[ 2056.747228][T10406] br0: port 1(dummy0) entered blocking state
[ 2056.747427][T10406] br0: port 1(dummy0) entered disabled state
[ 2056.747603][T10406] dummy0: entered allmulticast mode
[ 2056.748646][T10406] dummy0: entered promiscuous mode
[ 2056.776835][T10407] br0: port 1(dummy0) entered blocking state
[ 2056.777077][T10407] br0: port 1(dummy0) entered forwarding state
[ 2058.865978][   T12] dummy0: left allmulticast mode
[ 2058.867161][   T12] dummy0: left promiscuous mode
[ 2058.867462][   T12] br0: port 1(dummy0) entered disabled state