[ 2091.969289][ T5956] br0: port 1(dummy0) entered blocking state
[ 2091.969541][ T5956] br0: port 1(dummy0) entered disabled state
[ 2091.969758][ T5956] dummy0: entered allmulticast mode
[ 2091.970840][ T5956] dummy0: entered promiscuous mode
[ 2091.995420][ T5957] br0: port 1(dummy0) entered blocking state
[ 2091.995696][ T5957] br0: port 1(dummy0) entered forwarding state
[ 2093.940813][   T12] dummy0: left allmulticast mode
[ 2093.941092][   T12] dummy0: left promiscuous mode
[ 2093.941287][   T12] br0: port 1(dummy0) entered disabled state