[ 2009.291574][T25392] br0: port 1(dummy0) entered blocking state
[ 2009.291772][T25392] br0: port 1(dummy0) entered disabled state
[ 2009.291946][T25392] dummy0: entered allmulticast mode
[ 2009.299786][T25392] dummy0: entered promiscuous mode
[ 2009.327973][T25393] br0: port 1(dummy0) entered blocking state
[ 2009.328247][T25393] br0: port 1(dummy0) entered forwarding state
[ 2011.581973][   T12] dummy0: left allmulticast mode
[ 2011.582839][   T12] dummy0: left promiscuous mode
[ 2011.583085][   T12] br0: port 1(dummy0) entered disabled state