Time Protocols

SNTP Unicast Time Polling with Multiple SNTP Servers

all servers in the list without success, it sends an error message to the Event Log and reschedules to try the address list again after the configured Poll Interval time has expired.

Address Prioritization

If you use the CLI to configure multiple SNTP servers, the switch prioritizes them according to the decimal values of their IP addresses. That is, the switch compares the decimal value of the octets in the addresses and orders them accordingly, with the lowest decimal value assigned as the primary address, the second-lowest decimal value assigned as the next address, and the third- lowest decimal value as the last address. If the first octet is the same between two of the addresses, the second octet is compared, and so on. For example:

SNTP Server

Server Ranking According to

IP Address

Decimal Value of IP Address

 

 

10.28.227.141

Primary

10.28.227.153

Secondary

10.29.227.100

Tertiary

 

 

Adding and Deleting SNTP Server Addresses

Adding Addresses. As mentioned earlier, you can configure one SNTP server address using either the Menu interface or the CLI. To configure a second and third address, you must use the CLI. For example, suppose you have already configured the primary address in the above table (10.28.227.141). To configure the remaining two addresses, you would do the following:

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