[ 1805.761416] br0: port 1(dummy0) entered blocking state
[ 1805.761458] br0: port 1(dummy0) entered disabled state
[ 1805.761497] dummy0: entered allmulticast mode
[ 1805.761544] dummy0: entered promiscuous mode
[ 1805.765117] br0: port 1(dummy0) entered blocking state
[ 1805.765151] br0: port 1(dummy0) entered forwarding state
[ 1806.037361] dummy0: left allmulticast mode
[ 1806.037390] dummy0: left promiscuous mode
[ 1806.037418] br0: port 1(dummy0) entered disabled state