[ 1716.031705] br0: port 1(dummy0) entered blocking state
[ 1716.031749] br0: port 1(dummy0) entered disabled state
[ 1716.031785] dummy0: entered allmulticast mode
[ 1716.031847] dummy0: entered promiscuous mode
[ 1716.034846] br0: port 1(dummy0) entered blocking state
[ 1716.034919] br0: port 1(dummy0) entered forwarding state
[ 1716.249093] dummy0: left allmulticast mode
[ 1716.249133] dummy0: left promiscuous mode
[ 1716.249167] br0: port 1(dummy0) entered disabled state