[ 2105.362678][T12968] br0: port 1(dummy0) entered blocking state
[ 2105.362872][T12968] br0: port 1(dummy0) entered disabled state
[ 2105.363037][T12968] dummy0: entered allmulticast mode
[ 2105.363892][T12968] dummy0: entered promiscuous mode
[ 2105.393265][T12969] br0: port 1(dummy0) entered blocking state
[ 2105.393642][T12969] br0: port 1(dummy0) entered forwarding state
[ 2107.381605][   T12] dummy0: left allmulticast mode
[ 2107.381791][   T12] dummy0: left promiscuous mode
[ 2107.382023][   T12] br0: port 1(dummy0) entered disabled state