EN-US">I think this is a typo for non-LLN. This is the
            case where you have a backbone such as Ethernet that
            federates multiple roots and the backbone is not a LLN but
            still is used as the first hop of the RPL network off the
            root&#8230; You&#8217;ll note that in that case the whole network is a
            single DAG.<o:p></o:p></span></p>
        <p class="MsoListParagraph"><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"
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style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"
            lang="EN-US">You can alternatively make each root own its
            own DODAG in which case the backbone is not RPL. <o:p></o:p></span></p>
        <p class="MsoNormal" style="margin-left:36.0pt"><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"
            lang="EN-US"><o:p>&nbsp;</o:p></span></p>
        <p class="MsoNormal" style="margin-left:36.0pt"><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"
            lang="EN-US">Either way, you might want to run an additional
            routing protocol such as OSPF over that backbone so that a
            packet from a node1 in subdag1 attached via &nbsp;root1 to node2
            in subdag2 attached via root2 will go straight from root1 to
            root2 over the backbone. With RPL only, that packet would go
            via a global root that is also on that backbone. This
            illustrates the concept of boulevard that was discussed
            early in the RPL process.<o:p></o:p></span></p>
        <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"
            lang="EN-US"><o:p>&nbsp;</o:p></span></p>
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          style="text-indent:-18.0pt;mso-list:l1 level1 lfo2"><!--[if !supportLists]--><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"
            lang="EN-US"><span style="mso-list:Ignore">2)<span
                style="font:7.0pt &quot;Times New Roman&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span><!--[endif]--><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"
            lang="EN-US">Yes, this is storing only, since for all I know
            it refers to the aggregation that happens in storing mode,
            where a single DAO message can accumulate multiple targets.
            In non-storing, the DAO is unicast to the root directly so
            no such aggregation happens. In storing, the DODAG refresh
            could be optimized down to 1 DAO per router if, recursively,
            the children have a lesser delay between the trigger and the
            DAO emission than their parents do. So that a node gets all
            the targets for all of its subdag before it sends an
            accumulation of those plus its own information to a
            selection of its own parents. We used to have a mechanism in
            storing mode to recursively update the whole subdag as we do
            in non-storing (indicating that with a flag) but we
            abandoned that so the optimization discussed here now may
            only apply to a DODAGVersionNumber increment. The suggestion
            has lost most of its value as RPL evolved and we should
            probably remove it since it&#8217;s only creating confusion.<o:p></o:p></span></p>
        <p class="MsoListParagraph"><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"
            lang="EN-US"><o:p>&nbsp;</o:p></span></p>
        <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"
            lang="EN-US">Thanks for the review!<o:p></o:p></span></p>
        <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"
            lang="EN-US"><o:p>&nbsp;</o:p></span></p>
        <div>
          <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"
              lang="EN-US">Pascal<o:p></o:p></span></p>
        </div>
        <p class="MsoNormal"><span
style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"
            lang="EN-US"><o:p>&nbsp;</o:p></span></p>
        <div>
          <div style="border:none;border-top:solid #B5C4DF
            1.0pt;padding:3.0pt 0cm 0cm 0cm">
            <p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;;color:windowtext"
                  lang="EN-US">From:</span></b><span
style="font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;;color:windowtext"
                lang="EN-US"> <a class="moz-txt-link-abbreviated" href="mailto:roll-bounces@ietf.org">roll-bounces@ietf.org</a>
                [<a class="moz-txt-link-freetext" href="mailto:roll-bounces@ietf.org">mailto:roll-bounces@ietf.org</a>] <b>On Behalf Of </b>Jiazi
                YI<br>
                <b>Sent:</b> dimanche 8 janvier 2012 18:42<br>
                <b>To:</b> roll WG<br>
                <b>Subject:</b> [Roll] Two questions about RPL: "RPL
                link" and "DAODealy"<o:p></o:p></span></p>
          </div>
        </div>
        <p class="MsoNormal"><o:p>&nbsp;</o:p></p>
        <p class="MsoNormal">Hello dear all,<br>
          <br>
          When reading the RPL draft, I have two questions:<br>
          <br>
          1. In section 8.2.2.2. DODAG Roots:<br>
          <br>
          <br>
          <o:p></o:p></p>
        <pre style="page-break-before:always;orphans: 2;text-align:-webkit-auto;widows: 2;-webkit-text-size-adjust: auto;-webkit-text-stroke-width: 0px;word-spacing:0px"><span style="font-size:12.0pt">In a deployment that uses non-RPL links to federate a number of LLN<o:p></o:p></span></pre>
        <pre style="page-break-before:always"><span style="font-size:12.0pt">&nbsp;&nbsp; roots, it is possible to run RPL over those non-RPL links and use one<o:p></o:p></span></pre>
        <pre style="page-break-before:always"><span style="font-size:12.0pt">&nbsp;&nbsp; router as a "backbone root". <o:p></o:p></span></pre>
        <p class="MsoNormal"><br>
          What does the "non-RPL link" mean here? And what's "RPL link"?
          According to the context, it seems to be "low power and lossy
          link"? I don't&nbsp; see why the *link* should be related to RPL.<br>
          <br>
          2. In section 9.6. Triggering DAO messages<br>
          <br>
          <br>
          <o:p></o:p></p>
        <pre style="page-break-before:always;orphans: 2;text-align:-webkit-auto;widows: 2;-webkit-text-size-adjust: auto;-webkit-text-stroke-width: 0px;word-spacing:0px"><span style="font-size:12.0pt">&nbsp; In the case of triggered DAOs, selecting a proper DAODelay can<o:p></o:p></span></pre>
        <pre style="page-break-before:always"><span style="font-size:12.0pt">&nbsp;&nbsp; greatly reduce the number of DAOs transmitted.&nbsp; The trigger flows<o:p></o:p></span></pre>
        <pre style="page-break-before:always"><span style="font-size:12.0pt">&nbsp;&nbsp; Down the DODAG; in the best case the DAOs flow Up the DODAG such that<o:p></o:p></span></pre>
        <pre style="page-break-before:always"><span style="font-size:12.0pt">&nbsp;&nbsp; leaves send DAOs first, with each node sending a DAO message only<o:p></o:p></span></pre>
        <pre style="page-break-before:always"><span style="font-size:12.0pt">&nbsp;&nbsp; once. <o:p></o:p></span></pre>
        <p class="MsoNormal"><br>
          I don't know how each node only needs to send a DAO once in
          non-storing mode if the DAO doesn't accumulate the path
          information?<br>
          <br>
          cheers<br>
          <br>
          <o:p></o:p></p>
        <pre>-- <o:p></o:p></pre>
        <pre>Jiazi YI<o:p></o:p></pre>
        <pre><o:p>&nbsp;</o:p></pre>
        <pre><a moz-do-not-send="true" href="http://www.jiaziyi.com">www.jiaziyi.com</a><o:p></o:p></pre>
        <pre>Hipercom@LIX, Ecole Polytechnique<o:p></o:p></pre>
        <pre>91128 Palaiseau Cedex France<o:p></o:p></pre>
      </div>
    </blockquote>
    <br>
    <pre class="moz-signature" cols="72">-- 
Jiazi YI

<a class="moz-txt-link-abbreviated" href="http://www.jiaziyi.com">www.jiaziyi.com</a>
Hipercom@LIX, Ecole Polytechnique
91128 Palaiseau Cedex France</pre>
  </body>
</html>

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[We apologize if you receive multiple copies of this CFP.]

----------------------------------------------------------------------

IEEE NAS 2012=20
Dates: June 28-30
Xiamen, Fujian, China

CALL FOR PAPERS

********************************************************************
The 7th IEEE International Conference on Networking, Architecture, and =
Storage (NAS 2012)
http://www.nas-conference.org/
*********************************************************************

OVERVIEW
--------------------------------------------------------------
The 7th IEEE International Conference on Networking, Architecture, and =
Storage (NAS 2012) will be held from June 28 =E2=88=92 30, 2012 at =
Xiamen, Fujian, China. It will serve as an international forum to bring =
together researchers and practitioners from academia and industry to =
discuss cutting-edge research on networking, high-performance computer =
architecture, and parallel and distributed data storage technologies. =
NAS 2012 will expose participants to the most recent developments in the =
interdisciplinary areas.

NAS has been successfully held in Dalian in 2011(NAS'11), Macau in =
2010(NAS'10), Zhang Jia Jie in 2009 (NAS'09), Chongqing in 2008 =
(NAS'08), Guilin in 2007 (NAS'07), and Shenyang in 2006 (NAS'06).


IMPORTANT DATES
--------------------------------------------------------------
Submission Deadline: February 24th, 2012
Notification of acceptance: April 15th, 2012
Camera-ready Paper: May 5th, 2012
Conference: June 28-30, 2012


TOPICS
--------------------------------------------------------------
The topics of interest include, but are not limited to:
* Network security and privacy
* Virtual and overlay networks
* Network applications and services
* Ad hoc and sensor networks
* Networks and protocols
* Network architectures
* Processor architectures
* Cache and memory systems
* Parallel and multi-core systems
* Impact of (emerging) technologies on architectures
* Network information theory & network coding
* Power and energy efficient architectures and techniques
* Storage management
* Storage performance and scalability
* File systems, object-based storage, and block storage
* Energy-aware storage
* Architecture and applications of solid state disks
* Performance evaluation
* Network Storage
* Innovative HW/SW tradeoffs

We are pleased to invite you to submit papers to NAS 2012. All=20
submissions will be peer reviewed by our scientific committee and
the accepted papers will be included in Ei. Also we would like to
announce that a number of experts and leading researchers in the
field of Networking, Architecture, and Storage will be delivering=20
keynote lectures.


CONFERENCE ORGANIZORS
--------------------------------------------------------------
Steering Committee
--------------------------------
Xubin He, Virginia Commonwealth University, USA
Hong Jiang, University of Nebraska - Lincoln, USA
Changsheng Xie, Huazhong University of Science and Technology, China
Qing Yang, University of Rhode Island, USA
Andr=C3=A9 Brinkmann, Johannes Gutenberg-Universit=C3=A4t Mainz, Germany

Honorable General Chairs
--------------------------------
Ying Zhang, Xiamen University, China

General Co-Chairs
--------------------------------
Zhiyong Xu, Suffolk University, USA
Lin Wang, Xiamen University, China

Program Co-Chairs
--------------------------------
Carlos Maltzahn, University of California Santa Cruz, USA
Xiao Qin, Auburn University, USA

Vice Program Chairs [Networking]
--------------------------------
Lisong Xu, University of Nebraska-Lincoln, USA
Murat Yuksel, University of Nevada, Reno, USA

Vice Program Chairs [Architecture]
--------------------------------
Guangyu Sun, Peking University, China
Yiran Chen, University of Pittsburgh

Vice Program Chairs [Storage]
--------------------------------
Jun Wang, University of Central Florida, USA
John Bent, EMC, USA

Publicity Co-Chairs
--------------------------------
Lei Tian, University of Nebraska-Lincoln, USA
Hanzi Wang, Xiamen University, China

Local Arrangement Co-Chairs
--------------------------------
Cuihua Li, Xiamen University, China
Da Lu, Xiamen University, China

Publication Co-Chairs
--------------------------------
Jizhong Han, Chinese Academy of Sciences, China

Registration and Finance Co-Chairs
--------------------------------
Yunqi Lei, Xiamen University, China
Suzhen Wu, Xiamen University, China


For more information regarding NAS 2012, please refer to the link below:

http://www.nas-conference.org/NAS-2012/index.html


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=3D
(Please accept our apologies if you receive multiple copies of this CFP.)
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=3D

Call for Papers
The Ninth International Conference of Networked Sensing Systems (INSS 2012)

Antwerp, Belgium, June 11-14, 2012
Submission Deadline: December 24, 2011
http://www.inss-conf.org/2012

Scope and Theme:
---------------
During the past years, the International Conference on Networked Sensing Sy=
stems (INSS) has established itself as a scientific event where academic an=
d industrial experts from the areas of next generation sensor systems, sens=
or network applications, and measurement and control engineering come toget=
her. The INSS provides a forum to hear about the latest developments in the=
se areas, to exchange ideas, and to start up collaborations within these fi=
elds and between industry and academia.

INSS 2012 is the ninth annual conference in the series, and features a high=
ly selective technical program. We invite outstanding research papers from =
the field of sensor technology, wireless networking, or applications of net=
worked sensor systems. The conference especially encourages submissions tha=
t investigate research issues shared between all the three areas.

INSS 2012 invites the submission of regular, short, and industry papers. Al=
l submissions will be peer-reviewed and evaluated on the basis of originali=
ty, significance of contribution, technical correctness, and presentation. =
Papers submitted must not be under simultaneous review for any other confer=
ence, journal, workshop, or other publication. All accepted papers will be =
published at IEEE Xplore digital library. Authors are required to attend th=
e conference to present their work.

Regular/Short Paper Track
-------------------------
Regular papers must be 4-8 pages long (two-column format) and include an ab=
stract of 100-150 words. Short papers must be 2-4 pages long (two-column fo=
rmat) and include an abstract of 100-150 words. All papers should be format=
ted according to the IEEE transactions format. Short papers are suitable fo=
r interactive discussions. Presentation time of accepted regular and short =
papers is decided on acceptance notification. Topics of regular/short paper=
 track include but are not limited to:
o Theoretical Study on Networked Sensing Systems
o Applications of Networked Sensing Systems
o Prototypes, Field Studies & Test beds for Networked Sensing Systems
o Safety and Security of Networked Sensing Systems
o Data Management for Networked Sensing Systems
o Middleware for Networked Sensing Systems
o Self-Organizing Networked Sensing Systems and Autonomic/Bio-Inspired Syst=
ems
o Intelligent Sensing Systems
o Sensor Phenomena and Modeling
o Sensors and Sensing Systems
o Sensors and Actuators for Smart Meter and Smart Grid Applications
o Human Behavior Sensing and Ambient Support
o Human Health Monitoring and Biomedical Measurement
o Measurement and Control Issues in Networked Sensing Systems
o Networked Sensing Systems involving Haptic Interactions
o Materials, Design, Fabrication, and Packaging of Sensors

Industry Paper Track
--------------------
INSS also offers an industry track. In this track, new and interesting deve=
lopments in networks for industrial applications can be recognized, whether=
 in the area of sensor systems, wireless networks, industrial network appli=
cations, networks for safety related systems and applications, different se=
curity aspects in networks fault tolerant and redundant networks and many o=
thers. This session focuses on innovative, new and interesting network appl=
ications and research results for industries or developments which will be =
important in the near future. The industry track intends to provide discuss=
ion for practitioners, developers, and researchers in order to examine prac=
tical issues.?Industry papers are suitable for industry researchers to pres=
ent not only technical, but also practical issues surrounding production, d=
eployment, and commercialisation of networked sensing technology. Industry =
papers must be 2-4 pages long (two-column format) and include an abstract o=
f 100-150 words. Papers should be formatted according to the IEEE transacti=
ons format. The submitted industry papers will be reviewed by industry trac=
k TPC members and accepted papers will be presented in the main conference'=
s industry track session. The industry track aims at providing a forum amon=
g practitioners, developers, and researchers to discuss practical issues in=
cluding but not limited to:
o Designing networked sensing systems for commercial applications
o Service models and architectures for successful deployments
o Production engineering for networked sensing systems
o Deployment and evaluation of networked sensing systems in practical appli=
cations

