[ 1697.541247] br0: port 1(dummy0) entered blocking state
[ 1697.541284] br0: port 1(dummy0) entered disabled state
[ 1697.541316] dummy0: entered allmulticast mode
[ 1697.541368] dummy0: entered promiscuous mode
[ 1697.544076] br0: port 1(dummy0) entered blocking state
[ 1697.544113] br0: port 1(dummy0) entered forwarding state
[ 1697.735510] dummy0: left allmulticast mode
[ 1697.735569] dummy0: left promiscuous mode
[ 1697.735627] br0: port 1(dummy0) entered disabled state