Heiko Gerstung is Managing Director of Meinberg and joined the company in 2004 as a software engineer. He has decades of experience with GNU Linux and during his university time touched other Unix flavors like Solaris and AIX. In addition to his … [Continue reading]
By Andreja Jarc. In a previous post I introduced tests with different IEEE 1588 / PTPv2 configurations where the PTP accuracy of the slave device was measured for each test case. The test cases performed were as follows: A direct link … [Continue reading]
Last month two Chinese researchers gave a presentation titled "Time is on my Side" during the "Hack in The Box" 2016 SecConf event in Amsterdam, NL (https://conference.hitb.org/hitbsecconf2016ams/) . In this presentation, the researchers outlined a … [Continue reading]
Five Minute Facts About Packet Timing By Doug Arnold. In an earlier post I described how boundary clocks and transparent clocks correct for timing errors in the network between the PTP grandmaster and PTP slaves. But what do you do if you don't … [Continue reading]
By Andreja Jarc. This time I prepared some experiments with different IEEE 1588 / PTPv2 configurations where the accuracy of the end device was measured for each test case. In all Test cases a Meinberg M500 IMS (modular platform in a railmount … [Continue reading]
By Andreja Jarc. Synchronized timing is vitally important when many systems work together in a network. Services such as Logfiles, Correlation of Events, User Authentication Mechanisms, Job Scheduling e.g. for backups or Active Directories … [Continue reading]
Five Minute Facts About Packet Timing By Doug Arnold. A while back I posted about the Telecom Profile for Frequency Synchronization, or ITU-T G.8265. In the view of the International Telecommunications Union (ITU), frequency was all they could … [Continue reading]
By Andreja Jarc. The production and demand of electrical power must be the same at all times for stability and optimal operation of railway power grids. If there is too much power it will dissipate as heat or cause an over load at a transform … [Continue reading]
By Andreja Jarc. The timing industry is anxiously waiting for the unavoidable Leap Second Insertion which is announced for this year on June 30, 2015 at UTC midnight. The Leap Second has been introduced by The International Earth Rotation Service … [Continue reading]
By Andreja Jarc. Introduction Meinberg LANTIME servers with a fw 6.17.004 or higher are enhanced with a new NTP monitoring feature. This feature enables monitoring of NTP performance of up to 100 external NTP nodes (servers and clients) attached in … [Continue reading]