" add-flows SWITCH FILE add flows from FILE\n"
" mod-flows SWITCH FLOW modify actions of matching FLOWs\n"
" del-flows SWITCH [FLOW] delete matching FLOWs\n"
+ " replace-flows SWITCH FILE replace flows with those in FILE\n"
" monitor SWITCH [MISSLEN] print packets received from SWITCH\n"
"\nFor OpenFlow switches and controllers:\n"
" probe VCONN probe whether VCONN is up\n"