+make [init+all]
+ shortcut for 'make init all'
+make init
+ create util subdirs needed by this tool
+make all
+ initialize the whole topology on all nodes
+make showslice
+ show SLICE as defined in conf.mk
+make shownodes
+make showhostnames
+make showips
+make showlinks
+ show nodes and links declared in conf.mk in various formats
+make sshchecks
+make ovsversions
+ try out ssh connectivity to slivers in the slice, or show installed ovs version
+make dbs
+ initialize ovs db in all slivers
+make switchs
+ start ovs switch in all slivers
+make start
+ shortcut for make dbs switchs
+make stop
+ stop all ovs switch in all slivers
+make status
+ list status of db and switch processes in all slivers
+make bridges
+ create a bridge interface linked to tap devce in each sliver
+====================
+make showcontrollers
+ show how OF controllers are configured from conf.mk
+ use CONTROLLER_<nodeid> if set, or CONTROLLER as a default otherwise
+make controllers
+ configure the various switches so they use the configured controllers
+
+====================
+make update (devel)
+ push a new version of sliver-ovs into the slivers
+ use SLIVER_OVS that should point to the local new version