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Optimizing Existing Networks for Data Acquisition S tandard networks are already deployed at most test facilities, and utilizing the existing network as a data acquisition delivery backbone is a logical choice for transporting data. However, standard, “untuned” networking cannot adequately address the throughput and latency delivery requirements of some network systems. But because these backbones are often coupled with many other data processing functions, adjusting the network backbone solely for the test community is not feasible. In an effort to use the existing backbones and also allow tuning of the data delivery to be done by the test engineer, Southwest Research Institute® (SwRI®) has developed a framework for creating virtual network fabric devices (routers, switches, smart hubs). In this way, test engineers can create their own delivery network on top of the existing backbone. These specialized networks provide test engineers with full control to enforce quality of service (QoS), multicast and other routing functions specific to their needs. Features The SwRI framework provides building blocks that perform like typical network items such as interfaces, links, and more. Logical groupings of physically and/or geographically separated network interfaces can operate together for IP routing. Constructing higher-level network components such as hubs, switches, and routers supports RFC compliance and also allows further specialization. •Quality of service •Adjustable DiffServe Compliant rules •IGMP (Internet Group Management Protocol) •Static and dynamic routing •Specialized IP spaces •Reliable multicast data delivery •Data encryption and tunneling within the virtual router “network fabric” •Redundant routing rules and paths with failover options •Duplicate packet filtering D019217 SwRI’s version of a framework-generated RFC 1812-compliant router (“virtual router”) managed directly by the test engineer includes: Geographically separated networks with a mobile network allows for interfaces to operate together for IP routing and further specialization. Reducing the complexity of the end-to-end network path to a single logical router that connects each network of interest allows for the enforcement of end-to-end QoS. With the system-level view, the virtual router is able to enforce the system policies for network latency of critical and time-sensitive data such as voice and video. D019218 SwRI’s network optimization framework provides test engineers with end-to-end control mechanisms needed to address specific problems. The “Virtual router” created by SwRI’s network optimization framework is able to enforce the system policies for network latency. Southwest Research Institute technology data sheet Test Facility and Capabilities D019239 D019238 D019237 The Network Systems Research Lab at SwRI provides flexible testing, emulation, and simulation of a wide variety of network technologies and topologies. The heart of this capability is a rapidly reconfigurable discrete and virtual server cluster that can emulate at least 75 physical network devices with aggregate data rates greater than 50 gigabits per second. This capability combined with SwRI’s experience and a combination of other network test and analysis tools allows test and evaluation of specialized network device problems in areas such as timing, throughput, and latency not possible elsewhere. The Network Systems Research Lab at SwRI provides flexible testing, emulation, and simulation of a wide variety of network technologies and topologies. For additional information contact: Todd A. Newton Senior Research Engineer Advanced Instrumentation and Telemetry Systems +1 (210) 522-5348 Fax +1 (210) 522-5499 [email protected] instrumentation.swri.org appliedsensing.swri.org swri.org Automation and Data Systems Division Southwest Research Institute 6220 Culebra Road P. O. Drawer 28510 San Antonio, Texas 78228-0510 Southwest Research Institute is an independent, nonprofit, applied engineering and physical sciences research and development organization using multidisciplinary approaches to problem solving. The Institute occupies 1,200 acres in San Antonio, Texas, and provides more than 2 million square feet of laboratories, test facilities, workshops, and offices for nearly 3,000 employees who perform contract work for industry and government clients. Find us on SwRI Business Development San Antonio, Texas (210) 522-2122 [email protected] © 2015 Southwest Research Institute. All rights reserved. An Equal Employment Opportunity/Affirmative Action Employer • Race/Color/Religion/Sex/Sexual Orientation/ Gender Identity/National Origin/Disabled/Veteran • Committed to Diversity in the Workplace Designed by SwRI MPS & Automation and Data Systems Division Printed by MPS 10/14/2015 JCN 253,153 ab