[ 2056.415666][ T1010] br0: port 1(dummy0) entered blocking state
[ 2056.415886][ T1010] br0: port 1(dummy0) entered disabled state
[ 2056.416070][ T1010] dummy0: entered allmulticast mode
[ 2056.416976][ T1010] dummy0: entered promiscuous mode
[ 2056.437734][ T1011] br0: port 1(dummy0) entered blocking state
[ 2056.438062][ T1011] br0: port 1(dummy0) entered forwarding state
[ 2058.299367][   T12] dummy0: left allmulticast mode
[ 2058.299668][   T12] dummy0: left promiscuous mode
[ 2058.300013][   T12] br0: port 1(dummy0) entered disabled state