From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stephen Hemminger <stephen@networkplumber.org>
Subject: Re: If bridge have no sub-interfaces, it's status may be still with
 'RUNNING'
Date: Mon, 16 Feb 2015 11:51:37 -0500
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Cc: yzhu1 <Yanjun.Zhu@windriver.com>, netdev <netdev@vger.kernel.org>,
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	"Tao, Yue" <Yue.Tao@windriver.com>
To: David Ahern <dsahern@gmail.com>
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Originally bridge code would start with carrier off,
but there were users using bridge as a form of dummy device
and this broke them. Therefore it was decided (like 5 yrs ago),
that bridge should start with carrier on.