[ 1739.570319] br0: port 1(dummy0) entered blocking state
[ 1739.570357] br0: port 1(dummy0) entered disabled state
[ 1739.570390] dummy0: entered allmulticast mode
[ 1739.570446] dummy0: entered promiscuous mode
[ 1739.573819] br0: port 1(dummy0) entered blocking state
[ 1739.573885] br0: port 1(dummy0) entered forwarding state
[ 1739.794438] dummy0: left allmulticast mode
[ 1739.794468] dummy0: left promiscuous mode
[ 1739.794499] br0: port 1(dummy0) entered disabled state