[riot-devel] Association time in mobile RPL/6lowpan networks
joakim.gebart at eistec.se
Thu May 21 08:52:53 CEST 2015
On May 21, 2015 8:37 AM, "Cenk Gündogan" <cenk.guendogan at fu-berlin.de>
> Hey Adam,
> I am currently adopting RPL to our new network stack and while doing so,
> I also added sane functionalities which were plainly missing in the old
> This also includes sending a DIS when initializing RPL for the first time.
> However, I am just now realizing that such a DIS can get lost in our
typical LLN case - it may make sense to send a DIS periodically until a DIO
> Does anyone has an opinion on this?
Good idea, as long as the periodic interval is large enough to not waste
power or cause interruptions in normal traffic if there is no other rpl
node on the network.
> Forcing a DIS from userspace sounds like a good feature. It may help in
testing/debuging the dodag tree interactively.
> I also thought about reseting the trickle timer from userspace to enforce
+1 for this. It would be nice to have some shell commands to call these
> On 21.05.2015 04:36, Adam Hunt wrote:
>> That's great. Is there any way to force a node to send a DIS message
>> On Wed, May 20, 2015, 5:34 PM Oleg Hahm <oliver.hahm at inria.fr> wrote:
>>> Hi Adam!
>>> > Has anyone tested the amount of time it takes for a node (full or
>>> > function) to join an RPL routed 6lowpan network? I realize that it's
>>> > likely to vary quite a bit depending on the network, I'm just curious
>>> > anyone has an approximate range.
>>> As you said: it depends quite a bit on the network and the parameters.
>>> nodes on the current RPL implementation won't send proactively DIS
>>> and the interval of sending DIOs increases, it will usually take just a
>>> of seconds if you try to join the network right after bootup, but can
>>> more than one minute in a later phase.
>>> printk (KERN_ERR "%s: Oops - your private data area is hosed!\n", ...)
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>>> devel at riot-os.org
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