[ 2071.489785][ T6173] br0: port 1(dummy0) entered blocking state
[ 2071.489993][ T6173] br0: port 1(dummy0) entered disabled state
[ 2071.490204][ T6173] dummy0: entered allmulticast mode
[ 2071.491192][ T6173] dummy0: entered promiscuous mode
[ 2071.515061][ T6174] br0: port 1(dummy0) entered blocking state
[ 2071.515337][ T6174] br0: port 1(dummy0) entered forwarding state
[ 2073.586825][   T70] dummy0: left allmulticast mode
[ 2073.587146][   T70] dummy0: left promiscuous mode
[ 2073.587364][   T70] br0: port 1(dummy0) entered disabled state