[ 1787.847832] br0: port 1(dummy0) entered blocking state
[ 1787.847886] br0: port 1(dummy0) entered disabled state
[ 1787.847929] dummy0: entered allmulticast mode
[ 1787.847988] dummy0: entered promiscuous mode
[ 1787.850997] br0: port 1(dummy0) entered blocking state
[ 1787.851068] br0: port 1(dummy0) entered forwarding state
[ 1788.046498] dummy0: left allmulticast mode
[ 1788.046579] dummy0: left promiscuous mode
[ 1788.046651] br0: port 1(dummy0) entered disabled state