Qosium is a software for passive Quality of Service (QoS) and Quality of Experience (QoE) performance measurement and monitoring. No matter whether you use wired or wireless networks, Qosium lets you discover the real performance in real time.

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Passive QoS Measurement

Qosium takes you to a new level in measurement and analysis of network performance. The measurements are passive, which does not cause overhead to networks. Passive measurement means that the real existing application traffic is measured, instead of generating test traffic to be measured to the network. This reveals the true performance for currently active applications using the network.

Qosium is a solution for network administrators, network testing actors, application and solution developers, and device manufacturers. The same solution fulfils even the strictest requirements of different industry and logistics fields. For example, it enables monitoring and confirming that SLA agreements in terms of network performance are met. Industry robots and IoT devices can be connected reliably and with quality that satisfies their applications. If your business is to evaluate network performance, Qosium allows you to verify the performance with actual applications used without need for generating artificial traffic for measuring.

Qosium helps network administrators understand and visualize network performance, which facilitates locating bottlenecks and problem areas in networks. Qosium's output can also be used to trigger, for example, different kind of quality-driven alerts and actions. Network devices can be made more intelligent and end-user friendly. For example, in wireless mobility management, why rely only on signal strength criterion, which doesn’t reflect application quality well, as the real application quality can also be made available.

How It Works

Qosium Probe is a light-weight measurement agent, which is installed to network devices from which QoS is desired to be measured. Network devices can practically be anything that allow installing new software, including application servers, routers, switches, mobile devices, and IoT devices. Measurement can be carried out in a single point. However, all the features of Qosium come into use when measurement is between multiple points. Multipoint measurement enables measuring QoS performance end-to-end and over any part between.

Qosium measurement is initiated with a control software that connects to a QMCP interface of Qosium Probes. Kaitotek provides control software, like Qosium Scope, but it’s possible to implement your own one or integrate measurement as part of your existing network management solution. Kaitotek provides a simple API with example code to help integration and get access to all Qosium measurement features.

Qosium Scope is an analyzer for creating, controlling, and parameterizing Qosium measurements. In addition, Scope collects and visualizes results. All the features of Qosium are available on Qosium Scope.

Qosium Scope Lite is a command line tool with same features than the graphical Qosium Scope. Only the real-time results monitoring is more limited in the lite version. Scope Lite is especially suitable for constrained systems and creating measurements through scripting.

Qosium Storage is a dedicated database server optimized for storing Qosium measurement results. Storage is especially useful when results data grows large and accessing the data is wanted to be centralized. Qosium Storage is not included in the basic delivery of Qosium, but delivered upon request.

Support for QoE

Qosium Probe is a QoS and traffic flow measurement solution, but it includes also algorithms for evaluating QoE based on QoS parameters measured. Scientifically proved and user-test-based algorithms for accurate QoE evaluation of video and VoIP are integrated. In addition, also a generic QoE algorithm is included, which allows users to specify their own QoS thresholds for obtaining a single QoE value about current quality. No more monitoring of different QoS parameters separately, but the actual quality can be seen through a single value.

Measurement Results

All statistics are collected in both directions, meaning that sent and received traffic can be evaluated separately. The results can be averaged or evaluated accurately per packet.

The most commonly used statistics of Qosium include:

QoS statistics:

  • Packet loss
  • Delay
  • Jitter (delay variation)
  • Connection break statistics

Traffic statistics:

  • Load
  • Volume of data
  • Packet sizes

Flow statistics:

  • Traffic flows traversing measurement node
  • Per flow: load, duration, transmitted data, etc.

QoE (pseudo-subjective analysis)

  • VoIP and video quality with PSQA in the MOS scale
  • Generic QoE algorithm, which allows users to define their own QoS threshold values

In addition, Qosium measures a number of other parameters and optionally has a full remote packet capturing capability.