Why test on a 'Per flow' basis?
Next Generation Networks (NGN) and Applications are constantly pushing network boundaries in terms of Quality of Service (QoS) and Quality of Experience (QoE). Delivering QoS at the highest level correlates to the individual end user application QoE performance. ‘Per flow’ test and measurement is the only mechanism to guarantee performance at these levels, on this granularity.
Delivering real world proof of concept, demonstration and testing of NGN environments requires stateful traffic emulation, with the most realistic traffic flows representing actual deployments of several thousand individual clients utilizing many application types, over common services such as DHCP / PPPoE / VLAN Tagging is necessary.
DHCP / PPPoE / VLAN Tagging sessions are critical enablers for many services, not forgetting the scalable demand on current access network segments of several thousand subscribers. The services delivered in these sessions (Voice, Video or Data) are interactive by nature with functionality that is critical to defining QoE performance.
As individuals we are different, therefore there is a high probability that no two subscribers are likely to use the same service in the same manner or less likely to use the same interactive features in a similar manner concurrently. Next Generation Networking has advanced test requirements, the blanket test or the one shoe fits all, is no longer a feasible measurement of performance.
The most effective method of defining the performance limitations of Next Generation Networks is to build, test and measure on a Per Client ‘Per flow’ basis. Emulate stateful clients with multiple unique individual applications such as voice, video and data, emulate and measure performance of real world user scenarios with meaningful end user activity.
diversifEye benefits users by enabling emulation, control and performance measurements on a Per Flow basis. diversifEye differs from other macro traffic generators as it was developed from the ground up as a Reality Based Stateful Traffic Emulator. diversifEye was designed so that each application flow is treated as a unique individual element.
Why diversifEye Per flow converged IP Network Test Systems
Deploying and testing converged IP networks such as the Triple Play of video, voice and data is a challenging undertaking. Applications such as IPTV, video on demand, voice and time sensitive data require both a network level QoS (Quality of Service) assessment along with a highly granular QoE (Quality of Experience) analysis right down to the individual subscriber or viewer level.
Analyzing converged IP infrastructure and applications on a per flow basis will identify some of the following key issues.
- What is the typical IPTV subscriber quality of experience for video and channel changing rate?
- Increasing subscriber numbers, how is individual and collective Video or Voice QoS/QoE affected?
- How will existing applications be affected with the addition of new priority traffic loads?
- Modifying existing infrastructure settings, will this alter existing subscriber QoE?
- Is network security an issue, what type of attacks will affect subscriber QoE?
- How is user QoE effected by the introduction of a network attack?
- What are the practical limitations to guarantee QoS for subscriber traffic?
- How will latency affect QoE on time sensitive applications such as IPTV, VoD or VoIP?
- What is the maximum throughput of the device, what limitations exist for IPTV/VoIP?
- QoS priority settings, what impact do the settings have on subscriber QoE?
- Is there a limitation to the sustained connections before and during a security attack?
To understand where diversifEye may be utilized, or the types of tests undertaken with diversifEye please check out our
Sample Test Scenarios guide
.
diversifEye™is a fully integrated, highly scalable hardwareand software platform used in ‘Per flow’ traffic injection and performance analysis. diversifEye provides QoS/QoEanalysis on a per subscriber basis. To understand more about‘Per flow’, take a moment to read the
functionality Ovierview
Software Overview
The software components are easy to use right from the word go,installation takes just a few minutes. In addition, diversifEye isshipped with a complete range of software modules and sample test casescovering a range of application scenarios. In general, a typical usercan begin configuring and running tests in less than an hour.
diversifEye’s GUI client is noteworthy for its ease of usewhile offering full automation and batch testing functions through thediversifEye Job function or scripting interface. diversifEye can beintegrated as part of larger test system with full compliance withautomation standards e.g. Tesla Alliance.
diversifEye allows users to easily generate fully automated reports andstatistics, offering both real time and offline processing of resultsboth during testing and post analysis. Users have the ability togenerate reports in a number of formats in both graphical and tabularformats.
The diversifEye software package provides users with a completelyintegrated suite of applications and application activity for the fullrange of L2-7 testing scenarios. Emulate thousands of stateful flows.
Test with real world network activity:
1) PC users sending email with attachments, while browsing the web.
2) STBs downloading EPGs, on completion requesting default channels.
3) VoIP end points registering with call management facilities, then completing a call.
4) VoD clients requesting movies, fast forward, rewinding to the action sequence.
At the same time as emulating the activity diversifEye provides live reporting on each of the flows performance an example is how long it takes to send the email, how fast a channel zap is, how quickly a call can be put through, how long it takes to jump forward in the movie.
To learn more about diversifEye’s software functionality check out the PDF
Shenick diversifEye Software Overview
Hardware Overview
Available Interface Cards Include-
- Gig Ethernet Dual Media (10/100/1000)
- 10 Gig Ethernet (Pluggable XFP,SR/LR )
For more information on 10GbE stateful emulation and performance measurements see [diversifEye10G]
To learn more about diversifEye’s hardware download the PDF diversifEye
Hardware Overview
Shenick provides online tutorials and demonstrations in support of the diversifEye software package, enabling users to quickly adopt diversifEye as the test system of choice.
Per flow Converged IP Network Test System
We would only be to happy to demonstrate Shenick diversifeye to see if it meets your requirements. We can coordinate this for you so that you can determine if this product meets your performance testing needs.
Please click here to
sign up for a demonstration or evaluation
and we will get in touch with you.
