PLANET WGS3-2820 - Manual (Page 91)

User’s Manual of WGS3-2820/WGS3-5220
91
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.
。 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.