sir, plz help me how to implement CTP(Collection Tree Protocol ) in tinyos
on Tossim. and how to calculate the ETX value.
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Hi XiaoYang，
Thank you for your advices. I would try it later.
Did you have some experience in combining CTP and security function?
The most tough problem for me is that I'm not sure whether to insert
SecAMSenderP(which is provided by the system lib) into CTP code(in directory
lib/net/ctp
Hi Yang,
What is the content in line 319? Can you provide more details about the
code where the error occurs?
For my experience, this should be very simple syntax error, as the error
message indicates. You can try either include "message.h" in your code, or
declare all the local variables at the
Hi all,
I try to add security function into CTP code. But I have tried some methods
to implemented security function and all failed.
*Method I *CTP provides CC2420SecurityMode , App is wiring with components
CTP.CC2420SecurityMode and CC2420keys.
The Main infracture are shown below:
*CollectionC.
Guys,
you know why the IRIS does not support the implementation of the LPL (Low
Power Listening) with ftsp (Flooding Time Synchronization Protocol).
Not implemented, or there is some impediment of hardware?
I have a network with 60 IRIS and I can not implement a synchronization of
clocks. In MICAZ
Please look at apps/tests/TestNetworkLpl for an example.
- om_p
On Wed, Sep 5, 2012 at 12:07 PM, Gustavo Zanatta Bruno
wrote:
> Guys, I'm having problems implement a program that uses the CTP (Collection
> Tree Protocol) with LPL (Low Power Listening), gives an error when calling
> the setLocalS
Guys, I'm having problems implement a program that uses the CTP (Collection
Tree Protocol) with LPL (Low Power Listening), gives an error when calling
the setLocalSleelpInterval, says he does not think the method. If anyone
has any examples I am very grateful.
--
*Graciously*
*Gustavo Zanatta Bru
In testnetworklpl were all my answer after doing some experiments with more
carefully.
Thanks OM
2012/9/6 Gustavo Zanatta Bruno
> *Thanks for your reply, but this example does not have the call to the
> function setLocalSleepInterval, and if I try to implement it, look at the
> output I got:*
>
*Thanks for your reply, but this example does not have the call to the
function setLocalSleepInterval, and if I try to implement it, look at the
output I got:*
*
*
zanatta@zanatta-desktop:~/workspace/Thermal_Management/MultihopSensing/trunk/src$
SENSORBOARD=mda100 make micaz
mkdir -p build/micaz
Please try apps/tests/TestNetworkLpl
- om_p
On Wed, Sep 5, 2012 at 3:56 PM, Gustavo Zanatta Bruno wrote:
> Guys, I'm having problems implement a program that uses the CTP (Collection
> Tree Protocol) with LPL (Low Power Listening) in Micaz, gives an error when
> calling the setLocalSleelpInterva
Guys, I'm having problems implement a program that uses the CTP (Collection
Tree Protocol) with LPL (Low Power Listening) in Micaz, gives an error when
calling the setLocalSleelpInterval, says he does not think the method. If
anyone has any examples I am very grateful.
--
*Graciously*
*Gustavo Za
On Wed, Feb 29, 2012 at 7:59 PM, yanzhi zeng wrote:
> Hi,
> who has a demo that uses Ctp protocol, I want to learn how to use Ctp.
This is a good place to start:
http://docs.tinyos.net/tinywiki/index.php/Network_Protocols
- om_p
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Hi,
who has a demo that uses Ctp protocol, I want to learn how to use Ctp.
thanks
Sincerely,
Yanzhi
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Hi,
I am newbie to tinyos. I have TinyOS 2.1.1 installed on Ubuntu 11.10. I was
trying to implement CTP along with FTSP for one of my course project. I
implemented FTSP and it worked well. But when I was trying to implement CTP,
the motes (IRIS motes with light sensors) hang forever (no exchang
Hi Rubenalia,
I am working on the same thing, I am trying to simulate CTP+LPL for micaz on
Avrora without any sensorboard or security plan. I cannot verify that LPL is
working properly.