Paper submission
----------------
Submissions should be in PDF format and will be handled through EDAS.
http://edas.info/N11501

Important Dates (both regular/short and industry tracks)
--------------------------------------------------------
Paper Submissions Due: December 24th, 2011
Notification of Acceptance: March 15th, 2012
Camera-Ready Papers: April 15th, 2012
Conference Dates: June 11 - 14, 2012

Committees
----------

Honorary Chair:
Danny Goderis, Bell Labs, Alcatel-Lucent, Belgium

General Chairs:
Fahim Kawsar, Bell Labs, Alcatel-Lucent, Belgium
Tian He, University of Minnesota, USA

Program Chair:
Hiroyuki Shinoda, University of Tokyo, Japan

Program Vice Chairs:
Hedda Schmidtke, TecO and Karlsruhe Institute of Technology, Germany
Niwat Thepvilojanapong, Mie University, Japan
Simon Egerton, Monash University, Malaysia and Australia

Industrial Track Chairs:
Xueli An, Bell Labs, Alcatel-Lucent, Belgium
Bing Zhang, NICT, Japan

Workshop Chairs:
Fabio Pianese, Bell Labs, Alcatel-Lucent, Belgium
Takuro Yonezawa, Keio University, Japan

Poster Chairs:
Andreas Bulling, University of Cambridge / Lancaster University, UK
Jean-Baptiste Labrune, Bell Labs, Alcatel-Lucent, France

Demonstration Chairs:
Mathieu Boussard, Bell Labs, Alcatel-Lucent, France
Till Riedel, TecO and Karlsruhe Institute of Technology, Germany

IEEE Liaison Chair:
Kohei Ohnishi, Keio University, Japan

Web Chair:
Henning Schild, Bell Labs, Alcatel-Lucent, Belgium

Publicity Chair:
Alireza Sahami, University of Stuttgart, Germany

Student Volunteer Chair:
Jo Vermeulen, Hasselt University, Belgium

Publication Chair:
Hiroki Ishizuka, University of Tokyo, Japan

Local Arrangement:
Brigitte Van Dam, Alcatel-Lucent, Belgium
Rita Daelemans, Alcatel-Lucent, Belgium

Technical Program Committee:
Tarek Abdelzaher, University of Illinois, Urbana Champaign
Michael Beigl, KIT
Christian Decker, TecO, University of Karlsruhe
Simon Egerton, Monash University
David Evans, University of Cambridge
Yu Gu, Singapore University of Technology and Design
Satoshi Honda, Keio University
Hideto Iwaoka, Kanazawa Institute of Technology
Yoshihiro Kawahara, The University of Tokyo
Hideyuki Kawashima, University of Tsukuba
Fahim Kawsar, Bell Labs
Daeyoung Kim, Korea Advanced Institute of Science and Technology
Narito Kurata, Kajima
Satoshi Kurihara, Osaka University
Marc Langheinrich, University of Lugano (USI)
Hyunyoung Lee, Texas A&M University
Pedro Marron, University of Duisburg-Essen and Fraunhofer FKIE
Masateru Minami, Shibaura Institute of Technology
Jin Nakazawa, Keio University
Hiroshi Noguchi, The University of Tokyo
Marcelo Pias, Cambridge University
Till Riedel, TecO, Karlsruhe Institute of Technology
Hedda Schmidtke, KIT TecO
Hiroyuki Shinoda, University of Tokyo
Niwat Thepvilojanapong, Mie University
Yoshito Tobe, Tokyo Denki University
Kristof Van Laerhoven, TU Darmstadt
Matthias Woehrle, Delft University of Technology
Gang Zhou, College of William and Mary

--_000_CB0E82B824807alirezasahamivisunistuttgartde_
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<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dus-ascii"=
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<div>
<div>
<div>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
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=3D=3D=3D</div>
<div>(Please accept our apologies if you receive multiple copies of this CF=
P.)</div>
<div>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
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=3D=3D=3D</div>
</div>
<div><br>
</div>
<div>Call for Papers</div>
<div>The Ninth International Conference of Networked Sensing Systems (INSS =
2012)</div>
<div><br>
</div>
<div>Antwerp, Belgium, June 11-14, 2012</div>
<div>Submission Deadline: December 24, 2011</div>
<div>http://www.inss-conf.org/2012</div>
<div><br>
</div>
<div>Scope and Theme:</div>
<div>---------------</div>
<div>During the past years, the International Conference on Networked Sensi=
ng Systems (INSS) has established itself as a scientific event where academ=
ic and industrial experts from the areas of next generation sensor systems,=
 sensor network applications, and
 measurement and control engineering come together. The INSS provides a for=
um to hear about the latest developments in these areas, to exchange ideas,=
 and to start up collaborations within these fields and between industry an=
d academia.</div>
<div><br>
</div>
<div>INSS 2012 is the ninth annual conference in the series, and features a=
 highly selective technical program. We invite outstanding research papers =
from the field of sensor technology, wireless networking, or applications o=
f networked sensor systems. The
 conference especially encourages submissions that investigate research iss=
ues shared between all the three areas.</div>
<div><br>
</div>
<div>INSS 2012 invites the submission of regular, short, and industry paper=
s. All submissions will be peer-reviewed and evaluated on the basis of orig=
inality, significance of contribution, technical correctness, and presentat=
ion. Papers submitted must not be
 under simultaneous review for any other conference, journal, workshop, or =
other publication. All accepted papers will be published at IEEE Xplore dig=
ital library. Authors are required to attend the conference to present thei=
r work.</div>
<div><br>
</div>
<div>Regular/Short Paper Track</div>
<div>-------------------------</div>
<div>Regular papers must be 4-8 pages long (two-column format) and include =
an abstract of 100-150 words. Short papers must be 2-4 pages long (two-colu=
mn format) and include an abstract of 100-150 words. All papers should be f=
ormatted according to the IEEE transactions
 format. Short papers are suitable for interactive discussions. Presentatio=
n time of accepted regular and short papers is decided on acceptance notifi=
cation. Topics of regular/short paper track include but are not limited to:=
</div>
<div>o<span class=3D"Apple-tab-span" style=3D"white-space:pre"> </span>Theo=
retical Study on Networked Sensing Systems</div>
<div>o<span class=3D"Apple-tab-span" style=3D"white-space:pre"> </span>Appl=
ications of Networked Sensing Systems</div>
<div>o<span class=3D"Apple-tab-span" style=3D"white-space:pre"> </span>Prot=
otypes, Field Studies &amp; Test beds for Networked Sensing Systems</div>
<div>o<span class=3D"Apple-tab-span" style=3D"white-space:pre"> </span>Safe=
ty and Security of Networked Sensing Systems</div>
<div>o<span class=3D"Apple-tab-span" style=3D"white-space:pre"> </span>Data=
 Management for Networked Sensing Systems</div>
<div>o<span class=3D"Apple-tab-span" style=3D"white-space:pre"> </span>Midd=
leware for Networked Sensing Systems&nbsp;</div>
<div>o<span class=3D"Apple-tab-span" style=3D"white-space:pre"> </span>Self=
-Organizing Networked Sensing Systems and Autonomic/Bio-Inspired Systems</d=
iv>
<div>o<span class=3D"Apple-tab-span" style=3D"white-space:pre"> </span>Inte=
lligent Sensing Systems</div>
<div>o<span class=3D"Apple-tab-span" style=3D"white-space:pre"> </span>Sens=
or Phenomena and Modeling</div>
<div>o<span class=3D"Apple-tab-span" style=3D"white-space:pre"> </span>Sens=
ors and Sensing Systems</div>
<div>o<span class=3D"Apple-tab-span" style=3D"white-space:pre"> </span>Sens=
ors and Actuators for Smart Meter and Smart Grid Applications&nbsp;</div>
<div>o<span class=3D"Apple-tab-span" style=3D"white-space:pre"> </span>Huma=
n Behavior Sensing and Ambient Support</div>
<div>o<span class=3D"Apple-tab-span" style=3D"white-space:pre"> </span>Huma=
n Health Monitoring and Biomedical Measurement</div>
<div>o<span class=3D"Apple-tab-span" style=3D"white-space:pre"> </span>Meas=
urement and Control Issues in Networked Sensing Systems</div>
<div>o<span class=3D"Apple-tab-span" style=3D"white-space:pre"> </span>Netw=
orked Sensing Systems involving Haptic Interactions</div>
<div>o<span class=3D"Apple-tab-span" style=3D"white-space:pre"> </span>Mate=
rials, Design, Fabrication, and Packaging of Sensors</div>
<div><br>
</div>
<div>Industry Paper Track</div>
<div>--------------------</div>
<div>INSS also offers an industry track. In this track, new and interesting=
 developments in networks for industrial applications can be recognized, wh=
ether in the area of sensor systems, wireless networks, industrial network =
applications, networks for safety
 related systems and applications, different security aspects in networks f=
ault tolerant and redundant networks and many others. This session focuses =
on innovative, new and interesting network applications and research result=
s for industries or developments
 which will be important in the near future. The industry track intends to =
provide discussion for practitioners, developers, and researchers in order =
to examine practical issues.?Industry papers are suitable for industry rese=
archers to present not only technical,
 but also practical issues surrounding production, deployment, and commerci=
alisation of networked sensing technology. Industry papers must be 2-4 page=
s long (two-column format) and include an abstract of 100-150 words. Papers=
 should be formatted according to
 the IEEE transactions format. The submitted industry papers will be review=
ed by industry track TPC members and accepted papers will be presented in t=
he main conference's industry track session. The industry track aims at pro=
viding a forum among practitioners,
 developers, and researchers to discuss practical issues including but not =
limited to:</div>
<div>o<span class=3D"Apple-tab-span" style=3D"white-space:pre"> </span>Desi=
gning networked sensing systems for commercial applications</div>
<div>o<span class=3D"Apple-tab-span" style=3D"white-space:pre"> </span>Serv=
ice models and architectures for successful deployments</div>
<div>o<span class=3D"Apple-tab-span" style=3D"white-space:pre"> </span>Prod=
uction engineering for networked sensing systems</div>
<div>o<span class=3D"Apple-tab-span" style=3D"white-space:pre"> </span>Depl=
oyment and evaluation of networked sensing systems in practical application=
s</div>
<div><br>
</div>
<div>Paper submission</div>
<div>----------------</div>
<div>Submissions should be in PDF format and will be handled through EDAS.&=
nbsp;</div>
<div>http://edas.info/N11501</div>
<div><br>
</div>
<div>Important Dates (both regular/short and industry tracks)&nbsp;</div>
<div>--------------------------------------------------------</div>
<div>Paper Submissions Due: December 24th, 2011&nbsp;</div>
<div>Notification of Acceptance: March 15th, 2012</div>
<div>Camera-Ready Papers: April 15th, 2012</div>
<div>Conference Dates: June 11 - 14, 2012</div>
<div><br>
</div>
<div>Committees</div>
<div>----------</div>
<div><br>
</div>
<div>Honorary Chair:</div>
<div>Danny Goderis, Bell Labs, Alcatel-Lucent, Belgium</div>
<div><br>
</div>
<div>General Chairs:</div>
<div>Fahim Kawsar, Bell Labs, Alcatel-Lucent, Belgium</div>
<div>Tian He, University of Minnesota, USA</div>
<div><br>
</div>
<div>Program Chair:</div>
<div>Hiroyuki Shinoda, University of Tokyo, Japan</div>
<div><br>
</div>
<div>Program Vice Chairs:</div>
<div>Hedda Schmidtke, TecO and Karlsruhe Institute of Technology, Germany</=
div>
<div>Niwat Thepvilojanapong, Mie University, Japan</div>
<div>Simon Egerton, Monash University, Malaysia and Australia</div>
<div><br>
</div>
<div>Industrial Track Chairs:</div>
<div>Xueli An, Bell Labs, Alcatel-Lucent, Belgium</div>
<div>Bing Zhang, NICT, Japan</div>
<div><br>
</div>
<div>Workshop Chairs:</div>
<div>Fabio Pianese, Bell Labs, Alcatel-Lucent, Belgium</div>
<div>Takuro Yonezawa, Keio University, Japan</div>
<div><br>
</div>
<div>Poster Chairs:</div>
<div>Andreas Bulling, University of Cambridge / Lancaster University, UK</d=
iv>
<div>Jean-Baptiste Labrune, Bell Labs, Alcatel-Lucent, France</div>
<div><br>
</div>
<div>Demonstration Chairs:</div>
<div>Mathieu Boussard, Bell Labs, Alcatel-Lucent, France</div>
<div>Till Riedel, TecO and Karlsruhe Institute of Technology, Germany</div>
<div><br>
</div>
<div>IEEE Liaison Chair:</div>
<div>Kohei Ohnishi, Keio University, Japan</div>
<div><br>
</div>
<div>Web Chair:</div>
<div>Henning Schild, Bell Labs, Alcatel-Lucent, Belgium</div>
<div><br>
</div>
<div>Publicity Chair:</div>
<div>Alireza Sahami, University of Stuttgart, Germany</div>
<div><br>
</div>
<div>Student Volunteer Chair:</div>
<div>Jo Vermeulen, Hasselt University, Belgium</div>
<div><br>
</div>
<div>Publication Chair:</div>
<div>Hiroki Ishizuka, University of Tokyo, Japan</div>
<div><br>
</div>
<div>Local Arrangement:</div>
<div>Brigitte Van Dam, Alcatel-Lucent, Belgium</div>
<div>Rita Daelemans, Alcatel-Lucent, Belgium</div>
<div><br>
</div>
<div>Technical Program Committee:</div>
<div>Tarek Abdelzaher, University of Illinois, Urbana Champaign</div>
<div>Michael Beigl, KIT</div>
<div>Christian Decker, TecO, University of Karlsruhe</div>
<div>Simon Egerton, Monash University</div>
<div>David Evans, University of Cambridge</div>
<div>Yu Gu, Singapore University of Technology and Design</div>
<div>Satoshi Honda, Keio University</div>
<div>Hideto Iwaoka, Kanazawa Institute of Technology</div>
<div>Yoshihiro Kawahara, The University of Tokyo</div>
<div>Hideyuki Kawashima, University of Tsukuba</div>
<div>Fahim Kawsar, Bell Labs</div>
<div>Daeyoung Kim, Korea Advanced Institute of Science and Technology</div>
<div>Narito Kurata, Kajima</div>
<div>Satoshi Kurihara, Osaka University</div>
<div>Marc Langheinrich, University of Lugano (USI)</div>
<div>Hyunyoung Lee, Texas A&amp;M University</div>
<div>Pedro Marron, University of Duisburg-Essen and Fraunhofer FKIE</div>
<div>Masateru Minami, Shibaura Institute of Technology</div>
<div>Jin Nakazawa, Keio University</div>
<div>Hiroshi Noguchi, The University of Tokyo</div>
<div>Marcelo Pias, Cambridge University</div>
<div>Till Riedel, TecO, Karlsruhe Institute of Technology</div>
<div>Hedda Schmidtke, KIT TecO</div>
<div>Hiroyuki Shinoda, University of Tokyo</div>
<div>Niwat Thepvilojanapong, Mie University</div>
<div>Yoshito Tobe, Tokyo Denki University</div>
<div>Kristof Van Laerhoven, TU Darmstadt</div>
<div>Matthias Woehrle, Delft University of Technology</div>
<div>Gang Zhou, College of William and Mary</div>
</div>
</body>
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--_000_CB0E82B824807alirezasahamivisunistuttgartde_--

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Apologies for cross posting

Call for Papers
The Ninth International Conference of Networked Sensing Systems (INSS 2012)

Antwerp, Belgium, June 11-14, 2012
Extended Submission Deadline: January 16, 2012
http://www.inss-conf.org/2012

Scope and Theme:
---------------
During the past years, the International Conference on Networked Sensing Sy=
stems (INSS) has established itself as a scientific event where academic an=
d industrial experts from the areas of next generation sensor systems, sens=
or network applications, and measurement and control engineering come toget=
her. The INSS provides a forum to hear about the latest developments in the=
se areas, to exchange ideas, and to start up collaborations within these fi=
elds and between industry and academia.

