[ 1858.069063] br0: port 1(dummy0) entered blocking state
[ 1858.069140] br0: port 1(dummy0) entered disabled state
[ 1858.069206] dummy0: entered allmulticast mode
[ 1858.069290] dummy0: entered promiscuous mode
[ 1858.072850] br0: port 1(dummy0) entered blocking state
[ 1858.072888] br0: port 1(dummy0) entered forwarding state
[ 1858.335728] dummy0: left allmulticast mode
[ 1858.335769] dummy0: left promiscuous mode
[ 1858.335849] br0: port 1(dummy0) entered disabled state