I wonder how you have simulated CTP+LPL? did you change the codes for CTP
and insert some LPL commands per p
Hi Rubenalia,
I am working on the same thing, I am trying to simulate CTP+LPL for micaz on
Avrora without any sensorboard or security plan. I cannot verify that LPL is
working properly.
I wonder how you have simulated CTP+LPL? did you change the codes for CTP
and insert some LPL commands per p
Dear Zhichao Cao,
Thank you very much for answer.
What you say makes perfect sense to me.
I'm really thankful for your help.
I couldn't figure it out by myself.
I somehow always missed the fact, that data_total is only reset if
data_success > 0.
Thanks again
Christian
On Tue, 20 Sep 2011 10:1
check the sent cache size.
On Wed, Sep 21, 2011 at 2:49 AM, Newlyn Erratt wrote:
> All,
>
> I am trying to pinpoint the issue with my current program. I am using
> TinyOS 2.1.1 and CTP. At the root node of My network I am passing the
> packets on and am using the Listen program to see what I a
All,
I am trying to pinpoint the issue with my current program. I am using
TinyOS 2.1.1 and CTP. At the root node of My network I am passing the
packets on and am using the Listen program to see what I am receiving. The
problem I am seeing is that I receive a number of packets with only the etx
Thank you very much for your kind reply,
I think, I'm on the wrong train with my assumptions.
However, I can not spot my mistake on my own.
Please help me understand.
> If more than MAX_PKT_GAP beacons are lost, the code will reinitialize
> the link information. The code is in the same file.
If
On Tue, Sep 6, 2011 at 5:12 AM, Francisco J. wrote:
> Hello, im working with CTP and have a question about it.
>
> In the task 'updateRouteTask' implemented in the file
> 'ctpRoutingEngineP.nc', the first part the node scan each row in the
> neighbor table:
>
> /* Find best path in table,
On Fri, Sep 9, 2011 at 11:57 AM, Christian wrote:
> Dear TinyOS community,
>
> I have a problem understanding, how CTP's updateRouteTask() works, if
> the 4-Bit Link Estimator is used.
>
> Consider the following example:
> Node 2 with costs 70 is currently using node 1 (costs 20) as parent.
> He c
Dear TinyOS community,
I have a problem understanding, how CTP's updateRouteTask() works, if
the 4-Bit Link Estimator is used.
Consider the following example:
Node 2 with costs 70 is currently using node 1 (costs 20) as parent.
He could also choose node 3, that has costs 60 over a link of costs 1
Hello, im working with CTP and have a question about it.
In the task 'updateRouteTask' implemented in the file
'ctpRoutingEngineP.nc', the first part the node scan each row in the
neighbor table:
/* Find best path in table, other than our current */
for (i = 0; i < routingTableAct
Hi,
I wonder if there is an implementation for CTP + LPL somewhere in the CVS or
anywhere else, I checked out TestNetworkLpl in tinyos-2.x/apps/tests but it
seems there should be also some modifications to CTP itself, per packet
transmission,
Also as I have understood LPL is not supported by TOSSI
1 at 9:29 AM, Saif Ahmad wrote:
>>
>>
>> -- Forwarded message --
>> From: Omprakash Gnawali
>> Date: Fri, May 13, 2011 at 9:12 AM
>> Subject: Re: [Tinyos-help] CTP protocol implementation in TOSSIM
>> To: Saif A
>> Cc: tinyos-hel
3, 2011 at 9:12 AM
> Subject: Re: [Tinyos-help] CTP protocol implementation in TOSSIM
> To: Saif A
> Cc: tinyos-help@millennium.berkeley.edu
>
>
> On Sat, May 7, 2011 at 11:04 PM, Saif A wrote:
> >
> > I am a newbie at TOSSIM and would like to simulate the CTP proto
On Sat, May 7, 2011 at 11:04 PM, Saif A wrote:
>
> I am a newbie at TOSSIM and would like to simulate the CTP protocol. Can
> somebody please kindly provide a step-by-step procedure on how to get
> started with simulating CTP. I have already gone through the TOSSIM tutorial
> but what next now?
T
I am a newbie at TOSSIM and would like to simulate the CTP protocol. Can
somebody please kindly provide a step-by-step procedure on how to get
started with simulating CTP. I have already gone through the TOSSIM tutorial
but what next now?
