[ 1751.398028] br0: port 1(dummy0) entered blocking state
[ 1751.398077] br0: port 1(dummy0) entered disabled state
[ 1751.398114] dummy0: entered allmulticast mode
[ 1751.398166] dummy0: entered promiscuous mode
[ 1751.401756] br0: port 1(dummy0) entered blocking state
[ 1751.401816] br0: port 1(dummy0) entered forwarding state
[ 1751.670992] dummy0: left allmulticast mode
[ 1751.671034] dummy0: left promiscuous mode
[ 1751.671065] br0: port 1(dummy0) entered disabled state