Enterprise vCPE September 27, 2017.

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Presentation transcript:

Enterprise vCPE September 27, 2017

E-vCPE Business drivers Enterprise customers would benefit from cloud services and automation either on-premises or in the cloud depending on their branch configurations. This will free the enterprise users from the installation, local configuration and administration of LAN/NAT/WAN/VPN networking. SPs would benefit from a more flexible platform to provide more kinds of virtual services. To implement the configuration remotely will help SPs reduce complexity of the service deployment and cut down the OPEX. The centralized traffic scheduling and optimization of backbone network is the embodiment of SDN concept in backbone network, it will help operators enhance the management ability of operation and maintenance and improve the efficiency of resource utilization. Authors: China Telecom, China Mobile, Huawei, ZTE, ARM, Accenture

E-vCPE Usecase Description This use case is mainly used for the Enterprise Service Provider (SP) to provide the Site2site service to the tenants both efficiently and safely by deploying enterprise-based vCPE. Enterprise users could receive high-quality and cheap cloud service based on the operator’s BSS Portal and ONAP. And in here, ONAP is used to instantiate and operate the required vCPE in the access network as a cloud service. For the application scenarios of E-vCPE use case, it supports site-to-site, site-to-DC and site-to-Internet services to the customers. It not only provides the solution of ThinCPE and vCPE in the edge-DC but also CPE solution as an alternative choice for enterprise customer. The solution of vCPE in the edge-DC is an actual deployment scheme which can provide more value-added service in DC and make it easy for access control. In this case, ONAP will present its function to instantiate, configure and manage both the overlay connection between site-to-site/DC/Internet and VNFs . There are two alternative ways to set up overlay connection, including VxLAN and IPSec. It is a stretch goal to fulfill traffic scheduling in WAN network by means of path calculation and load balancing.

E-vCPE Fusion Architecture

New/Enhancement Functional Platform Requirements Priority New / Enhancement Related components Comments vCPE-enterprise service onboarding 1 SDC, SO, AAI, DCAE, Policy vCPE service data collection 2 SDN-C, DCAE,A&AI Statistics collection on vCPE/ link connection/ topology /delay/traffic utilization/jitter, etc. Path Selection New SDN-C,DCAE, A&AI,PCE, policy Do the selection of different access SPs networks or different core networks( MPLS/Internet) within one SP Intelligent path analysis 3 NAI Data detection, prescription and prediction; Provide traffic pre-scheduling, policy pre-setting… Overlay connection type selection Portal, SO, SDN-C IPsec/vxlan selection Order management A&AI, SO Deal with the order received from BSS, and manage different types of ongoing orders VNF onboarding SDC,SO,AAI,APPC/VF-C,Policy vNAT onboarding(vCPE,vAAA,vDHCP,vFW have been realized) VNF instantiation Portal,SO,AAI,VF-C,MULTI-VIM vNAT instantiation (vCPE,vAAA,vDHCP,vFW have been realized) VNF configuration SO ,VF-C,MULTI-VIM vNAT configuration (vCPE,vAAA,vDHCP,vFW have been realized)

Project impact  Order  Management PCE NAI

Path Computation Element UC Requirement----path selection Do the selection of different access SPs networks or different core networks( MPLS/Internet) within one SP Module Description PCE (Path Computation Element) aims to conduct the path calculation and load balancing for the ONAP network. In the current network, there are multiple vendor controllers along with different path calculation method, and through the PCE, ONAP can analyze data collected from PNFs thus acquiring the whole network topology and flow, and then conduct path calculation uniformly for traffic scheduling and load balancing. As for overlay ,PCE can also do the selection of different access SPs networks or different core networks( MPLS/Internet) within one SP using the data collected and path calculation algorithm.

PCE -- Technical proposal overview Collection and analysis Path calculation Verification and deployment Collect data on current network, including LSDB/TED data, node link flow information, topology /delay/traffic utilization/jitter etc. Acquisition technology: SNMP, Netflow Multiple path algorithms are supported to calculate the forwarding path according to the collected network data The calculated new forwarding path is deployed to the device after network simulation verification

Network Artificial Intelligence UC Requirement---- Intelligent path analysis Data detection, prescription and prediction; Provide traffic pre-scheduling, policy pre-setting… Module Description NAI (Network Artificial Intelligence) component provides data analysis including data detection, prescription and prediction for efficient and intellectualized ONAP network management. And NAI aims to provide traffic prescheduling, policy presetting and resources relocation functions based on the historical data collected from DCAE. Through introducing machine/deep learning algorithms and frameworks, NAI fulfills the fast scheduling automatically and with the well trained NAI system, the accuracy and efficiency will significantly increase compared to the current network management.

PCE,NAI-- Architecture Alignment Collection and monitoring Path calculation Configuration and deployment Analyze and trigger Policy NAI PCE needs two kinds of information for path calculation and load balancing including network topology and network flow information. In the PCE loop, the module first gets the BGP-LS topology information from the Controller and the network utilization along with network flow information from DCEA/Holmes.PCE will conduct path calculation and load balancing by using those two kinds of information. And then the analysis results are sent to event bus or trigger the policy to do the configuration and deployment for closed loop automation.

Order Management Module UC Requirement----Order Management Deal with the order received from BSS, and manage different types of ongoing orders Module Description Order Management Module mainly take orders from BSS for management in ONAP system, this services may include four core functions: order storage, decomposition, execution status management, completion report, etc . This service can respond to different orders, for the new business orders, it provides virtual network topology orchestration, physical resource allocation, and end-to-end construction. For business change orders, it changes the existing resources or control parameters. Besides, it also can realize the resource recovery and the associated load control parameters change for the business termination order.

Project impact 1. Portal: SDN-C 8. APP-C/VF-C 9. PCE Support E-vCPE case lifecycle management actions, monitor service instances status, display FCAPS metrics data in real time, select Overlay connection ways(IpSec/VxLan). 2. SDC: Design vCPE network service; Design policies (eg. Auto-healing policy, design alarm correlation rules ); Design work flow used by SO/VF-C/SDN-C; Design E2E service… 3. DCAE: Support statistics collection on the CPE and receipt of events as per the new model in real time ,for example network utilization along with network flow information, jitter etc. 4. Policy Support to define and execute auto-healing policy rules; Handling the notifications related to VNF and PNF alarms/events ; A&AI Inventory model for E-vCPE; Infrastructure resources ; Topological information, E2E service lifecycle management, decompose E2E service and talk with VF-C/SDN-C to instantiate services respectively in NFV/SDN domain; SO: E-vcpe service workflow execution (E2E service lifecycle management, decompose E2E service and talk with VF-C/SDN-C to instantiate services respectively in NFV/SDN domain) SDN-C Network connection service lifecycle management; Integrate with 3rd party SDN Controllers to setup MPLS VPN for underlay; Integrate with 3rd party SDN Controllers to setup overlay connection; Support current node status information collection and so on. 8. APP-C/VF-C Network service lifecycle management; VNFs in E-vCPE usecase lifecycle management; Integrate with EMS to collect FCAPS metrics data of VNF level and do Application configuration; Integrate with Multi-VIM to do virtual resource management; 9. PCE Integrate with controller to get the BGP-LS topology Integrate with DCEA/Holmes to get network flow information Conduct path calculation and load balancing 10. NAI Data detection, prescription and prediction; Provide traffic pre-scheduling, policy pre-setting and resources relocation functions; Order Management Take orders from BSS for management: order storage, decomposition, execution status management, completion report, etc

Thanks