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Copyright © 2009-2025 Teledyne LeCroy Xena ApS, Denmark
A parameter that is very relevant for the one-way test is the latency of the path under test. However one-way latency measurements involving two test instruments require that the clock systems of the two instruments are synchronized. Likewise multi-site protocol analysis requires that the clocks of all instruments capturing data packets are synchronized. The same applies when synchronized traffic start on a number of test instruments is required.
Several solutions exist for synchronizing clocks in test instruments (and other devices). Each instrument can be equipped with a Global Positioning System (GPS) receiver, which can give precise, synchronized time information to instruments. Alternatively time synchronization can be based on the Network Time Protocol (NTP) or the Precision Time Protocol (PTP).
XenaTimeSync synchronizes time for the Xena Networks layer 2-3 test solutions XenaBay and XenaCompact. XenaTimeSynch is a flexible and powerful time synchronization solution that supports GPS, PTP and NTP. With XenaTimeSynch the Xena tester acts as a client that is synchronized to a PTP/NTP time server or to the GPS. XenaTimeSynch can also turn a Xena tester into a PTP/NTP time server that can synchronize other testers.
This White Paper explains how syncronized latency measurements can be made with multiple instruments using different synchronization methods, like Global Positioning System (GPS), Precision Time Protocol (PTP) or the Network Time Protocol (NTP).
Xena has won multiple global awards for price/performance and technical innovation. Learn more.
Copyright © 2009-2025 Teledyne LeCroy Xena ApS, Denmark
Understanding Ethernet - from basics to testing & optimization
