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Date: Wed, 29 Nov 2023 15:43:24 +0800
From: Hangbin Liu <liuhangbin@gmail.com>
To: Stephen Hemminger <stephen@networkplumber.org>
Cc: netdev@vger.kernel.org, "David S . Miller" <davem@davemloft.net>,
	David Ahern <dsahern@kernel.org>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	Ido Schimmel <idosch@idosch.org>,
	Nikolay Aleksandrov <razor@blackwall.org>,
	Roopa Prabhu <roopa@nvidia.com>, Florian Westphal <fw@strlen.de>,
	Andrew Lunn <andrew@lunn.ch>,
	Florian Fainelli <f.fainelli@gmail.com>,
	Vladimir Oltean <olteanv@gmail.com>, Jiri Pirko <jiri@resnulli.us>,
	Marc Muehlfeld <mmuehlfe@redhat.com>
Subject: Re: [PATCHv3 net-next 05/10] docs: bridge: add STP doc
Message-ID: <ZWbrnK9VKczMrCMb@Laptop-X1>
References: <20231128084943.637091-1-liuhangbin@gmail.com>
 <20231128084943.637091-6-liuhangbin@gmail.com>
 <20231128144840.5d3ced05@hermes.local>
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In-Reply-To: <20231128144840.5d3ced05@hermes.local>

On Tue, Nov 28, 2023 at 02:48:40PM -0800, Stephen Hemminger wrote:
> On Tue, 28 Nov 2023 16:49:38 +0800
> Hangbin Liu <liuhangbin@gmail.com> wrote:
> 
> > +STP is a Layer 2 protocol that operates at the Data Link Layer of the OSI
> > +model. It was originally developed as IEEE 802.1D and has since evolved into
> > +multiple versions, including Rapid Spanning Tree Protocol (RSTP) and
> > +`Multiple Spanning Tree Protocol (MSTP)
> > +<https://lore.kernel.org/netdev/20220316150857.2442916-1-tobias@waldekranz.com/>`_.
> > +

The STP was originally developed as IEEE 802.1D. So how about keep this part,

> 
> Last time I checked, IEEE folded RSTP into the standard in 2004.
> https://en.wikipedia.org/wiki/IEEE_802.1D

and add a new paragraph like:

The 802.1D-2004, removed the original Spanning Tree Protocol, instead
incorporating the Rapid Spanning Tree Protocol (RSTP). By 2014, all the
functionality defined by IEEE 802.1D has been incorporated into either
IEEE 802.1Q-2014 (Bridges and Bridged Networks) or IEEE 802.1AC (MAC Service
Definition). 802.1D is expected to be officially withdrawn in 2022.

Thanks
Hangbin