[ 1587.636028] br0: port 1(dummy0) entered blocking state
[ 1587.636070] br0: port 1(dummy0) entered disabled state
[ 1587.636107] dummy0: entered allmulticast mode
[ 1587.636161] dummy0: entered promiscuous mode
[ 1587.639038] br0: port 1(dummy0) entered blocking state
[ 1587.639100] br0: port 1(dummy0) entered forwarding state
[ 1587.831365] dummy0: left allmulticast mode
[ 1587.831398] dummy0: left promiscuous mode
[ 1587.831427] br0: port 1(dummy0) entered disabled state