On-demand webinar's presentation about WLAN in high-client density environments. With the participation of Texas Tech and Novarum.
Watch the webinar at http://itvirtualevent.com/jwlan/
LOW POWER CLASS AB SI POWER AMPLIFIER FOR WIRELESS MEDICAL SENSOR NETWORK bioejjournal
The objective of this research was to design a 2.4 GHz class AB Power Amplifier (PA), with 0.18um
Semiconductor Manufacturing International Corporation (SMIC) CMOS technology by using Cadence
software, for health care applications. The ultimate goal for such application is to minimize the trade-offs
between performance and cost, and between performance and low power consumption design. This paper
introduces the design of a 2.4GHz class AB power amplifier which consists of two stage amplifiers. This
power amplifier can transmit 10dBm output power to a 50Ω load. The power added efficiency is 7.5% at
1dB compression point and the power gain is 10dB, the total power consumption is 0.135W. The
performance of the power amplifier meets the specification requirements of the desired.
LOW POWER CLASS AB SI POWER AMPLIFIER FOR WIRELESS MEDICAL SENSOR NETWORK bioejjournal
The objective of this research was to design a 2.4 GHz class AB Power Amplifier (PA), with 0.18um
Semiconductor Manufacturing International Corporation (SMIC) CMOS technology by using Cadence
software, for health care applications. The ultimate goal for such application is to minimize the trade-offs
between performance and cost, and between performance and low power consumption design. This paper
introduces the design of a 2.4GHz class AB power amplifier which consists of two stage amplifiers. This
power amplifier can transmit 10dBm output power to a 50Ω load. The power added efficiency is 7.5% at
1dB compression point and the power gain is 10dB, the total power consumption is 0.135W. The
performance of the power amplifier meets the specification requirements of the desired.
WLAN definition
WLAN is the abbreviation of Wireless Local Area Network, which refers to the application of wireless communication technology to interconnect computer equipment to form a network system that can communicate with each other and realize resource sharing.
A Wireless Local Area Network (WLAN) wireless LAN is a wireless computer network that links two or more devices using wireless communication to form a local area network within a limited area such as a home, school, computer laboratory, campus, or office building.
The essential feature of a wireless local area network (WLAN) is that it no longer uses a communication cable to connect the computer to the network, but connects it wirelessly, which makes the construction of the network and the movement of the terminal more flexible.
It is a very convenient data transmission system. It uses radiofrequency (RF) technology and uses electromagnetic waves to replace the old-style twisted-pair copper wire (Coaxial) in the local area network. It communicates in the air and makes a wireless local area network. It can be easily used.
Noise & Its Effects on Mobile
Understanding GSM & CDMA
Basics of GSM Architecture
And services like voice call , SMS ,MMS ,LBS,VAS
Different Modes used for Mobile Communication
Architecture of Mobile Computing(3 Tier)
Device to Device Communications will enable on cellular 4G/5G networks soon, There are many research aspects in D2D Communications,
Mode Selection
Network Coding
MIMO
Multi-Hop
the most complicated Interference scenarios are coming
CompTIA exam study guide presentations by instructor Brian Ferrill, PACE-IT (Progressive, Accelerated Certifications for Employment in Information Technology)
"Funded by the Department of Labor, Employment and Training Administration, Grant #TC-23745-12-60-A-53"
Learn more about the PACE-IT Online program: www.edcc.edu/pace-it
IJERA (International journal of Engineering Research and Applications) is International online, ... peer reviewed journal. For more detail or submit your article, please visit www.ijera.com
seminar paper on BROADBAND OVER POWER LINES. It is the method of data transfer through the existing power lines.
"Wherever electricity is available there could be broadband"
Presentation delivered by David Ward at the Open Networking Summit in October 2011.
Details of OpenFlow, New Applications, and how to deliver it to your business. Network engineer & developer focused.
WLAN definition
WLAN is the abbreviation of Wireless Local Area Network, which refers to the application of wireless communication technology to interconnect computer equipment to form a network system that can communicate with each other and realize resource sharing.
A Wireless Local Area Network (WLAN) wireless LAN is a wireless computer network that links two or more devices using wireless communication to form a local area network within a limited area such as a home, school, computer laboratory, campus, or office building.
