Stratum 0 devices at the very top include atomic clocks, like those in GNSS satellites. The hierarchical system has different layers called strata. NTP, or Network Time Protocol, has been widely adopted as a means of network timekeeping, and it's currently in its fourth major version. Big news breaks concerning Company X, and the financial institution sells those 100 shares not to just one investor but several over the span of a second, but because the institution's servers aren't synchronized with one another, there is no way to tell which buy order came first. Imagine a financial institution that has exactly 100 shares of Company X's stock. Of even greater concern is synchronizing different clients within the same network. Without specialized equipment, your network is suddenly off by the better part of a second from NIST in the US or NPL in the UK. Add in switches, routers, and other network infrastructure, and that tenth of a second multiplies several times over. However, we all know that that ideal world doesn't exist. The speed of light is fast-in a vacuum, a photon could circle our world more than seven times per second-and even though it travels approximately 31 percent slower through a typical optical fiber network, you could easily transmit a single bit of data halfway around the world in less than a tenth of a second.
#Totally reliable delivery service disconnect from server update#
Why can't we just update our computers to the public NTP servers at NIST, which runs one of the world's most accurate clocks, and call it a day? Unfortunately, latency exists everywhere, and it makes perfect synchronization impossible. For financial and scientific institutions, time synchronization must be accurate to a billionth-or in some specific cases, even a trillionth-of a second, but even commercial and industrial organizations are starting to push for synchronization accuracy in the sub-millisecond range. However, it can mean the difference between correctly troubleshooting a conflict in minutes and having no idea why the server is figuratively on fire. Time synchronization serves a fundamental role in any network, but it's too often added as an afterthought.
0 kommentar(er)
