WESM zl Management and Configuration Guide WT.01.28 and greater

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Configuring the ProCurve Wireless Edge Services zl 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 zl 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 corrected
■ Stratum—how many hops the Wireless Edge Services zl 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 significantly
different than others, even if its stratum is lower. That is, the module never
synchronizes to a machine that is not synchronized itself.
■ When—the number of seconds since a message has been received from the
remote resource