[ 2304.823254] br0: port 1(dummy0) entered blocking state
[ 2304.823612] br0: port 1(dummy0) entered disabled state
[ 2304.824053] device dummy0 entered promiscuous mode
[ 2304.871915] br0: port 1(dummy0) entered blocking state
[ 2304.872269] br0: port 1(dummy0) entered forwarding state
[ 2305.051748] br0: port 1(dummy0) entered disabled state
[ 2305.129187] device dummy0 left promiscuous mode
[ 2305.129541] br0: port 1(dummy0) entered disabled state