[ 1578.592232] br0: port 1(dummy0) entered blocking state
[ 1578.592273] br0: port 1(dummy0) entered disabled state
[ 1578.592310] dummy0: entered allmulticast mode
[ 1578.592360] dummy0: entered promiscuous mode
[ 1578.594903] br0: port 1(dummy0) entered blocking state
[ 1578.594965] br0: port 1(dummy0) entered forwarding state
[ 1578.779211] dummy0: left allmulticast mode
[ 1578.779277] dummy0: left promiscuous mode
[ 1578.779348] br0: port 1(dummy0) entered disabled state