[ 1635.604409] br0: port 1(dummy0) entered blocking state
[ 1635.604458] br0: port 1(dummy0) entered disabled state
[ 1635.604496] dummy0: entered allmulticast mode
[ 1635.604548] dummy0: entered promiscuous mode
[ 1635.608551] br0: port 1(dummy0) entered blocking state
[ 1635.608590] br0: port 1(dummy0) entered forwarding state
[ 1635.839617] dummy0: left allmulticast mode
[ 1635.839722] dummy0: left promiscuous mode
[ 1635.839788] br0: port 1(dummy0) entered disabled state