[ 2103.268781][T21051] br0: port 1(dummy0) entered blocking state
[ 2103.269128][T21051] br0: port 1(dummy0) entered disabled state
[ 2103.269465][T21051] dummy0: entered allmulticast mode
[ 2103.270503][T21051] dummy0: entered promiscuous mode
[ 2103.301808][T21052] br0: port 1(dummy0) entered blocking state
[ 2103.302650][T21052] br0: port 1(dummy0) entered forwarding state
[ 2105.730659][   T72] dummy0: left allmulticast mode
[ 2105.731071][   T72] dummy0: left promiscuous mode
[ 2105.731392][   T72] br0: port 1(dummy0) entered disabled state