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Posts Tagged "Testing"

Developers of connected and autonomous vehicles are exploring the potential of RTK and PPP for precise positioning. This blog explores the need for lab-based simulation of error correction

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Developers of connected and autonomous vehicles must assess how well the vehicle’s antenna receives GNSS signals – and that requires over-the-air testing. This blog looks at the implications.

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Developers of connected and autonomous vehicles must assess how well the vehicle’s antenna receives GNSS signals – and that requires over-the-air testing. This blog looks at the implications.

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Connected autonomous vehicles rely on a battery of sensors for position, navigation and timing. Our new blog series will look at four critical aspects of testing PNT capabilities in the lab.

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Connected autonomous vehicles rely on a battery of sensors for position, navigation and timing. Our new blog series will look at four critical aspects of testing PNT capabilities in the lab.

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By Alain Vouffo On October 30, 2017
Networks
Automotive, testing, GNSS

Last Week, the third WAVE-DSRC plugfest took place in the Bay Area. Organized by the OmniAir Consortium,  with support from several sponsors, including Spirent, over 170 participated from more than 40 different organizations. The event was a real success and marked another milestone in the deployment of 802.11p-based V2X technology to enhance driver safety.

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By Alain Vouffo On October 30, 2017
Networks
Automotive, testing, GNSS

Last Week, the third WAVE-DSRC plugfest took place in the Bay Area. Organized by the OmniAir Consortium,  with support from several sponsors, including Spirent, over 170 participated from more than 40 different organizations. The event was a real success and marked another milestone in the deployment of 802.11p-based V2X technology to enhance driver safety.

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The demands for increased bandwidth in the data center are driving the creation of a new generation of data center switch platforms. These platforms, whether they are top-of-rack (ToR) or aggregation switches, are designed to support hundreds of gigabits/sec per slot—even terabits. 

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The demands for increased bandwidth in the data center are driving the creation of a new generation of data center switch platforms. These platforms, whether they are top-of-rack (ToR) or aggregation switches, are designed to support hundreds of gigabits/sec per slot—even terabits. 

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As Nemertes Research, voke’s ITO (Infrastructure Test Optimization), and Gartner research notes, and numerous other sources observe, implementation of IT initiatives such as data center network design, consolidation, and virtualization represent significant infrastructure and budget commitments that carry considerable risk.

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As Nemertes Research, voke’s ITO (Infrastructure Test Optimization), and Gartner research notes, and numerous other sources observe, implementation of IT initiatives such as data center network design, consolidation, and virtualization represent significant infrastructure and budget commitments that carry considerable risk.

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A manual test team conducts most of its testing directly from a written test plan or tests in an ad-hoc manner. Few if any automation solutions or scripting skills are used by the team. Organizations with manual test teams include: service providers, network equipment manufacturers, network equipment resellers, and enterprise IT departments.

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A test lab is usually complex and comprised of a wide variety of equipment. Equipment may be shared by multiple users across a number of different test beds. Managing and maintaining a test lab can become extremely difficult.

Traditionally a test or lab automation solution is an answer to a productivity challenge. But a test lab automation solution needs to take into account the physical setup of the lab and its test beds, the users of the lab and the tests that need to be performed in the lab. Failure to consider all aspects of the testing environment will typically lead to rework and delays.

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A test lab is usually complex and comprised of a wide variety of equipment. Equipment may be shared by multiple users across a number of different test beds. Managing and maintaining a test lab can become extremely difficult.

Traditionally a test or lab automation solution is an answer to a productivity challenge. But a test lab automation solution needs to take into account the physical setup of the lab and its test beds, the users of the lab and the tests that need to be performed in the lab. Failure to consider all aspects of the testing environment will typically lead to rework and delays.

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Simply put, the network failure threshold is the point at which your network breaks under real-world applications and user bandwidth. So is it better to know that before or after you launch your IT initiative?

To put it another way, from Nemertes Research’s perspective (from their classic issue paper Strategic IT Initiatives need Strategic Testing): “Without proper testing, such strategic initiative can fail with serious unforeseen consequences, including significant hard dollar and opportunity costs.” They also observed the gains expected from an IT initiative can be minimized or erased if the testing is not implemented before an initiative goes live.

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Simply put, the network failure threshold is the point at which your network breaks under real-world applications and user bandwidth. So is it better to know that before or after you launch your IT initiative?

To put it another way, from Nemertes Research’s perspective (from their classic issue paper Strategic IT Initiatives need Strategic Testing): “Without proper testing, such strategic initiative can fail with serious unforeseen consequences, including significant hard dollar and opportunity costs.” They also observed the gains expected from an IT initiative can be minimized or erased if the testing is not implemented before an initiative goes live.

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Simply put, the network failure threshold is the point at which your network breaks under real-world applications and user bandwidth. So is it better to know that before or after you launch your IT initiative?

To put it another way, from Nemertes Research’s perspective (from their classic issue paper Strategic IT Initiatives need Strategic Testing): “Without proper testing, such strategic initiative can fail with serious unforeseen consequences, including significant hard dollar and opportunity costs.” They also observed the gains expected from an IT initiative can be minimized or erased if the testing is not implemented before an initiative goes live.