The essential feature of a wireless local area network (WLAN) is that it no longer uses a communication cable to connect the computer to the network, but connects it wirelessly, which makes the construction of the network and the movement of the terminal more flexible.
It is a very convenient data transmission system. It uses radiofrequency (RF) technology and uses electromagnetic waves to replace the old-style twisted-pair copper wire (Coaxial) in the local area network. It communicates in the air and makes a wireless local area network. It can be easily used.
Noise & Its Effects on Mobile
Understanding GSM & CDMA
Basics of GSM Architecture
And services like voice call , SMS ,MMS ,LBS,VAS
Different Modes used for Mobile Communication
Architecture of Mobile Computing(3 Tier)
Device to Device Communications will enable on cellular 4G/5G networks soon, There are many research aspects in D2D Communications,
Mode Selection
Network Coding
MIMO
Multi-Hop
the most complicated Interference scenarios are coming
CompTIA exam study guide presentations by instructor Brian Ferrill, PACE-IT (Progressive, Accelerated Certifications for Employment in Information Technology)
"Funded by the Department of Labor, Employment and Training Administration, Grant #TC-23745-12-60-A-53"
Learn more about the PACE-IT Online program: www.edcc.edu/pace-it
IJERA (International journal of Engineering Research and Applications) is International online, ... peer reviewed journal. For more detail or submit your article, please visit www.ijera.com
seminar paper on BROADBAND OVER POWER LINES. It is the method of data transfer through the existing power lines.
"Wherever electricity is available there could be broadband"
Presentation delivered by David Ward at the Open Networking Summit in October 2011.
Details of OpenFlow, New Applications, and how to deliver it to your business. Network engineer & developer focused.
MCITP candidates are IT professionals capable of deploying, building, designing, optimizing, and operating technologies for a particular job role. They make the design and technology decisions necessary to ensure successful technology implementation projects.
Over the last many years HB Educational Services has successfully trained several hundreds of enterprise severs administrators who have qualified in the MCITP certification exam.
Juniper Networks is in the business of network innovation. From devices to data centers, from consumers to cloud providers, Juniper Networks delivers the software, silicon and systems that transform the experience and economics of networking.
Juniper Chassis Cluster Configuration with SRX-1500sAshutosh Patel
This article identifies resources for understanding, configuring and verifying the "High availability or Chassis cluster" (in Juniper's term) on Juniper's SRX 1500 Series firewall. You can use this article as a reference to configuring the chassis cluster on your SRX firewalls. This configuration has been tested and proven to be working as expected. I hope this help you.
Going Purple : From full time breaker to part time fixer: 1 year later Chris Gates
A little over a year ago I made the transition from external security consultant to internal offensive security engineer at Facebook. I went from a full time breaker to part time fixer. This talk is aimed at providing lessons learned and documenting the mindset changes I've made over the last year that I feel can be used by the industry as a whole. I've broken the lessons learned into three primary buckets; Red, Blue, and Purple and the talk will hopefully bring value to anyone working in their respective bucket or assist in their creation/continuing of purple teaming at their company.
University of the Highlands and Islands extents ubiquitous Wi-Fi services acr...Juniper Networks UKI
The University of the Highlands and Islands is unusual in that it covers an
extended geographic region (about half of Scotland, or a sixth of the land
area of the UK). It has almost 100 campus locations supporting about 7,500
Higher Education students and 25,000 Further Education students, and is
based across a wide range and variety of sites, from large campuses supporting
thousands of students, down to single room locations in remote rural areas and
on remote islands.
These broad-ranging geographic variations leave the university with
some unique IT challenges. Available bandwidth can vary hugely between
locations—some close to fiber-optic infrastructure and others in remote
corners of the region where even broadband speeds are low. Resiliency of
those communication links can be another challenge, as diverse routes can
be impractical, and sub-sea cables or radio links are more exposed than
land-based communication systems. Not least, the university must provide a
consistent service across all of its locations, whether they support a handful of
students or thousands.
This is a brief overview of the Meru Networks wireless LAN solution. Please contact me if you would like more information or a personal presentation specific to your needs.
