linux-kernel - Re: [PATCH for net-next] if_ether.h: Clarify ethertype validity for gsw1xx dsa

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Message-ID: <7000f777-d082-4b06-88dd-67f947c85d2a@lunn.ch>
Date: Mon, 17 Nov 2025 14:28:55 +0100
From: Andrew Lunn <andrew@...n.ch>
To: Peter Enderborg <peterend@...s.com>
Cc: Andrew Lunn <andrew+netdev@...n.ch>,
	"David S . Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	netdev@...r.kernel.org, Daniel Golle <daniel@...rotopia.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH for net-next] if_ether.h: Clarify ethertype validity for
 gsw1xx dsa

On Mon, Nov 17, 2025 at 10:02:05AM +0100, Peter Enderborg wrote:
> (resend due to html bounce)
> On 11/15/25 21:41, Andrew Lunn wrote:
> > On Fri, Nov 14, 2025 at 02:59:36PM +0100, Peter Enderborg wrote:
> > > Ref https://standards-oui.ieee.org/ethertype/eth.txt
> > > 
> > > 
> > Is this actually registered with IANA?
> 
> No.
> 
> > https://www.iana.org/assignments/ieee-802-numbers/ieee-802-numbers.xhtml
> > 
> > Does not list it. Please keep the "NOT AN OFFICIALLY REGISTERED ID" if
> > it is not.

> IEEE is the official source to use for ethertype number assignment.

What i want to make clear is, if IEEE officially allocate this to
something else, this is an unofficial allocation, and the official use
can replace it. We have a few ID like this, and never had a collision
yet, but it could happen.

	Andrew