[ 1626.224003] br0: port 1(dummy0) entered blocking state
[ 1626.224045] br0: port 1(dummy0) entered disabled state
[ 1626.224081] dummy0: entered allmulticast mode
[ 1626.224135] dummy0: entered promiscuous mode
[ 1626.226669] br0: port 1(dummy0) entered blocking state
[ 1626.226731] br0: port 1(dummy0) entered forwarding state
[ 1626.407329] dummy0: left allmulticast mode
[ 1626.407392] dummy0: left promiscuous mode
[ 1626.407468] br0: port 1(dummy0) entered disabled state