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JDSU offers QoE test for IP video

Wed, 09/14/2011 - 8:30am
Brian Santo

JDSU is proposing a test methodology for measuring quality of experience (QoE) when uploading and downloading high-bandwidth content over the Internet.

Every major Ethernet service is addressed, including Ethernet backhaul, Ethernet business services and cloud computing, JDSU said. The testing capabilities have been realized in modules for two of the company's testers.

There are currently few reliable methods for evaluating the quality of service (QoS) or QoE of IP-based video (see “Ensuring quality of service for OTT”). Companies such as JDSU, IneoQuest, Alcatel-Lucent and others have been working diligently to develop sets of metrics to get reliable assessments of over-the-top QoS and QoE.

JDSU said it developed its methodology with two major global network operators it did not identify.

That said, researchers associated with Bell Canada and Deutsche Telekom have collaborated with engineers from JDSU on published papers that address this specific subject.

The methodology is called RFC 6349; it was recently published by the Internet Engineering Task Force (IETF). This methodology includes measuring round-trip time (RTT), bottleneck bandwidth, TCP throughput, buffer delay and other factors that together can be used to make an evaluation of QoE.

Traditional installation methods, including RFC 2544, do not entirely verify the ability of the network to carry high-bandwidth application traffic since only the Ethernet and IP layers are tested, JDSU explained.

JDSU has integrated the methodology in its TrueSpeed automated TCP test solution, available for its Multi-Services Application Module (MSAM) on both the T-BERD/MTS-6000A and T-BERD MTS/8000 products.

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