690 IT Telegram . ?

3

Cisco NTP (Network Time Protocol). VoIP :

  • IP- Cisco
  • Voicemail
  • Call Detail Records (CDR) ,
  • Cisco

Cisco , 1 , 1993 . : clock set EXEC , Network Time Protocol (NTP).

, NTP , , . , , , NTP, .

stratum NTP . stratum 1 . , , stratum 2. , stratum 2 stratum 3 . NTP , www.ntp.org

, .

Router#conf t
Router(config)#ntp server 64.209.210.20
Router(config)#clock timezone MSK 3

ntp server [ip_] . UTC (Universal Time Coordinated) . clock timezone [] [] . UTC+3.

show ntp associations show ntp status.

NTP , , . ntp master [stratum number] . , ntp master 4, stratum 4 .


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