AirTight Networks and AirTight Senior Technical Engineer, Robert Ferruolo, will be addressing how 802.11ac will shape your thought process for network planning. Robert will address the implications of 802.11ac on network design methodology. He will also map 802.11ac to use cases of your business and give a glimpse into our new access point calculator/estimator.
Maximizing Performance using 3.5 GHz Fixed Wireless Broadbandjerianasmith
Alpha Wireless’ innovative advanced antenna technology provides maximum capacity efficiency and often antenna count reduction. These technologies decrease interference. They also provide options for single-beam 4x4 MIMO per sector face and dual-beam support of 2x2 MIMO per beam.
It’s clear that wireless networks bring a lot of benefits to the enterprise. Today, BYOD creates a lot of new opportunities, but also opens your network to new risks and vulnerabilities. With Juniper Networks extensive product portfolio, Kappa Data can offer robust and reliable wireless LAN solutions that ideally can be combined with Juniper’s SSL solutions using the new JUNOS Pulse client for mobile users.
Testing Hybrid Commercial Networks for Bublic Safety Mobile BroadbandJuhani Lehtonen
The current discussion concerning broadband access to public safety mobile units has been active and ongoing for years. This document shows the results of several selected pilots or tests conducted in Europe and the USA and suggests that hybrid commercial network usage is a viable solution also.
Surfing the Tsunami: Residence Hall Wireless DevicesPhillip Kluttz
Keeping up with the explosion of wireless devices connecting in the residence halls on campus, Appalachian State University and UNC Greensboro have developed multi-pronged approaches to support, maintain, and grow their wireless deployments. Working closely with our client support groups and with help from the hardware manufacturer, both Universities have overcome severe problems. We’ll discuss our successes, how we relieved pain points, and how we are planning for a future without Ethernet.
Many more useful measurements could be taken in discrete manufacturing and process plant applications without the expense and labor related to wire and cables for some hard-to-reach applications. Wiring in manufacturing or process-plant settings, with the accompanying complex supporting infrastructure and labor, drops from high ceilings or trenching can add 10-fold or more to installation costs. It doesn’t have to be that way. Industrial wireless technologies can provide cost-effective reliable communications. Key considerations and application examples will be discussed by Dan Capano, owner and president of Diversified Technical Services Inc. Mark T. Hoske, content manager and editor with Control Engineering, will explain wireless trends based on Control Engineering research and will moderate the webcast.
Successful Strategies for Secure, Private and Reliable Wireless Networksjimrapoza
With the rise of mobile platforms, the increasing numbers of smartphones or tablet endpoints, and increasing needs for secure and private wireless connectivity, building and managing the networks that make it possible to control the mobile onslaught is key for any successful organization. This webinar will detail the course that leading organizations take in optimizing the performance of their wireless networks, securing both the network edge and core, accommodating the influx of tablets and smartphones (including the trend of BYOD or Bring Your Own Device), and smoothly integrating with next-generation wireless broadband LTE and 4G networks. We’ll also find out how one organization used Best-in-Class practices to implement and manage their own secure private wireless network.
IPQ is an application-embeddable QoS solution that addresses the network quality challenges and opens up the huge opportunities where real-time apps, mobility, and the need for multiple simultaneous networks intersect.
Extending applications securely to wireless health workers.Wheatstone
Delivered by Peter George at the Mobilizing the Clinician conference at Canary Wharf, London - December 2006. The presentation focussed on how IPSec and SSL VPN technology fails to meet the needs of wireless workers and how this effects clinicians.
VMworld 2013: Network Function Virtualization in the Cloud: Case for Enterpri...VMworld
VMworld 2013
Alka Gupta, VMware
Sanjay Aiyagari, VMware
Allon Dafner, Amdocs
Iain Woolf, Alcatel-Lucent
Artur Tyloch, Nokia Solutions and Networks
Learn more about VMworld and register at http://www.vmworld.com/index.jspa?src=socmed-vmworld-slideshare
802.11n Technology - Presented by Meru Networks and DTCDigitalTelecom
This is the Webinar DTC and Meru Networks hosted on 8/25.
Discussed is 802.11n technology and How Meru Networks addresses of the problems seen in the market with other Wireless Network providers.
