Alcatel-Lucent 9500 MXC, Руководство пользователя

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9500 MXC User Manual
3DB 23063 ADAA - Rev 004 July 2007 Vol. IV-12-3
• The server is identified by its IP address. When first configuring the time server
option, the Synchronize Now button should be used, which will immediately
reset the Node/Terminal time to the server time.
• Thereafter the built-in SNTP client automatically establishes connection to the
time server each hour.
• Providing the local Node/Terminal time is within 30 seconds of the server
time it will drift towards the server time at a rate not more than 1 second per
33 minutes. The slow adjustment of time ensures no time-related
disturbances to NMS network timing and/or internally timed routines.
• In the unlikely event the local Node/Terminal time is more than 30 seconds
from the server time it will jump to the server time.
• If connection cannot be established at the scheduled hourly prompt, it will
automatically retry after 5 minutes and continue to retry every 5 minutes
until connection is re-established.
• More than one SNTP server can be listed, in which case the Node/Terminal will
contact all servers hourly and adjust to the average of the times presented from
each server. Having more than one server provides redundancy; in the event one
server cannot be contacted, the other (or others) should be contactable to
provide continuity.
• The time server may be a device on the NMS network or a 3rd-party server with
connection via the Internet.
• SNTP server applications are available to run on PCs.
• For more information on SNTP servers and server sites, do a search on the
Internet using ‘SNTP server’.