INSS 2012 is the ninth annual conference in the series, and features a high=
ly selective technical program. We invite outstanding research papers from =
the field of sensor technology, wireless networking, or applications of net=
worked sensor systems. The conference especially encourages submissions tha=
t investigate research issues shared between all the three areas.

INSS 2012 invites the submission of regular, short, and industry papers. Al=
l submissions will be peer-reviewed and evaluated on the basis of originali=
ty, significance of contribution, technical correctness, and presentation. =
Papers submitted must not be under simultaneous review for any other confer=
ence, journal, workshop, or other publication. All accepted papers will be =
published at IEEE Xplore digital library. Authors are required to attend th=
e conference to present their work.

Regular/Short Paper Track
-------------------------
Regular papers must be 4-8 pages long (two-column format) and include an ab=
stract of 100-150 words. Short papers must be 2-4 pages long (two-column fo=
rmat) and include an abstract of 100-150 words. All papers should be format=
ted according to the IEEE transactions format. Short papers are suitable fo=
r interactive discussions. Presentation time of accepted regular and short =
papers is decided on acceptance notification. Topics of regular/short paper=
 track include but are not limited to:
o    Theoretical Study on Networked Sensing Systems
o    Applications of Networked Sensing Systems
o    Prototypes, Field Studies & Test beds for Networked Sensing Systems
o    Safety and Security of Networked Sensing Systems
o    Data Management for Networked Sensing Systems
o    Middleware for Networked Sensing Systems
o    Self-Organizing Networked Sensing Systems and Autonomic/Bio-Inspired S=
ystems
o    Intelligent Sensing Systems
o    Sensor Phenomena and Modeling
o    Sensors and Sensing Systems
o    Sensors and Actuators for Smart Meter and Smart Grid Applications
o    Human Behavior Sensing and Ambient Support
o    Human Health Monitoring and Biomedical Measurement
o    Measurement and Control Issues in Networked Sensing Systems
o    Networked Sensing Systems involving Haptic Interactions
o    Materials, Design, Fabrication, and Packaging of Sensors

Industry Paper Track
--------------------
INSS also offers an industry track. In this track, new and interesting deve=
lopments in networks for industrial applications can be recognized, whether=
 in the area of sensor systems, wireless networks, industrial network appli=
cations, networks for safety related systems and applications, different se=
curity aspects in networks fault tolerant and redundant networks and many o=
thers. This session focuses on innovative, new and interesting network appl=
ications and research results for industries or developments which will be =
important in the near future. The industry track intends to provide discuss=
ion for practitioners, developers, and researchers in order to examine prac=
tical issues. Industry papers are suitable for industry researchers to pres=
ent not only technical, but also practical issues surrounding production, d=
eployment, and commercialisation of networked sensing technology. Industry =
papers must be 2-4 pages long (two-column format) and include an abstract o=
f 100-150 words. Papers should be formatted according to the IEEE transacti=
ons format. The submitted industry papers will be reviewed by industry trac=
k TPC members and accepted papers will be presented in the main conference'=
s industry track session. The industry track aims at providing a forum amon=
g practitioners, developers, and researchers to discuss practical issues in=
cluding but not limited to:
o    Designing networked sensing systems for commercial applications
o    Service models and architectures for successful deployments
o    Production engineering for networked sensing systems
o    Deployment and evaluation of networked sensing systems in practical ap=
plications

Paper submission
----------------
Submissions should be in PDF format and will be handled through EDAS.
http://edas.info/N11501

Important Dates (both regular/short and industry tracks)
--------------------------------------------------------
Paper Submissions Due: January 16th, 2012
Notification of Acceptance: March 15th, 2012
Camera-Ready Papers: April 15th, 2012
Conference Dates: June 11 - 14, 2012

Committees
----------

Honorary Chair:
Danny Goderis, Bell Labs, Alcatel-Lucent, Belgium

General Chairs:
Fahim Kawsar, Bell Labs, Alcatel-Lucent, Belgium
Tian He, University of Minnesota, USA

Program Chair:
Hiroyuki Shinoda, University of Tokyo, Japan

Program Vice Chairs:
Niwat Thepvilojanapong, Mie University, Japan
Hedda Schmidtke, Germany
Simon Egerton, Monash University, Malaysia and Australia

Industrial Track Chairs:
Xueli An, Bell Labs, Alcatel-Lucent, Belgium
Bing Zhang, NICT, Japan

Workshop Chairs:
Fabio Pianese, Bell Labs, Alcatel-Lucent, Belgium
Takuro Yonezawa, Keio University, Japan

Poster Chairs:
Andreas Bulling, University of Cambridge / Lancaster University, UK
Jean-Baptiste Labrune, Bell Labs, Alcatel-Lucent, France

Demonstration Chairs:
Mathieu Boussard, Bell Labs, Alcatel-Lucent, France
Till Riedel, TecO and Karlsruhe Institute of Technology, Germany

IEEE Liaison Chairs:
Makoto Iwasaki, Nagoya Institute of Technology
Kiyoshi Ohishi, Nagaoka University of Technology
Kohei Ohnishi, Keio University, Japan

Web Chair:
Henning Schild, Bell Labs, Alcatel-Lucent, Belgium

Publicity Chair:
Alireza Sahami, Univeristy of Stuttgart, Germany

Student Volunteer Chair:
Jo Vermeulen, Hasselt University, Belgium

Publication Chair:
Hiroki Ishizuka, University of Tokyo, Japan

Local Arrangement:
Brigitte Van Dam, Alcatel-Lucent, Belgium
Rita Daelemans, Alcatel-Lucent, Belgium

Technical Program Committee:
Abdelsalam Helal, University of Florida
Alexander De Luca, University of Munich
Andreas Bulling, University of Cambridge
Anthony Rowe, Carnegie Mellon University
Christian Decker, TecO, University of Karlsruhe
David Evans, University of Cambridge
Daeyoung Kim, Korea Advanced Institute of Science and Technology
Florian Michahelles, ETH Zurich
Gang Zhou, College of William and Mary
Gerd Kortuem, Lancaster University
Hideyuki Kawashima, University of Tsukuba
Hideto Iwaoka, Kanazawa Institute of Technology
Hiroshi Noguchi, The University of Tokyo
Hyunyoung Lee, Texas A&M University
Jin Nakazawa, Keio University
Kristof Van Laerhoven, TU Darmstadt
Matthias Woehrle, Delft University of Technology
Masateru Minami, Shibaura Institute of Technology
Marc Langheinrich, University of Lugano (USI)
Marcelo Pias, Cambridge University
Michael Beigl, Karlsruhe Institute of Technology
Narito Kurata, Kajima
Paul Havinga, University of Twente
Pedro Marr=DBn, University of Duisburg-Essen and Fraunhofer FKIE
Petteri Nurmi, Helsinki Institute for Information Technology HIIT
Polly Huang, National Taiwan University
Satoshi Kurihara, Osaka University
Satoshi Honda, Keio University
Shan Lin, Temple University
Susanna Pirttikangas, University of Oulu
Tatsuo Nakajima, Waseda University
Tarek Abdelzaher, University of Illinois, Urbana Champaign
Thomas Pl=88tz, Newcastle University
Till Riedel, TecO, Karlsruhe Institute of Technology
Yoshihiro Kawahara, The University of Tokyo
Yoshito Tobe, Tokyo Denki University
Yu Gu, Singapore University of Technology and Design

Industrial Track Committee:
Azman Lim, Japan Advanced Institute of Science and Technology (JAIST)
Cheng Guo, Technologic University of Delft
Christoph Mayer, Karlsruhe Institute of Technology (KIT)
Michael Timmers, Alcatel-Lucent Bell Labs
Nicolaie Fantana, ABB AG Forschungszentrum Deutschland
Rui Teng, National Institute of Information and Communications Technology
Takashi Matsuda, National Institute of Information and Communications Techn=
ology
Tuncer Baykas, National Institute of Information and Communications Technol=
ogy

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</head>
<body style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-lin=
e-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-fami=
ly: Calibri, sans-serif; ">
<div>
<div>Apologies for cross posting</div>
<div><br>
</div>
<div>Call for Papers</div>
<div>The Ninth International Conference of Networked Sensing Systems (INSS =
2012)</div>
<div><br>
</div>
<div>Antwerp, Belgium, June 11-14, 2012</div>
<div>Extended Submission Deadline: January 16, 2012</div>
<div><a href=3D"http://www.inss-conf.org/2012">http://www.inss-conf.org/201=
2</a></div>
<div><br>
</div>
<div>Scope and Theme:</div>
<div>---------------</div>
<div>During the past years, the International Conference on Networked Sensi=
ng Systems (INSS) has established itself as a scientific event where academ=
ic and industrial experts from the areas of next generation sensor systems,=
 sensor network applications, and
 measurement and control engineering come together. The INSS provides a for=
um to hear about the latest developments in these areas, to exchange ideas,=
 and to start up collaborations within these fields and between industry an=
d academia.</div>
<div><br>
</div>
<div>INSS 2012 is the ninth annual conference in the series, and features a=
 highly selective technical program. We invite outstanding research papers =
from the field of sensor technology, wireless networking, or applications o=
f networked sensor systems. The
 conference especially encourages submissions that investigate research iss=
ues shared between all the three areas.</div>
<div><br>
</div>
<div>INSS 2012 invites the submission of regular, short, and industry paper=
s. All submissions will be peer-reviewed and evaluated on the basis of orig=
inality, significance of contribution, technical correctness, and presentat=
ion. Papers submitted must not be
 under simultaneous review for any other conference, journal, workshop, or =
other publication. All accepted papers will be published at IEEE Xplore dig=
ital library. Authors are required to attend the conference to present thei=
r work.</div>
<div><br>
</div>
<div>Regular/Short Paper Track</div>
<div>-------------------------</div>
<div>Regular papers must be 4-8 pages long (two-column format) and include =
an abstract of 100-150 words. Short papers must be 2-4 pages long (two-colu=
mn format) and include an abstract of 100-150 words. All papers should be f=
ormatted according to the IEEE transactions
 format. Short papers are suitable for interactive discussions. Presentatio=
n time of accepted regular and short papers is decided on acceptance notifi=
cation. Topics of regular/short paper track include but are not limited to:=
</div>
<div>o &nbsp; &nbsp;Theoretical Study on Networked Sensing Systems</div>
<div>o &nbsp; &nbsp;Applications of Networked Sensing Systems</div>
<div>o &nbsp; &nbsp;Prototypes, Field Studies &amp; Test beds for Networked=
 Sensing Systems</div>
<div>o &nbsp; &nbsp;Safety and Security of Networked Sensing Systems</div>
<div>o &nbsp; &nbsp;Data Management for Networked Sensing Systems</div>
<div>o &nbsp; &nbsp;Middleware for Networked Sensing Systems</div>
<div>o &nbsp; &nbsp;Self-Organizing Networked Sensing Systems and Autonomic=
/Bio-Inspired Systems</div>
<div>o &nbsp; &nbsp;Intelligent Sensing Systems</div>
<div>o &nbsp; &nbsp;Sensor Phenomena and Modeling</div>
<div>o &nbsp; &nbsp;Sensors and Sensing Systems</div>
<div>o &nbsp; &nbsp;Sensors and Actuators for Smart Meter and Smart Grid Ap=
plications</div>
<div>o &nbsp; &nbsp;Human Behavior Sensing and Ambient Support</div>
<div>o &nbsp; &nbsp;Human Health Monitoring and Biomedical Measurement</div=
>
<div>o &nbsp; &nbsp;Measurement and Control Issues in Networked Sensing Sys=
tems</div>
<div>o &nbsp; &nbsp;Networked Sensing Systems involving Haptic Interactions=
</div>
<div>o &nbsp; &nbsp;Materials, Design, Fabrication, and Packaging of Sensor=
s</div>
<div><br>
</div>
<div>Industry Paper Track</div>
<div>--------------------</div>
<div>INSS also offers an industry track. In this track, new and interesting=
 developments in networks for industrial applications can be recognized, wh=
ether in the area of sensor systems, wireless networks, industrial network =
applications, networks for safety
 related systems and applications, different security aspects in networks f=
ault tolerant and redundant networks and many others. This session focuses =
on innovative, new and interesting network applications and research result=
s for industries or developments
 which will be important in the near future. The industry track intends to =
provide discussion for practitioners, developers, and researchers in order =
to examine practical issues. Industry papers are suitable for industry rese=
archers to present not only technical,
 but also practical issues surrounding production, deployment, and commerci=
alisation of networked sensing technology. Industry papers must be 2-4 page=
s long (two-column format) and include an abstract of 100-150 words. Papers=
 should be formatted according to
 the IEEE transactions format. The submitted industry papers will be review=
ed by industry track TPC members and accepted papers will be presented in t=
he main conference's industry track session. The industry track aims at pro=
viding a forum among practitioners,
 developers, and researchers to discuss practical issues including but not =
limited to:</div>
<div>o &nbsp; &nbsp;Designing networked sensing systems for commercial appl=
ications</div>
<div>o &nbsp; &nbsp;Service models and architectures for successful deploym=
ents</div>
<div>o &nbsp; &nbsp;Production engineering for networked sensing systems</d=
iv>
<div>o &nbsp; &nbsp;Deployment and evaluation of networked sensing systems =
in practical applications</div>
<div><br>
</div>
<div>Paper submission</div>
<div>----------------</div>
<div>Submissions should be in PDF format and will be handled through EDAS.<=
/div>
<div><a href=3D"http://edas.info/N11501">http://edas.info/N11501</a></div>
<div><br>
</div>
<div>Important Dates (both regular/short and industry tracks)</div>
<div>--------------------------------------------------------</div>
<div>Paper Submissions Due: January 16th, 2012</div>
<div>Notification of Acceptance: March 15th, 2012</div>
<div>Camera-Ready Papers: April 15th, 2012</div>
<div>Conference Dates: June 11 - 14, 2012</div>
<div><br>
</div>
<div>Committees</div>
<div>----------</div>
<div><br>
</div>
<div>Honorary Chair:</div>
<div>Danny Goderis, Bell Labs, Alcatel-Lucent, Belgium</div>
<div><br>
</div>
<div>General Chairs:</div>
<div>Fahim Kawsar, Bell Labs, Alcatel-Lucent, Belgium</div>
<div>Tian He, University of Minnesota, USA</div>
<div><br>
</div>
<div>Program Chair:</div>
<div>Hiroyuki Shinoda, University of Tokyo, Japan</div>
<div><br>
</div>
<div>Program Vice Chairs:</div>
<div>Niwat Thepvilojanapong, Mie University, Japan</div>
<div>Hedda Schmidtke, Germany</div>
<div>Simon Egerton, Monash University, Malaysia and Australia</div>
<div><br>
</div>
<div>Industrial Track Chairs:</div>
<div>Xueli An, Bell Labs, Alcatel-Lucent, Belgium</div>
<div>Bing Zhang, NICT, Japan</div>
<div><br>
</div>
<div>Workshop Chairs:</div>
<div>Fabio Pianese, Bell Labs, Alcatel-Lucent, Belgium</div>
<div>Takuro Yonezawa, Keio University, Japan</div>
<div><br>
</div>
<div>Poster Chairs:</div>
<div>Andreas Bulling, University of Cambridge / Lancaster University, UK</d=
iv>
<div>Jean-Baptiste Labrune, Bell Labs, Alcatel-Lucent, France</div>
<div><br>
</div>
<div>Demonstration Chairs:</div>
<div>Mathieu Boussard, Bell Labs, Alcatel-Lucent, France</div>
<div>Till Riedel, TecO and Karlsruhe Institute of Technology, Germany</div>
<div><br>
</div>
<div>IEEE Liaison Chairs:</div>
<div>Makoto Iwasaki, Nagoya Institute of Technology</div>
<div>Kiyoshi Ohishi, Nagaoka University of Technology</div>
<div>Kohei Ohnishi, Keio University, Japan</div>
<div><br>
</div>
<div>Web Chair:</div>
<div>Henning Schild, Bell Labs, Alcatel-Lucent, Belgium</div>
<div><br>
</div>
<div>Publicity Chair:</div>
<div>Alireza Sahami, Univeristy of Stuttgart, Germany</div>
<div><br>
</div>
<div>Student Volunteer Chair:</div>
<div>Jo Vermeulen, Hasselt University, Belgium</div>
<div><br>
</div>
<div>Publication Chair:</div>
<div>Hiroki Ishizuka, University of Tokyo, Japan</div>
<div><br>
</div>
<div>Local Arrangement:</div>
<div>Brigitte Van Dam, Alcatel-Lucent, Belgium</div>
<div>Rita Daelemans, Alcatel-Lucent, Belgium</div>
<div><br>
</div>
<div>Technical Program Committee:</div>
<div>Abdelsalam Helal, University of Florida</div>
<div>Alexander De Luca, University of Munich</div>
<div>Andreas Bulling, University of Cambridge</div>
<div>Anthony Rowe, Carnegie Mellon University</div>
<div>Christian Decker, TecO, University of Karlsruhe</div>
<div>David Evans, University of Cambridge</div>
<div>Daeyoung Kim, Korea Advanced Institute of Science and Technology</div>
<div>Florian Michahelles, ETH Zurich</div>
<div>Gang Zhou, College of William and Mary</div>
<div>Gerd Kortuem, Lancaster University</div>
<div>Hideyuki Kawashima, University of Tsukuba</div>
<div>Hideto Iwaoka, Kanazawa Institute of Technology</div>
<div>Hiroshi Noguchi, The University of Tokyo</div>
<div>Hyunyoung Lee, Texas A&amp;M University</div>
<div>Jin Nakazawa, Keio University</div>
<div>Kristof Van Laerhoven, TU Darmstadt</div>
<div>Matthias Woehrle, Delft University of Technology</div>
<div>Masateru Minami, Shibaura Institute of Technology</div>
<div>Marc Langheinrich, University of Lugano (USI)</div>
<div>Marcelo Pias, Cambridge University</div>
<div>Michael Beigl, Karlsruhe Institute of Technology</div>
<div>Narito Kurata, Kajima</div>
<div>Paul Havinga, University of Twente</div>
<div>Pedro Marr=DBn, University of Duisburg-Essen and Fraunhofer FKIE</div>
<div>Petteri Nurmi, Helsinki Institute for Information Technology HIIT</div=
>
<div>Polly Huang, National Taiwan University</div>
<div>Satoshi Kurihara, Osaka University</div>
<div>Satoshi Honda, Keio University</div>
<div>Shan Lin, Temple University</div>
<div>Susanna Pirttikangas, University of Oulu</div>
<div>Tatsuo Nakajima, Waseda University</div>
<div>Tarek Abdelzaher, University of Illinois, Urbana Champaign</div>
<div>Thomas Pl=88tz, Newcastle University</div>
<div>Till Riedel, TecO, Karlsruhe Institute of Technology</div>
<div>Yoshihiro Kawahara, The University of Tokyo</div>
<div>Yoshito Tobe, Tokyo Denki University</div>
<div>Yu Gu, Singapore University of Technology and Design</div>
<div><br>
</div>
<div>Industrial Track Committee:</div>
<div>Azman Lim, Japan Advanced Institute of Science and Technology (JAIST)<=
/div>
<div>Cheng Guo, Technologic University of Delft</div>
<div>Christoph Mayer, Karlsruhe Institute of Technology (KIT)</div>
<div>Michael Timmers, Alcatel-Lucent Bell Labs</div>
<div>Nicolaie Fantana, ABB AG Forschungszentrum Deutschland</div>
<div>Rui Teng, National Institute of Information and Communications Technol=
ogy</div>
<div>Takashi Matsuda, National Institute of Information and Communications =
Technology</div>
<div>Tuncer Baykas, National Institute of Information and Communications Te=
chnology</div>
</div>
</body>
</html>