Webinar NETGEAR - Linee guida per il disegno di una rete wireless a elevate p...Netgear Italia
Alcuni suggerimenti per effettuare:
- Analisi preliminare
- Sopralluogo
- Pianificazione della rete
- Proposta della soluzione consigliata
Some advices to run:
- Preliminary Study
- Surveys
- Network Design
- Solution proposal
DevOps and Testing slides at DASA ConnectKari Kakkonen
My and Rik Marselis slides at 30.5.2024 DASA Connect conference. We discuss about what is testing, then what is agile testing and finally what is Testing in DevOps. Finally we had lovely workshop with the participants trying to find out different ways to think about quality and testing in different parts of the DevOps infinity loop.
Dev Dives: Train smarter, not harder – active learning and UiPath LLMs for do...UiPathCommunity
💥 Speed, accuracy, and scaling – discover the superpowers of GenAI in action with UiPath Document Understanding and Communications Mining™:
See how to accelerate model training and optimize model performance with active learning
Learn about the latest enhancements to out-of-the-box document processing – with little to no training required
Get an exclusive demo of the new family of UiPath LLMs – GenAI models specialized for processing different types of documents and messages
This is a hands-on session specifically designed for automation developers and AI enthusiasts seeking to enhance their knowledge in leveraging the latest intelligent document processing capabilities offered by UiPath.
Speakers:
👨🏫 Andras Palfi, Senior Product Manager, UiPath
👩🏫 Lenka Dulovicova, Product Program Manager, UiPath
Observability Concepts EVERY Developer Should Know -- DeveloperWeek Europe.pdfPaige Cruz
Monitoring and observability aren’t traditionally found in software curriculums and many of us cobble this knowledge together from whatever vendor or ecosystem we were first introduced to and whatever is a part of your current company’s observability stack.
While the dev and ops silo continues to crumble….many organizations still relegate monitoring & observability as the purview of ops, infra and SRE teams. This is a mistake - achieving a highly observable system requires collaboration up and down the stack.
I, a former op, would like to extend an invitation to all application developers to join the observability party will share these foundational concepts to build on:
Essentials of Automations: Optimizing FME Workflows with ParametersSafe Software
Are you looking to streamline your workflows and boost your projects’ efficiency? Do you find yourself searching for ways to add flexibility and control over your FME workflows? If so, you’re in the right place.
Join us for an insightful dive into the world of FME parameters, a critical element in optimizing workflow efficiency. This webinar marks the beginning of our three-part “Essentials of Automation” series. This first webinar is designed to equip you with the knowledge and skills to utilize parameters effectively: enhancing the flexibility, maintainability, and user control of your FME projects.
Here’s what you’ll gain:
- Essentials of FME Parameters: Understand the pivotal role of parameters, including Reader/Writer, Transformer, User, and FME Flow categories. Discover how they are the key to unlocking automation and optimization within your workflows.
- Practical Applications in FME Form: Delve into key user parameter types including choice, connections, and file URLs. Allow users to control how a workflow runs, making your workflows more reusable. Learn to import values and deliver the best user experience for your workflows while enhancing accuracy.
- Optimization Strategies in FME Flow: Explore the creation and strategic deployment of parameters in FME Flow, including the use of deployment and geometry parameters, to maximize workflow efficiency.
- Pro Tips for Success: Gain insights on parameterizing connections and leveraging new features like Conditional Visibility for clarity and simplicity.
We’ll wrap up with a glimpse into future webinars, followed by a Q&A session to address your specific questions surrounding this topic.
Don’t miss this opportunity to elevate your FME expertise and drive your projects to new heights of efficiency.
A tale of scale & speed: How the US Navy is enabling software delivery from l...sonjaschweigert1
Rapid and secure feature delivery is a goal across every application team and every branch of the DoD. The Navy’s DevSecOps platform, Party Barge, has achieved:
- Reduction in onboarding time from 5 weeks to 1 day
- Improved developer experience and productivity through actionable findings and reduction of false positives
- Maintenance of superior security standards and inherent policy enforcement with Authorization to Operate (ATO)
Development teams can ship efficiently and ensure applications are cyber ready for Navy Authorizing Officials (AOs). In this webinar, Sigma Defense and Anchore will give attendees a look behind the scenes and demo secure pipeline automation and security artifacts that speed up application ATO and time to production.