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Infrastructure Test Optimization (iTO) first appeared a few years ago, and has attracted critical acclaim and a lot of strong advocates, but the full potential of the strategy has yet to be embraced by the global testing community.

Given the competitive landscapes in which companies operate these days it’s more critical than ever to reduce time-to-market and improve product quality. Equally important is generating better returns on investment (RoI).

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Whether you are developing a smartphone for immediate global sale, or designing the Global Navigation Satellite System (GNSS) technology of the future, BeiDou-2 is big news. For those outside the world of GNSS, keeping track of China’s developing satellite constellation—and its developing nomenclature—can be far from easy.

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In the new world of next-generation networks, pretty much every leading network equipment manufacturer (NEM) today has application-awareness built into their products. Whether it’s an application firewall, serving gateway or edge router, they’re all using deep packet inspection (DPI) to look deep into the network traffic to identify the specific application. For example, Cisco has Application Visibility & Control, Juniper has AppSecure, Palo Alto Networks has App-ID, Sandvine ha...

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In our first edition of the Spirent (formerly Mu) App Quadrant, we compared the run-time aspects of the most popular desktop video applications – Netflix, YouTube, Hulu and Amazon Video on Demand – and showed that Netflix is not particularly friendly to both Consumers and Operators. It’s not just the apps – devices matter too! Operators continue to struggle with the unpredictable growth of applications and the devices used to access them. With millions of people runni...

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In our first edition of the Spirent (formerly Mu) App Quadrant, we compared the run-time aspects of the most popular desktop video applications – Netflix, YouTube, Hulu and Amazon Video on Demand – and showed that Netflix is not particularly friendly to both Consumers and Operators. It’s not just the apps – devices matter too! Operators continue to struggle with the unpredictable growth of applications and the devices used to access them. With millions of people runni...

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In our first edition of the Spirent (formerly Mu) App Quadrant, we compared the run-time aspects of the most popular desktop video applications – Netflix, YouTube, Hulu and Amazon Video on Demand – and showed that Netflix is not particularly friendly to both Consumers and Operators. It’s not just the apps – devices matter too! Operators continue to struggle with the unpredictable growth of applications and the devices used to access them. With millions of people runni...

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In our first edition of the Spirent (formerly Mu) App Quadrant, we compared the run-time aspects of the most popular desktop video applications – Netflix, YouTube, Hulu and Amazon Video on Demand – and showed that Netflix is not particularly friendly to both Consumers and Operators. It’s not just the apps – devices matter too! Operators continue to struggle with the unpredictable growth of applications and the devices used to access them. With millions of people runni...

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There’s been a lot of debate recently about the impact of video apps on the network. According to Nielsen, Netflix alone now accounts for 20% of downstream traffic during peak times in the United States. In a previous blog Kowsik explained the behind-the-scenes interactions that are happening unbeknownst to you when you watch a Netflix movie. So that got us thinking – are all the popular video apps as network-intensive as Netflix? Are some video apps more user-friendly with their ban...

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There’s been a lot of debate recently about the impact of video apps on the network. According to Nielsen, Netflix alone now accounts for 20% of downstream traffic during peak times in the United States. In a previous blog Kowsik explained the behind-the-scenes interactions that are happening unbeknownst to you when you watch a Netflix movie. So that got us thinking – are all the popular video apps as network-intensive as Netflix? Are some video apps more user-friendly with their ban...

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There’s been a lot of debate recently about the impact of video apps on the network. According to Nielsen, Netflix alone now accounts for 20% of downstream traffic during peak times in the United States. In a previous blog Kowsik explained the behind-the-scenes interactions that are happening unbeknownst to you when you watch a Netflix movie. So that got us thinking – are all the popular video apps as network-intensive as Netflix? Are some video apps more user-friendly with their ban...

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Personally, as a consumer, I love Netflix, but it hasn’t been the darling of service providers and ISP’s lately. You can read about the Canadian ISP saga here. Our imminent next release of Spirent (formerly Mu) Studio will enable our customers to recreate 1,000,000 concurrent Netflix users watching a movie, so they can understand the impact of their application aware networks. One thing is pretty clear: compared to YouTube, Netflix inflicts so much more pain on the network....

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Personally, as a consumer, I love Netflix, but it hasn’t been the darling of service providers and ISP’s lately. You can read about the Canadian ISP saga here. Our imminent next release of Spirent (formerly Mu) Studio will enable our customers to recreate 1,000,000 concurrent Netflix users watching a movie, so they can understand the impact of their application aware networks. One thing is pretty clear: compared to YouTube, Netflix inflicts so much more pain on the network....

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Let’s face it – wireless can’t match wireline for voice reliability. How many times have you experienced dropped call while in a moving car or train? How many times have you been unable to make a call while the person next to you continues with his or her conversation? And who did you blame? Your device, or your network operator? Consumers are definitely in charge with many choices for mobile devices and network operators. They have shown a willingness to pay for the latest features and...

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Let’s face it – wireless can’t match wireline for voice reliability. How many times have you experienced dropped call while in a moving car or train? How many times have you been unable to make a call while the person next to you continues with his or her conversation? And who did you blame? Your device, or your network operator? Consumers are definitely in charge with many choices for mobile devices and network operators. They have shown a willingness to pay for the latest features and...

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