[ 1926.451358] br0: port 1(dummy0) entered blocking state
[ 1926.451394] br0: port 1(dummy0) entered disabled state
[ 1926.451413] dummy0: entered allmulticast mode
[ 1926.451451] dummy0: entered promiscuous mode
[ 1926.454583] br0: port 1(dummy0) entered blocking state
[ 1926.454605] br0: port 1(dummy0) entered forwarding state
[ 1926.695272] dummy0: left allmulticast mode
[ 1926.695298] dummy0: left promiscuous mode
[ 1926.695318] br0: port 1(dummy0) entered disabled state