[ 1742.016825] br0: port 1(dummy0) entered blocking state
[ 1742.016879] br0: port 1(dummy0) entered disabled state
[ 1742.016912] dummy0: entered allmulticast mode
[ 1742.016965] dummy0: entered promiscuous mode
[ 1742.019504] br0: port 1(dummy0) entered blocking state
[ 1742.019566] br0: port 1(dummy0) entered forwarding state
[ 1742.211117] dummy0: left allmulticast mode
[ 1742.211190] dummy0: left promiscuous mode
[ 1742.211249] br0: port 1(dummy0) entered disabled state