[ 1780.080999] br0: port 1(dummy0) entered blocking state
[ 1780.081048] br0: port 1(dummy0) entered disabled state
[ 1780.081091] dummy0: entered allmulticast mode
[ 1780.081151] dummy0: entered promiscuous mode
[ 1780.084926] br0: port 1(dummy0) entered blocking state
[ 1780.084964] br0: port 1(dummy0) entered forwarding state
[ 1780.359808] dummy0: left allmulticast mode
[ 1780.359849] dummy0: left promiscuous mode
[ 1780.359884] br0: port 1(dummy0) entered disabled state