Five Minute Facts About Packet Timing By Doug Arnold What is with al of these TLVs in the Precision Time Protocol?Let’s start at the beginning, TLV stands for “type, length, value.” It is a general means to extend a PTP message with some extra information for some optional feature or whatever. TLVs are used in many […]
Search Results for: tlvs
The PTP AUTHENTICATION TLV
Five Minute Facts About Packet Timing This is the next installment in our series: what is in the 2019 edition of IEEE 1588. Recently, I posted a discussion about GNSS spoofing, and what to do about it. However, the radio interface is not the only way that a hacker could disrupt the timing on your […]
The Sync Monitor reverse PTP mechanism
Five Minute Facts About Packet Timing By Doug Arnold Since timing is a critical component of many networked systems, there is a desire among network operators to measure the time distribution performance in their networks. This includes logging time compliance for regulations such as MiFID II, as well as well as for general performance monitoring. To […]
What’s in the 2019 edition of 1588: Slave port monitoring
Five Minute Facts About Packet Timing By Doug Arnold Next in the series on What is in the 2019 edition of IEEE 1588 is slave port monitoring, also known as slave event monitoring. Sometimes it is not enough to transfer time accurately from a PTP Grandmaster (GM) to a PTP Slave (slave). Sometimes you also […]
The virtues of clock watching: Why it’s important to monitor your timing network
Five Minute Facts About Packet Timing By Doug Arnold A network architect’s job is never done. It is not enough to design the network, and see that design implemented. You need to keep checking to make sure that everything still works as the network evolves. It’s certainly true for your network-based timing system. First remember […]