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Operation Analytics Plays Key Role in Virtualization & OrchestrationVirtualization gives communication service providers (CSPs) a new level of flexibility by enabling network functions and services anywhere, with the added possibility of different functions and services sharing the same physical resources. However, this new paradigm introduces an additional layer of complexity when identifying and isolating issues when they appear, as well as pinpointing their root cause and determining the true impact to customers. It creates the need for much more sophisticated assurance capabilities that go beyond the traditional network monitoring to one that includes a combination of data center and network analysis capabilities encompassing physical and virtual resources in real time.
The role of the NFV orchestrator The introduction of virtualized network functions will not completely replace the legacy network deployed in specialized hardware, which means that CSPs will operate hybrid networks for the foreseeable future. With that in mind, it is clear that the orchestration layer should expand from the data center all the way to the access covering both physical and virtual network components. This orchestration layer must be integrated with legacy systems such as OSS and BSS and element management system (EMS)/network management system (NMS) as well as with new elements such as network controllers or cloud managers (VIM, VNF Managers, etc.).
Orchestration layer benefits Software-defined networking (SDN) and NFV are independent, albeit closely linked technologies that occupy significant mindshare in the service provider community for their transformative potential to improve the customer experience and reduce costs. In conjunction with these technologies, the orchestration layer enables CSPs to make greater use of automated processes in troubleshooting, fulfillment and assurance. For example, the orchestration layer can:
Realizing these benefits is predicated on virtualization and orchestration being done right--with automation and agility as its cornerstones. A new breed of analytics must be used to drive smarter orchestration for CSPs and help them to deliver comparable service quality and experience to expectant customers. Sophisticated, machine-driven analytics is essential to quickly detecting and redressing service disruptions in this complex ecosystem.
Monitoring and acting on both the physical and virtual network The current OSS layer needs to adjust to a new model in which control and service functions are instantiated dynamically based on resource demands. In addition, VNFs and the links used to connect services must move dynamically based on utilization, policy, and business logic rules. As NVFs are added, moved, and de-commissioned, the monitoring points must also be created, moved, and retired at the same rate. Additionally, service assurance system should have a unified, end-to-end view of network topology (both physical and virtual) and operate in real time to detect issues and recommend solutions. While Orchestration brings the benefits listed above, it also adds a new layer of complexity to coordinate, monitor and manage all the resources involved in delivering services. Orchestration must be supported by an analytics engine that can collect information in real-time from all different parts of the network, both physical and virtual, and correlate data with other OSS/BSS systems and customer experience markers to detect anomalies, predict customer experience issues and prescribe the solution to the orchestration layer.
Machine intelligence automates service-oriented approach
CSPs should approach the challenge of transitioning to all-IP world with NFV functionality strategically by embedding machine intelligence as a key pillar for delivering the level of service assurance in virtualized environments. Real-time operations analytics enable CSPs to assure superior customer experience while maximizing the full benefits offered by virtualized functions. |
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On-the-Air Thursdays Digital Audio
ARCHIVED | December 7, 2017, 12pm EST
Orange has been one of the leading proponents of SDN and NFV. In this Telco Transformation radio show, Orange's John Isch provides some perspective on his company's NFV/SDN journey.
Special Huawei Video
Huawei Network Transformation Seminar The adoption of virtualization technology and cloud architectures by telecom network operators is now well underway but there is still a long way to go before the transition to an era of Network Functions Cloudification (NFC) is complete. |
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