[ 1741.770589] br0: port 1(dummy0) entered blocking state
[ 1741.770636] br0: port 1(dummy0) entered disabled state
[ 1741.770676] dummy0: entered allmulticast mode
[ 1741.770735] dummy0: entered promiscuous mode
[ 1741.774164] br0: port 1(dummy0) entered blocking state
[ 1741.774196] br0: port 1(dummy0) entered forwarding state
[ 1742.037966] dummy0: left allmulticast mode
[ 1742.037997] dummy0: left promiscuous mode
[ 1742.038025] br0: port 1(dummy0) entered disabled state