[ 1831.769688][T14693] br0: port 1(dummy0) entered blocking state
[ 1831.769866][T14693] br0: port 1(dummy0) entered disabled state
[ 1831.770019][T14693] dummy0: entered allmulticast mode
[ 1831.770583][T14693] dummy0: entered promiscuous mode
[ 1831.787877][T14694] br0: port 1(dummy0) entered blocking state
[ 1831.787998][T14694] br0: port 1(dummy0) entered forwarding state
[ 1832.986246][   T12] dummy0: left allmulticast mode
[ 1832.986415][   T12] dummy0: left promiscuous mode
[ 1832.986622][   T12] br0: port 1(dummy0) entered disabled state