Merge branch 'feat/3-challenge-3-l2vpn-support' into 'develop' (7a3934db) · Commits · TFS / nsc

src/Constants.py

+6 −2

Original line number	Diff line number	Diff line
		@@ -12,7 +12,7 @@
		# See the License for the specific language governing permissions and
		# limitations under the License.

		# This file is an original contribution from Telefonica Innovación Digital S.L.
		# This file includes original contributions from Telefonica Innovación Digital S.L.

		import logging, os, json

		@@ -48,12 +48,16 @@ PCE_EXTERNAL = False
		# Controller Flags
		# If True, config is not sent to controllers
		DUMMY_MODE = False

		#####TERAFLOW#####
		# Teraflow IP
		TFS_IP = ips.get('TFS_IP')
		UPLOAD_TYPE = "NBI" # "WEBUI" or "NBI"
		UPLOAD_TYPE = "WEBUI" # "WEBUI" or "NBI"
		NBI_L2_PATH = "restconf/data/ietf-l2vpn-svc:l2vpn-svc/vpn-services"
		# Flag to determine if additional L2VPN configuration support is required for deploying L2VPNs with path selection
		TFS_L2VPN_SUPPORT = False

		#####IXIA#####
		# IXIA NEII IP
		IXIA_IP = ips.get('IXIA_IP')

src/network_slice_controller.py

+64 −35

Original line number	Diff line number	Diff line
		@@ -302,7 +302,9 @@ class NSController:
		if UPLOAD_TYPE == "WEBUI":
		response = tfs_connector().webui_post(self.tfs_ip, requests)
		elif UPLOAD_TYPE == "NBI":
		response = tfs_connector().nbi_post(self.tfs_ip, requests, self.path)
		for intent in requests["services"]:
		# Send each separate NBI request
		response = tfs_connector().nbi_post(self.tfs_ip, intent, self.path)

		if not response.ok:
		return self.__send_response(False, code=response.status_code, message=f"Teraflow upload failed. Response: {response.text}")
		@@ -855,9 +857,27 @@ class NSController:

		# Extract QoS Profile from intent
		QoSProfile = ietf_intent["ietf-network-slice-service:network-slice-services"]["slo-sle-templates"]["slo-sle-template"][0]["id"]

		vlan_value = 0

		self.answer[self.subnet]["QoS Requirements"] = []

		# Populate response with QoS requirements and VLAN from intent
		for i, constraint in enumerate(ietf_intent["ietf-network-slice-service:network-slice-services"]["slo-sle-templates"]["slo-sle-template"][0]["slo-policy"]["metric-bound"]):
		bound = ietf_intent["ietf-network-slice-service:network-slice-services"]["slo-sle-templates"]["slo-sle-template"][0]["slo-policy"]["metric-bound"][i]["bound"]
		metric_type = ietf_intent["ietf-network-slice-service:network-slice-services"]["slo-sle-templates"]["slo-sle-template"][0]["slo-policy"]["metric-bound"][i]["metric-type"]
		metric_unit = ietf_intent["ietf-network-slice-service:network-slice-services"]["slo-sle-templates"]["slo-sle-template"][0]["slo-policy"]["metric-bound"][i]["metric-unit"]
		service_constraint ={
		"custom": {
		"constraint_type": f"{metric_type}[{metric_unit}]",
		"constraint_value": f"{bound}"
		}
		}
		self.answer[self.subnet]["QoS Requirements"].append(service_constraint["custom"])

		vlan_value = ietf_intent["ietf-network-slice-service:network-slice-services"]["slice-service"][0]["sdps"]["sdp"][0]["service-match-criteria"]["match-criterion"][0]["value"]
		self.answer[self.subnet]["VLAN"] = vlan_value

		if UPLOAD_TYPE == "WEBUI":
		# Load L2VPN service template
		self.__load_template(2, os.path.join(TEMPLATES_PATH, "L2-VPN_template_empty.json"))
		tfs_request = json.loads(str(self.__teraflow_template))["services"][0]
		@@ -870,20 +890,9 @@ class NSController:
		endpoint["device_id"]["device_uuid"]["uuid"] = origin_router_id if endpoint is tfs_request["service_endpoint_ids"][0] else destination_router_id
		endpoint["endpoint_uuid"]["uuid"] = origin_router_if if endpoint is tfs_request["service_endpoint_ids"][0] else destination_router_if

