[ 1926.548793] br0: port 1(dummy0) entered blocking state
[ 1926.548866] br0: port 1(dummy0) entered disabled state
[ 1926.548933] dummy0: entered allmulticast mode
[ 1926.549014] dummy0: entered promiscuous mode
[ 1926.552656] br0: port 1(dummy0) entered blocking state
[ 1926.552690] br0: port 1(dummy0) entered forwarding state
[ 1926.809925] dummy0: left allmulticast mode
[ 1926.809987] dummy0: left promiscuous mode
[ 1926.810017] br0: port 1(dummy0) entered disabled state