[ 1655.579330] br0: port 1(dummy0) entered blocking state
[ 1655.579369] br0: port 1(dummy0) entered disabled state
[ 1655.579402] dummy0: entered allmulticast mode
[ 1655.579450] dummy0: entered promiscuous mode
[ 1655.582170] br0: port 1(dummy0) entered blocking state
[ 1655.582202] br0: port 1(dummy0) entered forwarding state
[ 1655.759249] dummy0: left allmulticast mode
[ 1655.759282] dummy0: left promiscuous mode
[ 1655.759310] br0: port 1(dummy0) entered disabled state