We will cover:
- How to remove silos in DevSecOps
- How to build efficient development pipeline roles and component templates
- How to deliver security artifacts that matter for ATO’s (SBOMs, vulnerability reports, and policy evidence)
- How to streamline operations with automated policy checks on container images
Securing your Kubernetes cluster_ a step-by-step guide to success !KatiaHIMEUR1
Today, after several years of existence, an extremely active community and an ultra-dynamic ecosystem, Kubernetes has established itself as the de facto standard in container orchestration. Thanks to a wide range of managed services, it has never been so easy to set up a ready-to-use Kubernetes cluster.
However, this ease of use means that the subject of security in Kubernetes is often left for later, or even neglected. This exposes companies to significant risks.
In this talk, I'll show you step-by-step how to secure your Kubernetes cluster for greater peace of mind and reliability.
Le nuove frontiere dell'AI nell'RPA con UiPath Autopilot™UiPathCommunity
In questo evento online gratuito, organizzato dalla Community Italiana di UiPath, potrai esplorare le nuove funzionalità di Autopilot, il tool che integra l'Intelligenza Artificiale nei processi di sviluppo e utilizzo delle Automazioni.
📕 Vedremo insieme alcuni esempi dell'utilizzo di Autopilot in diversi tool della Suite UiPath:
Autopilot per Studio Web
Autopilot per Studio
Autopilot per Apps
Clipboard AI
GenAI applicata alla Document Understanding
👨🏫👨💻 Speakers:
Stefano Negro, UiPath MVPx3, RPA Tech Lead @ BSP Consultant
Flavio Martinelli, UiPath MVP 2023, Technical Account Manager @UiPath
Andrei Tasca, RPA Solutions Team Lead @NTT Data
UiPath Test Automation using UiPath Test Suite series, part 3DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 3. In this session, we will cover desktop automation along with UI automation.
Topics covered:
UI automation Introduction,
UI automation Sample
Desktop automation flow
Pradeep Chinnala, Senior Consultant Automation Developer @WonderBotz and UiPath MVP
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Accelerate your Kubernetes clusters with Varnish CachingThijs Feryn
A presentation about the usage and availability of Varnish on Kubernetes. This talk explores the capabilities of Varnish caching and shows how to use the Varnish Helm chart to deploy it to Kubernetes.
This presentation was delivered at K8SUG Singapore. See https://feryn.eu/presentations/accelerate-your-kubernetes-clusters-with-varnish-caching-k8sug-singapore-28-2024 for more details.
Welocme to ViralQR, your best QR code generator.ViralQR
Welcome to ViralQR, your best QR code generator available on the market!
At ViralQR, we design static and dynamic QR codes. Our mission is to make business operations easier and customer engagement more powerful through the use of QR technology. Be it a small-scale business or a huge enterprise, our easy-to-use platform provides multiple choices that can be tailored according to your company's branding and marketing strategies.
Our Vision
We are here to make the process of creating QR codes easy and smooth, thus enhancing customer interaction and making business more fluid. We very strongly believe in the ability of QR codes to change the world for businesses in their interaction with customers and are set on making that technology accessible and usable far and wide.
Our Achievements
Ever since its inception, we have successfully served many clients by offering QR codes in their marketing, service delivery, and collection of feedback across various industries. Our platform has been recognized for its ease of use and amazing features, which helped a business to make QR codes.
Our Services
At ViralQR, here is a comprehensive suite of services that caters to your very needs:
Static QR Codes: Create free static QR codes. These QR codes are able to store significant information such as URLs, vCards, plain text, emails and SMS, Wi-Fi credentials, and Bitcoin addresses.
Dynamic QR codes: These also have all the advanced features but are subscription-based. They can directly link to PDF files, images, micro-landing pages, social accounts, review forms, business pages, and applications. In addition, they can be branded with CTAs, frames, patterns, colors, and logos to enhance your branding.
Pricing and Packages
Additionally, there is a 14-day free offer to ViralQR, which is an exceptional opportunity for new users to take a feel of this platform. One can easily subscribe from there and experience the full dynamic of using QR codes. The subscription plans are not only meant for business; they are priced very flexibly so that literally every business could afford to benefit from our service.
