[ 1885.705766] br0: port 1(dummy0) entered blocking state
[ 1885.705843] br0: port 1(dummy0) entered disabled state
[ 1885.705910] dummy0: entered allmulticast mode
[ 1885.705994] dummy0: entered promiscuous mode
[ 1885.710086] br0: port 1(dummy0) entered blocking state
[ 1885.710119] br0: port 1(dummy0) entered forwarding state
[ 1886.006404] dummy0: left allmulticast mode
[ 1886.006448] dummy0: left promiscuous mode
[ 1886.006535] br0: port 1(dummy0) entered disabled state