[ 1626.017721] br0: port 1(dummy0) entered blocking state
[ 1626.017763] br0: port 1(dummy0) entered disabled state
[ 1626.017795] dummy0: entered allmulticast mode
[ 1626.017847] dummy0: entered promiscuous mode
[ 1626.020540] br0: port 1(dummy0) entered blocking state
[ 1626.020576] br0: port 1(dummy0) entered forwarding state
[ 1626.231742] dummy0: left allmulticast mode
[ 1626.231804] dummy0: left promiscuous mode
[ 1626.231865] br0: port 1(dummy0) entered disabled state