netdev - Q: State of Linux RSTP support

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Message-ID: <542306A2.7020008@imap.cc>
Date:	Wed, 24 Sep 2014 20:00:02 +0200
From:	Tilman Schmidt <tilman@...p.cc>
To:	netdev@...r.kernel.org
Subject: Q: State of Linux RSTP support

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According to Stephen Hemminger's presentation at
http://www.slideshare.net/shemminger/new-bridge (which seems to be the
most recent information available on the topic) the in-kernel bridging
code only provides STP. RTSP is (should be) provided by a user space
daemon, rtspd. However, none of the distributions I routinely use
provide that daemon. Sourceforge has a project named rstpd but it
seems to be inactive.

A search for RSTP in the current git tree finds

- - in net/bridge/br_netlink.c, a comment:
                      /* Binary compatibility with old RSTP */

- - in net/bridge/br_private.h, an enum constant for struct net_bridge
member stp_enabled:
              BR_USER_STP,            /* new RSTP in userspace */

but nothing in, say, the Documentation folder.

Any pointers?

aTdHvAaNnKcSe,
Tilman

- -- 
Tilman Schmidt                              E-Mail: tilman@...p.cc
Bonn, Germany
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