[ 1774.798250] br0: port 1(dummy0) entered blocking state
[ 1774.798296] br0: port 1(dummy0) entered disabled state
[ 1774.798331] dummy0: entered allmulticast mode
[ 1774.798382] dummy0: entered promiscuous mode
[ 1774.801170] br0: port 1(dummy0) entered blocking state
[ 1774.801233] br0: port 1(dummy0) entered forwarding state
[ 1774.996311] dummy0: left allmulticast mode
[ 1774.996342] dummy0: left promiscuous mode
[ 1774.996370] br0: port 1(dummy0) entered disabled state