Brocade Mobility Access Point System Reference Guide (Supp Manual de usuario descargar pdf (Pagina 836)

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NTP Status

Network Time

To view the Network Time statistics of an access point:

1. Select the Statistics menu from the Web UI.

2. Select System from the navigation pane (on the left-hand side of the screen). Expand a RF

Domain and select one of its connected access points.

3. Select Network Time.

FIGURE 88 Access Point - NTP Status screen

The NTP Status tab displays by default with the following information:

Clock Offset

Displays the time differential between the access point’s time and its NTP resource’s time.

Frequency

Indicates the SNTP server clock’s skew (difference) for the access point.

Leap

Indicates if a second is added or subtracted to SNTP packet transmissions, or if transmissions

are synchronized.

Precision

Displays the precision of the time clock (in Hz). The values that normally appear in this field

range from -6, for mains-frequency clocks, to -20 for microsecond clocks.

Reference Time

Displays the time stamp the access point’s clock was last synchronized or corrected.

Reference

Displays the address of the time source the access point is synchronized to.

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 its reference clock. The reference

clock is the clock used by the NTP server to set its own clock.

Stratum

Displays how many hops the access point is from its current NTP time resource.

Refresh

Select the Refresh button to update the screen’s statistics counters to their latest values.

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