Subject: Re: [PATCH 0/4][RFC] netns: sysfs: add a netns suffix to net device sysfs entries

From: [email-masked] (Eric W. Biederman)
Date: Wed, 22 Oct 2008 14:08:26 -0700

Greg KH <[email-masked]> writes:

> On Wed, Oct 22, 2008 at 05:21:44PM +0200, Benjamin Thery wrote:
>> Network devices from sub-network namespaces appear in sysfs
>> with a name that looks like this: device_name@netns_id
>> eg: lo@3, eth0@4e
>
> How does the default udev rules as shipped by most distros handle the
> renaming of the network device if the MAC address is duplicated like it
> will be for these eth devices?

The mac address is not duplicated.

Further devices like eth0@4e are completely unusable to the udev
rules in the initial network namespace because they can not talk
to or affect them.

As I read it Ben's ``solution'' puts entries in sysfs that are
completely unusable to udev.

Eric