[ 1799.542578] br0: port 1(dummy0) entered blocking state
[ 1799.542626] br0: port 1(dummy0) entered disabled state
[ 1799.542664] dummy0: entered allmulticast mode
[ 1799.542723] dummy0: entered promiscuous mode
[ 1799.546437] br0: port 1(dummy0) entered blocking state
[ 1799.546500] br0: port 1(dummy0) entered forwarding state
[ 1799.826683] dummy0: left allmulticast mode
[ 1799.826727] dummy0: left promiscuous mode
[ 1799.826759] br0: port 1(dummy0) entered disabled state