		self.answer[self.subnet]["QoS Requirements"] = []
		# Add service constraints
		for i, constraint in enumerate(ietf_intent["ietf-network-slice-service:network-slice-services"]["slo-sle-templates"]["slo-sle-template"][0]["slo-policy"]["metric-bound"]):
		bound = ietf_intent["ietf-network-slice-service:network-slice-services"]["slo-sle-templates"]["slo-sle-template"][0]["slo-policy"]["metric-bound"][i]["bound"]
		metric_type = ietf_intent["ietf-network-slice-service:network-slice-services"]["slo-sle-templates"]["slo-sle-template"][0]["slo-policy"]["metric-bound"][i]["metric-type"]
		metric_unit = ietf_intent["ietf-network-slice-service:network-slice-services"]["slo-sle-templates"]["slo-sle-template"][0]["slo-policy"]["metric-bound"][i]["metric-unit"]
		service_constraint ={
		"custom": {
		"constraint_type": f"{metric_type}[{metric_unit}]",
		"constraint_value": f"{bound}"
		}
		}
		self.answer[self.subnet]["QoS Requirements"].append(service_constraint["custom"])
		tfs_request["service_constraints"].append(service_constraint)
		for constraint in self.answer[self.subnet]["QoS Requirements"]:
		tfs_request["service_constraints"].append({"custom": constraint})

		# Add configuration rules
		for i, config_rule in enumerate(tfs_request["service_config"]["config_rules"][1:], start=1):
		@@ -900,9 +909,29 @@ class NSController:
		resource_value["ni_name"] = 'ELAN{:s}'.format(str(vlan_value))
		config_rule["custom"]["resource_key"] = f"/device[{router_id}]/endpoint[{router_if}]/settings"

		# Log and store VLAN information
		elif UPLOAD_TYPE == "NBI":

		# Load IETF L2VPN service template
		self.__load_template(2, os.path.join(TEMPLATES_PATH, "ietfL2VPN_template_empty.json"))
		tfs_request = json.loads(str(self.__teraflow_template))

		# Generate service UUID
		full_id = ietf_intent["ietf-network-slice-service:network-slice-services"]["slice-service"][0]["id"]
		uuid_only = full_id.split("slice-service-")[-1]
		tfs_request["ietf-l2vpn-svc:vpn-service"][0]["vpn-id"] = uuid_only

		# Configure service endpoints
		for site in tfs_request["ietf-l2vpn-svc:vpn-service"][0]["site"]:
		if site is tfs_request["ietf-l2vpn-svc:vpn-service"][0]["site"][0]:
		site["site-id"] = origin_router_id
		site["site-location"] = ietf_intent["ietf-network-slice-service:network-slice-services"]["slice-service"][0]["sdps"]["sdp"][0]["node-id"]
		site["site-network-access"]["interface"]["ip-address"] = ietf_intent["ietf-network-slice-service:network-slice-services"]["slice-service"][0]["sdps"]["sdp"][0]["sdp-ip-address"]
		else:
		site["site-id"] = destination_router_id
		site["site-location"] = ietf_intent["ietf-network-slice-service:network-slice-services"]["slice-service"][0]["sdps"]["sdp"][1]["node-id"]
		site["site-network-access"]["interface"]["ip-address"] = ietf_intent["ietf-network-slice-service:network-slice-services"]["slice-service"][0]["sdps"]["sdp"][1]["sdp-ip-address"]

		logging.info(f"L2VPN Intent realized\n")
		self.answer[self.subnet]["VLAN"] = vlan_value
		return tfs_request

		def __tfs_l2vpn_support(self, requests):
		@@ -994,7 +1023,7 @@ class NSController:
		dict: A TeraFlow service request for L3VPN configuration.
		"""
		# Hardcoded router endpoints
		# TODO should be dynamically determined
		# TODO (should be dynamically determined)
		origin_router_id = ietf_intent["ietf-network-slice-service:network-slice-services"]["slice-service"][0]["sdps"]["sdp"][0]["attachment-circuits"]["attachment-circuit"][0]["sdp-peering"]["peer-sap-id"]
		origin_router_if = '0/0/0-GigabitEthernet0/0/0/0'
		destination_router_id = ietf_intent["ietf-network-slice-service:network-slice-services"]["slice-service"][0]["sdps"]["sdp"][1]["attachment-circuits"]["attachment-circuit"][0]["sdp-peering"]["peer-sap-id"]

src/templates/ietfL2VPN_template.json→src/templates/ietfL2VPN_template_empty.json

