Add an NTPv4 Server

Add a remote NTP server to the configuration by first specifying its IP address. NTP adds this IP address to a list of servers, which the local NTP client uses to query remote time servers for time information. The list of qualified servers called to is a peer list.

About this task

For NTPv4, this procedure adds the NTP server information to the switch that is acting as an NTP client. You can configure a maximum of 10 IPv4 NTP servers and 10 IPv6 NTP servers.

Procedure

  1. In the navigation pane, expand Configuration > Edit > NTP.
  2. Click NTPv4.
  3. Click the Server tab.
  4. Click Insert.
  5. Specify if the IP address is IPv4 or IPv6.
  6. Specify the IP address of the NTP server.
  7. Click Insert.

Server field descriptions

Use the data in the following table to use the Server tab.

Name

Description

ServerAddressType

Specifies the address type as IPv4 or IPv6.

ServerAddress

Specifies the IP address of the remote NTP server.

Enable

Activates or disables the remote NTP server. The default is enabled.

Authentication

Activates or disables MD5 or SHA1 authentication on this NTP server. MD5 or SHA1 produces a message digest of the key. MD5 or SHA1 verifies the integrity of the communication, authenticates the origin, and checks for timeliness.

The default is no authentication.

KeyId

Specifies the key ID used to generate the MD5 or SHA1 digest for this NTP server. The default is 0, which indicates that authentication is disabled.

Stratum

Shows the stratum of the server.

Version

Shows the NTP version of the server.

Broadcast

Shows if broadcast is enabled or disabled

AuthEnabled

Shows if authentication is enabled or disabled

AuthStatus

Shows the authentication status.

Synchronized

Shows the status of synchronization with the server.

Reachable

Shows the NTP reachability status of the server.

RootDelay

Shows the root delay of the server.

RootDisp

Shows the root dispersion of the server.

ServerDelay

Shows the delay of the server.

Dispersion

Shows the dispersion of the server.

Offset

Shows the offset of the server.

Precision

Shows the NTP precision of the server in seconds.

Jitter

Shows the jitter of the server

LastEvent

Shows the last event of the server.