On Oct 8, 2010, at 7:58 AM, Fabrice Dossin wrote:

> Hi,
>
> I am using iris motes in the same kind of load. When load is going  
> higher I see this kind of things.
> I am not sure it is linked but I also have infinite loop into the  
> ctp tree and it never recovers from it.
> I can see data and beacon datagram from the node from the loop but  
> I never see any beacon from the other nodes.
> Also the byte next to the 0x70 or 0x71 byte is always 0x00 like if  
> the P bit was never activated.
>
> Should the P bit be activated so that the other node know they have  
> to send a beacon ?
>
> They should also respond to broadcasted beacon like this one ?
> 15:39:05 'r' 1496976736 4955 35 [ 0x61 0x88 0xf1 0x22 0x00 0xff  
> 0xff 0x09 0x00 0x3f 0x70 0x05 0x5a 0x00 0x00 ] 51 255
>
> Do you think that the channel capacity could lead to such behavior  
> (loops in CTP) ?
> The channel should be so occupied that the mote never sends beacon ?
>
> Which algorithm should we use instead of CTP ? Is there an existing  
> one implemented into TinyOS ?
>
> Kind regards,
> Fabrice Dossin
>

Fabrice,

The easiest way to let Om and me take a look is to send a link to a  
packet trace.

Phil
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