--
View this message in context:
http://old.nabble.com/
Try to turn off LPL and check if there is any difference - maybe security
increases the consumption, but it is really huge difference.
2011/4/28 Rubenalia
> Hi Damian,
>
> I know that Avrora doesn't have all CC2420Security characteristics
> implemented, but it should show more or less the same r
Hi Damian,
I know that Avrora doesn't have all CC2420Security characteristics
implemented, but it should show more or less the same results with both
apps. i mean, i suppose the overhead packet for security header should
increase the energy consumption (and this is what i want to study) but, for
i
Hi.
Looks like you are doing something similar to what I am doing :)
When I used Packet monitor in Avrora with encryption enabled, it gave me
weird result - some weird symbols and pc speaker singing :) I guess that
avrora may have problems with simulating apps which use encryption.
PS. Hadware s
Hi all,
I develop an application that sense temperature and send its value throught
radio CC2420chip (MicaZ plattform). I'm using CTP+LPL and testing it in
Avrora. I use energy monitor and I can check that it's doing its work
properly, I mean, the app puts the radio chip in sleep mode during almos
Hello,
I am sending a message every 5 minutes with mica2 motes and I use CTP. Since I
would like to reduce the power consumption.
I want to know which values should I choose to use the LPL:
CFLAGS += -DLOW_POWER_LISTENING
CFLAGS += -DLPL_DEF_LOCAL_WAKEUP=512
CFLAGS += -DLPL_DEF_REMOTE_W
On Wed, Mar 16, 2011 at 5:52 AM, Matthias Schwamborn
wrote:
> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA1
>
> Hi all,
>
> I've been looking into the TinyOS 2.1.1 CTP (lib/net/ctp) and Link
> Estimator (lib/net/le) implementation in order to understand how ETX
> values are calculated.
>
> If I
On Mar 21, 2011, at 1:57 AM, wasif masood wrote:
>
> Hi all,
>
> Can someone tell me whether CTP can maintain multiple roots in its current
> implementation?
>
> BR,
> Wasif Masood
Yes. A node will automatically choose to route towards the root that has the
lowest cost path.
Phil
Hi all,
Can someone tell me whether CTP can maintain multiple roots in its current
implementation?
BR,
Wasif Masood
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-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Hi all,
I've been looking into the TinyOS 2.1.1 CTP (lib/net/ctp) and Link
Estimator (lib/net/le) implementation in order to understand how ETX
values are calculated.
If I understand it correctly, the ETX stored in both CTP routing and
data packets a
Thanks for those replies: I have a better understanding now of how the
CTP+LPL timeouts work.
Fyi: I am seeing about 5-6 hour delays in re-establishing the mesh
network when there's a problem
Here's the use case:
- 2 motes, pretty far away from the basestation, but the signal is
able to get thro
On Sat, Mar 12, 2011 at 8:51 PM, Philip Levis wrote:
>
> On Mar 7, 2011, at 2:02 AM, David wrote:
...
>> If the motes are unable to contact the basestation for a long time
>> (eg: hours/days), but then later the basestation becomes available -
>> then how long typically would it take for the netwo
On Mar 7, 2011, at 2:02 AM, David wrote:
> Hi there,
>
> I've started using CTP+LPL in a project (thanks for the earlier
> suggestion), and have a few questions about the network behavior when
> the basestation mote is offline/unavailable.
>
> (in this mail, I assume a very basic setup, where t
Hi,
I tried to change the code as suggested in the link, and now finally
the nodes send data to the sink.
It is strange that after one year the problem is still not fixed.
Thanks again for your help.
Massimiliano
On Tue, Mar 8, 2011 at 8:57 PM, Manjunath Doddavenkatappa
wrote:
>
> Sometime back,
Sometime back, 2.1.1 had problems on Motelab because of the problm
described here: http://olafland.wordpress.com/2010/06/21/tinyos-2-x-and-motelab/
However, I am not sure whether the problem exists still.
Manjunath D
###
Dear all,
I'm trying to run TestNetworkLPL, from the last tinyos 2.x code, on Motelab.
Running the code as it is, setting node 103 as sink, the nodes do not
exchange any packet.
