[ 1806.800228] br0: port 1(dummy0) entered blocking state
[ 1806.800269] br0: port 1(dummy0) entered disabled state
[ 1806.800307] dummy0: entered allmulticast mode
[ 1806.800355] dummy0: entered promiscuous mode
[ 1806.803193] br0: port 1(dummy0) entered blocking state
[ 1806.803226] br0: port 1(dummy0) entered forwarding state
[ 1806.986464] dummy0: left allmulticast mode
[ 1806.986533] dummy0: left promiscuous mode
[ 1806.986596] br0: port 1(dummy0) entered disabled state