12 sntp – PLANET WGS3-24000 User Manual
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4.2.12 SNTP
4.2.12.1 Global Configuration
Figure 4-2-59
SNTP Global Configuration
Configurable Data
。
Client Mode
- Specifies the mode of operation of SNTP Client. An SNTP client may operate in 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.
Default value is Disable.
。
Port
- Specifies the local UDP port to listen for responses/broadcasts. Allowed range is (1 to 65535). Default value is
123.
。
Unicast Poll Interval
- Specifies the number of 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 number of 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.