[ 1903.342325][T16153] br0: port 1(dummy0) entered blocking state
[ 1903.342562][T16153] br0: port 1(dummy0) entered disabled state
[ 1903.342793][T16153] dummy0: entered allmulticast mode
[ 1903.343828][T16153] dummy0: entered promiscuous mode
[ 1903.366684][T16154] br0: port 1(dummy0) entered blocking state
[ 1903.367049][T16154] br0: port 1(dummy0) entered forwarding state
[ 1905.301024][   T12] dummy0: left allmulticast mode
[ 1905.301943][   T12] dummy0: left promiscuous mode
[ 1905.302172][   T12] br0: port 1(dummy0) entered disabled state