[ 1622.912824] br0: port 1(dummy0) entered blocking state
[ 1622.912868] br0: port 1(dummy0) entered disabled state
[ 1622.912902] dummy0: entered allmulticast mode
[ 1622.912962] dummy0: entered promiscuous mode
[ 1622.915931] br0: port 1(dummy0) entered blocking state
[ 1622.916003] br0: port 1(dummy0) entered forwarding state
[ 1623.116097] dummy0: left allmulticast mode
[ 1623.116133] dummy0: left promiscuous mode
[ 1623.116161] br0: port 1(dummy0) entered disabled state