[ 1762.224485] br0: port 1(dummy0) entered blocking state
[ 1762.224541] br0: port 1(dummy0) entered disabled state
[ 1762.224567] dummy0: entered allmulticast mode
[ 1762.224612] dummy0: entered promiscuous mode
[ 1762.229074] br0: port 1(dummy0) entered blocking state
[ 1762.229115] br0: port 1(dummy0) entered forwarding state
[ 1762.538104] dummy0: left allmulticast mode
[ 1762.538189] dummy0: left promiscuous mode
[ 1762.538235] br0: port 1(dummy0) entered disabled state