[ 1741.850327] br0: port 1(dummy0) entered blocking state
[ 1741.850371] br0: port 1(dummy0) entered disabled state
[ 1741.850413] dummy0: entered allmulticast mode
[ 1741.850478] dummy0: entered promiscuous mode
[ 1741.853334] br0: port 1(dummy0) entered blocking state
[ 1741.853371] br0: port 1(dummy0) entered forwarding state
[ 1742.048121] dummy0: left allmulticast mode
[ 1742.048154] dummy0: left promiscuous mode
[ 1742.048185] br0: port 1(dummy0) entered disabled state