[ 1881.056033] br0: port 1(dummy0) entered blocking state
[ 1881.056069] br0: port 1(dummy0) entered disabled state
[ 1881.056105] dummy0: entered allmulticast mode
[ 1881.056159] dummy0: entered promiscuous mode
[ 1881.059347] br0: port 1(dummy0) entered blocking state
[ 1881.059380] br0: port 1(dummy0) entered forwarding state
[ 1881.305699] dummy0: left allmulticast mode
[ 1881.305733] dummy0: left promiscuous mode
[ 1881.305766] br0: port 1(dummy0) entered disabled state