[ 1858.418006] br0: port 1(dummy0) entered blocking state
[ 1858.418053] br0: port 1(dummy0) entered disabled state
[ 1858.418086] dummy0: entered allmulticast mode
[ 1858.418137] dummy0: entered promiscuous mode
[ 1858.421795] br0: port 1(dummy0) entered blocking state
[ 1858.421861] br0: port 1(dummy0) entered forwarding state
[ 1858.696730] dummy0: left allmulticast mode
[ 1858.696769] dummy0: left promiscuous mode
[ 1858.696803] br0: port 1(dummy0) entered disabled state