I have done many attemps setting different local/remote wakeup
interval, but nothing has changed.
Does anybody have some
Hi there,
I've started using CTP+LPL in a project (thanks for the earlier
suggestion), and have a few questions about the network behavior when
the basestation mote is offline/unavailable.
(in this mail, I assume a very basic setup, where the motes can
normally all reach the basestation directly
Also, a quick amendment to the one question:
>
> 4. Time for CTP network to re-establish.
>
> If the motes are unable to contact the basestation for a long time
> (eg: hours/days), but then later the basestation becomes available -
> then how long typically would it take for the network to re-esta
On Feb 4, 2011, at 9:35 AM, Xiaohui Liu wrote:
> Hi,
>
> I think there is a mistake in my previous email, t should be within
> [currentInterval / 2, currentInterval], sorry about that.
>
> But I'm still not sure What "tHasPassed" means. Can anyone helps with that?
Trickle picks a time t in t
Hi,
I think there is a mistake in my previous email, t should be within
[currentInterval / 2, currentInterval], sorry about that.
But I'm still not sure What "tHasPassed" means. Can anyone helps with that?
On Fri, Feb 4, 2011 at 12:15 PM, Xiaohui Liu wrote:
> Hi everyone,
>
> In CTP router, I
Hi everyone,
In CTP router, I have the following questions regarding the adaptive
beaconing, please see comments inline.
void chooseAdvertiseTime() {
t = currentInterval;
t /= 2;
t += call Random.rand32() % t; * // t is within [currentInterval
/ 2, currentInterval *
We used tinyos 2.1.1-3, which release in April. The hardware we use is telosb
with CC2420 radio.
By the way, we've download the latest version from google code, but how can we
install this latest version? Just replace the tinyos-2.x folder tree with older
one?
Many thanks.
Best regards,
Sea
Hi Sean,
Can you try out the latest SVN repository from google code? (By the
way, I think the issue Fabrice mentioned will not improve CTP)
Best,
Miklos
2011/1/4 Fabrice Dossin :
> Dear,
> Which hardware and which tinyos version do you use ? I was having such
> problem with IRIS motes.
> I have
Dear,
Which hardware and which tinyos version do you use ? I was having such
problem with IRIS motes.
I have finally switched to another routing algorithm but I was still
experiencing issues like this. Finally it was found as a bug inside the
rf230 driver and was fixed on the trunk repository. I'v
Dear all,
We’ve recently tested the performance of
CTP under high data rate scenario, though it is known that CTP is suitable under
low data rate situation. The data rate is 5 packets per seconds (80 bytes for
payload) and there are at most 8 sources and 12 relays in our testbed. We found
in our ex
acket.setPower(), thus to read the transmission power settings for
>> the received packet, I need to use CC2420Packet.getPower(), is it? Or,
>> getRssi() also gives a similar meanings?
>>
>> thanks
>>
>> Yusnaidi
>>
>>
>>> -
;> Message: 2
>> Date: Fri, 10 Dec 2010 12:23:18 -0500
>> From: Doug Carlson
>> Subject: Re: [Tinyos-help] CTP: CC2420Packet.getPower()
>> To: tinyos-help@millennium.berkeley.edu
>> Message-ID:
>>
>> Content-Type: text/plain; charset="iso-8859
settings for
the received packet, I need to use CC2420Packet.getPower(), is it? Or,
getRssi() also gives a similar meanings?
thanks
Yusnaidi
> --
>
> Message: 2
> Date: Fri, 10 Dec 2010 12:23:18 -0500
> From: Doug Carlson
> Subject: Re:
Yusnaidi,
See the CC2420Packet documentation (
http://www.tinyos.net/tinyos-2.1.0/doc/nesdoc/telosb/ihtml/tos.chips.cc2420.interfaces.CC2420Packet.html).
You are looking for CC2420Packet.getRssi(). get/set power are for
transmission power, getRssi will give you the received signal strength of a
re
Hi All,
I am so stucked to read the power of the received packet. I am using CTP
protocol and sending the packet using Send.send().
