[ 1783.876815] br0: port 1(dummy0) entered blocking state
[ 1783.876856] br0: port 1(dummy0) entered disabled state
[ 1783.876901] dummy0: entered allmulticast mode
[ 1783.876960] dummy0: entered promiscuous mode
[ 1783.880286] br0: port 1(dummy0) entered blocking state
[ 1783.880317] br0: port 1(dummy0) entered forwarding state
[ 1784.121386] dummy0: left allmulticast mode
[ 1784.121457] dummy0: left promiscuous mode
[ 1784.121495] br0: port 1(dummy0) entered disabled state