Five Ten Minute Facts about Packet Timing (sorry this one needs to be a little longer)In my last post I talked about the behaviors that timing equipment should exhibit to achieve resilience in the face of adverse conditions, according to the draft … [Continue reading]
Five-minute facts about packet timingA while back I posted on the start of an standards development project: IEEE 1952, or P1952 as they call it in the IEEE standards world. The P stands for project, and that means that it has not yet grown up to … [Continue reading]
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]