From the Navigation menu, select System → SNTP → Global Configuration.

Result:

The SNTP Global Configuration window opens.

Provision the following parameters:

• Client Mode

  Specify the mode of operation of the SNTP Client. An SNTP client may operate in one of the following modes:

  • Disable- SNTP is not operational. No SNTP requests are sent from the client nor are any received SNTP messages processed. Default value is Disable.

  • Unicast- SNTP operates in a point-to-point fashion. A unicast client sends a request to a designated server at its unicast address and expects a reply from which it can determine the time and, optionally the round-trip delay and local clock offset relative to the server.

  • Broadcast - SNTP operates in the same manner as multicast mode but uses a local broadcast address instead of a multicast address. The broadcast address has a single subnet scope while a multicast address has Internet wide scope.

• Port - Specifies the local UDP port to listen for responses/broadcasts. Allowed range is (1 to 65535). Default value is 123.

• Unicast Poll Interval - Specifies the number of seconds between unicast poll requests expressed as a power of two when configured in unicast mode. For example, 2 to the power of 6 equals 64 seconds, 2 to the power of 10 equals 1024 seconds. Allowed range is (6 to 10). Default value is 6.

• Broadcast Poll Interval - Specifies the number of seconds between broadcast poll requests expressed as a power of two when configured in broadcast mode. Broadcasts received prior to the expiration of this interval are discarded. Allowed range is (6 to 10). Default value is 6.

• Unicast Poll Retry - Specifies the number of times to retry a request to an SNTP server after the first time-out before attempting to use the next configured server when configured in unicast mode. Allowed range is (0 to 10). Default value is 1.

Click Submit to send the updated configuration to the switch.

SNTP Server Configuration

From the Navigation menu, select System → SNTP → Server Configuration.

Result:

The SNTP Server Configuration window opens.

A maximum of three servers may be chosen.

Provision the following parameters:

• Server - Select Create to provision a new server, or select an existing server. If three servers already exist in the system, then "Create" is not valid.

• Address - Specifies the address of the SNTP server. This is a text string of up to 64 characters containing the encoded unicast IP address or host name of a SNTP server. Unicast SNTP requests will be sent to this address. If this address is a DNS hostname, then that hostname should be resolved into an IP address each time a SNTP request is sent to it.

• Address Type - Display only. Specifies the address type of the configured SNTP Server address. Allowed type is IPv4.

• Port - Specifies the port on the server to which SNTP requests are to be sent. Allowed range is (1 to 65535). Default value is 123.

• Priority - Specifies the priority of this server entry in determining the sequence of servers to which SNTP requests will be sent. The client continues sending requests to different servers until a successful response is received or all servers are exhausted. The priority indicates the order in which to query the servers. A server entry with a priority of 1 will be queried before a server with a priority of 2, and so forth. If more than one server has the same priority then the requesting order will follow the lexicographical ordering of the entries in this table. Allowed range is (1 to 3). Default value is 1.

• Version - Specifies the NTP Version running on the server. Allowed range is (1 to 4). Default value is 4.

Click Submit to send the updated configuration to the switch.

Click Delete to delete the SNTP server entry.

End of steps