[ 1763.770487] br0: port 1(dummy0) entered blocking state
[ 1763.770525] br0: port 1(dummy0) entered disabled state
[ 1763.770559] dummy0: entered allmulticast mode
[ 1763.770618] dummy0: entered promiscuous mode
[ 1763.773366] br0: port 1(dummy0) entered blocking state
[ 1763.773426] br0: port 1(dummy0) entered forwarding state
[ 1763.952883] dummy0: left allmulticast mode
[ 1763.952919] dummy0: left promiscuous mode
[ 1763.952952] br0: port 1(dummy0) entered disabled state