[ 1669.960020] br0: port 1(dummy0) entered blocking state
[ 1669.960055] br0: port 1(dummy0) entered disabled state
[ 1669.960094] dummy0: entered allmulticast mode
[ 1669.960141] dummy0: entered promiscuous mode
[ 1669.962968] br0: port 1(dummy0) entered blocking state
[ 1669.963034] br0: port 1(dummy0) entered forwarding state
[ 1670.147017] dummy0: left allmulticast mode
[ 1670.147047] dummy0: left promiscuous mode
[ 1670.147076] br0: port 1(dummy0) entered disabled state