[ 1976.790663][T16347] br0: port 1(dummy0) entered blocking state
[ 1976.791368][T16347] br0: port 1(dummy0) entered disabled state
[ 1976.791533][T16347] dummy0: entered allmulticast mode
[ 1976.792396][T16347] dummy0: entered promiscuous mode
[ 1976.822258][T16348] br0: port 1(dummy0) entered blocking state
[ 1976.822549][T16348] br0: port 1(dummy0) entered forwarding state
[ 1978.765791][   T12] dummy0: left allmulticast mode
[ 1978.765939][   T12] dummy0: left promiscuous mode
[ 1978.766137][   T12] br0: port 1(dummy0) entered disabled state