[ 1906.358096] br0: port 1(dummy0) entered blocking state
[ 1906.358167] br0: port 1(dummy0) entered disabled state
[ 1906.358231] dummy0: entered allmulticast mode
[ 1906.358315] dummy0: entered promiscuous mode
[ 1906.361837] br0: port 1(dummy0) entered blocking state
[ 1906.361877] br0: port 1(dummy0) entered forwarding state
[ 1906.624309] dummy0: left allmulticast mode
[ 1906.624345] dummy0: left promiscuous mode
[ 1906.624376] br0: port 1(dummy0) entered disabled state