[ 2007.642642][ T7894] br0: port 1(dummy0) entered blocking state
[ 2007.642887][ T7894] br0: port 1(dummy0) entered disabled state
[ 2007.643599][ T7894] dummy0: entered allmulticast mode
[ 2007.644666][ T7894] dummy0: entered promiscuous mode
[ 2007.675226][ T7895] br0: port 1(dummy0) entered blocking state
[ 2007.675515][ T7895] br0: port 1(dummy0) entered forwarding state
[ 2009.649387][   T69] dummy0: left allmulticast mode
[ 2009.650125][   T69] dummy0: left promiscuous mode
[ 2009.650623][   T69] br0: port 1(dummy0) entered disabled state