Configuring NTP Servers
Four Riverbed public NTP servers are defined by default. These servers can be edited or deleted. Configure new NTP servers as follows.
1. Go to Administration > System Settings: General page, and select the Time tab. Go to the NTP Servers section.
2. Click Add in the toolbar at the top of the table.
3. In the New NTP Server window enter the following:
– Hostname or IP Address supports IPv4 and IPv6 addresses.
– Prefer can be enabled for this NTP server by checking or unchecking the box.
– Version is the NTP protocol version used. Select the version from the drop-down list.
– Encryption the type used is selected from the drop-down list. Select N/A if no encryption used (default).
– Key is an 8-character ASCII string used in server authentication.
– Enter the key ID is a value from 0 to 65534, used in server authentication.
4. Click Save to add the NTP server.
Editing NTP Servers
To revise an existing NTP server do the following.
1. With the mouse, hover over the NTP server to be edited.
2. Click the pencil icon at the end of the row.
3. In the Edit NTP Server window, make the changes required.
4. Click Save to make the changes to the NTP server.
Deleting an NTP Server
1. With the mouse, hover over the NTP server to be deleted.
2. Click the x at the end of the row.
Alternatively, you can use the Delete icon in the toolbar to delete an NTP server as follows.
1. Hover over a route to be deleted.
2. Select the check box on the left for the route to be deleted.
3. Click Delete to remove the route.
NTP Server Status
1. Go to Administration > System Settings: General page, and select the Time tab. Go to the NTP Servers section.
2. A table lists the current available NTP servers with the following information:
– Active: Only one NTP server can be active and it has a value of true. All other servers have a value of false.
– Server: NTP server name or IP address.
– Auth Status: True if authentication is used and the server is authenticated.
– Key ID: Specified when the NTP server is configured.
– Ref ID: System peer ID used to identify the time source.
– Configured: True if you configured this server, False if it was discovered on the network.
– Offset [ms]: The time difference between the reference clock and the system clock.