[ 1700.818775] br0: port 1(dummy0) entered blocking state
[ 1700.818813] br0: port 1(dummy0) entered disabled state
[ 1700.818849] dummy0: entered allmulticast mode
[ 1700.818895] dummy0: entered promiscuous mode
[ 1700.821619] br0: port 1(dummy0) entered blocking state
[ 1700.821682] br0: port 1(dummy0) entered forwarding state
[ 1701.000634] dummy0: left allmulticast mode
[ 1701.000720] dummy0: left promiscuous mode
[ 1701.000779] br0: port 1(dummy0) entered disabled state