DSL-1500G++ User Manual
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49
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Synchronize Client with NTP Server
1. Click
on
that forces the SNTP client to immediately synchronize the local
time with the server located in the association list (if unicast) or, if anycast is enabled,
initiate an anycast sequence to the network.
Note:
to Synchronize Client with NTP Server, NTP servers, SNTP client mode, and local
time zone should be pre-configured.
Configure SNTP-NTP Server
1.
Type the NTP Sever IP address in the text box of Add NTP Server IP Address, and
then click on
to make it valid.
2.
Type the NTP Sever Hostname in the text box of Add NTP Sever Hostname, and then
click on
to make it valid.
Configure SNTP client mode
1.
Select SNTP Syncroniztion mode(s): This action enables/disables the STNP client in
a particular time synchronous access mode. There are three modes to choose from,
and
each mode has enable and disable options:
a. Unicast
mode:
•
Enable
- the mode uses a unicast server and the IP address or hostname in the
SNTP server association list is used to synchronize the client time with the server.
The SNTP client attempts to contact the specific server in the association in order
to receive a timestamp when the
sntpclient sync
command is issued.
•
Disable
- the unicast server is removed from the association list.
b. Broadcast
mode:
•
Enable
- allows the SNTP client to accept time synchronization broadcast packets
from an SNTP server located on the network, and updated the local system time
accordingly.
•
Disable
- stops synchronization via broadcast mode
c. Anycast
Mode:
•
Enable
- the SNTP client sends time synchronized broadcast packets to the
network and subsequently expects a reply from a valid timeserver. The client then
uses the first reply it receives to establish a link for future sync operations in unicast
mode.
This server will then be added to the server association list. The client ignores any
later replies from servers after the first one is received.