+ # 4b. deploy E-LAN links
+ base = 10
+ for link in elan_fwd_links:
+ # generate lan ip address
+ ip = 1
+ for intf in link["connection_points_reference"]:
+ ip_address = generate_lan_string("10.0", base, subnet_size=24, ip=ip)
+ vnf_id, intf_name = intf.split(":")
+ if vnf_id in self.sap_identifiers:
+ src_docker_name = "{0}_{1}".format(vnf_id, intf_name)
+ vnf_id = src_docker_name
+ vnf_name = vnf_id2vnf_name[vnf_id]
+ LOG.debug(
+ "Setting up E-LAN link. %s(%s:%s) -> %s" % (
+ vnf_name, vnf_id, intf_name, ip_address))
+
+ if vnf_name in self.vnfds:
+ # re-configure the VNFs IP assignment and ensure that a new subnet is used for each E-LAN
+ # E-LAN relies on the learning switch capability of Ryu which has to be turned on in the topology
+ # (DCNetwork(controller=RemoteController, enable_learning=True)), so no explicit chaining is necessary.
+ vnfi = self._get_vnf_instance(instance_uuid, vnf_name)
+ if vnfi is not None:
+ self._vnf_reconfigure_network(vnfi, intf_name, ip_address)
+ # increase for the next ip address on this E-LAN
+ ip += 1
+ # increase the base ip address for the next E-LAN
+ base += 1
+
+ # 5. run the emulator specific entrypoint scripts in the VNFIs of this service instance