[ 1787.906989] br0: port 1(dummy0) entered blocking state
[ 1787.907030] br0: port 1(dummy0) entered disabled state
[ 1787.907067] dummy0: entered allmulticast mode
[ 1787.907120] dummy0: entered promiscuous mode
[ 1787.910460] br0: port 1(dummy0) entered blocking state
[ 1787.910527] br0: port 1(dummy0) entered forwarding state
[ 1788.146548] dummy0: left allmulticast mode
[ 1788.146613] dummy0: left promiscuous mode
[ 1788.146678] br0: port 1(dummy0) entered disabled state