[ 1782.895968] br0: port 1(dummy0) entered blocking state
[ 1782.896066] br0: port 1(dummy0) entered disabled state
[ 1782.896141] dummy0: entered allmulticast mode
[ 1782.896230] dummy0: entered promiscuous mode
[ 1782.900034] br0: port 1(dummy0) entered blocking state
[ 1782.900074] br0: port 1(dummy0) entered forwarding state
[ 1783.187252] dummy0: left allmulticast mode
[ 1783.187289] dummy0: left promiscuous mode
[ 1783.187351] br0: port 1(dummy0) entered disabled state