A network functions virtualization (NFV) proof of concept (POC) is a method to delineate goals for NFV adoption. An NFV POC aims to achieve industrial awareness and confidence in NFV’s ability to become a workable and trusted technology. They also are integral to creating a diverse and open environment for NFV adoption. NFV POCs can take place in many forms, but regardless of whether its an open exhibit at a major trade show, or an experimental test done behind closed doors, an NFV POC’s impact reaches beyond the organization hosting it.
An NFV POC process has been outlined by the European Telecommunications Standards Institute (ETSI), an organization instrumental in developing standards for NFV, with most of the work split amongst working groups made up of experts from member organizations. NFV POCs also help guide ETSI Industry Specification Group (NFV ISG) by offering insightful feedback on interoperability and other technical hurdles. NFV ISG has created an NFV POC Framework to streamline multi-vendor POCs that touch on key areas of NFV.
NFV POC Examples:
Below are NFV POCs that have been developed according to the ETSI NFV ISG POC framework.
- POC #1: CloudNFV Open NFV Framework Project
- POC #2: Service Chaining for NW Function Selection in Carrier Networks
- POC #3: Virtual Function State Migration and Interoperability
- POC #4: Multi-Vendor Distributed NFV
- POC #5: E2E vEPC Orchestration in a Multi-Vendor Open NFVI Environment
- POC #6: Virtualized Mobile Network with Integrated DPI
- POC #7: C-RAN Virtualization with Dedicated Hardware Accelerator
This POC looks to demonstrate the feasibility of base station virtualization by evaluating the performance and then speeding up the maturity of the environment. It will realize cloud RAN (C-RAN) and deploy virtualization based on a general-purpose platform, which can support TD-LTE and GSM systems.
- POC #8: Automated Network Orchestration
Intended to prove that infrastructure and SW deployment can be unbundled, this POC makes all crucial resources of the categories compute, store, and connectivity are orchestrated and exposed in a virtualized way to the Telco service. This ensures an efficient resource utilization, as well as reduced complexity.
- POC #9: VNF Router Performance with DDoS Functionality
This POC shows how various Layer 2-4 DDoS attacks can be handled in real-time using a VNF router. It also characterizes the performance impact of implementing Layer 2-4 DDoS attack detection/mitigation schemes in a VNF router.
- POC #10: NFV Ecosystem
- POC #11: Multi-Vendor On-Boarding of vIMS on a Cloud Management Framework
Here, we see the integration of an Huawei IMS application with the CloudBand Platform offered by Alcatel-Lucent over a standard cloud infrastructure implemented in Deutsche Telekom facilities. This POC demonstrates automated on-boarding of VNFs provided by a single vendor and its integration into NFVI in a multi-vendor setup.
- POC #12: Demonstration of Multi-Location, Scalable, Stateful Virtual Network Function
- POC #13: SteerFlow: Multi-Layered Traffic Steering for Gi-LAN
- POC #14: ForCES Applicability for NFV and Integrated SDN
This PoC shows the applicability of IETF’s ForCES framework for NFV. The ForCES model was used to describe VNFs, services, and the infrastructure definition in a clear and concise way. Various vendor equipment and software was used to realize the demo.
- POC #15: Subscriber Aware SGi/Gi-LAN Virtualization
In this POC, we learn about the feasibility and value of a subscriber-aware SDN solution in the Gi-LAN portion of the mobile operator network. The implementation is based on a switch that can be programmed on a per-endpoint basis by using an SDN Controller. Programming the switch this way allows the SDN Controller to ensure that traffic flows for each subscriber are chained through available virtual or physical network functions.
- POC #16: NFVIaaS with Secure, SDN-Controlled WAN Gateway
Here, we see the application of NFV and SDN in multi-tenant data centers and over the WAN for hybrid, private-public, cloud infrastructure. Communication between the SDN Controller and the orchestrator ensures SLA is met over the WAN.
- POC #17: Operational Efficiency in NFV Capacity Planning, Provisioning and Billing
- POC #18: VNF Router Performance with Hierarchical Quality of Service Functionality
- POC #19: Service Acceleration of NW Functions in Carrier Networks
- POC #20: Virality Based Content Caching in NFV Framework
- POC #21: Network Intensive and Compute Intensive Hardware Acceleration
- POC #22: Demonstration of High Reliability and Availability Aspects in a Multivendor NFv Environment
- POC #23: E2E Orchestration of Virtualized LTE Core-Network Functions and SDN-based Dynamic Service Chaining of VNFs Using VNF FG
- POC #24: Constraint Based Placement and Scheduling for NFV/Cloud Systems
- POC #25: Demonstration of Virtual EPC (vEPC) Applications and Enhanced Resource Management
This POC demonstrates vEPC functions alongside enhanced resource management on AMD’s 64bit ARM and x86 processors. It also shows a scalable system based on different CPU architectures and network traffic load migration by moving control and data traffic from one target system to another target system.
- POC #26: Virtual EPC with SDN Function in Mobile Backhaul Networks
Here, we see a POC that demonstrates a disruptive integration of NFVs with SDN to integrate a virtualized EPC that maintains functionality of core network elements, such as MME and HSS, creating a backwards compatibility. With this POC, flexibility of using SDN in the mobile backhaul is verified, showing that mobile operators can choose the granularity for QoS provisioning to mobile users
- POC #27: VoLTE Service Based on vEPC and vIMS Architecture
In this POC, the goal is to demonstrate the feasibility of end-to-end VoLTE service based on vEPC and vIMS architecture that can run on a multi-vendor NFV environment. With SDN and packet processing accelerator technologies introduced, the controller plane and user plane of the vEPC Gateway can be decoupled while the DPDK and SR-IOV technologies can be introduced into the SDN-based forwarding equipments of data plane for high-speed data package processing in phase II of the POC.
- POC #28: SDN Controlled VNF Forwarding Graph
- POC #29: Service Orchestration for Virtual CDN Service Over Distributed Cloud Management Platform
- POC #30: LTE Virtualized Radio Access Network (vRAN)
- POC #31: STB Virtualization in Carrier Networks
- POC #32: Distributed Mutli-Domain Policy Management and Charging Control in a Virtualized Environment
- POC #33: Scalable Service Chaining Technology for Flexible Use of Network Functions
This POC aims to certify that Service Function Chaining (SFC) is effective in implementing the VNF Forwarding Graph. Also, by using functions for SFC provided by several vendors, this POC looks to demonstrate the interoperability of SFC.
- POC #34: SDN Enabled Virtual EPC Gateway
- POC #35: Availability Management with Stateful Fault Tolerance
This POC shows the concept of Service Accessibility and Service Continuity using software-defined availability (SDA), a dynamic way of providing fully automated selectable levels of resiliency, including stateful fault tolerance (FT), without the need for any application awareness or code changes.