[ 1925.402248] br0: port 1(dummy0) entered blocking state
[ 1925.402320] br0: port 1(dummy0) entered disabled state
[ 1925.402387] dummy0: entered allmulticast mode
[ 1925.402467] dummy0: entered promiscuous mode
[ 1925.405953] br0: port 1(dummy0) entered blocking state
[ 1925.405985] br0: port 1(dummy0) entered forwarding state
[ 1925.651297] dummy0: left allmulticast mode
[ 1925.651330] dummy0: left promiscuous mode
[ 1925.651348] br0: port 1(dummy0) entered disabled state