[ 1844.433408] br0: port 1(dummy0) entered blocking state
[ 1844.433485] br0: port 1(dummy0) entered disabled state
[ 1844.433553] dummy0: entered allmulticast mode
[ 1844.433636] dummy0: entered promiscuous mode
[ 1844.437166] br0: port 1(dummy0) entered blocking state
[ 1844.437198] br0: port 1(dummy0) entered forwarding state
[ 1844.684782] dummy0: left allmulticast mode
[ 1844.684818] dummy0: left promiscuous mode
[ 1844.684851] br0: port 1(dummy0) entered disabled state