[ 1928.730902] br0: port 1(dummy0) entered blocking state
[ 1928.730948] br0: port 1(dummy0) entered disabled state
[ 1928.730978] dummy0: entered allmulticast mode
[ 1928.731032] dummy0: entered promiscuous mode
[ 1928.734438] br0: port 1(dummy0) entered blocking state
[ 1928.734470] br0: port 1(dummy0) entered forwarding state
[ 1928.992240] dummy0: left allmulticast mode
[ 1928.992270] dummy0: left promiscuous mode
[ 1928.992299] br0: port 1(dummy0) entered disabled state