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Open Virtualization

High Performance, Open Standard Virtualization with NFV and SDN
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Wind River Open Virtualization
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Network Functions Virtualization and Software Defined Networking

To remain competitive, today's network operators must respond to evolving markets and traffic types in a timeframe of hours and days rather than the months and years more typical of traditional carrier grade networks.

Software defined networking (SDN) and network functions virtualization (NFV) are two approaches that decouple network functions from hardware through abstraction, offering unprecedented flexibility and control over customer offerings. SDN and NFV reduce operating and capital expenses (OPEX and CAPEX) through application and hardware consolidation, space and power reduction, and improved operational and support efficiencies.

Key Benefits of NFV and SDN

CAPEX Savings

Figure 1: From purpose-built devices to virtualized network functions running on industry-standard servers

OPEX Savings

Service Revenue Opportunities

Enhancing Open Source for SDN and NFV

Communications service providers have stringent timing constraints for their mission-critical applications and services such as voice, video, and charging. In many cases, open source software components must be enhanced in order to satisfy the associated real-time requirements. Consequently, Intel® and Wind River® have been working to improve the performance of network functions running in virtualized SDN and NFV environments.

Wind River Open Virtualization, based on Wind River Linux, provides performance enhancements, management extensions, and application services through open components. Adopting the Yocto Project as its core foundation, Wind River Linux is a carrier grade, turnkey operating system that delivers all of the technologies essential to building a powerful, flexible, responsive, stable, and secure platform.

Figure 2 shows Open Virtualization running with the guest and Wind River Linux host installations. Since performance is a critical requirement, Open Virtualization delivers the following:

Open Virtualization Features Supporting NFV and SDN

Wind River Open Virtualization integrates a range of technologies and techniques to deliver adaptive performance, interrupt delivery streamlining and management, system partitioning and tuning, and security management.


The performance improvement delivered by Wind River Open Virtualization is demonstrated by a series of benchmark tests performed by Wind River. The message signaled interrupt (MSI) latency of an out-of-the box version of KVM and Linux was measured to be as high as 600 μs and the average was around 25 μs. When the same test was run on a system with Open Virtualization, the maximum interrupt latency was less than 14 μs and the average was about 8 μs. This represents a more than 40 times improvement in the worst-case latency of the non-optimized case .

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Wind River, a wholly owned subsidiary of Intel Corporation (NASDAQ: INTC), is a world leader in embedded and mobile software. Wind River has been pioneering computing inside embedded devices since 1981 and its technology is found in more than 500 million products