[ 2010.330806][ T6793] br0: port 1(dummy0) entered blocking state
[ 2010.330998][ T6793] br0: port 1(dummy0) entered disabled state
[ 2010.331163][ T6793] dummy0: entered allmulticast mode
[ 2010.332324][ T6793] dummy0: entered promiscuous mode
[ 2010.362736][ T6794] br0: port 1(dummy0) entered blocking state
[ 2010.362970][ T6794] br0: port 1(dummy0) entered forwarding state
[ 2012.241595][   T12] dummy0: left allmulticast mode
[ 2012.242164][   T12] dummy0: left promiscuous mode
[ 2012.243323][   T12] br0: port 1(dummy0) entered disabled state