[181271] in North American Network Operators' Group

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Re: Ghosts in our 6 New Ubiquity Pros - provision issues.

daemon@ATHENA.MIT.EDU (Mel Beckman)
Fri Jun 19 14:14:30 2015

X-Original-To: nanog@nanog.org
From: Mel Beckman <mel@beckman.org>
To: Sam Tetherow <tetherow@shwisp.net>
Date: Fri, 19 Jun 2015 18:11:18 +0000
In-Reply-To: <55844C74.2000602@shwisp.net>
Cc: "<nanog@nanog.org>" <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org

Have you done a network analysis for viruses or bridge loops? This could be=
 a broadcast storm caused by either of those network faults.

 -mel

> On Jun 19, 2015, at 10:08 AM, Sam Tetherow <tetherow@shwisp.net> wrote:
>=20
> Only have 1 Pro on my network and it hasn't given me any issues, several =
of the original AP and AP-LR as well without issues.
>=20
> What is the uptime on the AP?  You should be able to ssh into the APs usi=
ng the controller username and password.  It is a linux base so 'uptime' wi=
ll tell you.  You can also check for ethernet errors using 'ip -s link' on =
the AP side.
>=20
> On 06/19/2015 11:45 AM, Bob Evans wrote:
>> We have all APs set with static addresses. EdgeMax only hands out IPs to
>> clients using the APs.
>>=20
>> This happens when people are using the APs and when no one is even in th=
e
>> building  at 2am when there are no clients connected. It can happen to o=
ne
>> then 5 hours later it happens again...then doesn't happen again for 12
>> hours. Totally random no interval.
>>=20
>> It is nice to know that others have no issues with these UniFi AP Pros.
>> They seem to be fine except for the 2 mins or so they randomly drop link
>> and reboot themselves. All are on APC UPSes and other devices in the sam=
e
>> switch , like voip phones, never drop the ports.
>>=20
>> They are all new, delivered in various batches over time. We checked and
>> all are the latest versions.
>>=20
>> Bob Evans
>>=20
>>=20
>>=20
>>=20
>>> The IP can change on the UniFi without having to re-adopt or
>>> re-provision.  APs are identified by MAC address at the UniFi protocol
>>> level (not layer 2).
>>>=20
>>> On 06/19/2015 09:09 AM, Naslund, Steve wrote:
>>>> Here is another though.  If your APs are re-provisioning every eight
>>>> hours, what is your DHCP lease time?  Are you sure the APs are able to
>>>> renew their leases (if not, could your scope be full)?  Do you see the
>>>> IP addresses on the APs changing when they come back up?  These could
>>>> indicate a DHCP server issue.  If the AP gets a new IP address it will
>>>> likely have to be re-adopted to the controller.  You might want to
>>>> static address one or more APs to test this theory.
>>>>=20
>>>> Steven Naslund
>>>> Chicago IL
>>>=20
>>=20
>=20


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