09 Apr CTO Jonathan Cartu Claims – Subvert the Tradition Through NFV Network Automated Design…
By regarding 5G as the next-generation wireless network communication technology, global telecom operators are accelerating its network construction. Major countries and regions have proposed 5G pilot plans and commercial timetables, striving to lead global 5G standards and industrial development. The GSA reports show that by the end of March 2020, 381 operators in 123 countries and regions around the world had announced their investment in 5G. 70 operators in 40 countries and regions including China have launched one or more 5G services that support 3GPP standards. The global 5G era has approached.
As operators want to put 5G into commercial use quickly, how to accelerate network construction becomes the key. However, the virtualized core network is an indispensable core foundation for future 5G development. Therefore, all major operators put forward new requirements for fast and large-scale deployment of NFV networks. It is urgent to introduce automatic construction solutions in the NFV construction process to reduce network construction difficulties and improve the overall network deployment efficiency.
Automatic requirements of 5GC construction scenarios
5G core network is a new virtualized network. Because virtualized networks are evolving in hierarchical decoupling mode, decoupling means that more hardware and software manufacturers are introduced. In addition, the standard 5G core network architecture involves multiple NEs, and the network architecture is complicated. Therefore, the operator will face the huge challenge of integrating multiple vendors with multiple interfaces cross domains with respect to a series of cycles such as NFV network design, verification, deployment and check.
Automatic design requirement of NFV network
The complexity of NFV network determines the difficulty in network design. Normally, the NFV LLD (Low Level Design) network design involves dozens of data tables and thousands of parameters, and there are complicated logical relationships among the data tables. In the manual planning mode, planning and design personnel must have rich practical experience and high-level skills. Even in this case, the manual mode cannot avoid time-consuming and error-prone problems, causing trouble in troubleshooting and project duration extension during network construction and deployment. Therefore, from the perspective of operators, it is hoped that an automatic design tool can help simplify design difficulties, shorten design duration, and improve design accuracy.
Automatic deployment demand of NFV network
NFV network construction starts from hardware deployment and integration, and ends with software deployment and integration. The entire process involves a large number of components, configuration object parameters, and operation steps, resulting in a long deployment period. In the traditional construction mode, it usually takes about one month to complete hardware integration and VNF instantiation. Therefore, from the perspective of operators, automatic deployment is expected to be implemented, so that automatic installation and deployment can be implemented throughout the process and the overall deployment efficiency can be improved.
Automatic design realization road and value analysis of NFV network
ZTE NFV network automation is implemented through the AIC (Auto Integration Center) tool. The AIC tool provides a series of end-to-end and one-stop services such as NFV network integration planning and design, solution verification, test design, integration deployment, and integration test. With the ZTE OpenLab and pre-integration workflow, the AIC tool can provide a variety of 5G core network NFV integration service scenarios covering NFVI integration, MANO integration and VNF integration, greatly reducing the integration difficulty of 5G core network scenarios, speeding up the construction of 5G network and facilitating network transformation.
AIC automatic planning: The overall efficiency is promoted by 75%
The AIC iDevise tool is based on the workflow of parsing the NFV network planning and design. It parses the work contents in each stage of the LLD design process (including the integration design requirement quantification, non-functional requirement confirmation, project scope/constraint/dependency input, configuration list input, naming planning, computing resource planning, network resource planning, storage resource planning, cloud management planning, end-to-end reliability planning and end-to-end security planning) to determine whether the tool can be used to improve efficiency in this phase. As shown in the following figure, most of the work in LLD planning and design can be optimized through the tool and the efficiency can be improved.
When the AIC iDevise tool runs through the complete service flow of planning work, it can be seen that the planning time is shortened from the original 1.3 persons per month to 0.3 person per month at the same scale, and the overall efficiency can be improved by 75%.
AIC automatic installation and deployment: The overall efficiency is promoted by 85%
The 5G network deployment involves a wide range of contents. The overall deployment process includes BoQ re-confirmation, DC environment information collection, hardware networking configuration, COTS integration installation, Cloud OS integration deployment, MANO integration deployment and APP on-boarding. The AIC automation installation and deployment tool resolves the work contents of each installation step, and automatically connects and runs the manual installation procedure through the installation script to implement one-click zero intervention deployment.
After the AIC automation installation deployment tool runs through the complete service flow of installation work, it can be seen that the original installation duration of 1.47 persons per month in the same scale is shortened to 0.2 person per…