[ 1715.624737] br0: port 1(dummy0) entered blocking state
[ 1715.624811] br0: port 1(dummy0) entered disabled state
[ 1715.624884] dummy0: entered allmulticast mode
[ 1715.624978] dummy0: entered promiscuous mode
[ 1715.627903] br0: port 1(dummy0) entered blocking state
[ 1715.627933] br0: port 1(dummy0) entered forwarding state
[ 1715.832060] dummy0: left allmulticast mode
[ 1715.832090] dummy0: left promiscuous mode
[ 1715.832119] br0: port 1(dummy0) entered disabled state