[ 1728.076624] br0: port 1(dummy0) entered blocking state
[ 1728.076663] br0: port 1(dummy0) entered disabled state
[ 1728.076711] dummy0: entered allmulticast mode
[ 1728.076776] dummy0: entered promiscuous mode
[ 1728.079352] br0: port 1(dummy0) entered blocking state
[ 1728.079422] br0: port 1(dummy0) entered forwarding state
[ 1728.261577] dummy0: left allmulticast mode
[ 1728.261677] dummy0: left promiscuous mode
[ 1728.261754] br0: port 1(dummy0) entered disabled state