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This object specifies a Network Time Protocol (NTP) server that supplies local time to the 

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. The reference time delivered by NTP is the source of all timestamps placed into the accounting records.

During the installation process, the NTP server and time zone information is input to the Active server only. Once the Standby server starts, this information is synced from the Active to Standby.

Note
The 
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should receive an initial time synchronization from NTP server before accepting calls.

Info

The SBC supports up to three NTP servers. 

Command Syntax

The following CLI syntax is used to configure NTP server at system level.

% set system ntp
	keys <key Id>
		keyType <MD5 | SHA1>
		keyValue <key value>
	serverAdmin <IP_address>
		authKey <key Id>
		maxPoll <10-17>
		minPoll <4-17>
		state <disabled | enabled>
		version <version3 | version4>
	timeZone <SYSTEM NAME>
		zone <zone>
Warning

Changing the time zone forces a restart of the 

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application, and thus cause a service outage for a few minutes. 
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recommends changing the time zone only during a system maintenance window. Refer to Changing the Time Zone for details.

Command Parameters

NTP Services Management parameters

Parameter

Length/Range

Description

keys

 N/A

<key Id> – NTP authentication key Identifier to obtain from NTP server, with following attributes:

  • keyType – NTP authentication key type to assign to the SBC for this <keyId>:
    • MD5 – MD-5 (Message Digest Algorithm) cryptographic hash function.
    • SHA1 – SHA-1 (Secure Hash Algorithm) cryptographic hash function.
  • keyValue <key value> – NTP authentication key value to assign to the SBC for this <keyId>.

serverAdmin

N/A

<ip_address> – The NTP server IP address.

  • authKey <key Id> – NTP authentication key to authenticate the server (Use NTP server <keyId> configured in keys command).
  • maxPoll – The maximum poll interval, in seconds to the power of 2, for this NTP Server. The maxPoll parameter value range is 10 - 17 (1,024 seconds to 36.4 hours). (range: 10-17 / default = 10).
  • minPoll – The minimum poll interval, in seconds to the power of 2, for this NTP Server. The minPoll parameter value range is 4 - 17 (16 seconds to 36.4 hours). (range: 4-17 / default = 4).
  • state– NTP server state.
    • disabled – (default) The state of the NTP server is disabled.
    • enabled – The state of the NTP server is enabled.
  • version– NTP server version.
    • version3 (default)
    • version4

timeZone

N/A

Time zone configuration.

  • <system_name> – 
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    system name.
  • zone – Specify the time zone where the node resides. Refer to Time Zones page.

Command Example

The following example enables NTP server version 4 at IP address 10.20.30.40, and sets time zone of the 

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system to U.S. Hawaii time.

% set system ntp serverAdmin 10.20.30.40 version version4  
% set system ntp serverAdmin 10.20.30.40 state enabled
% set system ntp serverAdmin 10.1.1.1 authKey 6 
% set system ntp timeZone SBC01 zone us-Samoa
% show system ntp
timeZone SBC01 {
    zone us-Samoa;
}
serverAdmin 10.160.20.53 {
    version version4;
    minPoll 4;
    maxPoll 10;
    state   enabled;
    authKey 6;
}

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