[ 2105.566171][T22869] br0: port 1(dummy0) entered blocking state
[ 2105.566406][T22869] br0: port 1(dummy0) entered disabled state
[ 2105.566630][T22869] dummy0: entered allmulticast mode
[ 2105.567572][T22869] dummy0: entered promiscuous mode
[ 2105.591528][T22870] br0: port 1(dummy0) entered blocking state
[ 2105.591703][T22870] br0: port 1(dummy0) entered forwarding state
[ 2107.569365][   T12] dummy0: left allmulticast mode
[ 2107.570810][   T12] dummy0: left promiscuous mode
[ 2107.571052][   T12] br0: port 1(dummy0) entered disabled state