+7 −9

Original line number	Diff line number	Diff line
		{
		"ietf-l2vpn-svc:vpn-service": [
		{
		"vpn-id": "11327140-7361-41b3-aa45-e84a7fb40be9",
		"vpn-id": "",
		"customer-name": "osm",
		"vpn-svc-type": "vpws",
		"svc-topo": "any-to-any",
		"site": [
		{
		"site-id": "1.1.1.1",
		"site-role": "hub",
		"site-location": "CU-N2",
		"site-id": "",
		"site-location": "",
		"site-network-access": {
		"interface": {
		"ip-address": "10.60.11.3",
		"ip-address": "",
		"encapsulation": "ethernet"
		}
		}
		},
		{
		"site-id": "3.3.3.3",
		"site-role": "spoke",
		"site-location": "AMF-N2",
		"site-id": "",
		"site-location": "",
		"site-network-access": {
		"interface": {
		"ip-address": "10.60.60.105",
		"ip-address": "",
		"encapsulation": "ethernet"
		}
		}

src/templates/ietfL3VPN_template.json

deleted100644 → 0

+0 −184

Original line number	Diff line number	Diff line
		{
		"ietf-l3vpn-svc:l3vpn-svc": {
		"sites": {
		"site": [
		{
		"devices": {
		"device": [
		{
		"device-id": "4.4.4.4",
		"location": "router4"
		}
		]
		},
		"locations": {
		"location": [
		{
		"location-id": "router4"
		}
		]
		},
		"management": {
		"type": "ietf-l3vpn-svc:provider-managed"
		},
		"routing-protocols": {
		"routing-protocol": [
		{
		"static": {
		"cascaded-lan-prefixes": {
		"ipv4-lan-prefixes": [
		{
		"lan": "4.4.4.4/24",
		"lan-tag": "100",
		"next-hop": "2.2.2.2"
		}
		]
		}
		},
		"type": "ietf-l3vpn-svc:static"
		}
		]
		},
		"site-id": "site_router4",
		"site-network-accesses": {
		"site-network-access": [
		{
		"device-reference": "4.4.4.4",
		"ip-connection": {
		"ipv4": {
		"address-allocation-type": "ietf-l3vpn-svc:static-address",
		"addresses": {
		"customer-address": "2.2.2.2",
		"prefix-length": "24",
		"provider-address": "4.4.4.4"
		}
		}
		},
		"service": {
		"qos": {
		"qos-profile": {
		"classes": {
		"class": [
		{
		"bandwidth": {
		"guaranteed-bw-percent": 100
		},
		"class-id": "qos-realtime",
		"direction": "ietf-l3vpn-svc:both",
		"latency": {
		"latency-boundary": 20
		}
		}
		]
		}
		}
		},
		"svc-input-bandwidth": 5000000000,
		"svc-mtu": 1500,
		"svc-output-bandwidth": 1000000000
		},
		"site-network-access-type": "ietf-l3vpn-svc:multipoint",
		"vpn-attachment": {
		"site-role": "ietf-l3vpn-svc:hub-role",
		"vpn-id": "vpn-example"
		}
		}
		]
		}
		},
		{
		"devices": {
		"device": [
		{
		"device-id": "5.5.5.5",
		"location": "router5"
		}
		]
		},
		"locations": {
		"location": [
		{
		"location-id": "router5"
		}
		]
		},
		"management": {
		"type": "ietf-l3vpn-svc:provider-managed"
		},
		"routing-protocols": {
		"routing-protocol": [
		{
		"static": {
		"cascaded-lan-prefixes": {
		"ipv4-lan-prefixes": [
		{
		"lan": "5.5.5.5/24",
		"lan-tag": "200",
		"next-hop": "2.2.2.2"
		}
		]
		}
		},
		"type": "ietf-l3vpn-svc:static"
		}
		]
		},
		"site-id": "site_router5",
		"site-network-accesses": {
		"site-network-access": [
		{
		"device-reference": "5.5.5.5",
		"ip-connection": {
		"ipv4": {
		"address-allocation-type": "ietf-l3vpn-svc:static-address",
		"addresses": {
		"customer-address": "2.2.2.2",
		"prefix-length": "24",
		"provider-address": "5.5.5.5"
		}
		}
		},
		"service": {
		"qos": {
		"qos-profile": {
		"classes": {
		"class": [
		{
		"bandwidth": {
		"guaranteed-bw-percent": 100
		},
		"class-id": "qos-realtime",
		"direction": "ietf-l3vpn-svc:both",
		"latency": {
		"latency-boundary": 10
		}
		}
		]
		}
		}
		},
		"svc-input-bandwidth": 1000000000,
		"svc-mtu": 1500,
		"svc-output-bandwidth": 5000000000
		},
		"site-network-access-type": "ietf-l3vpn-svc:multipoint",
		"vpn-attachment": {
		"site-role": "ietf-l3vpn-svc:spoke-role",
		"vpn-id": "vpn-example"
		}
		}
		]
		}
		}
		]
		},
		"vpn-services": {
		"vpn-service": [
		{
		"vpn-id": "vpn-example"
		}
		]
		}
		}
		}

		No newline at end of file