--_000_CB1B62FD24EBCalirezasahamivisunistuttgartde_--

From internet-drafts@ietf.org  Thu Jan 12 10:49:29 2012
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Subject: [Roll] I-D Action: draft-ietf-roll-security-framework-07.txt
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A New Internet-Draft is available from the on-line Internet-Drafts director=
ies. This draft is a work item of the Routing Over Low power and Lossy netw=
orks Working Group of the IETF.

	Title           : A Security Framework for Routing over Low Power and Loss=
y Networks
	Author(s)       : Tzeta Tsao
                          Roger K. Alexander
                          Mischa Dohler
                          Vanesa Daza
                          Angel Lozano
	Filename        : draft-ietf-roll-security-framework-07.txt
	Pages           : 49
	Date            : 2012-01-12

   This document presents a security framework for routing over low
   power and lossy networks (LLN).  The development builds upon previous
   work on routing security and adapts the assessments to the issues and
   constraints specific to low power and lossy networks.  A systematic
   approach is used in defining and evaluating the security threats and
   identifying applicable countermeasures.  These assessments provide
   the basis of the security recommendations for incorporation into low
   power, lossy network routing protocols.  As an illustration, this
   framework is applied to IPv6 Routing Protocol for Low Power and Lossy
   Networks (RPL).



A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-ietf-roll-security-framework-07.t=
xt

Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/

This Internet-Draft can be retrieved at:
ftp://ftp.ietf.org/internet-drafts/draft-ietf-roll-security-framework-07.txt


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From: "amit" <azdvir@gmail.com>
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Subject: [Roll] draft-dvir-roll-security-authentication-01
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We will appreciate comments from the working group.=20

A new version of I-D, draft-dvir-roll-security-authentication-01.txt has =
been successfully submitted by Amit Dvir and posted to the IETF =
repository.

Filename:	 draft-dvir-roll-security-authentication
Revision:	 01
Title:		 Version Number and Rank Authentication
Creation date:	 2012-01-08
WG ID:		 Individual Submission
Number of pages: 24

Abstract:
   Designing a routing protocol for large low-power and lossy networks
   (LLNs), consisting of thousands of constrained nodes and unreliable
   links, presents new challenges.  The IPv6 Routing Protocol for Low-
   power and Lossy Networks (RPL), have been developed by the IETF ROLL
   Working Group as a preferred routing protocol to provide IPv6 routing
   functionality in LLNs.  Unfortunately, the currently available
   security services in RPL will not protect against a compromised
   internal node that can construct and disseminate fake messages.
   Therefore, in RPL special security care must be taken when the
   Destination Oriented Directed Acyclic Graph (DODAG) root is updating
   the Version Number by which reconstruction of the routing topology
   can be initiated.  The same care also must be taken to prevent an
   internal attacker (compromised DODAG node) to publish decreased Rank
   value, which causes a large part of the DODAG to connect to the DODAG
   root via the attacker and give it the ability to eavesdrop or
   manipulate a large part of the network traffic.  In this document, a
   new security service is described that prevents any misbehaving DODAG
   node from illegitimately increasing the Version Number or publish
   illegitimately decreased Rank values.

                                                                         =
        =20


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Subject: [Roll] Roll Digest, Vol 48, Issue 1 - roll-rpl-industrial-applicability
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Regarding your security comment, don=92t you think that the basic =
assumption
of the RPL draft that the devices are trusted, is problematic. Moreover,
roll-rpl-industrial-applicability consider the case that other layers =
will
take care about the security (section 5.3), however, counting on upper =
layer
can't solve security problems of the RPL parameters and the link layer =
can't
be trusted when node can be compromise.=20
I know that compromise is out of the scope but maybe we need to start
thinking about those cases.


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=F0=E5=F9=E0: Roll Digest, Vol 48, Issue 1

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Today's Topics:

   1. roll-rpl-industrial-applicability (Michael Richardson)


----------------------------------------------------------------------

Message: 1
Date: Mon, 02 Jan 2012 11:16:06 -0500
From: Michael Richardson <mcr@sandelman.ca>
To: IETF ROLL <roll@ietf.org>
Subject: [Roll] roll-rpl-industrial-applicability
Message-ID: <24984.1325520966@marajade.sandelman.ca>
Content-Type: text/plain; charset=3D"us-ascii"


Some comments on draft-phinney-roll-rpl-industrial-applicability-00.
I promised myself during the last IETF that I'd read it, and new year's =
day
was a good to do that.

pg4:
>   A field device that belongs to an instance uses the OF to determine
>   which DODAG and which Version of that DODAG the device should join.

I did not think that the OF would tell us which Version of a DODAG to =
use.
The version simply increments... I guess if the new values from the new
version do not satisfy the OF, one could stay with the previously =
calculated
parents, etc.

I was very pleased to read section 3.1.  Deployment scenarii.
In it, 6 scenarios are described:
     P1: Construction or major modification phase
     P2: Planned startup phase
     P3: Normal operation phase
     P4: Planned shutdown phase
     P5: Plant decommissioning phase.
     P6: Post-emergency recovery and repair phase.

The analysis that follows concerns me:

>   The deployment scenarios for wireless LLN devices may be different =
in
>   each of these phases.  In particular, during the Construction or
>   major modification phase (P1), LLN devices may be installed months
>   before the intended LLN can become usefully operational (because
>   needed routers and infrastructure devices are not yet installed or
>   active), and there are likely to be many personnel in whom the plant
>   owner/operator has only limited trust, such as subcontractors and
>   others in the plant area who have undergone only a cursory =
background
>   investigation (if any at all).  In general, during this phase, plant

I very much wish that this had appeared in RFC5673 as input into the
security mechanism.  I think that a major limitation in the current
documents in the security area here.  I could go on awhile about how I =
think
things should work to solve this; I didn't do that before, because I =
didn't
think that there was real requirements for a system a flexible
as I envision.  =20

NOTE: this is not a fault of this document, it's a failure of our
      requirements process for security.

draft-phinney-roll-rpl-industrial-applicability-00 recaps too many =
things,
and I find is way too chatty.  I expect an applicability statement to be
more to the point.  This relates to section 3 mostly, I think.

The chart in section 3.3:

+---------------------+------------------------------------------------+
|   Phase \  Class    |   0       1       2       3       4       5    |
+=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D+=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D+
|   Construction      |                   X       X       X       X    |
+---------------------+------------------------------------------------+
|   Planned startup   |                   X       X       X       X    |
+---------------------+------------------------------------------------+
|   Normal operation  |                           ?       ?       ?    |
+---------------------+------------------------------------------------+
|   Planned shutdown  |                   X       X       X       X    |
+---------------------+------------------------------------------------+
|Plant decommissioning|                   X       X       X       X    |
+---------------------+------------------------------------------------+
| Recovery and repair |   X       X       X       X       X       X    |
+---------------------+------------------------------------------------+

also is of concern. What it says is that RPL can't be used for=20

      *  Class 0: Emergency action - Always a critical function
      *  Class 1: Closed loop regulatory control - Often a critical
         function
      *  Class 2: Closed loop supervisory control - Usually non-critical
         function

during any phase, except during repair.  And, that we don't even know if =
it
can be used for Normal operation!  That's hardly an huge endorsement!

Thank you kindly for this -00 document.  I realize that section 5 is =
where
the meat will go, and I look forward to some clear recommendations here.

--=20
]       He who is tired of Weird Al is tired of life!           |  =
firewalls
[
]   Michael Richardson, Sandelman Software Works, Ottawa, ON    |net
architect[
] mcr@sandelman.ottawa.on.ca http://www.sandelman.ottawa.on.ca/ |device
driver[
   Kyoto Plus: watch the video =
<http://www.youtube.com/watch?v=3Dkzx1ycLXQSE>
	               then sign the petition.=20


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Hello Amit

In practice, as of today, the main standards in the industrial space =
rely on L2 security that is set up during a join process.=20
ISA100.11a that also has our traditional upper layers uses the same =
crypto at L2 and L4 but has no L3 security.  This enables to reuse =
hardware support that is available in common chipsets.
The RPL draft provides for securing its own when L2 security is not in =
place but I do not see that in use in industrial space any time soon.

Was that your questions?

Pascal

-----Original Message-----
From: roll-bounces@ietf.org [mailto:roll-bounces@ietf.org] On Behalf Of =
amit
Sent: mardi 17 janvier 2012 15:17
To: roll@ietf.org
Subject: [Roll] Roll Digest, Vol 48,Issue 1 - =
roll-rpl-industrial-applicability

Regarding your security comment, don=92t you think that the basic =
assumption of the RPL draft that the devices are trusted, is =
problematic. Moreover, roll-rpl-industrial-applicability consider the =
case that other layers will take care about the security (section 5.3), =
however, counting on upper layer can't solve security problems of the =
RPL parameters and the link layer can't be trusted when node can be =
compromise.=20
I know that compromise is out of the scope but maybe we need to start =
thinking about those cases.


-----=E4=E5=E3=F2=E4 =EE=F7=E5=F8=E9=FA-----
=EE=E0=FA: roll-bounces@ietf.org [mailto:roll-bounces@ietf.org] =
=E1=F9=ED roll-request@ietf.org
=F0=F9=EC=E7: =E9=E5=ED=A0=E1 02 =E9=F0=E5=E0=F8 2012 22:00
=E0=EC: roll@ietf.org
=F0=E5=F9=E0: Roll Digest, Vol 48, Issue 1

If you have received this digest without all the individual message =
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Today's Topics:

   1. roll-rpl-industrial-applicability (Michael Richardson)


----------------------------------------------------------------------

Message: 1
Date: Mon, 02 Jan 2012 11:16:06 -0500
From: Michael Richardson <mcr@sandelman.ca>
To: IETF ROLL <roll@ietf.org>
Subject: [Roll] roll-rpl-industrial-applicability
Message-ID: <24984.1325520966@marajade.sandelman.ca>
Content-Type: text/plain; charset=3D"us-ascii"


Some comments on draft-phinney-roll-rpl-industrial-applicability-00.
I promised myself during the last IETF that I'd read it, and new year's =
day was a good to do that.

pg4:
>   A field device that belongs to an instance uses the OF to determine
>   which DODAG and which Version of that DODAG the device should join.