I have tried with the AM communication (my other test that not using CTP
protocol), and in that test I send packets using AMSend.send(). I set
certain power using CC
Dear Sir,
Please find the file at the following link. The file contains PRR vs.
LPL_wakeup_interval observations. Please skim through the details provided
below each of the tables in the file.
http://www.comp.nus.edu.sg/~doddaven/lpl.pdf
Sincerely,
Manjunath D
Ok, so lets conclude. Assuming a reliable logging system DST_MSG is not
needed if one logs when the max payload length test fails and RCV_BEACON
might overload the logging system in dense networks.
I guess what you need to decide is whether you want tinyos-main to log when
the max payload length
Hi.
Please refrain from sending the same question multiple times to the mailing
list in such a short timespan.
On Friday 19 November 2010 15:58:55 wasif masood wrote:
> There is no explicit declaration for data in CTP header,yet forwarding
> works, can someone please please explaiin this
There is no explicit declaration for data in CTP header,yet forwarding
works, can someone please please explaiin this
typedef nx_struct {
nx_ctp_options_toptions;
nx_uint8_t thl;// tried_hopcount
nx_uint16_t etx;
nx_am_addr_t origin;
nx_uint8_
There is no explicit declaration for data in CTP header,yet forwarding
works, can someone please please explaiin this
typedef nx_struct {
nx_ctp_options_toptions;
nx_uint8_t thl;// tried_hopcount
nx_uint16_t etx;
nx_am_addr_t origin;
nx_uint8
On Thu, Nov 18, 2010 at 2:39 PM, Morten Tranberg Hansen wrote:
> Oh I didn't realize you were talking about the RCV_MSG event. Yeah the only
> unlogged event between the RCV_MSG event and a possible DST_MSG event at the
> root would be if the max payload length test fails. I'm not sure when/if
>
Oh I didn't realize you were talking about the RCV_MSG event. Yeah the only
unlogged event between the RCV_MSG event and a possible DST_MSG event at the
root would be if the max payload length test fails. I'm not sure when/if
this test fails, but maybe it should be logged for correctness.
Morten
On Nov 17, 2010, at 8:36 PM, Morten Tranberg Hansen wrote:
> I argue that the application, which is signaled receive from the ctp
> forwarding engine, should not necessarily have to tell anybody that it
> received this event, and hence CTP should debug the NET_C_FE_DST_MSG. In
> case the appl
I argue that the application, which is signaled receive from the ctp
forwarding engine, should not necessarily have to tell anybody that it
received this event, and hence CTP should debug the NET_C_FE_DST_MSG. In
case the application, whichever one is used, decides to report the receive
event (thi
I don't think this quite answers my question: it was whether, on using
setLocalWakeupInterval(), you see a change in PRR on simple AM transmissions.
I.e., is this a general link layer issue, or an interaction between the link
layer and CTP? My guess is that it is the former, but evidence would h
On Nov 17, 2010, at 6:38 PM, Morten Tranberg Hansen wrote:
> On Thu, Nov 18, 2010 at 12:00 PM, Philip Levis wrote:
> Why is the current logic for receive() dependent on the application?
>
>
> The application would either have to send the NET_C_FE_DST_MSG event through
> the CollectionDebug in
On Thu, Nov 18, 2010 at 12:00 PM, Philip Levis wrote:
> Why is the current logic for receive() dependent on the application?
>
>
The application would either have to send the NET_C_FE_DST_MSG event through
the CollectionDebug interface or report the reception of a data packet in
some other way.
On Nov 17, 2010, at 5:34 PM, Morten Tranberg Hansen wrote:
> Thats what I thought were the arguments. Personally I like to debug CTP
> independent of the application, and hence find the arrived event useful,
Why is the current logic for receive() dependent on the application?
> and for debu
Thats what I thought were the arguments. Personally I like to debug CTP
independent of the application, and hence find the arrived event useful, and
for debugging purposes and less dense networks I still argue that the
receive beacon is useful.
Maybe these could be added optionally with an ifdef?
On Nov 17, 2010, at 4:45 PM, Morten Tranberg Hansen wrote:
> Hi Om,
>
> I've always wondered why CTP does not report arrived messages and received
> beacons. Over time I've found these events very useful when debugging CTP.