Why choose us?
ViralQR will provide services for marketing, advertising, catering, retail, and the like. The QR codes can be posted on fliers, packaging, merchandise, and banners, as well as to substitute for cash and cards in a restaurant or coffee shop. With QR codes integrated into your business, improve customer engagement and streamline operations.
Comprehensive Analytics
Subscribers of ViralQR receive detailed analytics and tracking tools in light of having a view of the core values of QR code performance. Our analytics dashboard shows aggregate views and unique views, as well as detailed information about each impression, including time, device, browser, and estimated location by city and country.
So, thank you for choosing ViralQR; we have an offer of nothing but the best in terms of QR code services to meet business diversity!
Smart TV Buyer Insights Survey 2024 by 91mobiles.pdf91mobiles
91mobiles recently conducted a Smart TV Buyer Insights Survey in which we asked over 3,000 respondents about the TV they own, aspects they look at on a new TV, and their TV buying preferences.
11. High Density Wi-Fi
High Density is the new normal
Wireless is the edge network for enterprises
Explosion of mobile devices
BYOD
Cellular offload
WLANs are being pushed to their limits
demand for wireless access is exploding
technology is improving but spectrum is limited
Core Wi-Fi technology is very mature
Must design WLAN deployments for high density
Subtle changes in system design can make large
differences in system performance
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12. Testing Approach
Test with real clients in a real environment
Over the air testing
Typical clients
Repeatable tests
Ixia Chariot scripts
High Throughput TCP tests push system to limit
Consistent configuration for WLAN infrastructure
Same locations, channels and power levels
Consistent configuration for clients
Tools to observe system behavior
Packet capture, spectrum analyzer
Controller system logs, Chariot results
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13. Important Metrics
System performance is affected by subtle differences
in high density WLAN features and configuration
Load Balancing and Band Steering
How are clients distributed across the APs?
Utilization
What is channel utilization? Are all channels used effectively?
Fairness
Are all clients getting fair access to the system?
Error Rate
Retry Rate
If retries become too high system can collapse.
Client behavior
Do laptops get better service than smartphones?
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14. Test Setup
Facility
1000 seat auditorium in Sunnyvale, CA
Clean RF environment
Configured for 300 seats in theatre arrangement
Client Devices
300 real devices
Mix of iDevices, PCs, Macs, Android, tablets
and smartphones
Traffic generation tool installed on each device
Network
6 WLA532 3x3
3-stream 11n APs
2 WLC880 controllers
EX Virtual Chassis
SRX Cluster
14 Copyright Novarum 2013
15. Client Configurations
A variety of clients - smartphones, laptops, tablets
Three different client populations - All, Half, Third
Auditorium style seating - row letter, seat number
Each client machine is assigned a name and location that never changes,
same client in same seat
Evenly distributed throughout the space
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Channel Configuration
16. Overall Results
Maximum aggregate
throughput was 483 MBPs
for this configuration
We saw throughput over
625 Mbps when using more
5 GHz channels
For the tests generating the
highest load, “BiDir” and
“Max Thruput”, peak
system capacity with half
client load
Throughput declined
with All Clients
Gradual decline
Stable system performance
at the highest load
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#
Clients
BiDir
Thruput
Max
Thruput
Low
Thruput
All 302 423 433 311
Half 156 479 483 312
Third 95 454 442 231
17. Detailed Results
Max Throughput, Half Clients
Chariot throughput results
Each line is throughput
results for a TCP stream
156 clients with 221
separate streams in this test
Low error rate
Most streams under
4 Mbps
Throughput fairly even
across all of the
clients/streams
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18. Detailed Results
Max Throughput, Half Clients
Channelyzer screen
captures show channel usage
All 5 GHz channels
are being used
Channel 165 is shared
by 2 APs and is only 20 MHz
Band steering worked well
2.4 GHz channels were almost
fully utilized in all of the tests
Channel 44+ had higher utilization
also had higher retry rate...
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19. Overall Observations
Error rate rises with increasing
client load as expected
Retry rate remains fairly flat with
increasing client load
This is surprising and positive
System is stable under very high load
Some clients have higher retry rates
Win7 and Win8 had very high retry
rates on most tests
Mobile clients
surprisingly good
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