Motorola Series Switch WS5100 - Manual (Page 188)

5-18 WS5100 Series Switch System Reference Guide
5. Click Apply to save any changes to the screen. Navigating away from the screen without clicking the
Apply button results in all the changes on the screen being discarded.
6. Click the Revert button to undo the changes to the screen and revert to the last saved configuration.
7. Refer to the Symmetric Key field to view the following information.
8. Select an existing Key and click the Delete button to permanently remove it from the list of Key IDs.
9. Click the Add button to create a new Symmetric Key that can be used by the switch. For more information
on adding a new key, see Adding a New SNTP Symmetric Key on page 5-18 .
5.3.2 Adding a New SNTP Symmetric Key
To add a new key to the Configuration tab:
1. Select Services > Secure NTP from the main menu tree.
2. Select the Configuration tab.
Broadcast Delay Enter the estimated round-trip delay (between 1 and 999999 seconds) for SNTP broadcasts
between the SNTP broadcast server and the switch. Define the interval based on the priority
of receiving accurate system time frequently. Typically, no more than one packet per minute
is necessary to synchronize the switch to within a millisecond of the SNTP broadcast server.
Auto Key Use use an Auto Key drop-down menu to specify whether the
a key is disabled, enabled only on the host or enabled only on the client.
Key ID Displays a Key ID between 1-65534. The Key ID is a Key abbreviation allowing the switch to
reference multiple passwords. This makes password migration easier and more secure
between the switch and its NTP resource.
Key Value Displays the authentication key value used to secure the credentials of the server providing
system time to the switch.
Trusted Key If a checkmark appears, a trusted key has been associated with a domain name. A trusted
key is added when a public key is known, but cannot be securely obtained. Adding the trusted
allows key information from the server to be considered secure. The authentication
procedures requires that both the local and remote servers share the same key and key
identifier. Therefore, using key information from a trusted source is important.
CAUTION: After an NTP synchronization using a Symmetric Key, the NTP status will not
automatically be updated (it takes approximately 15 minutes to update within the switch
Web UI.
!