[ 1908.148107][T13075] br0: port 1(dummy0) entered blocking state
[ 1908.148303][T13075] br0: port 1(dummy0) entered disabled state
[ 1908.148474][T13075] dummy0: entered allmulticast mode
[ 1908.149626][T13075] dummy0: entered promiscuous mode
[ 1908.180829][T13076] br0: port 1(dummy0) entered blocking state
[ 1908.181152][T13076] br0: port 1(dummy0) entered forwarding state
[ 1909.925324][   T12] dummy0: left allmulticast mode
[ 1909.925606][   T12] dummy0: left promiscuous mode
[ 1909.926242][   T12] br0: port 1(dummy0) entered disabled state