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Forum Replies

  1. Hi
    Due to high root dispersion , NTP clock and local clock have a time difference . Please suggest how to troubleshoot root dispersion .

  2. Hello Sumit

    Root dispersion is a rough estimate of of how much the local time has drifted away from some reference time. This reference time is often referred to as the root source. Root dispersion occurs when there is some malfunction in the time source. A disruption in service or a bad network connection can cause a steady increase in root dispersion. For Cisco IOS devices, any root dispersion in excess of one second will cause an NTP association to fail.

    Root dispersion is also included in NTP updates so that NTP clients receiving them can choose to use

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