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Subject: Re: Ue0/ue1 flapping
To: freebsd-embedded@freebsd.org
References: <55D6217B.8000805@denninger.net> <55D636FE.9020005@xs4all.nl>
 <55D64AA7.40305@denninger.net> <55D69C73.9030909@denninger.net>
From: Huub Schuurmans <huubsch@xs4all.nl>
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Date: Thu, 8 Oct 2015 11:41:41 +0200
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Op 21/08/15 om 05:35 schreef Karl Denninger:
> On 8/20/2015 16:46, Karl Denninger wrote:
>>
>> On 8/20/2015 15:22, Huub Schuurmans wrote:
>>> Karl Denninger schreef op 20/08/15 om 20:50:
>>>> Raspberry Pi, FreeBSD 11.0-CURRENT #0 r285923: Mon Jul 27 22:55:03 CDT 2015
>>>>
>>>> Two interfaces, the on-board and a Lenovo dongle (as ue1); both are
>>>> flapping at an irregular rate.
>>>>
>>> We have also experienced this flapping with Alix-2d13 boards if two
>>> usb-lan adapters are in use. One adapter is stable, at least on
>>> Freebsd9.0 or older.
>>> On the Alix-board usb-lan adapters do not work at all for FreeBSD
>>> versions more recent than 9.0 (we tested various adapters with different
>>> chips). 

We have now finally found that in our case a running pf is causing
problems with the usb-lan adapters, even if all rules are flushed (!).
Problem doesnot occur with ipfw. We have not tested flapping yet.

Huub