[ 2089.387386][T18000] br0: port 1(dummy0) entered blocking state
[ 2089.387677][T18000] br0: port 1(dummy0) entered disabled state
[ 2089.387962][T18000] dummy0: entered allmulticast mode
[ 2089.389055][T18000] dummy0: entered promiscuous mode
[ 2089.421480][T18001] br0: port 1(dummy0) entered blocking state
[ 2089.422170][T18001] br0: port 1(dummy0) entered forwarding state
[ 2091.870879][   T12] dummy0: left allmulticast mode
[ 2091.872174][   T12] dummy0: left promiscuous mode
[ 2091.872541][   T12] br0: port 1(dummy0) entered disabled state