for connected_sw in self.DCNetwork_graph.neighbors(vnf_src_name):
link_dict = self.DCNetwork_graph[vnf_src_name][connected_sw]
for link in link_dict:
#logging.info("{0},{1}".format(link_dict[link],vnf_source_interface))
for connected_sw in self.DCNetwork_graph.neighbors(vnf_src_name):
link_dict = self.DCNetwork_graph[vnf_src_name][connected_sw]
for link in link_dict:
#logging.info("{0},{1}".format(link_dict[link],vnf_source_interface))