5 Minute Facts About Packet TimingYou have a holdover requirement, and you need to select an oscillator from the choices presented to you by your timing equipment vendor. More stable oscillators are better, but they also cost more. You want to know … [Continue reading]
Five-minute facts about packet timinggPTP is the name given to the IEEE 802.1AS profile of PTP. gPTP is only sort of a PTP profile. That is because gPTP is independently specified. In other words, rather than stating that it requires, forbids, … [Continue reading]
Five Minute Facts about Packet Timing After three years off for the pandemic, which felt like thirty, the ISPCS has been meeting in person again. In Vienna in 2022, London in 2023, and this year it will be in Tokyo in October. The … [Continue reading]
Five Minute Facts about Packet Timing When PTPv2 was defined the IEEE 1588 working group recognized that some networks, which could benefit from precise network timing, would not support multicast protocols. So, a unicast version of PTP was … [Continue reading]
By Allan Armstrong and Doug ArnoldThe power grid is experiencing rapid change. Population growth and highly-consumptive industries – datacenters, IC fabs, mining & metal smelting – are driving capacity expansion. Green energy is rushing in to … [Continue reading]
5 Minute Facts About Packet Timing I recently received some questions about Boundary Clocks (BCs) becoming Grandmasters (GMs) from a blog reader sent to my email. Yes, I really answer them. It was especially interesting because we spent a … [Continue reading]
Five Minute Facts about Packet Timing The IEEE Standards Association will soon published IEEE 1588g-2022, an amendment to IEEE 1588-2019. The amendment recommends optional alternative terms for master and slave. The terms selected are: The … [Continue reading]
Five-minute facts about packet timing If you’ve been paying attention, and I know you have, there has been a lot of discussion lately about the fact that the critical infrastructure of the world is dependent on GNSS for position, navigation, and … [Continue reading]
Five-minute facts about packet timingOnce upon a time there was an industry that needed data sharing and time synchronization among devices that were spatially disbursed. So, the industry developed standards for data transfer and timing signals that … [Continue reading]
Five-minute facts about packet timing This is part 2 of a two-part description of the Best Master Clock Algorithm (BMCA). In Part 1 we listed the information that is considered in the BMCA and what the priorities are amongst those … [Continue reading]