[ 1782.654929] br0: port 1(dummy0) entered blocking state
[ 1782.655010] br0: port 1(dummy0) entered disabled state
[ 1782.655080] dummy0: entered allmulticast mode
[ 1782.655170] dummy0: entered promiscuous mode
[ 1782.658777] br0: port 1(dummy0) entered blocking state
[ 1782.658813] br0: port 1(dummy0) entered forwarding state
[ 1782.910680] dummy0: left allmulticast mode
[ 1782.910747] dummy0: left promiscuous mode
[ 1782.910875] br0: port 1(dummy0) entered disabled state