[ 1714.444008] br0: port 1(dummy0) entered blocking state
[ 1714.444087] br0: port 1(dummy0) entered disabled state
[ 1714.444153] dummy0: entered allmulticast mode
[ 1714.444240] dummy0: entered promiscuous mode
[ 1714.447392] br0: port 1(dummy0) entered blocking state
[ 1714.447424] br0: port 1(dummy0) entered forwarding state
[ 1714.637086] dummy0: left allmulticast mode
[ 1714.637119] dummy0: left promiscuous mode
[ 1714.637148] br0: port 1(dummy0) entered disabled state