[Commotion-dev] ubiquiti auto-reset

[Josh King]

Hi Aaron,

No doubt a different frequency would be good. I think our initial use 
case, at least, is a little different from the CONFINE stuff. 
Primarily, we'd be looking to automate testing on our internal testbed 
as part of our CI process. So we could hook Jenkins up to a script that 
would push images out to the supervisor devices as they're built, and 
those would reflash the nodes and run tests. The appeal of getting TFTP 
mode on the Ubiquiti devices is that we could automate reflashing the 
testbed even if a build is bad; we don't have to worry about anything 
on the node working correctly.

There are probably other ways to approach this problem as well, though, 
such as other hardware that's even easier to reflash at a moment's 
notice.

On Fri 31 Jan 2014 06:52:02 AM EST, L. Aaron Kaplan wrote:
> Hi,
>
>
> On Jan 30, 2014, at 10:25 PM, Josh King <jking at opentechinstitute.org> wrote:
>
>> Hi all,
>>
>> I was speculating today about how we might be able to more smoothly
>> automate testing on our various testbed networks. Particularly, I was
>> thinking about how CONFINE uses a recovery device as a "parent" to power
>> cycle a stuck node (http://wiki.confine-project.eu/hw:recovery-device).
>
> A minor update is in place here:
> The approach which was originally proposed by Musti did not turn out to be doable - unfortunately.
>
> We are now looking at other solutions. RIOT-OS [1]  and 6lowpan came to mind.
>
>> This made me think about how some Ubiquiti POEs have a reset button that
>> is able to send a signal over the wire to flip a node into TFTP mode in
>> the same way as the reset button on the node itself. I was wondering if
>> anyone was familiar with how that process actually worked (I assume
>> through sending some hi/low signal on one of the ethernet pins that the
>> chipset in the node recognizes), and if it was possible to simulate it
>> using an Arduino or similar. It would be great to be able to pair
>> testbed nodes with something like a raspberry pi that could remotely
>> reset and TFTP nodes with new firmware and run network tests independent
>> of the nodes themselves.
>
> Absolutely. But It might be good to have them speak on a different protocol and frequency.
> Something like 6lowpan or zigbee.
>
> :)
>
> a.
>
> [1] www.riot-os.org/#about
>

--
Josh King
Lead Technologist
The Open Technology Institute

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