[ 2131.556554][T29753] br0: port 1(dummy0) entered blocking state
[ 2131.556741][T29753] br0: port 1(dummy0) entered disabled state
[ 2131.556901][T29753] dummy0: entered allmulticast mode
[ 2131.558453][T29753] dummy0: entered promiscuous mode
[ 2131.586985][T29754] br0: port 1(dummy0) entered blocking state
[ 2131.587244][T29754] br0: port 1(dummy0) entered forwarding state
[ 2133.536127][   T12] dummy0: left allmulticast mode
[ 2133.536946][   T12] dummy0: left promiscuous mode
[ 2133.537179][   T12] br0: port 1(dummy0) entered disabled state