[ 1991.923568][ T5062] br0: port 1(dummy0) entered blocking state
[ 1991.923757][ T5062] br0: port 1(dummy0) entered disabled state
[ 1991.923925][ T5062] dummy0: entered allmulticast mode
[ 1991.924839][ T5062] dummy0: entered promiscuous mode
[ 1991.958093][ T5063] br0: port 1(dummy0) entered blocking state
[ 1991.958292][ T5063] br0: port 1(dummy0) entered forwarding state
[ 1993.977461][   T12] dummy0: left allmulticast mode
[ 1993.977680][   T12] dummy0: left promiscuous mode
[ 1993.977931][   T12] br0: port 1(dummy0) entered disabled state