>
> Is there a reason for not reporting these events? If not, see pr
Hi Om,
I've always wondered why CTP does not report arrived messages and received
beacons. Over time I've found these events very useful when debugging CTP.
Is there a reason for not reporting these events? If not, see proposed
changes below.
Morten.
CtpForwardingEngineP.nc
@@ -712,13 +712,17
Dear Sir,
The problem and its cause can be summarized as follows.
In the case of CTP, I guess it is required to set LPL variables (local
and remote sleep intervals) from the Makefile. Otherwise, I guess no
preamble is sent before transmitting routing beacons thus resulting in
unexpected
Excellent, great news. Best, Miklos
On Tue, Nov 16, 2010 at 5:56 PM, Dongyu Yang wrote:
> Hello!
>
> I fine this is cased by the component LowPowerListeningLayerP, and this
> has been fixed by mmaroti on Nov 13, 2010, Revision: r5220. And when I
> update the LowPowerListeningLayerP, it is OK!
Hello!
I fine this is cased by the component LowPowerListeningLayerP, and this
has been fixed by mmaroti on Nov 13, 2010, Revision: r5220. And when I
update the LowPowerListeningLayerP, it is OK!
Thanks for you attention! Best regards!
2010/11/16 Philip Levis
>
> On Nov 1, 2010, at 6:4
On Nov 1, 2010, at 6:46 PM, Dongyu Yang wrote:
> Hello!
>
> The return value is EBUSY. The AM layer do not promise signal
> AMSend.sendDone
> event, if the return value is not SUCCESS when call AMSend.send().
> Because in the component AMQueueImplP, when call Send.send() it may
> retu
On Nov 1, 2010, at 2:03 PM, Omprakash Gnawali wrote:
> On Mon, Nov 1, 2010 at 2:52 AM, wasif masood wrote:
>>
>> Yes, I think it would be troublesome if one neighbor completely vanishes
>> from the vicinity of a node because in that case node will always be
>> transmitting 3 byte additional ove
On Nov 7, 2010, at 3:40 AM, Manjunath Doddavenkatappa wrote:
>
> Dear Dr. Gnawali,
>
> Sorry to get back to you so late, we had a paper deadline.
>
> Everything works fine if I set LPL variables from the Makefile as in
> TestNetworkLpl. Problems arise only on trying to set LPL variables from
Hi,
I am working over CTP may be someone can answer some simple questions of
mine which are as follows:
1)- In the ctp_data_header, there is no specific filed for data, when we
receive a msg from above it simply do getHeader and starts overriting that
msg. So why does the data not get currupted b
Dear Dr. Gnawali,
Sorry to get back to you so late, we had a paper deadline.
Everything works fine if I set LPL variables from the Makefile as in
TestNetworkLpl. Problems arise only on trying to set LPL variables from
the program using "setLocalWakeupInterval()". Just to verify in the later
Hello!
The return value is EBUSY. The AM layer do not promise signal
AMSend.sendDone
event, if the return value is not SUCCESS when call AMSend.send().
Because in the component AMQueueImplP, when call Send.send() it may
return
EBUSY in two place, as show below:
generic module AMQueueImpl
On Mon, Nov 1, 2010 at 2:52 AM, wasif masood wrote:
>
> Yes, I think it would be troublesome if one neighbor completely vanishes
> from the vicinity of a node because in that case node will always be
> transmitting 3 byte additional overhead in terms of the reverse link
> neighbour quality.
Good
Yes, I think it would be troublesome if one neighbor completely vanishes
from the vicinity of a node because in that case node will always be
transmitting 3 byte additional overhead in terms of the reverse link
neighbour quality.
