[ 1762.538764] br0: port 1(dummy0) entered blocking state
[ 1762.538794] br0: port 1(dummy0) entered disabled state
[ 1762.538818] dummy0: entered allmulticast mode
[ 1762.538856] dummy0: entered promiscuous mode
[ 1762.542212] br0: port 1(dummy0) entered blocking state
[ 1762.542233] br0: port 1(dummy0) entered forwarding state
[ 1762.803914] dummy0: left allmulticast mode
[ 1762.803940] dummy0: left promiscuous mode
[ 1762.803961] br0: port 1(dummy0) entered disabled state