[ 1656.496068] br0: port 1(dummy0) entered blocking state
[ 1656.496142] br0: port 1(dummy0) entered disabled state
[ 1656.496214] dummy0: entered allmulticast mode
[ 1656.496323] dummy0: entered promiscuous mode
[ 1656.499080] br0: port 1(dummy0) entered blocking state
[ 1656.499112] br0: port 1(dummy0) entered forwarding state
[ 1656.685865] dummy0: left allmulticast mode
[ 1656.685903] dummy0: left promiscuous mode
[ 1656.685986] br0: port 1(dummy0) entered disabled state