Cisco Cisco Identity Services Engine Express License Bundle Troubleshooting Guide
dispersion of one second:
Here is the response from the server, which has a root dispersion that is greater than ten seconds:
As a result, this is not accepted, which causes the ISE to drop the request and continue with the
local time source.
local time source.
Root dispersion is a number that indicates the maximum error relative to the primary reference
source at the root of the synchronization subnet. It is increased by every NTP server. By default,
the Microsoft server sets the value to ten seconds only when its own local time source is used (in
order to indicate that it is not a reliable source of time). When the Microsoft NTP server is
configured with an external NTP, this value is derived from the server and the problem does not
source at the root of the synchronization subnet. It is increased by every NTP server. By default,
the Microsoft server sets the value to ten seconds only when its own local time source is used (in
order to indicate that it is not a reliable source of time). When the Microsoft NTP server is
configured with an external NTP, this value is derived from the server and the problem does not