Download Optimizing Existing Networks for Data Acquisition

Optimizing Existing Networks for Data Acquisition
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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
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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.
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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
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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
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P. O. Drawer 28510
San Antonio, Texas 78228-0510
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research and development organization using multidisciplinary approaches to problem solving.
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square feet of laboratories, test facilities, workshops, and offices for nearly 3,000
employees who perform contract work for industry and government clients.
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Designed by SwRI MPS & Automation and Data Systems Division Printed by MPS 10/14/2015 JCN 253,153 ab