[ 1890.761954] br0: port 1(dummy0) entered blocking state
[ 1890.762024] br0: port 1(dummy0) entered disabled state
[ 1890.762093] dummy0: entered allmulticast mode
[ 1890.762173] dummy0: entered promiscuous mode
[ 1890.765660] br0: port 1(dummy0) entered blocking state
[ 1890.765695] br0: port 1(dummy0) entered forwarding state
[ 1891.008023] dummy0: left allmulticast mode
[ 1891.008084] dummy0: left promiscuous mode
[ 1891.008143] br0: port 1(dummy0) entered disabled state