[ 1796.842569] br0: port 1(dummy0) entered blocking state
[ 1796.842623] br0: port 1(dummy0) entered disabled state
[ 1796.842654] dummy0: entered allmulticast mode
[ 1796.842701] dummy0: entered promiscuous mode
[ 1796.845438] br0: port 1(dummy0) entered blocking state
[ 1796.845474] br0: port 1(dummy0) entered forwarding state
[ 1797.029575] dummy0: left allmulticast mode
[ 1797.029642] dummy0: left promiscuous mode
[ 1797.029702] br0: port 1(dummy0) entered disabled state