Shulou(Shulou.com)06/02 Report--

We have witnessed and experienced how open source software technology has revolutionized the application development process, eventually leading to a digital transformation across vertical areas of various industries. Open source technologies are now upending the telecommunications sector (5G Internet), which will be supported by Network functional Virtualization (NFV) and Software defined Networks (SDN). With NFV and SDN, a variety of network functions and control and management operations and maintenance in telecommunications networks will be driven by software (using cloud native and DevOps methods).

Communities drive innovation in the software stack behind NFV and SDN technologies, such as OpenStack, ONAP, ETSI Open Source MANO (OSM), OPNFV, OpenDaylight, Open Networking Foundation (ONF), Open Contrail, Open Baron, On.Lab, CORD, Kubernetes, ONOS, and Open-O. In this article, we will learn how the combination of the data center management platform, OpenStack, and ETSI Open Source MANO (OSM) can be used for NFV deployment.

OpenStack is used for NFV

It is well known that OpenStack is the largest pool of open source projects that together constitute the software platform for cloud computing infrastructure. This infrastructure is widely used by many enterprises in private cloud use cases. After ETSI introduced NFV, OpenStack has become the key infrastructure platform of NFV. In most NFV deployments, OpenStack is used in the VIM (Virtual Infrastructure Manager) layer to provide a standardized interface for managing, monitoring, and evaluating all resources within the NFV infrastructure.

Various OpenStack projects, including Tacker, Neutron, Nova, Astara, Congress, Mistral, and Senlin, can manage the virtualized infrastructure components of the NFV environment. For example, Tacker is used to build a generic VNF Manager (VNFM) and NFV Orchestrator (NFVO), which helps deploy and operate VNF within the NFV infrastructure. In addition, the integrated OpenStack project introduces a variety of features to the NFV infrastructure, including performance features such as large pages, CPU Pinning, NUMA topology, and SR-IOV, as well as chain of service functions, network slicing, scalability, high availability, resiliency, and multi-site support.

Telecom service providers and enterprises that implement the NFV environment with OpenStack include AT&T, China Mobile, SK Telecom, Ericsson, Deutsche Telekom, Comcast and Bloomberg.

Open Source MANO (OSM) for NFV

The Management and orchestration (MANO) layer is responsible for orchestrating and completing the lifecycle management of hardware resources and virtual network functions (VNF). In other words, the Mano layer coordinates NFV Infrastructure (NFVI) resources and maps them effectively to various VNF. There are many options for MANO's 3D software stack. However, due to a large number of activities at the community level and a highly mature framework, production-ready, easy to start, and members continue to provide use cases, ETSI-hosted OSM is largely the first choice.

Virtual network functions (VNF) form network services and may need to be updated to add features or patches. OSM provides a way to invoke VNF upgrade operations with minimal impact on running network services.

As the community continues to support and participate in functional innovation, OSM has now evolved into a framework for continuous integration and continuous delivery (CI / CD) at the MANO layer.

The latest version 4 of OSM brings a large number of new features and enhancements to the OSM framework, enhances functionality, user experience and maturity, and provides various enhancements to NFV MANO from the perspective of usability and interoperability.

OSM steadily adopts cloud native principles and can be easily deployed in the cloud because the installation is container-based and runs with the help of the container orchestration engine. The new northbound interface is consistent with the ETSI NFV specification SOL005 and provides dedicated control of the OSM system. Monitoring and closed-loop functions have also been enhanced.

OSM version 5 is expected to be released in November and will be bundled with more 5G-related features, such as network slicing and container-based VNF.

Why are OpenStack and Open Source MANO used in the MANO layer of NFV?

Both OpenStack and OSM have a large community known for their rapid pace of innovative NFV and the high contribution of companies of all sizes (enhancing current capabilities and developing new ones for core projects under them).

Standardize the interface between NFV elements and infrastructure for NFV,OpenStack. OpenStack is used for business solutions provided by the company, including Canonical / Ubuntu, Cisco, Ericsson, Huawei, IBM, Juniper, Mirantis, Red Hat, SUSE, VMware and Wind River. Most VIM deployments are based on OpenStack because the simplicity of handling and operating various projects is designed to provide NFV with comprehensive potential storage, computing, and networking.

In the last two releases (3 and 4), OSM has evolved to support the integration of cloud native methods by supporting the CI / CD framework at the orchestration layer. OSM's cloud readiness forms a key advantage with OpenStack-OpenStack has proven to be a suitable architecture for both private and public clouds. OSM deployment to the NFV infrastructure becomes very compact, and you can start by importing docker containers into production. On the other hand, OpenStack is known for simplifying the management of virtualized and containerized infrastructure. Due to streamlined and simple management and deployment, enterprises can realize the full benefits of integration by using OSM and OpenStack's NFV MANO.

Conclusion

Since the introduction of NFV and SDN, telecom service providers and suppliers have evaluated the use cases provided for telecommunications networks, and these use cases are at a mature stage due to the application of both. On first reading, service providers and suppliers are concerned about the dynamic orchestration and automation of infrastructure deployment and how to continuously upgrade virtual network capabilities (VNF). However, thanks to the contributions of open source communities such as OpenStack and Open Source MANO (OSM), they are now at the stage of applying cloud native principles to 5G network implementation and operation and maintenance.

In addition, as the community contributes to OpenStack and OSM projects, we will see more enhancements to 5G network enhancement technologies, including network slicing, mobile edge computing (MEC), and cloud wireless access networks (cRAN). It has the functions of low latency and high bandwidth, which will be conducive to the development of emerging technologies including the Internet of things, AI/ machine learning, real-time analysis, augmented reality (AR) and virtual reality (VR).

Original text link:

Https://devops.com/openstack-and-open-source-mano-technologies-for-nfv-deployment/

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