Linux USB
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From: Andrew Lunn <andrew@lunn.ch>
To: David Laight <David.Laight@aculab.com>
Cc: "'Bjørn Mork'" <bjorn@mork.no>,
	"Oliver Neukum" <oneukum@suse.com>,
	"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
	"USB list" <linux-usb@vger.kernel.org>
Subject: Re: question on random MAC in usbnet
Date: Sun, 19 Nov 2023 17:13:18 +0100	[thread overview]
Message-ID: <20891d0a-6ec0-4865-bf61-406f29f2ac6a@lunn.ch> (raw)
In-Reply-To: <64dfec9e75a744cf8e7f50807140ba9a@AcuMS.aculab.com>

> So you might want to save the MAC on device removal and
> re-use it on the next insert.

That gets interesting when you have multiple USB-Ethernet dongles.

I have a machine with 20 of them, which i use for functional testing
of Ethernet switches. Luckily for me, they all have a vendor assigned
MAC address.

> 
> [1] We ended up putting the USB interface inside a 'bond'
> in order to stop the interface everything was using
> randomly disappearing due to common-mode noise on the
> USB data lines causing a disconnect.

Maybe you should of just thrown the hardware away since it seems
broken.

	Andrew

  reply	other threads:[~2023-11-19 16:13 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-11-16 10:14 question on random MAC in usbnet Oliver Neukum
2023-11-16 11:31 ` Bjørn Mork
2023-11-16 12:32   ` Oliver Neukum
2023-11-19 11:09   ` David Laight
2023-11-19 16:13     ` Andrew Lunn [this message]
2023-11-20 11:06     ` Oliver Neukum
2023-11-20 16:48     ` Dan Williams

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