I did not think that the OF would tell us which Version of a DODAG to =
use.
The version simply increments... I guess if the new values from the new =
version do not satisfy the OF, one could stay with the previously =
calculated parents, etc.

I was very pleased to read section 3.1.  Deployment scenarii.
In it, 6 scenarios are described:
     P1: Construction or major modification phase
     P2: Planned startup phase
     P3: Normal operation phase
     P4: Planned shutdown phase
     P5: Plant decommissioning phase.
     P6: Post-emergency recovery and repair phase.

The analysis that follows concerns me:

>   The deployment scenarios for wireless LLN devices may be different =
in
>   each of these phases.  In particular, during the Construction or
>   major modification phase (P1), LLN devices may be installed months
>   before the intended LLN can become usefully operational (because
>   needed routers and infrastructure devices are not yet installed or
>   active), and there are likely to be many personnel in whom the plant
>   owner/operator has only limited trust, such as subcontractors and
>   others in the plant area who have undergone only a cursory =
background
>   investigation (if any at all).  In general, during this phase, plant

I very much wish that this had appeared in RFC5673 as input into the =
security mechanism.  I think that a major limitation in the current =
documents in the security area here.  I could go on awhile about how I =
think things should work to solve this; I didn't do that before, because =
I didn't think that there was real requirements for a system a flexible
as I envision.  =20

NOTE: this is not a fault of this document, it's a failure of our
      requirements process for security.

draft-phinney-roll-rpl-industrial-applicability-00 recaps too many =
things, and I find is way too chatty.  I expect an applicability =
statement to be more to the point.  This relates to section 3 mostly, I =
think.

The chart in section 3.3:

+---------------------+------------------------------------------------+
|   Phase \  Class    |   0       1       2       3       4       5    |
+=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D+=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D+
|   Construction      |                   X       X       X       X    |
+---------------------+------------------------------------------------+
|   Planned startup   |                   X       X       X       X    |
+---------------------+------------------------------------------------+
|   Normal operation  |                           ?       ?       ?    |
+---------------------+------------------------------------------------+
|   Planned shutdown  |                   X       X       X       X    |
+---------------------+------------------------------------------------+
|Plant decommissioning|                   X       X       X       X    |
+---------------------+------------------------------------------------+
| Recovery and repair |   X       X       X       X       X       X    |
+---------------------+------------------------------------------------+

also is of concern. What it says is that RPL can't be used for=20

      *  Class 0: Emergency action - Always a critical function
      *  Class 1: Closed loop regulatory control - Often a critical
         function
      *  Class 2: Closed loop supervisory control - Usually non-critical
         function

during any phase, except during repair.  And, that we don't even know if =
it can be used for Normal operation!  That's hardly an huge endorsement!

Thank you kindly for this -00 document.  I realize that section 5 is =
where the meat will go, and I look forward to some clear recommendations =
here.

--=20
]       He who is tired of Weird Al is tired of life!           |  =
firewalls
[
]   Michael Richardson, Sandelman Software Works, Ottawa, ON    |net
architect[
] mcr@sandelman.ottawa.on.ca http://www.sandelman.ottawa.on.ca/ |device =
driver[
   Kyoto Plus: watch the video =
<http://www.youtube.com/watch?v=3Dkzx1ycLXQSE>
	               then sign the petition.=20


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From mcr@sandelman.ca  Tue Jan 17 07:49:53 2012
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--=-=-=


"security comment' extracted from original email below.

What I see is that the LLN (I say this because it might be more than
RPL) needs to be able to provide a variety of security services over the
lifetime of the LLN.

In particular it seems to me that the LLN needs to provide a relatively
trivial security system during initial building of the plant.
By this, I mean, very trivial to configure, perhaps involving well
known "secret"s, not necessarily weak encryption.  In fact, you want to
do all the testing with the full key strength so that if there are
cryptographic related performance problems they show up immediately.

You disclose nothing useful to the untrusted contractors who install
things as they configure the system using the maint/field password. (To
recall the situation of VAX/VMS in the 1980s)

Then, the plant has to be "upgraded" to full security, and this has to
be done easily by internal personnel.  This means that the upgrade has
to be performed using standard protocols, physical interfaces and user
interfaces!    There is a risk, of course, that the plant will go into
production with the factory default passwords.

I want to further point out that in many places, some part of the plant
is ALWAYS under going maintenance, and so the LLN has to be able to deal
with multiple security simultaenous security regimes.

Can the current Layer-2 solutions deal with this?
I know that 802.1x/EAP protocols support it, but in the field, it's
either unimplemented, or too hard to support.   Can Zigbee's security model?

What we need to do, I think, is to realize that we have to have some
coupling of layer-2 and layer-3 security services.  Too much is bad, but
we need at least channel binding.


>>>>> "amit" == amit  <azdvir@gmail.com> writes:
    amit> Regarding your security comment, don't you think that the

    amit> basic assumption of the RPL draft that the devices are
    amit> trusted, is problematic. Moreover,
    amit> roll-rpl-industrial-applicability consider the case that other
    amit> layers will take care about the security (section 5.3),
    amit> however, counting on upper layer can't solve security problems
    amit> of the RPL parameters and the link layer can't be trusted when
    amit> node can be compromise. I know that compromise is out of the
    amit> scope but maybe we need to start thinking about those cases.


    mcr> The analysis that follows concerns me:

    mcr> The deployment scenarios for wireless LLN devices may be
    mcr> different in each of these phases.  In particular, during the
    mcr> Construction or major modification phase (P1), LLN devices may be
    mcr> installed months before the intended LLN can become usefully
    mcr> operational (because needed routers and infrastructure devices
    mcr> are not yet installed or active), and there are likely to be many
    mcr> personnel in whom the plant owner/operator has only limited
    mcr> trust, such as subcontractors and others in the plant area who
    mcr> have undergone only a cursory background investigation (if any at
    mcr> all).  In general, during this phase, plant


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From mcr@sandelman.ca  Tue Jan 17 09:36:57 2012
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>>>>> "Pascal" == Pascal Thubert <(pthubert)" <pthubert@cisco.com>> writes:
    Pascal> Was that your questions?

Amit was responding to my email, wherein I noted that our security
features do not in fact meet the expectations of the industrial
applicability statement.  Nor, as far as I can see, do layer-2
mechanisms help at all, as they provide no way to limit trust to
subcontractors.  

They are boolean (you either have the network key, or you do not).

    > The analysis that follows concerns me:

    >> The deployment scenarios for wireless LLN devices may be
    >> different in each of these phases.  In particular, during the
    >> Construction or major modification phase (P1), LLN devices may be
    >> installed months before the intended LLN can become usefully
    >> operational (because needed routers and infrastructure devices
    >> are not yet installed or active), and there are likely to be many
    >> personnel in whom the plant owner/operator has only limited
    >> trust, such as subcontractors and others in the plant area who
    >> have undergone only a cursory background investigation (if any at
    >> all).  In general, during this phase, plant

    > I very much wish that this had appeared in RFC5673 as input
    > into the security mechanism.  I think that a major
    > limitation in the current documents in the security area
    > here.  


From adrian@olddog.co.uk  Thu Jan 19 05:09:35 2012
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Subject: [Roll] FW: Smart Object Security Workshop Announcement
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I am unclear as to why this announcement was not also sent to the ROLL working
group, but I have no objection to you knowing about it :-)

Cheers,
Adrian

> -----Original Message-----
> From: ietf-bounces@ietf.org [mailto:ietf-bounces@ietf.org] On Behalf Of Hannes
> Tschofenig
> Sent: 19 January 2012 10:22
> To: IETF-Discussion list
> Subject: Smart Object Security Workshop Announcement
> 
> Hi all,
> 
> we would like to make you aware of a workshop on Smart Object Security on the
> 23rd March 2012 in Paris (attached to the IETF meeting).
> 
> We are seeking input from participants to share their thoughts about the
ability
> to utilize existing and widely deployed security mechanisms for smart objects.
> 
> In particular, we are interested to hear about:
> 	. What techniques for issuing credentials have been deployed?
> 	. What extensions are useful to make existing security protocols more
> suitable for smart objects?
> 	. What type of credentials are frequently used?
> 	. What experience has been gained when implementing and deploying
> application layer, transport layer, network layer, and link layer security
> mechanisms (or a mixture of all of them)?
> 	. How can "clever" implementations make security protocols a better fit
> for constrained devices?
> 	. Are there lessons we can learn from existing deployments?
> 
> More workshop details can be found on the webpage of our host:
> http://www.lix.polytechnique.fr/hipercom/SmartObjectSecurity/
> 
> If you plan to participate at the workshop please drop us a message (with a
short
> description of what you are planning to contribute) and we can give you an
early
> notice regarding your participation.
> 
> Greetings
> The Workshop Organizers
> 
> _______________________________________________
> Ietf mailing list
> Ietf@ietf.org
> https://www.ietf.org/mailman/listinfo/ietf


From internet-drafts@ietf.org  Thu Jan 19 07:50:35 2012
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Subject: [Roll] I-D Action: draft-ietf-roll-p2p-rpl-06.txt
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A New Internet-Draft is available from the on-line Internet-Drafts director=
ies. This draft is a work item of the Routing Over Low power and Lossy netw=
orks Working Group of the IETF.

	Title           : Reactive Discovery of Point-to-Point Routes in Low Power=
 and Lossy Networks
	Author(s)       : Mukul Goyal
                          Emmanuel Baccelli
                          Matthias Philipp
                          Anders Brandt
                          Jerald Martocci
	Filename        : draft-ietf-roll-p2p-rpl-06.txt
	Pages           : 27
	Date            : 2012-01-19

   This document specifies a point-to-point route discovery mechanism,
   complementary to the RPL core functionality.  This mechanism allows
   an IPv6 router to discover and establish, on demand, a route to
   another IPv6 router in the LLN such that the discovered route meets
   specified metrics constraints, without necessarily going along the
   DAG links established by core RPL.


A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-ietf-roll-p2p-rpl-06.txt

Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/

This Internet-Draft can be retrieved at:
ftp://ftp.ietf.org/internet-drafts/draft-ietf-roll-p2p-rpl-06.txt


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Date: Thu, 19 Jan 2012 11:08:11 -0600 (CST)
From: Mukul Goyal <mukul@uwm.edu>
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Hi all

This version of the draft is the result of extensive testing with two P2P-RPL implementations (by INRIA and Sigma Design) and a thorough review by the authors and implementors. I will be posting the main differences over the previous version shortly.

We (the authors) think that we are done with the draft and it is ready for the last call.

Kindly review this draft and let me know if you would like to see any changes before the last call begins. I will be requesting a last call on this draft in a week or so. Hopefully, this will give enough time for people to send comments.

Thanks
Mukul
 
----- Forwarded Message -----
From: internet-drafts@ietf.org
To: i-d-announce@ietf.org
Cc: roll@ietf.org
Sent: Thursday, January 19, 2012 9:50:21 AM
Subject: [Roll] I-D Action: draft-ietf-roll-p2p-rpl-06.txt


A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Routing Over Low power and Lossy networks Working Group of the IETF.

	Title           : Reactive Discovery of Point-to-Point Routes in Low Power and Lossy Networks
	Author(s)       : Mukul Goyal
                          Emmanuel Baccelli
                          Matthias Philipp
                          Anders Brandt
                          Jerald Martocci
	Filename        : draft-ietf-roll-p2p-rpl-06.txt
	Pages           : 27
	Date            : 2012-01-19

   This document specifies a point-to-point route discovery mechanism,
   complementary to the RPL core functionality.  This mechanism allows
   an IPv6 router to discover and establish, on demand, a route to
   another IPv6 router in the LLN such that the discovered route meets
   specified metrics constraints, without necessarily going along the
   DAG links established by core RPL.


A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-ietf-roll-p2p-rpl-06.txt

Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/

This Internet-Draft can be retrieved at:
ftp://ftp.ietf.org/internet-drafts/draft-ietf-roll-p2p-rpl-06.txt

_______________________________________________
Roll mailing list
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Date: Thu, 19 Jan 2012 21:04:26 -0600 (CST)
From: Mukul Goyal <mukul@uwm.edu>
To: roll  <roll@ietf.org>
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Subject: [Roll] Changes in p2p-rpl-06 over p2p-rpl-05
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Here is a summary of the changes in p2p-rpl-06 over p2p-rpl-05:

1. Introduced a new Mode of Operation - P2P Route Discovery Mode. DIOs in P2P-RPL MUST use this MOP. This ensures that RPL routers that do not understand P2P-RPL may only join as leaf nodes in the temporary DAGs used in P2P-RPL and do not inadvertently participate in a P2P-RPL route discovery.

2. Specified a default DODAG Configuration Option that comes in effect if the P2P mode DIO does not include an explicit one.

3. Replaced "Rem" field in P2P Route Discovery Option with "MaxRank/NH" field:

a) Rem field was used to indicate the number of empty slots in the Address vector. We thought that it would be possible for a node to simply modify a received DIO and transmit it. But, later on, we realized that since a DIO transmission is triggered by the Trickle timer firing, a router would have to always create a new DIO packet. Thus, there was no point any more in carrying empty slots in the Address vector. So, we replaced "Rem" field with a "MaxRank/NH" field.  

b) The "MaxRank/NH" field serves as the MaxRank when the P2P Route Discovery Option is carried inside a DIO. This field can be used to specify a constraint on the max rank that a router can have in the temporary DAG being used for a P2P-RPL route discovery. This field provides a way to specify a constraint without including a Metric Container. This field is particularly useful if OF0 (which does not use RPL routing metrics) is the objective function in use. Now, a P2P mode DIO, using OF0 as the OF, can avoid including a Metric Container (and thus save some bytes).

c) The "MaxRank/NH" field serves as the "NH(Next Hop)" field when the P2P Route Discovery Option is carried inside a DRO. This field indicates the index of the next hop address inside the Address vector.

4. Clarified that all routers participating in a P2P-RPL route discovery, including the origin and the target MUST join the temporary DAG being created for the purpose.

5. Changes to how "Consistent/Inconsistent" events are defined for Trickle operation in P2P-RPL:
a) New rule: The receipt of a P2P mode DIO from a parent in the temporary DAG
      is considered neither "consistent" nor "inconsistent" if it does
      not allow the router to advertise a better route than before.
In the absence of this rule, a router was suppressing its DIO because it received a "consistent" DIO from its parent. (The redundancy constant was 1). This was hampering the route discovery.

b) Clarified that the Imin parameter SHOULD be set taking in account the connectivity within the network. A small Imin value in a highly connected LLN could cause a DIO storm. This is because the first receipt of a DIO about a temporary DAG is treated as an inconsistent event and would cause the Trickle timer to reset to Imin.

c) Clarified that Imax should be set to a large value so that it is not a factor in the Trickle operation during the limited life of the temporary DAG.

d) Clarified that redundancy constant should be set to a value larger than 1 if packet loss rates are high. For moderate/low packet loss rates, the redundancy constant should be 1 to avoid unnecessary DIO generation.

6. Specified that a received P2P mode DIO must be dropped if the advertized rank is INFINITE_RANK (so any DIO advertized by a non-P2P-RPL router, that joined the temporary DAG as a leaf, would be dropped) or more than the MaxRank.

