[ 1632.375745] br0: port 1(dummy0) entered blocking state
[ 1632.375787] br0: port 1(dummy0) entered disabled state
[ 1632.375820] dummy0: entered allmulticast mode
[ 1632.375874] dummy0: entered promiscuous mode
[ 1632.378749] br0: port 1(dummy0) entered blocking state
[ 1632.378784] br0: port 1(dummy0) entered forwarding state
[ 1632.569044] dummy0: left allmulticast mode
[ 1632.569122] dummy0: left promiscuous mode
[ 1632.569400] br0: port 1(dummy0) entered disabled state