netdev - Re: [PATCH RFC 0/5] net: L2 only interfaces

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Message-ID: <CACP96tSxYyWUhAeXTzc49P4Wk3Lr6mr1MMm_7pZQoK4iEdQ5sg@mail.gmail.com>
Date:	Tue, 25 Aug 2015 16:44:47 -0700
From:	Sowmini Varadhan <sowmini05@...il.com>
To:	Florian Fainelli <f.fainelli@...il.com>
Cc:	netdev <netdev@...r.kernel.org>,
	David Miller <davem@...emloft.net>, andrew@...n.ch,
	linux@...ck-us.net,
	Jiří Pírko <jiri@...nulli.us>,
	sfeldma@...il.com
Subject: Re: [PATCH RFC 0/5] net: L2 only interfaces

On Tue, Aug 25, 2015 at 3:50 PM, Florian Fainelli <f.fainelli@...il.com> wrote:
> Hi all,
>
> This patch series implements a L2 only interface concept which basically denies
> any kind of IP address configuration on these interfaces, but still allows them
> to be used as configuration end-points to keep using ethtool and friends.
>

This is a very interesting idea. A few questions/thoughts: will there
be any eventual restrictions on which types interfaces can be L2_ONLY?
Ideally, it should be possible to let interfaces wink in/out of L2 only
state administratively (as can be done on a typical router, after unwinding
existing config as needed)

I'm assuming something will prevent an L2-only interface from being
part of a vrf.

--Sowmini
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