[ 1886.376493] br0: port 1(dummy0) entered blocking state
[ 1886.376518] br0: port 1(dummy0) entered disabled state
[ 1886.376542] dummy0: entered allmulticast mode
[ 1886.376577] dummy0: entered promiscuous mode
[ 1886.379768] br0: port 1(dummy0) entered blocking state
[ 1886.379791] br0: port 1(dummy0) entered forwarding state
[ 1886.624829] dummy0: left allmulticast mode
[ 1886.624879] dummy0: left promiscuous mode
[ 1886.624964] br0: port 1(dummy0) entered disabled state