[arm-allstar] Node connections at startup

James R. Pilgram jim.pilgram at gmail.com
Tue Oct 14 18:06:10 EST 2014


Sorry about that.. Somehow I replied to the wrong email but for the 
record I like the metal cases from Logic Supply. Somehow the plastic 
ones just don't seem right in the RF environment
Jim NH6HI
.
On 10/14/14 11:36, David McGough wrote:
> BBB cases are available from many sources. See some examples at these
> links (you'll have to scroll down some):
>
> http://www.adafruit.com/category/75
> http://www.logicsupply.com/components/beaglebone/boards-cases-kits/
>
>
> On Tue, 14 Oct 2014, Dave P wrote:
>
>> I need to order a case for the unit.  So don't have it activated at the
>> moment.  Hope by this weekend.  Do you have company to get the case?
>>
>>
>>
>> On Tue, Oct 14, 2014 at 11:03 AM, James R. Pilgram <jim.pilgram at gmail.com>
>> wrote:
>>
>>>   you got a bbb hooked to the system on your end? bring up LSnodes
>>> use http://your BBB local IP address/lsnodes/lsnodes_form.html  to bring
>>> it up
>>>
>>> On 10/14/14 10:50, Doug Crompton wrote:
>>>
>>> I notice that in spite of its low power consumption many users operate BBB
>>> nodes in an up and down fashion. That is if they only use it in the evening
>>> or some other time of the day they turn it on use it for awhile and then
>>> turn it off. The problem arises when you expect your node to come up and be
>>> ready for a connect immediately after boot. This is not always the case for
>>> a number of reasons. Here is what happens at boot.
>>>
>>> The Linux OS boots rather fast, within 10 seconds or so. Approximately
>>> 15-30 seconds later Asterisk starts and registers your node. If the
>>> registration is successful at that point, and it usually is, the node list
>>> located at /tmp/rpt_extnodes is populated with the currently active nodes
>>> from allstarlink.org. This would include your node as it was just
>>> registered. This is the list that Allstar uses to map nodes to actual IP
>>> addresses and ports.
>>>
>>> OK so you then try to connect to a distant node and you get a failure.
>>> Why? The reason is that the local node list only updates from
>>> allstarlink.org every 10 minutes at the request of the node. If you
>>> happened to register and download the node list just 10 seconds after the
>>> node you were trying to connect to requested an update you would have to
>>> wait 9+ minutes before that node knew about you in its next update and
>>> allowed your connection. Since these windows are different for each node
>>> the time to be able to connect to a specific node could be seconds to
>>> almost 10 minutes.
>>>
>>> The answer is to not expect everything to just work at startup and if you
>>> can connect to one node and not another it could likely be because of this
>>> delay. Start your node and go get a cup of coffee then try to connect.
>>>
>>> Note that this problem would probably not exist if you were just rebooting
>>> a node that has been running or if the node was unregistered for a short
>>> amount of time and it would not exist at all if you left your BBB running.
>>>
>>> Because this question often comes up I will be including a message about
>>> this in the next BBB release.
>>>
>>>
>>>
>>> *73 Doug WA3DSP http://www.crompton.com/hamradio
>>> <http://www.crompton.com/hamradio>*
>>>
>>>
>>> _______________________________________________
>>>
>>> arm-allstar mailing listarm-allstar at hamvoip.orghttp://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar
>>>
>>> Visit the BBB web page - http://www.crompton.com/hamradio/BeagleBoneBlackAllstar/
>>>
>>>
>>>
>>> _______________________________________________
>>>
>>> arm-allstar mailing list
>>> arm-allstar at hamvoip.org
>>> http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar
>>>
>>> Visit the BBB web page -
>>> http://www.crompton.com/hamradio/BeagleBoneBlackAllstar/
>>>
> _______________________________________________
>
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>
> Visit the BBB web page - http://www.crompton.com/hamradio/BeagleBoneBlackAllstar/
>



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