-# - controller (e.g. my test can be done only with controller OpenContrail)
-# possible values: none, odl, onos, opencontrail
+# - the scenario: it described a specif installation
+# os-<controller>-<nfvfeature>-<mode>[-<extrastuff>]
+# With parameters:
+# controller=(nosdn|odl_l3|odl_l2|onos|ocl)
+# No odl_l3 today
+# nfvfeature=(kvm|ovs|dpdk|nofeature)
+# '_' list separated.
+# mode=(ha|noha)
+# extrastuff=(none)
+# Optional field - Not used today#
+#
+# ref:https://gerrit.opnfv.org/gerrit/#/c/6323/7/jjb/joid/joid-deploy.sh (L72-82)
+# e.g my test is only possible with OVS 2.3.2 on odl