117
Configuring System Information
EdgeSwitch
™
Administration Guide
Ubiquiti Networks, Inc.
SNTP Global Configuration
Use the
SNTP Global Configuration
page to view and adjust SNTP parameters. To display the page, click
System
>
Advanced Configuration
>
SNTP
>
Global Configuration
in the navigation menu.
SNTP Global Configuration
SNTP Global Configuration Fields
Field
Description
Client Mode
Use drop-down list specify the SNTP client mode, which is one of the following modes:
•
Disable
SNTP is not operational. No SNTP requests are sent from the client nor are any received
SNTP messages processed.
•
Unicast
SNTP operates in a point to point fashion. A unicast client sends a request to a designated
server at its unicast address and expects a reply from which it can determine the time and,
optionally the round-trip delay and local clock offset relative to the server.
•
Broadcast
SNTP operates in the same manner as multicast mode but uses a local broadcast
address instead of a multicast address. The broadcast address has a single subnet scope while a
multicast address has Internet wide scope.
Port
Specifies the local UDP port to listen for responses/broadcasts. Allowed range is
1
to
65535
. Default
value is
None
. Use the buttons as follows:
Click this button to change the field’s setting.
Click this button to reset the field to the default value.
Unicast Poll Interval
Specifies the interval, in seconds, between unicast poll requests expressed as a power of two when
configured in unicast mode. Allowed range is
6
to
10
. Default value is
6
.
Broadcast Poll Interval
Specifies the interval, in seconds, between broadcast poll requests expressed as a power of two when
configured in broadcast mode. Broadcasts received prior to the expiry of this interval are discarded.
Allowed range is
6
to
10
. Default value is
6
.
Unicast Poll Timeout
Specifies the number of seconds to wait for an SNTP response when configured in unicast mode.
Allowed range is
1
to
30
. Default value is
5
.
Unicast Poll Retry
Specifies the number of times to retry a request to an SNTP server after the first timeout before
attempting to use the next configured server when configured in unicast mode. Allowed range is
0
to
10
. Default value is
1
.
Number of Servers Configured
Specifies the number of current valid unicast server entries configured for this client.
Use the buttons to perform the following tasks:
• If you change any of the settings on the page, click
Submit
to apply the changes to system.
• Click
Refresh
to refresh the page with the most current data from the switch.
To retain the changes across the switch’s next power cycle, click
System
>
Configuration Storage
>
Save
.
