Talent Management Solutions Clock Synchronization

Abstract

The clocks in the Talent Management Solution systems are synchronized using the following Network Time Protocol (NTP) servers:

• US Domains: (2x.kenena.com and 2x-staging.kenexa.com): time.nist.gov

• EU Domains: (2x-dc2.kenena.com and 2x-dc2-staging.kenexa.com): ie.pool.ntp.org

Network Time Protocol (NTP) is an Internet protocol used to synchronize the clocks of computers to some time reference. This is very important for monitoring computer network activities.

Clock synchronization

There are several problems that occur as a result of clock rate differences. Clock synchronization coordinates otherwise independent clocks. Even when initially set accurately, real clocks will differ after some amount of time due to clock drift, caused by clocks counting time at slightly different rates.

Network Time Protocol

The Network Time Protocol (NTP) is a networking protocol for clock synchronization between computer systems over packet-switched, variable-latency data networks.

NTP is intended to synchronize all participating computers to within a few milliseconds of Coordinated Universal Time (UTC). It uses the intersection algorithm to select accurate time servers and is designed to mitigate the effects of variable network latency. NTP can usually maintain time to within tens of milliseconds over the public Internet, and can achieve better than one millisecond accuracy in local area networks under ideal conditions. Asymmetric routes and network congestion can cause errors of 100 ms or more.