Time Protocols
SNTP Unicast Time Polling with Multiple SNTP Servers
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
IP Address
Server Ranking According to
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:
Prioritized list of SNTP
Server IP Addresses
Figure 9-16. Example of SNTP Server Address Prioritization
Note If there are already three SNTP server addresses configured on the switch,
and you want to use the CLI to replace one of the existing addresses with a
new one, you must delete the unwanted address before you configure the new
one.
9-22
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