7. Added a section on interoperability with core RPL.

Thanks
Mukul

From emmanuel.baccelli@gmail.com  Fri Jan 20 02:44:44 2012
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Subject: Re: [Roll] Changes in p2p-rpl-06 over p2p-rpl-05
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--00235429e34c4d64f004b6f35ef9
Content-Type: text/plain; charset=ISO-8859-1

Dear all,

as mentioned by Mukul in his previous mail, the changes from -05 to -06
were prompted by the results of the latest P2P-RPL interop. This interop
was carried out last month with INRIA's implementation against Sigma
Design's implementation, and a report is available here
http://hal.inria.fr/docs/00/66/16/29/PDF/RR-7864.pdf

Experiments with P2P-RPL have also taken place on the Senslab testbed
gathering boards based on MSP430 and 802.15.4 at 2.4GHz, see for instance
the experiments documented in
http://hal.archives-ouvertes.fr/docs/00/65/16/03/PDF/SOFTCOM-2011.pdf

The INRIA implementation is available upon request.

Best regards,

Emmanuel









http://hal.inria.fr/docs/00/66/16/29/PDF/RR-7864.pdf

On Fri, Jan 20, 2012 at 4:05 AM, Mukul Goyal <mukul@uwm.edu> wrote:

> Here is a summary of the changes in p2p-rpl-06 over p2p-rpl-05:
>
> 1. Introduced a new Mode of Operation - P2P Route Discovery Mode. DIOs in
> P2P-RPL MUST use this MOP. This ensures that RPL routers that do not
> understand P2P-RPL may only join as leaf nodes in the temporary DAGs used
> in P2P-RPL and do not inadvertently participate in a P2P-RPL route
> discovery.
>
> 2. Specified a default DODAG Configuration Option that comes in effect if
> the P2P mode DIO does not include an explicit one.
>
> 3. Replaced "Rem" field in P2P Route Discovery Option with "MaxRank/NH"
> field:
>
> a) Rem field was used to indicate the number of empty slots in the Address
> vector. We thought that it would be possible for a node to simply modify a
> received DIO and transmit it. But, later on, we realized that since a DIO
> transmission is triggered by the Trickle timer firing, a router would have
> to always create a new DIO packet. Thus, there was no point any more in
> carrying empty slots in the Address vector. So, we replaced "Rem" field
> with a "MaxRank/NH" field.
>
> b) The "MaxRank/NH" field serves as the MaxRank when the P2P Route
> Discovery Option is carried inside a DIO. This field can be used to specify
> a constraint on the max rank that a router can have in the temporary DAG
> being used for a P2P-RPL route discovery. This field provides a way to
> specify a constraint without including a Metric Container. This field is
> particularly useful if OF0 (which does not use RPL routing metrics) is the
> objective function in use. Now, a P2P mode DIO, using OF0 as the OF, can
> avoid including a Metric Container (and thus save some bytes).
>
> c) The "MaxRank/NH" field serves as the "NH(Next Hop)" field when the P2P
> Route Discovery Option is carried inside a DRO. This field indicates the
> index of the next hop address inside the Address vector.
>
> 4. Clarified that all routers participating in a P2P-RPL route discovery,
> including the origin and the target MUST join the temporary DAG being
> created for the purpose.
>
> 5. Changes to how "Consistent/Inconsistent" events are defined for Trickle
> operation in P2P-RPL:
> a) New rule: The receipt of a P2P mode DIO from a parent in the temporary
> DAG
>      is considered neither "consistent" nor "inconsistent" if it does
>      not allow the router to advertise a better route than before.
> In the absence of this rule, a router was suppressing its DIO because it
> received a "consistent" DIO from its parent. (The redundancy constant was
> 1). This was hampering the route discovery.
>
> b) Clarified that the Imin parameter SHOULD be set taking in account the
> connectivity within the network. A small Imin value in a highly connected
> LLN could cause a DIO storm. This is because the first receipt of a DIO
> about a temporary DAG is treated as an inconsistent event and would cause
> the Trickle timer to reset to Imin.
>
> c) Clarified that Imax should be set to a large value so that it is not a
> factor in the Trickle operation during the limited life of the temporary
> DAG.
>
> d) Clarified that redundancy constant should be set to a value larger than
> 1 if packet loss rates are high. For moderate/low packet loss rates, the
> redundancy constant should be 1 to avoid unnecessary DIO generation.
>
> 6. Specified that a received P2P mode DIO must be dropped if the
> advertized rank is INFINITE_RANK (so any DIO advertized by a non-P2P-RPL
> router, that joined the temporary DAG as a leaf, would be dropped) or more
> than the MaxRank.
>
> 7. Added a section on interoperability with core RPL.
>
> Thanks
> Mukul
> _______________________________________________
> Roll mailing list
> Roll@ietf.org
> https://www.ietf.org/mailman/listinfo/roll
>

--00235429e34c4d64f004b6f35ef9
Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable

Dear all,<div><br></div><div>as mentioned by Mukul in his previous mail, th=
e changes from -05 to -06 were prompted by the results of the latest P2P-RP=
L interop.=A0This interop was carried out last month with INRIA&#39;s imple=
mentation against Sigma Design&#39;s implementation, and a report is availa=
ble here <a href=3D"http://hal.inria.fr/docs/00/66/16/29/PDF/RR-7864.pdf">h=
ttp://hal.inria.fr/docs/00/66/16/29/PDF/RR-7864.pdf</a></div>

<div><br></div><div>Experiments with P2P-RPL have also taken place on the S=
enslab testbed gathering boards based on MSP430 and 802.15.4 at 2.4GHz, see=
 for instance the experiments documented in=A0<a href=3D"http://hal.archive=
s-ouvertes.fr/docs/00/65/16/03/PDF/SOFTCOM-2011.pdf">http://hal.archives-ou=
vertes.fr/docs/00/65/16/03/PDF/SOFTCOM-2011.pdf</a></div>

<div><br></div><div>The INRIA implementation is available upon request.=A0<=
/div><div><br></div><div>Best regards,</div><div><br></div><div>Emmanuel</d=
iv><div><br></div><div><br></div><div><br></div><div><br></div><div><br>
</div>
<div><br></div><div><br></div><div><br><div><br></div><div><a href=3D"http:=
//hal.inria.fr/docs/00/66/16/29/PDF/RR-7864.pdf">http://hal.inria.fr/docs/0=
0/66/16/29/PDF/RR-7864.pdf</a><br><br><div class=3D"gmail_quote">On Fri, Ja=
n 20, 2012 at 4:05 AM, Mukul Goyal <span dir=3D"ltr">&lt;<a href=3D"mailto:=
mukul@uwm.edu">mukul@uwm.edu</a>&gt;</span> wrote:<br>

<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex"><div class=3D"HOEnZb"><div class=3D"h5">Here=
 is a summary of the changes in p2p-rpl-06 over p2p-rpl-05:<br>
<br>
1. Introduced a new Mode of Operation - P2P Route Discovery Mode. DIOs in P=
2P-RPL MUST use this MOP. This ensures that RPL routers that do not underst=
and P2P-RPL may only join as leaf nodes in the temporary DAGs used in P2P-R=
PL and do not inadvertently participate in a P2P-RPL route discovery.<br>


<br>
2. Specified a default DODAG Configuration Option that comes in effect if t=
he P2P mode DIO does not include an explicit one.<br>
<br>
3. Replaced &quot;Rem&quot; field in P2P Route Discovery Option with &quot;=
MaxRank/NH&quot; field:<br>
<br>
a) Rem field was used to indicate the number of empty slots in the Address =
vector. We thought that it would be possible for a node to simply modify a =
received DIO and transmit it. But, later on, we realized that since a DIO t=
ransmission is triggered by the Trickle timer firing, a router would have t=
o always create a new DIO packet. Thus, there was no point any more in carr=
ying empty slots in the Address vector. So, we replaced &quot;Rem&quot; fie=
ld with a &quot;MaxRank/NH&quot; field.<br>


<br>
b) The &quot;MaxRank/NH&quot; field serves as the MaxRank when the P2P Rout=
e Discovery Option is carried inside a DIO. This field can be used to speci=
fy a constraint on the max rank that a router can have in the temporary DAG=
 being used for a P2P-RPL route discovery. This field provides a way to spe=
cify a constraint without including a Metric Container. This field is parti=
cularly useful if OF0 (which does not use RPL routing metrics) is the objec=
tive function in use. Now, a P2P mode DIO, using OF0 as the OF, can avoid i=
ncluding a Metric Container (and thus save some bytes).<br>


<br>
c) The &quot;MaxRank/NH&quot; field serves as the &quot;NH(Next Hop)&quot; =
field when the P2P Route Discovery Option is carried inside a DRO. This fie=
ld indicates the index of the next hop address inside the Address vector.<b=
r>


<br>
4. Clarified that all routers participating in a P2P-RPL route discovery, i=
ncluding the origin and the target MUST join the temporary DAG being create=
d for the purpose.<br>
<br>
5. Changes to how &quot;Consistent/Inconsistent&quot; events are defined fo=
r Trickle operation in P2P-RPL:<br>
a) New rule: The receipt of a P2P mode DIO from a parent in the temporary D=
AG<br>
 =A0 =A0 =A0is considered neither &quot;consistent&quot; nor &quot;inconsis=
tent&quot; if it does<br>
 =A0 =A0 =A0not allow the router to advertise a better route than before.<b=
r>
In the absence of this rule, a router was suppressing its DIO because it re=
ceived a &quot;consistent&quot; DIO from its parent. (The redundancy consta=
nt was 1). This was hampering the route discovery.<br>
<br>
b) Clarified that the Imin parameter SHOULD be set taking in account the co=
nnectivity within the network. A small Imin value in a highly connected LLN=
 could cause a DIO storm. This is because the first receipt of a DIO about =
a temporary DAG is treated as an inconsistent event and would cause the Tri=
ckle timer to reset to Imin.<br>


<br>
c) Clarified that Imax should be set to a large value so that it is not a f=
actor in the Trickle operation during the limited life of the temporary DAG=
.<br>
<br>
d) Clarified that redundancy constant should be set to a value larger than =
1 if packet loss rates are high. For moderate/low packet loss rates, the re=
dundancy constant should be 1 to avoid unnecessary DIO generation.<br>


<br>
6. Specified that a received P2P mode DIO must be dropped if the advertized=
 rank is INFINITE_RANK (so any DIO advertized by a non-P2P-RPL router, that=
 joined the temporary DAG as a leaf, would be dropped) or more than the Max=
Rank.<br>


<br>
7. Added a section on interoperability with core RPL.<br>
<br>
Thanks<br>
Mukul<br>
_______________________________________________<br>
Roll mailing list<br>
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</div></div></blockquote></div><br></div></div>

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--20cf30334c930bc31604b6f37674
Content-Type: text/plain; charset=ISO-8859-1

Dear all,
indeed, please do send us your comments/nits at this point (i.e. do not
wait for any upcoming last call ;).
Cheers,
Emmanuel

On Thu, Jan 19, 2012 at 6:08 PM, Mukul Goyal <mukul@uwm.edu> wrote:

> Hi all
>
> This version of the draft is the result of extensive testing with two
> P2P-RPL implementations (by INRIA and Sigma Design) and a thorough review
> by the authors and implementors. I will be posting the main differences
> over the previous version shortly.
>
> We (the authors) think that we are done with the draft and it is ready for
> the last call.
>
> Kindly review this draft and let me know if you would like to see any
> changes before the last call begins. I will be requesting a last call on
> this draft in a week or so. Hopefully, this will give enough time for
> people to send comments.
>
> Thanks
> Mukul
>
> ----- Forwarded Message -----
> From: internet-drafts@ietf.org
> To: i-d-announce@ietf.org
> Cc: roll@ietf.org
> Sent: Thursday, January 19, 2012 9:50:21 AM
> Subject: [Roll] I-D Action: draft-ietf-roll-p2p-rpl-06.txt
>
>
> A New Internet-Draft is available from the on-line Internet-Drafts
> directories. This draft is a work item of the Routing Over Low power and
> Lossy networks Working Group of the IETF.
>
>        Title           : Reactive Discovery of Point-to-Point Routes in
> Low Power and Lossy Networks
>        Author(s)       : Mukul Goyal
>                          Emmanuel Baccelli
>                          Matthias Philipp
>                          Anders Brandt
>                          Jerald Martocci
>        Filename        : draft-ietf-roll-p2p-rpl-06.txt
>        Pages           : 27
>        Date            : 2012-01-19
>
>   This document specifies a point-to-point route discovery mechanism,
>   complementary to the RPL core functionality.  This mechanism allows
>   an IPv6 router to discover and establish, on demand, a route to
>   another IPv6 router in the LLN such that the discovered route meets
>   specified metrics constraints, without necessarily going along the
>   DAG links established by core RPL.
>
>
> A URL for this Internet-Draft is:
> http://www.ietf.org/internet-drafts/draft-ietf-roll-p2p-rpl-06.txt
>
> Internet-Drafts are also available by anonymous FTP at:
> ftp://ftp.ietf.org/internet-drafts/
>
> This Internet-Draft can be retrieved at:
> ftp://ftp.ietf.org/internet-drafts/draft-ietf-roll-p2p-rpl-06.txt
>
> _______________________________________________
> Roll mailing list
> Roll@ietf.org
> https://www.ietf.org/mailman/listinfo/roll
> _______________________________________________
> Roll mailing list
> Roll@ietf.org
> https://www.ietf.org/mailman/listinfo/roll
>

--20cf30334c930bc31604b6f37674
Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable

Dear all,<div>indeed, please do send us your comments/nits at this point (i=
.e. do not wait for any upcoming last call ;).</div><div>Cheers,</div><div>=
Emmanuel<br><br><div class=3D"gmail_quote">On Thu, Jan 19, 2012 at 6:08 PM,=
 Mukul Goyal <span dir=3D"ltr">&lt;<a href=3D"mailto:mukul@uwm.edu">mukul@u=
wm.edu</a>&gt;</span> wrote:<br>

<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex"><div class=3D"im HOEnZb">Hi all<br>
<br>
This version of the draft is the result of extensive testing with two P2P-R=
PL implementations (by INRIA and Sigma Design) and a thorough review by the=
 authors and implementors. I will be posting the main differences over the =
previous version shortly.<br>


<br>
We (the authors) think that we are done with the draft and it is ready for =
the last call.<br>
<br>
Kindly review this draft and let me know if you would like to see any chang=
es before the last call begins. I will be requesting a last call on this dr=
aft in a week or so. Hopefully, this will give enough time for people to se=
nd comments.<br>


<br>
Thanks<br>
Mukul<br>
<br>
----- Forwarded Message -----<br>
From: <a href=3D"mailto:internet-drafts@ietf.org">internet-drafts@ietf.org<=
/a><br>
To: <a href=3D"mailto:i-d-announce@ietf.org">i-d-announce@ietf.org</a><br>
Cc: <a href=3D"mailto:roll@ietf.org">roll@ietf.org</a><br>
Sent: Thursday, January 19, 2012 9:50:21 AM<br>
Subject: [Roll] I-D Action: draft-ietf-roll-p2p-rpl-06.txt<br>
<br>
<br>
</div><div class=3D"HOEnZb"><div class=3D"h5">A New Internet-Draft is avail=
able from the on-line Internet-Drafts directories. This draft is a work ite=
m of the Routing Over Low power and Lossy networks Working Group of the IET=
F.<br>


