Five Minute Facts on Packet Timing NTP deployments of larger networks usually have NTP servers connected in a tree structure, such as the one in Figure 1. Note that the Stratum 1 servers typically have a GNSS time source, but the higher Stratum servers do not. Instead, they act as both a server and a […]
DIY NTP message extensions
Five-minute facts about packet timing So, you ‘ve been thinking that NTP messages should have some additional fields, but they’re not in standard. What can you do? You can define your own message extension; that’s what you can do! NTPv4, defined by RFC 5905, defines extensions to NTP messages called Extension Fields (EFs). That is […]