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News about Service/Maintenance Test
Ethernet Network Field Tester with ITU-T Y.1564 Support
28 October 2016 - Yokogawa announces an upgrade to its successful lightweight AQ1300 series 1G/10G Ethernet multi-field tester. This rugged handheld device provides comprehensive test functionality in a small and light format. The addition of ITU-T Y.1564 functionality compliments the existing RFC2544 compatible network performance tests. ITU-T Y.1564 mandates that standard tests like throughput, frame loss, latency and packet jitter are executed simultaneously, with multiple services running at the same time.
This allows the measurement of the influence between services, which can affect the network’s ability to maintain Service Level Agreement (SLA) conformance, as well as reducing the time taken to test an Ethernet service.
Two different kinds of test are available to the AQ1300 series testers with ITU-T Y.1564 functionality: a configuration test mode for examining the speed and burst size per contracted service and performance test mode for measuring guaranteed bandwidth of multiple services.
In configuration test mode the AQ1300 performs either a ‘Ramp Test’, whereby the device outputs a gradually increasing volume of signals (ramp) and measures the guaranteed rate and the securing rate or a ‘Burst size’ test in which the device outputs burst of frame signals at regular intervals and measure the burst bandwidth guaranteed size and the burst bandwidth securing size. The AQ1300 provides PASS/FAIL judgement according to specified thresholds of the Information Rate (IR), Frame loss (FL), Frame transfer delay (FTD) and Frame delay variation (FDV).
In performance test mode, the AQ1300 sends frames within the committed information rate (CIR) of selected services at the same time to confirm whether all traffic is sent without being discarded. The test can evaluate the traffic quality for the same period for up to eight services.
Terry Marrinan, VP of sales and marketing at Yokogawa Europe BV, said; “We continually strive to improve and respond to market demand and standards development, so adding support for ITU-T Y.1564 is a logical step that ensures the AQ1300 continues to be the best choice for Ethernet installation and field maintenance testing.”
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