[ 1634.326859] br0: port 1(dummy0) entered blocking state
[ 1634.326915] br0: port 1(dummy0) entered disabled state
[ 1634.326967] dummy0: entered allmulticast mode
[ 1634.327042] dummy0: entered promiscuous mode
[ 1634.329853] br0: port 1(dummy0) entered blocking state
[ 1634.329901] br0: port 1(dummy0) entered forwarding state
[ 1634.522789] dummy0: left allmulticast mode
[ 1634.522841] dummy0: left promiscuous mode
[ 1634.522892] br0: port 1(dummy0) entered disabled state