Administration: Time Settings
SNTP Unicast
122 Cisco 350, 350X and 550X Series Managed Switches, Firmware Release 2.4, ver 0.4
8
• IPv6 Address Type—Select the IPv6 address type (if IPv6 is used). The options are
- Link Local—The IPv6 address uniquely identifies hosts on a single network link. A
link local address has a prefix of FE80, is not routable, and can be used for
communication only on the local network. Only one link local address is supported.
If a link local address exists on the interface, this entry replaces the address in the
configuration.
- Global—The IPv6 address is a global Unicast IPV6 type that is visible and
reachable from other networks.
• Link Local Interface—Select the link local interface (if IPv6 Address Type Link Local
is selected) from the list.
• SNTP Server IP Address/Name—Enter the SNTP server IP addressor name. The
format depends on which address type was selected.
• Poll Interval—Select to enable polling of the SNTP server for system time information.
All NTP servers that are registered for polling are polled, and the clock is selected from
the server with the lowest stratum level (distance from the reference clock) that is
reachable. The server with the lowest stratum is considered to be the primary server. The
server with the next lowest stratum is a secondary server, and so forth. If the primary
server is down, the device polls all servers with the polling setting enabled, and selects
a new primary server with the lowest stratum.
• Authentication—Select the check box to enable authentication.
• Authentication Key ID—If authentication is enabled, select the value of the key ID.
(Create the authentication keys using the SNTP Authentication page.)
STEP 6 Click Apply. The STNP server is added, and you are returned to the main page.
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