[ 2383.832355][T17981] br0: port 1(dummy0) entered blocking state
[ 2383.832669][T17981] br0: port 1(dummy0) entered disabled state
[ 2383.832954][T17981] dummy0: entered allmulticast mode
[ 2383.834526][T17981] dummy0: entered promiscuous mode
[ 2383.861667][T17982] br0: port 1(dummy0) entered blocking state
[ 2383.862008][T17982] br0: port 1(dummy0) entered forwarding state
[ 2386.299147][   T12] dummy0: left allmulticast mode
[ 2386.299515][   T12] dummy0: left promiscuous mode
[ 2386.299919][   T12] br0: port 1(dummy0) entered disabled state