+class RoundRobinDcPlacement(object):
+ """
+ Placement: Distribute VNFs across all available DCs in a round robin fashion.
+ """
+ def place(self, nsd, vnfds, dcs):
+ c = 0
+ dcs_list = list(dcs.itervalues())
+ for name, vnfd in vnfds.iteritems():
+ vnfd["dc"] = dcs_list[c % len(dcs_list)]
+ c += 1 # inc. c to use next DC
+
+
+
+