[ 1945.979594] br0: port 1(dummy0) entered blocking state
[ 1945.979670] br0: port 1(dummy0) entered disabled state
[ 1945.979740] dummy0: entered allmulticast mode
[ 1945.979827] dummy0: entered promiscuous mode
[ 1945.983627] br0: port 1(dummy0) entered blocking state
[ 1945.983660] br0: port 1(dummy0) entered forwarding state
[ 1946.266458] dummy0: left allmulticast mode
[ 1946.266496] dummy0: left promiscuous mode
[ 1946.266553] br0: port 1(dummy0) entered disabled state