Etec PT-8505G, Руководство пользователя

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4 Ports 11g Wireless ADSL2/2+ Router 55
4.4.4 Advanced – SNTP
SNTP:
SNTP (Simple Network Timing Protocol) is a protocol used to synchronize the system time to the
public SNTP servers. It uses the UDP protocol on port 123 to communicate between clients and servers.
Place a check at Enable SNTP to enable the SNTP functionality.
When the SNTP feature is enabled, your 4 Ports 11g Wireless ADSL2/2+ Router will start querying for
the time clock information from the primary SNTP server. If it fails to get a valid response within the “Timeout”
period, it will try for “Retry” number of times, before moving to the Secondary SNTP server. If it fails to get a
valid response from Secondary STNP server within valid retry times, it starts querying Tertiary SNTP server.
If it fails to get a valid response from all the servers, then the program stops. When a valid response is
received from one of the server, the program sleeps for “Polling Interval” amount of minutes, before starting
the whole process again.
Enable SNTP:
Place a check to enable SNTP feature.
Primary SNTP Server:
The IP address or the host name of the primary SNTP server.
Secondary SNTP Server:
The IP address or the host name of the secondary SNTP server.
Tertiary SNTP Server:
The IP address or the host name of the tertiary SNTP server.
Timeout:
A time limit for an operation. If the 4 Ports 11g Wireless ADSL2/2+ Router failed to
connect to a SNTP server within the “Timeout” period, it will retry the connection.
Polling Interval:
The length of time (In Minutes) the 4 Ports 11g Wireless ADSL2/2+ Router
retrieves the time from the SNTP Server. Time between a successful connection with a SNTP
server and a new attempt to connect to an SNTP server.