Wireless/Redundant Edge Services xl Module Management and Configuration Guide WS.02.xx and greater

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Configuring the ProCurve Wireless Edge Services xl Module
Enabling Secure Network Time Protocol (NTP)
Figure 2-98. Special Features > Secure NTP > NTP Associations Screen
The screen includes the following fields:
■ Address—the numeric IP address of the resource providing NTP updates
to the switch
Typically, the NTP system is a peer or server that you have configured as
your Wireless Edge Services xl Module’s neighbor. If you have enabled the
module to act as the master clock, one of the resources is the module’s
internal clock at 127.127.1.0.
■ Reference—the timestamp at which the local clock was last set or cor-
rected
■ Stratum—how many hops the Wireless Edge Services xl Module is from
an NTP time source
The module automatically chooses the NTP resource with the lowest
stratum number. However, it also compares the time reported by several
sources and does not synchronize to a time source whose time is signifi-
cantly different than others, even if its stratum is lower. That is, the module
never synchronizes to a machine that is not synchronized itself.