[ 1811.655056] br0: port 1(dummy0) entered blocking state
[ 1811.655104] br0: port 1(dummy0) entered disabled state
[ 1811.655138] dummy0: entered allmulticast mode
[ 1811.655189] dummy0: entered promiscuous mode
[ 1811.658662] br0: port 1(dummy0) entered blocking state
[ 1811.658693] br0: port 1(dummy0) entered forwarding state
[ 1811.918365] dummy0: left allmulticast mode
[ 1811.918411] dummy0: left promiscuous mode
[ 1811.918444] br0: port 1(dummy0) entered disabled state