[ 1611.908871] br0: port 1(dummy0) entered blocking state
[ 1611.908913] br0: port 1(dummy0) entered disabled state
[ 1611.908946] dummy0: entered allmulticast mode
[ 1611.908998] dummy0: entered promiscuous mode
[ 1611.911834] br0: port 1(dummy0) entered blocking state
[ 1611.911897] br0: port 1(dummy0) entered forwarding state
[ 1612.101147] dummy0: left allmulticast mode
[ 1612.101188] dummy0: left promiscuous mode
[ 1612.101219] br0: port 1(dummy0) entered disabled state