<br>
 =A0 =A0 =A0 =A0Title =A0 =A0 =A0 =A0 =A0 : Reactive Discovery of Point-to-=
Point Routes in Low Power and Lossy Networks<br>
 =A0 =A0 =A0 =A0Author(s) =A0 =A0 =A0 : Mukul Goyal<br>
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0Emmanuel Baccelli<br>
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0Matthias Philipp<br>
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0Anders Brandt<br>
 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0Jerald Martocci<br>
 =A0 =A0 =A0 =A0Filename =A0 =A0 =A0 =A0: draft-ietf-roll-p2p-rpl-06.txt<br=
>
 =A0 =A0 =A0 =A0Pages =A0 =A0 =A0 =A0 =A0 : 27<br>
 =A0 =A0 =A0 =A0Date =A0 =A0 =A0 =A0 =A0 =A0: 2012-01-19<br>
<br>
 =A0 This document specifies a point-to-point route discovery mechanism,<br=
>
 =A0 complementary to the RPL core functionality. =A0This mechanism allows<=
br>
 =A0 an IPv6 router to discover and establish, on demand, a route to<br>
 =A0 another IPv6 router in the LLN such that the discovered route meets<br=
>
 =A0 specified metrics constraints, without necessarily going along the<br>
 =A0 DAG links established by core RPL.<br>
<br>
<br>
A URL for this Internet-Draft is:<br>
<a href=3D"http://www.ietf.org/internet-drafts/draft-ietf-roll-p2p-rpl-06.t=
xt" target=3D"_blank">http://www.ietf.org/internet-drafts/draft-ietf-roll-p=
2p-rpl-06.txt</a><br>
<br>
Internet-Drafts are also available by anonymous FTP at:<br>
<a href=3D"ftp://ftp.ietf.org/internet-drafts/" target=3D"_blank">ftp://ftp=
.ietf.org/internet-drafts/</a><br>
<br>
This Internet-Draft can be retrieved at:<br>
<a href=3D"ftp://ftp.ietf.org/internet-drafts/draft-ietf-roll-p2p-rpl-06.tx=
t" target=3D"_blank">ftp://ftp.ietf.org/internet-drafts/draft-ietf-roll-p2p=
-rpl-06.txt</a><br>
<br>
_______________________________________________<br>
Roll mailing list<br>
<a href=3D"mailto:Roll@ietf.org">Roll@ietf.org</a><br>
<a href=3D"https://www.ietf.org/mailman/listinfo/roll" target=3D"_blank">ht=
tps://www.ietf.org/mailman/listinfo/roll</a><br>
_______________________________________________<br>
Roll mailing list<br>
<a href=3D"mailto:Roll@ietf.org">Roll@ietf.org</a><br>
<a href=3D"https://www.ietf.org/mailman/listinfo/roll" target=3D"_blank">ht=
tps://www.ietf.org/mailman/listinfo/roll</a><br>
</div></div></blockquote></div><br></div>

--20cf30334c930bc31604b6f37674--

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------------------------------------------------------------------------
-       Our apologies if you receive multiple copies of this CFP       -
------------------------------------------------------------------------

                 ***** PAPER SUBMISSION DEADLINE *****
                    FEBRUARY 17, 2012 (11:59pm EST)

------------------------------------------------------------------------

                            CALL FOR PAPERS

                             IoT-SoS 2012
                      First IEEE Workshop on the
             Internet of Things: Smart Objects and Services

                  http://www.ing.unipi.it/iot-sos2012

                   co-located with IEEE WoWMoM 2012
               sponsored by IEEE, IEEE Computer Society

                            June 25, 2012
                       San Francisco, CA, USA

------------------------------------------------------------------------

The Internet of Things (IoT) is a novel paradigm which is shaping the 
evolution of the future Internet. According to the vision underlying the 
IoT, the next step in increasing the ubiquity of the Internet, after 
connecting people anytime and everywhere, is to connect inanimate 
objects. By providing objects with embedded communication capabilities 
and a common addressing scheme, a highly distributed and ubiquitous 
network of seamlessly connected heterogeneous devices is formed, which 
can be fully integrated into the current Internet and mobile networks, 
thus allowing for the development of new intelligent services available 
anytime, anywhere, by anyone and anything. Such a vision is also 
becoming known under the name of Machine-to-Machine (M2M), where the 
absence of human interaction in the system dynamics is further stressed.

Many applications with high social and business impact fall under the 
IoT/M2M umbrella, including personal healthcare, smart grid, 
surveillance, home automation, intelligent transportation, while it is 
expected that new ones will emerge once the enabling technologies reach 
a stable state. At the moment, two of the most important challenges are: 
i) the definition of architectures, protocols and algorithms for an 
efficient interconnection of smart objects, both between themselves and 
with the (Future) Internet; and ii) the creation of value-added 
services, esp. open and interoperable, enabled by the interconnection of 
things / machines / smart objects, in such a way that they can be 
integrated with current and new business and development processes.

The aim of this workshop is to bring together practitioners and 
researchers from both academia and industry in order to have a forum for 
discussion and technical presentations on the recent advances in theory, 
application and implementation of the Internet of Things concept: 
technologies, protocols, algorithms, and services.

Topics of interest include, but are not limited to:

- System architectures for the IoT/M2M
- Communication protocols for the IoT/M2M
- Service platforms for the IoT/M2M
- Enabling technologies and standards for the IoT/M2M
- Mobility management
- Context awareness
- Sustainable design
- Location-based services and geographic information systems
- Experimental prototypes and large-scale testbed infrastructures
- Performance evaluation of IoT/M2M solutions
- Convergence with the Internet of Services
- Applications, including: eHealth/mHealth; Smart Grid/Smart Metering; 
  connected consumer; fleet management; surveillance; Intelligent 
  Transportation Systems; Smart House/Neighborhood/City
- Business development and processes
- Industrial use cases showing gaps to be filled by future research

PAPER SUBMISSION AND PUBLICATION
All submissions must describe original research, not published or 
currently under review for another workshop, conference, or journal. 
Papers must be submitted electronically to EDAS by February 17, 2012, 
11:59pm EST. You can find detailed submission instructions at 
http://www.ing.unipi.it/iot-sos2012/submission.shtml. Submission implies 
the willingness of at least one author to attend the workshop and 
present the paper. Accepted papers will be included in the main 
proceedings of IEEE WoWMoM 2012 and published by IEEE.

IMPORTANT DATES
Manuscripts Due:           February 17, 2012.
Acceptance Notification:      April  6, 2012.
Camera-ready Submission: 2nd half April 2012.

WORKSHOP CO-CHAIRS
Jaudelice Cavalcante de Oliveira, Drexel University, PA, USA.
Claudio Cicconetti, INTECS, Italy.
Xiaohua Jia, City University of Hong Kong, Hong Kong.
Enzo Mingozzi, University of Pisa, Italy.

TECHNICAL PROGRAM COMMITTEE (TO BE COMPLETED)
Baris Atakan, Georgia Institute of Technology, USA.
Biao Chen, University of Macau, Macao.
Zixue Cheng, University of Aizu, Japan.
Huang Chuanhe, Whuhan University, P.R. China.
Thomas Clausen, Ecole Polytechnique, France.
Gianni Di Caro, IDSIA, Switzerland.
Hongwei Du, Harbin Institute of Technology, P.R. China.
Andrzej Duda, Grenoble Institute of Technology, France.
Omprakash Gnawali, University of Houston, USA.
Mukul Goyal, University of Wisconsin - Milwaukee, USA.
Burhan Gulbahar, Koc University, Turkey.
Yuan Guo, Wilson, Ham & Holman, USA.
Stephan Haller, SAP (Switzerland) Inc., Switzerland.
Antonio Iera, University Mediterranea of Reggio Calabria, Italy.
Sofoklis Kyriazakos, Aalborg Universitet, Denmark.
Antonis Litke, Converge, Greece.
Hai Liu, Hong Kong Baptist University, Hong Kong.
Alessandro Mamelli, Hewlett-Packard, Italy.
Belen Martinez, Tecnalia, Spain.
Tommaso Melodia, SUNY at Buffalo, USA.
Francisco Javier Nieto De-Santos, ATOS, Spain.
Dario Pompili, Rutgers University, USA.
Kay Romer, University of Lubeck, Germany.
Michele Rossi, University of Padova, Italy.
Paul Russell, InterDigital, USA.
Enrico Scarrone, Telecom Italia LAB, Italy.
Jean-Philippe Vasseur, Cisco Systems, USA.
Serdar Vural, University of Surrey, UK.
Dexiang Wang, University of Florida, USA.
Yan Zhang, Simula Research Laboratory and University of Oslo, Norway.



From melvin@amatiscontrols.com  Wed Jan 25 11:09:35 2012
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I have question regarding the RPL extensions (*draft-ietf-6man-rpl-option-06
*) and trickle multicast (*draft-ietf-roll-trickle-mcast-00*)

Both of the documents listed above expects data packets to have very
different information in the IPv6 Hop-by-hop option header . The
draft-ietf-6man-rpl-option-06* *expects packet direction, RPLInstanceID,
etc, whereas draft-ietf-roll-trickle-mcast-00 expects SeedID, Sequence,
etc.

Are the expectations for a (storing-mode with multicast support RPL
implementation) multicast data packet  to have two (2) hop-by-hop headers?
If the answer to the previous question is "yes" wouldn't that conflict with
RFC-2640 Section 4.1 "Each extension header should occur at most once,
except for the    Destination Options header which should occur at most
twice"?
If the answer is "no" what are the expectations on what to included in the
data messages?


Thanks in advance
Melvin R Aguirre

--f46d04428e5c7cba4c04b75f000b
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I have question regarding the RPL extensions (<b>draft-ietf-6man-rpl-option=
-06</b>) and trickle multicast (<b>draft-ietf-roll-trickle-mcast-00</b>)<br=
><br>Both of the documents listed above expects data packets to have very d=
ifferent information in the IPv6 Hop-by-hop option header . The draft-ietf-=
6man-rpl-option-06<b> </b>expects packet direction, RPLInstanceID, etc, whe=
reas draft-ietf-roll-trickle-mcast-00 expects SeedID, Sequence, etc. <br>
<br>Are the expectations for a (storing-mode with multicast support RPL imp=
lementation) multicast data packet=A0 to have two (2) hop-by-hop headers? <=
br>If the answer to the previous question is &quot;yes&quot; wouldn&#39;t t=
hat conflict with RFC-2640 Section 4.1 &quot;Each extension header should o=
ccur at most once, except for the=A0=A0=A0 Destination Options header which=
 should occur at most twice&quot;?<br>
If the answer is &quot;no&quot; what are the expectations on what to includ=
ed in the data messages?<br><br><br>Thanks in advance<br>Melvin R Aguirre<b=
r><br><br><br><br><br><br><pre><span class=3D"h1"><h1><br></h1></span></pre=
>

--f46d04428e5c7cba4c04b75f000b--

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Je serai absent(e) du  24/01/2012 au 30/01/2012.

I will be out of office until january 30th. I will answer your email as soon as possible.
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<p><font size="2" face="sans-serif">Je serai absent(e) du  24/01/2012 au 30/01/2012.<br>
</font><font size="2" face="sans-serif"><br>
</font><font size="2" face="sans-serif">I will be out of office until january 30th. I will answer your email as soon as possible.</font></body></html>
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From esko.dijk@philips.com  Thu Jan 26 02:21:49 2012
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From: "Dijk, Esko" <esko.dijk@philips.com>
To: Melvin A <melvin@amatiscontrols.com>
Thread-Topic: [Roll] RPL and extension headers with trickle multicast
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Date: Thu, 26 Jan 2012 10:22:57 +0000
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Subject: Re: [Roll] RPL and extension headers with trickle multicast
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Hello Melvin,

I would assume that in your described case the two options are present in t=
he same IPv6 Hop-by-hop Options header:

1.       RPL Option

2.       Trickle Multicast Option

You describe a router implementation that basically includes two possible w=
ays to route multicast packets: RPL and Trickle multicast.  I assume a rout=
er may also select only one of these two mechanisms for routing a multicast=
 packet e.g. depending on destination?

regards,
Esko


Esko Dijk

Philips Corporate Technologies, Research
High Tech Campus 34, Eindhoven, The Netherlands
esko.dijk@philips.com

From: roll-bounces@ietf.org [mailto:roll-bounces@ietf.org] On Behalf Of Mel=
vin A
Sent: Wednesday 25 January 2012 20:09
To: roll@ietf.org
Subject: [Roll] RPL and extension headers with trickle multicast

I have question regarding the RPL extensions (draft-ietf-6man-rpl-option-06=
) and trickle multicast (draft-ietf-roll-trickle-mcast-00)

Both of the documents listed above expects data packets to have very differ=
ent information in the IPv6 Hop-by-hop option header . The draft-ietf-6man-=
rpl-option-06 expects packet direction, RPLInstanceID, etc, whereas draft-i=
etf-roll-trickle-mcast-00 expects SeedID, Sequence, etc.

Are the expectations for a (storing-mode with multicast support RPL impleme=
ntation) multicast data packet  to have two (2) hop-by-hop headers?
If the answer to the previous question is "yes" wouldn't that conflict with=
 RFC-2640 Section 4.1 "Each extension header should occur at most once, exc=
ept for the    Destination Options header which should occur at most twice"=
?
If the answer is "no" what are the expectations on what to included in the =
data messages?


