[ 1777.733332] br0: port 1(dummy0) entered blocking state
[ 1777.733382] br0: port 1(dummy0) entered disabled state
[ 1777.733422] dummy0: entered allmulticast mode
[ 1777.733477] dummy0: entered promiscuous mode
[ 1777.737253] br0: port 1(dummy0) entered blocking state
[ 1777.737324] br0: port 1(dummy0) entered forwarding state
[ 1778.019432] dummy0: left allmulticast mode
[ 1778.019522] dummy0: left promiscuous mode
[ 1778.019617] br0: port 1(dummy0) entered disabled state