That's good - but just because it's supported at the chipset level doesn't 
necessarily mean the ubnt firmware or sdk supports it.  In any case we were 
working with the original a/g nano's and bullets, not the M series. The M is 
way too new and bleeding edge for us.

Tom S.

----- Original Message ----- 
From: "Michael Baird" <[email protected]>
To: "Tom Sharples" <[email protected]>; "WISPA General List" 
<[email protected]>
Sent: Sunday, December 20, 2009 11:02 AM
Subject: Re: [WISPA] Ubiquiti ready for prime time?


> Tom,
>
> Try again, Ubiquity AR71xx based stuff (all the M series) supports a
> hardware watchdog fine.
>
> from dmesg via OpenWRT.
> Atheros AR71xx hardware watchdog driver version 0.1.0
>
> Regards
> Michael Baird
>
>> A hardware watchdog timer, typically, watches only one thing - is the
>> software and/or CPU still alive? If a software pinger fails to reset a
>> hardware counter or timer every few seconds or so, the timer reaches the 
>> end
>> of its count and resets the motherboard. It is a failsafe if everything 
>> else
>> goes wrong - something that happens more often than one would like when
>> you're using developmental drivers. Software watchdogs are a poor 
>> substitute
>> for obvious reasons - if the software or CPU is completely hung, the
>> software watchdog won't work either!
>>
>> Tom S.
>>
>> ----- Original Message ----- 
>> From: "Mark Stephenson" <[email protected]>
>> To: "WISPA General List" <[email protected]>
>> Sent: Sunday, December 20, 2009 4:12 AM
>> Subject: Re: [WISPA] Ubiquiti ready for prime time?
>>
>>
>>
>>> Tom,
>>>
>>> Do you happen to know what a hardware watchdog timer watches? Perhaps
>>> there
>>> is something it can watch like whether or not the device is sending on 
>>> the
>>> Ethernet port or the program counter. But, it seems that as embedded
>>> systems
>>> add more software, a useful hardware watchdog timer becomes less 
>>> possible
>>> because there are more things that can go wrong and it is
>>> difficult/expensive to make the hardware capable of checking those 
>>> things.
>>>
>>> Thanks, Mark
>>>
>>>
>>> On 12/20/09 2:01 AM, "Tom Sharples" <[email protected]> wrote:
>>>
>>>
>>>> A software watchdog timer is not the same thing as a hardware watchdog
>>>> timer.
>>>> And SNMP has nothing to do with either.
>>>>
>>>> Tom S.
>>>>
>>>>   ----- Original Message -----
>>>>   From: [email protected]
>>>>   To: Tom Sharples ; WISPA General List
>>>>   Sent: Saturday, December 19, 2009 9:03 PM
>>>>   Subject: Re: [WISPA] Ubiquiti ready for prime time?
>>>>
>>>>
>>>>   Please don't take me wrong on this but your statement (b) bothers me.
>>>> You
>>>> are either running a very old version of Air OS or you have no clue 
>>>> what
>>>> your
>>>> talking about. UBNT has support for SNMP which I use to monitor not 
>>>> only
>>>> uptime but signal strength and a few other key items check out ZenOss 
>>>> if
>>>> you
>>>> need to watch these devices or any other network device for that 
>>>> matter.
>>>> AirOS
>>>> also has a "Watchdog timer" in the software that will automatically
>>>> reboot a
>>>> device that fails a ping time you set. I have never had to power cycle 
>>>> a
>>>> UBNT
>>>> device. In fact I had to reboot a Mikrotik router because it had a 
>>>> locked
>>>> process in the packet sniffer application that drove the CPU to 100% so
>>>> the
>>>> UBNT gear has a higher uptime than the core router.
>>>>
>>>>   Jaimie
>>>>
>>>>
>>>>   On Sat 12/19/09 12:24 PM , "Tom Sharples" [email protected] sent:
>>>>
>>>>     My biggest concern with these units is (a) lack of mechanical
>>>> robustness -
>>>>     little plastic bits leak or break off quite easily and (b) lack of 
>>>> a
>>>>     hardware watchdog timer which personally I think is essential esp.
>>>> when
>>>>     you're using "development stage" firmware. We did most of the work 
>>>> to
>>>> port
>>>>     our Qcode to run on the ubnt platform, but have decided to shelf 
>>>> that
>>>>     project for another year, waiting for things to really settle down.
>>>> In the
>>>>     CCTV business, there's no-one around to power-cycle the equipment 
>>>> and
>>>>     unrecoverable device hangs are really a disaster. I realize that 
>>>> the
>>>> ISP
>>>>     business is a little different because the customer can always 
>>>> reboot
>>>> the
>>>>     CPE!
>>>>
>>>>     Tom S.
>>>>
>>>>     ----- Original Message -----
>>>>     From: "Robert West" <[email protected]>
>>>>     To: <[email protected]>; "'WISPA General List'" 
>>>> <[email protected]>
>>>>     Sent: Saturday, December 19, 2009 7:55 AM
>>>>     Subject: Re: [WISPA] Ubiquiti ready for prime time?
>>>>
>>>>
>>>>
>>>>> I'm with ya on all that, Jamie. We've had minor issues but I expected
>>>>> things to not be perfect, they never are with version 1.0! The trade 
>>>>> off
>>>>> is
>>>>> worth it, for me anyhow.
>>>>>
>>>>> Bob-
>>>>>
>>>>>
>>>>> -----Original Message-----
>>>>> From: [email protected] [[email protected]] On
>>>>> Behalf Of [email protected]
>>>>> Sent: Saturday, December 19, 2009 10:26 AM
>>>>> To: WISPA General List
>>>>> Subject: Re: [WISPA] Ubiquiti ready for prime time?
>>>>>
>>>>>
>>>>> We use all UBNT and I have been very happy with the equipment.
>>>>> Tower has 2 Rocket M5s With 120 sectors, backhaul is Rocket M5s with
>>>>> the Rocket Dish. CPEs are Nano M5. Durring testing at 4 Miles with
>>>>> CPE to AP I was able to sustain symmetrical speeds of 75M to our
>>>>> test server on the other end of the backhaul. I was really amazed at
>>>>> how well they preformed for the price. I have read all the horror
>>>>> stories in the UBNT forums but have yet to have one problem. Probably
>>>>> just cursed myself and should of kept my mouth shut. But so far so
>>>>> good.
>>>>> On Sat 12/19/09 6:35 AM , Mike [email protected] sent:
>>>>> I was almost ready to pull the trigger on some Ubiquiti equipment
>>>>> for
>>>>> a new project. The scent of low price is alluring. Then I start
>>>>> reading about connectors pulling out, connectors not soldered on
>>>>> properly, and the wrong boot code on boards.
>>>>> Is it too early? Should I wait a bit before I dive in? Has the
>>>>> haste to get product into the distribution stream compromised
>>>>> quality
>>>>> control? Is the low price just too good to be true? I'd be
>>>>> interested in some constructive thoughts and analysis.
>>>>> Thanks mg
>>>>>
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>>>>     19:38:00
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