[ 2102.942865][T20643] br0: port 1(dummy0) entered blocking state
[ 2102.943057][T20643] br0: port 1(dummy0) entered disabled state
[ 2102.943225][T20643] dummy0: entered allmulticast mode
[ 2102.944151][T20643] dummy0: entered promiscuous mode
[ 2102.984160][T20644] br0: port 1(dummy0) entered blocking state
[ 2102.984345][T20644] br0: port 1(dummy0) entered forwarding state
[ 2105.898967][   T12] dummy0: left allmulticast mode
[ 2105.899165][   T12] dummy0: left promiscuous mode
[ 2105.900002][   T12] br0: port 1(dummy0) entered disabled state