[ 2056.541915][T18285] br0: port 1(dummy0) entered blocking state
[ 2056.542170][T18285] br0: port 1(dummy0) entered disabled state
[ 2056.542396][T18285] dummy0: entered allmulticast mode
[ 2056.543370][T18285] dummy0: entered promiscuous mode
[ 2056.569230][T18286] br0: port 1(dummy0) entered blocking state
[ 2056.569779][T18286] br0: port 1(dummy0) entered forwarding state
[ 2058.623809][   T12] dummy0: left allmulticast mode
[ 2058.624188][   T12] dummy0: left promiscuous mode
[ 2058.624407][   T12] br0: port 1(dummy0) entered disabled state