Brocade Mobility RFS Controller System Reference Guide (Supporting software release 5.5.0.0 and later) - Manual (Page 891)

Brocade Mobility RFS Controller System Reference Guide 879
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Viewing NTP Associations
Network Time
The interaction between the controller or service platform and an SNTP server constitutes an
association. SNTP associations can be either peer associations (the controller or service platform
synchronizes to another system or allows another system to synchronize to it), or a server
associations (only the controller or service platform synchronizes to the SNTP resource, not the
other way around).
To view the NTP associations:
1. Select the Statistics menu from the Web UI.
2. Select a Wireless Controller node from the left navigation pane.
3. Select Network Time and expand the menu to reveal its sub menu items.
4. Select NTP Associations.
FIGURE 95 Wireless Controller - NTP Association screen
Root Delay The total round-trip delay in seconds. This variable can take on both positive and negative values,
depending on relative time and frequency offsets. The values that normally appear in this field
range from negative values (a few milliseconds) to positive values (several hundred milliseconds).
Root Dispersion The difference between the time on the root NTP server and it’s reference clock. The reference
clock is the clock used by the NTP server to set its own clock.
Stratum Displays how many hops the controller or service platform is from its current NTP resource.
Refresh Select the Refresh button to update the screen’s statistics counters to their latest values