On Fri, Oct 29, 2010 at 8:59 PM, Omprakash Gnawali
wrote:
> On Thu
On Sat, Oct 23, 2010 at 12:25 AM, Dongyu Yang wrote:
> I have tested this: when one Node (A) happened this phenomenon, I reduce
> the dissemination rate
> to once ever 10 seconds, and stop the other Nodes, this phenomenon exist
> still, the Node (A) can
> only receive the dissemination command, b
On Thu, Oct 28, 2010 at 6:16 AM, wasif masood wrote:
>
>
> I am wondering how CTP evicts a complelety dead neighbor? because the normal
> procedure is this:
>
> 1-
> if (curr_seq - pre_seq > 10)
> remove the neighbor
>
> if(nieghbortable full)
> remove the most loss neighbor
>
> now what will
I am wondering how CTP evicts a complelety dead neighbor? because the normal
procedure is this:
1-
if (curr_seq - pre_seq > 10)
remove the neighbor
if(nieghbortable full)
remove the most loss neighbor
now what will happen, if there is still some space in NeighborTable and its
not possible to
On Fri, Oct 22, 2010 at 9:37 PM, Dongyu Yang wrote:
>>
>> Hello!
>> I set up one network containing four Node and one Root, and use "drip" to
>> disseminate command, and use "ctp" to collect data.The Root disseminates
>> command every 200 ~ 700 ms (randomly), and the Node use "ctp" to send
>> data
-- Forwarded message --
From: Philip Levis
Date: 2010/10/23
Subject: Re: [Tinyos-devel] CTP: CtpForwardingEngineP component error
To: Dongyu Yang
Cc: tinyos-de...@millennium.berkeley.edu
Please send questions to tinyos-help.
Phil
On Oct 22, 2010, at 10:12 PM, Dongyu Yang wrote
Are you using TestNetworkLpl and changing the flags in the Makefile to
control various intervals? If not, you should tell me how to replicate
your problem starting with TestNetworkLpl.
- om_p
On Thu, Oct 21, 2010 at 11:01 PM, Manjunath Doddavenkatappa
wrote:
>
> Generally, yes. As ETX increases
Generally, yes. As ETX increases lossses also increase. I can observe the
fact that
RetxmitTimer in CtpForwardingEngine being fired quite a few times before sucessfully transmitting every packet.
But, only a few times this does not hold with packets getting through
although ETX remains at a
On Tue, Oct 19, 2010 at 1:04 AM, Manjunath Doddavenkatappa
wrote:
>
> Dear All,
>
> We are not able to figure out a reason why ETX values in CTP increases as
> wake-up interval of the LPL (BoXMaC-One) increases. We have a simple setup
> of a sender and a root node placed adjacent to each other.
Dear All,
We are not able to figure out a reason why ETX values in CTP increases as
wake-up interval of the LPL (BoXMaC-One) increases. We have a simple setup
of a sender and a root node placed adjacent to each other. Nodes use
maximum power of 0 dBm.
1) We are using IPI of 15s. We repe
On Wed, Oct 13, 2010 at 4:53 PM, Manjunath Doddavenkatappa
wrote:
>
> Dear All,
>
> Using CTPInfo.getETX(), I notice unexpected ETX
> values. For example, in a setup of a root node and a child placed adjacent to
> each
> other, I see an ETX value of 10 always. Although there are no losses
Dear All,
Using CTPInfo.getETX(), I notice unexpected ETX
values. For example, in a setup of a root node and a child placed adjacent to
each
other, I see an ETX value of 10 always. Although there are no losses (just
to confirm that there are no losses, I changed MAX_RETRIES to zero, r
following is a field in ctp header msg, does anyone know what sort of
declaration is this?
nx_uint8_t (COUNT(0) data)[0]; // Deputy place-holder, field will probably
be removed when we Deputize Ctp
--
Wasif Masood
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On Aug 24, 2010, at 8:19 PM, Omprakash Gnawali wrote:
> On Tue, Aug 24, 2010 at 3:21 PM, wasif masood
> wrote:
>>
>> the only random values in test.py are related to bootuo time and I
>> don't how
>> this value is going to effect the outcome.
>
>
> Those random values might change the order
On Tue, Aug 24, 2010 at 3:21 PM, wasif masood wrote:
>
> the only random values in test.py are related to bootuo time and I don't how
> this value is going to effect the outcome.
Those random values might change the order in which nodes come up and
start sending messages. That can change the tre
the only random values in test.py are related to bootuo time and I don't how
this value is going to effect the outcome.
On Tue, Aug 24, 2010 at 8:00 PM, Omprakash Gnawali
wrote:
> random
--
Wasif Masood
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