[ 2206.745805][ T1914] br0: port 1(dummy0) entered blocking state
[ 2206.746003][ T1914] br0: port 1(dummy0) entered disabled state
[ 2206.746176][ T1914] dummy0: entered allmulticast mode
[ 2206.747041][ T1914] dummy0: entered promiscuous mode
[ 2206.777091][ T1915] br0: port 1(dummy0) entered blocking state
[ 2206.777287][ T1915] br0: port 1(dummy0) entered forwarding state
[ 2208.795127][   T12] dummy0: left allmulticast mode
[ 2208.795334][   T12] dummy0: left promiscuous mode
[ 2208.795569][   T12] br0: port 1(dummy0) entered disabled state