Thanks in advance
Melvin R Aguirre







________________________________
The information contained in this message may be confidential and legally p=
rotected under applicable law. The message is intended solely for the addre=
ssee(s). If you are not the intended recipient, you are hereby notified tha=
t any use, forwarding, dissemination, or reproduction of this message is st=
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<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt; font-family:&quot;C=
alibri&quot;,&quot;sans-serif&quot;; color:#1F497D">Hello Melvin,</span></p=
>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt; font-family:&quot;C=
alibri&quot;,&quot;sans-serif&quot;; color:#1F497D">&nbsp;</span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt; font-family:&quot;C=
alibri&quot;,&quot;sans-serif&quot;; color:#1F497D">I would assume that in =
your described case the two options are present in the same IPv6 Hop-by-hop=
 Options header:</span></p>
<p class=3D"MsoListParagraph" style=3D"text-indent:-18.0pt"><span style=3D"=
font-size:11.0pt; font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;; c=
olor:#1F497D"><span style=3D"">1.<span style=3D"font:7.0pt &quot;Times New =
Roman&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span></span><span style=3D"font-size:11.0pt; font-family:&quot;Cal=
ibri&quot;,&quot;sans-serif&quot;; color:#1F497D">RPL Option</span></p>
<p class=3D"MsoListParagraph" style=3D"text-indent:-18.0pt"><span style=3D"=
font-size:11.0pt; font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;; c=
olor:#1F497D"><span style=3D"">2.<span style=3D"font:7.0pt &quot;Times New =
Roman&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span></span><span style=3D"font-size:11.0pt; font-family:&quot;Cal=
ibri&quot;,&quot;sans-serif&quot;; color:#1F497D">Trickle Multicast Option<=
/span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt; font-family:&quot;C=
alibri&quot;,&quot;sans-serif&quot;; color:#1F497D">&nbsp;</span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt; font-family:&quot;C=
alibri&quot;,&quot;sans-serif&quot;; color:#1F497D">You describe a router i=
mplementation that basically includes two possible ways to route multicast =
packets: RPL and Trickle multicast.&nbsp; I assume a router may
 also select only one of these two mechanisms for routing a multicast packe=
t e.g. depending on destination? &nbsp;</span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt; font-family:&quot;C=
alibri&quot;,&quot;sans-serif&quot;; color:#1F497D">&nbsp;</span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt; font-family:&quot;C=
alibri&quot;,&quot;sans-serif&quot;; color:#1F497D">regards,</span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt; font-family:&quot;C=
alibri&quot;,&quot;sans-serif&quot;; color:#1F497D">Esko</span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt; font-family:&quot;C=
alibri&quot;,&quot;sans-serif&quot;; color:#1F497D">&nbsp;</span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt; font-family:&quot;C=
alibri&quot;,&quot;sans-serif&quot;; color:#1F497D">&nbsp;</span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt; font-family:Consola=
s; color:#1F497D">Esko Dijk</span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt; font-family:Consola=
s; color:#1F497D">&nbsp;</span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt; font-family:Consola=
s; color:#1F497D">Philips Corporate Technologies, Research</span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt; font-family:Consola=
s; color:#1F497D">High Tech Campus 34, Eindhoven, The Netherlands</span></p=
>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt; font-family:Consola=
s; color:#1F497D">esko.dijk@philips.com</span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt; font-family:&quot;C=
alibri&quot;,&quot;sans-serif&quot;; color:#1F497D">&nbsp;</span></p>
<div style=3D"border:none; border-top:solid #B5C4DF 1.0pt; padding:3.0pt 0c=
m 0cm 0cm">
<p class=3D"MsoNormal"><b><span style=3D"font-size:10.0pt; font-family:&quo=
t;Tahoma&quot;,&quot;sans-serif&quot;">From:</span></b><span style=3D"font-=
size:10.0pt; font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;"> roll-b=
ounces@ietf.org [mailto:roll-bounces@ietf.org]
<b>On Behalf Of </b>Melvin A<br>
<b>Sent:</b> Wednesday 25 January 2012 20:09<br>
<b>To:</b> roll@ietf.org<br>
<b>Subject:</b> [Roll] RPL and extension headers with trickle multicast</sp=
an></p>
</div>
<p class=3D"MsoNormal">&nbsp;</p>
<p class=3D"MsoNormal" style=3D"margin-bottom:12.0pt">I have question regar=
ding the RPL extensions (<b>draft-ietf-6man-rpl-option-06</b>) and trickle =
multicast (<b>draft-ietf-roll-trickle-mcast-00</b>)<br>
<br>
Both of the documents listed above expects data packets to have very differ=
ent information in the IPv6 Hop-by-hop option header . The draft-ietf-6man-=
rpl-option-06<b>
</b>expects packet direction, RPLInstanceID, etc, whereas draft-ietf-roll-t=
rickle-mcast-00 expects SeedID, Sequence, etc.
<br>
<br>
Are the expectations for a (storing-mode with multicast support RPL impleme=
ntation) multicast data packet&nbsp; to have two (2) hop-by-hop headers?
<br>
If the answer to the previous question is &quot;yes&quot; wouldn't that con=
flict with RFC-2640 Section 4.1 &quot;Each extension header should occur at=
 most once, except for the&nbsp;&nbsp;&nbsp; Destination Options header whi=
ch should occur at most twice&quot;?<br>
If the answer is &quot;no&quot; what are the expectations on what to includ=
ed in the data messages?<br>
<br>
<br>
Thanks in advance<br>
Melvin R Aguirre<br>
<br>
<br>
<br>
<br>
<br>
</p>
<h1><span style=3D"font-family:&quot;Courier New&quot;">&nbsp;</span></h1>
</div>
<br>
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intended recipient, you are hereby notified
 that any use, forwarding, dissemination, or reproduction of this message i=
s strictly prohibited and may be unlawful. If you are not the intended reci=
pient, please contact the sender by return e-mail and destroy all copies of=
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Date: Sat, 28 Jan 2012 16:33:15 -0800
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Subject: [Roll] I-D Action: draft-ietf-roll-p2p-rpl-07.txt
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A New Internet-Draft is available from the on-line Internet-Drafts director=
ies. This draft is a work item of the Routing Over Low power and Lossy netw=
orks Working Group of the IETF.

	Title           : Reactive Discovery of Point-to-Point Routes in Low Power=
 and Lossy Networks
	Author(s)       : Mukul Goyal
                          Emmanuel Baccelli
                          Matthias Philipp
                          Anders Brandt
                          Jerald Martocci
	Filename        : draft-ietf-roll-p2p-rpl-07.txt
	Pages           : 27
	Date            : 2012-01-28

   This document specifies a point-to-point route discovery mechanism,
   complementary to the RPL core functionality.  This mechanism allows
   an IPv6 router to discover and establish, on demand, a route to
   another IPv6 router in the LLN such that the discovered route meets
   specified metrics constraints, without necessarily going along the
   DAG links established by core RPL.


A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-ietf-roll-p2p-rpl-07.txt

Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/

This Internet-Draft can be retrieved at:
ftp://ftp.ietf.org/internet-drafts/draft-ietf-roll-p2p-rpl-07.txt


From prvs=3681a06aa=mukul@uwm.edu  Sat Jan 28 16:39:13 2012
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From: Mukul Goyal <mukul@uwm.edu>
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Subject: [Roll] Fwd: New Version Notification for draft-ietf-roll-p2p-rpl-07.txt
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Hi all

A very minor update over p2p-rpl-06. 

The DIOIntervalMin value in the default configuration option for a P2P mode DIO is specified as 6, which translates to Imin value of 64ms for Trickle operation. We somehow forgot to specify this in p2p-rpl-06.

Thanks
Mukul

----- Forwarded Message -----
From: internet-drafts@ietf.org
To: mukul@uwm.edu
Cc: "jerald p martocci" <jerald.p.martocci@jci.com>, "emmanuel baccelli" <emmanuel.baccelli@inria.fr>, mukul@uwm.edu, "matthias philipp" <matthias.philipp@inria.fr>, abr@sdesigns.dk
Sent: Saturday, January 28, 2012 6:33:15 PM
Subject: New Version Notification for draft-ietf-roll-p2p-rpl-07.txt

A new version of I-D, draft-ietf-roll-p2p-rpl-07.txt has been successfully submitted by Mukul Goyal and posted to the IETF repository.

Filename:	 draft-ietf-roll-p2p-rpl
Revision:	 07
Title:		 Reactive Discovery of Point-to-Point Routes in Low Power and Lossy Networks
Creation date:	 2012-01-29
WG ID:		 roll
Number of pages: 27

Abstract:
   This document specifies a point-to-point route discovery mechanism,
   complementary to the RPL core functionality.  This mechanism allows
   an IPv6 router to discover and establish, on demand, a route to
   another IPv6 router in the LLN such that the discovered route meets
   specified metrics constraints, without necessarily going along the
   DAG links established by core RPL.

                                                                                  


The IETF Secretariat

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From: JP Vasseur <jpv@cisco.com>
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Subject: [Roll] IETF-83 - Slot ?
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Dear all,

As a reminder, here are the "important" dates:

IETF 83: March 25-30, 2012, Paris, France
Download .ICS file of important dates for IETF 83
Subscribe to important dates calendar for IETF 83: =
http://www.ietf.org/meeting/83/IETF-83-important-dates.ics

2011-12-19 (Week of): IETF Online Registration opens.
2011-12-19 (Monday): Working Group and BOF scheduling begins. To request =
a Working Group session, use the IETF Meeting Session Request Tool.
2012-01-30 (Monday): Cutoff date for requests to schedule Working Group =
meetings at 17:00 PT (UTC -8). To request a Working Group session, use =
the IETF Meeting Session Request Tool.
2012-02-13 (Monday): Cutoff date for BOF proposal requests to Area =
Directors at 17:00 PT (UTC -8). To request a BOF, please see =
instructions on Requesting a BOF.
2012-02-16 (Thursday): Cutoff date for Area Directors to approve BOFs at =
17:00 PT (UTC -8).
2012-02-23 (Thursday): Preliminary agenda published for comment.
2012-02-27 (Monday): Cutoff date for requests to reschedule Working =
Group and BOF meetings 17:00 PT (UTC -8).
2012-02-27 (Monday): Working Group Chair approval for initial document =
(Version -00) submissions appreciated by 17:00 PT (UTC -8).
2012-03-02 (Friday): Final agenda to be published.
2012-03-05 (Monday): Internet Draft Cut-off for initial document (-00) =
submission by 17:00 PT (UTC -8), upload using IETF ID Submission Tool.
2012-03-12 (Monday): Internet Draft final submission cut-off by 17:00 PT =
(UTC -7), upload using IETF ID Submission Tool.
2012-03-14 (Wednesday): Draft Working Group agendas due by 17:00 PT (UTC =
-7), upload using IETF Meeting Materials Management Tool.
2012-03-16 (Friday): Early Bird registration and payment cut-off at =
17:00 PT (UTC -7).
2012-03-19 (Monday): Revised Working Group agendas due by 17:00 PT (UTC =
-7), upload using IETF Meeting Materials Management Tool.
2012-03-19 (Monday): Registration cancellation cut-off at 17:00 PT (UTC =
-7).
2012-03-23 (Friday): Final Pre-Registration and Pre-Payment cut-off at =
17:00 local meeting time.
2012-03-25 - 2012-03-30: 83rd IETF Meeting in Paris, France.
2012-04-27 (Friday): Proceedings submission cutoff date by 17:00 PT (UTC =
-7), upload using IETF Meeting Materials Management Tool.
2012-05-16 (Wednesday): Proceedings submission corrections cutoff date =
by 17:00 PT (UTC -7), upload usingIETF Meeting Materials Management =
Tool.


Please tell us before March 7 if you would like to have a "slot" for the =
ROLL WG meeting at IETF-83 ?

Thanks.

JP.=

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<html><head></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Dear =
all,<div><br></div><div>As a reminder, here are the "important" =
dates:</div><div><br></div><div><span class=3D"Apple-style-span" =
style=3D"font-family: Verdana, Arial, Helvetica, sans-serif; font-size: =
13px; "><h3 style=3D"margin-top: 0px; margin-bottom: 0px; "><strong>IETF =
83:&nbsp;</strong>March 25-30, 2012, Paris, =
France</h3><p>Download&nbsp;<strong><a =
href=3D"http://www.ietf.org/meeting/83/IETF-83-important-dates.ics">.ICS</=
a></strong>&nbsp;file of important dates for IETF 83<br>Subscribe to =
important dates calendar for IETF 83: <a =
href=3D"http://www.ietf.org/meeting/83/IETF-83-important-dates.ics">http:/=
/www.ietf.org/meeting/83/IETF-83-important-dates.ics</a></p><ul =
class=3D"style4" style=3D"font-family: Verdana, Arial, Helvetica, =
sans-serif; margin-top: 0px; margin-bottom: 0px; =
"><li><strong>2011-12-19 (Week of):</strong>&nbsp;IETF Online =
Registration opens.</li><li><strong>2011-12-19 =
(Monday):</strong>&nbsp;Working Group and BOF scheduling begins. To =
request a Working Group session, use the&nbsp;<a =
href=3D"https://datatracker.ietf.org/cgi-bin/wg/wg_session_requester.cgi">=
IETF Meeting Session Request Tool</a>.</li><li><strong>2012-01-30 =
(Monday):</strong>&nbsp;Cutoff date for requests to schedule Working =
Group meetings at 17:00 PT (UTC -8). To request a Working Group session, =
use the&nbsp;<a =
href=3D"https://datatracker.ietf.org/cgi-bin/wg/wg_session_requester.cgi">=
IETF Meeting Session Request Tool</a>.</li><li><strong>2012-02-13 =
(Monday):</strong>&nbsp;Cutoff date for BOF proposal requests to Area =
Directors at 17:00 PT (UTC -8). To request a BOF, please see =
instructions on&nbsp;<a =
href=3D"http://www.ietf.org/iesg/bof-procedures.html">Requesting a =
BOF</a>.</li><li><strong>2012-02-16 (Thursday):</strong>&nbsp;Cutoff =
date for Area Directors to approve BOFs at 17:00 PT (UTC =
-8).</li><li><strong>2012-02-23 (Thursday):</strong>&nbsp;Preliminary =
agenda published for comment.</li><li><strong>2012-02-27 =
(Monday):</strong>&nbsp;Cutoff date for requests to reschedule Working =
Group and BOF meetings 17:00 PT (UTC -8).</li><li><strong>2012-02-27 =
(Monday):</strong>&nbsp;Working Group Chair approval for initial =
document (Version -00) submissions appreciated by 17:00 PT (UTC =
-8).</li><li><strong>2012-03-02 (Friday):</strong>&nbsp;Final agenda to =
be published.</li><li><strong>2012-03-05 =
(Monday):</strong>&nbsp;Internet Draft Cut-off for initial document =
(-00) submission by 17:00 PT (UTC -8), upload using&nbsp;<a =
href=3D"https://datatracker.ietf.org/submit/">IETF ID Submission =
Tool</a>.</li><li><strong>2012-03-12 (Monday):</strong>&nbsp;Internet =
Draft final submission cut-off by 17:00 PT (UTC -7), upload =
using&nbsp;<a href=3D"https://datatracker.ietf.org/submit/">IETF ID =
Submission Tool</a>.</li><li><strong>2012-03-14 =
(Wednesday):</strong>&nbsp;Draft Working Group agendas due by 17:00 PT =
(UTC -7), upload using&nbsp;<a =
href=3D"https://datatracker.ietf.org/cgi-bin/wg/wg_proceedings.cgi">IETF =
Meeting Materials Management Tool</a>.</li><li><strong>2012-03-16 =
(Friday):</strong>&nbsp;Early Bird registration and payment cut-off at =
17:00 PT (UTC -7).</li><li><strong>2012-03-19 =
(Monday):</strong>&nbsp;Revised Working Group agendas due by 17:00 PT =
(UTC -7), upload using&nbsp;<a =
href=3D"https://datatracker.ietf.org/cgi-bin/wg/wg_proceedings.cgi">IETF =
Meeting Materials Management Tool</a>.</li><li><strong>2012-03-19 =
(Monday):</strong>&nbsp;Registration cancellation cut-off at 17:00 PT =
(UTC -7).</li><li><strong>2012-03-23 (Friday):</strong>&nbsp;Final =
Pre-Registration and Pre-Payment cut-off at 17:00 local meeting =
time.</li><li><strong>2012-03-25 - 2012-03-30: 83rd IETF Meeting in =
Paris, France.</strong></li><li><strong>2012-04-27 =
(Friday):</strong>&nbsp;Proceedings submission cutoff date by 17:00 PT =
(UTC -7), upload using&nbsp;<a =
href=3D"https://datatracker.ietf.org/cgi-bin/wg/wg_proceedings.cgi">IETF =
Meeting Materials Management Tool</a>.</li><li><strong>2012-05-16 =
(Wednesday):</strong>&nbsp;Proceedings submission corrections cutoff =
date by 17:00 PT (UTC -7), upload using<a =
href=3D"https://datatracker.ietf.org/cgi-bin/wg/wg_proceedings.cgi">IETF =
Meeting Materials Management =
Tool</a>.</li></ul></span><div><br></div><div><br></div><div><b><i><font =
class=3D"Apple-style-span" color=3D"#b61810">Please tell us before March =
7 if you would like to have a "slot" for the ROLL WG meeting at IETF-83 =
?</font></i></b></div><div><br></div><div>Thanks.</div><div><br></div><div=
>JP.</div>
</div></body></html>=

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