[ 1861.205365] br0: port 1(dummy0) entered blocking state
[ 1861.205415] br0: port 1(dummy0) entered disabled state
[ 1861.205449] dummy0: entered allmulticast mode
[ 1861.205511] dummy0: entered promiscuous mode
[ 1861.209370] br0: port 1(dummy0) entered blocking state
[ 1861.209406] br0: port 1(dummy0) entered forwarding state
[ 1861.482791] dummy0: left allmulticast mode
[ 1861.482832] dummy0: left promiscuous mode
[ 1861.482866] br0: port 1(dummy0) entered disabled state