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Configuring System Information 115
• If more than one Unicast device responds, synchronization information is preferred from the device
with the lowest stratum.
• If the servers have the same stratum, synchronization information is accepted from the SNTP server
that responded first.
MD5 (Message Digest 5) Authentication safeguards device synchronization paths to SNTP servers. MD5
is an algorithm that produces a 128-bit hash. MD5 is a variation of MD4, and increases MD4 security.
MD5 verifies the integrity of the communication, authenticates the origin of the communication.
The SNTP menu page contains links to pages that allow you to configure SNTP parameters.
To displ ay t he SNTP page, click System > SNTP in the tree view.
Use this page to go to the following features:
•SNTP Global Settings
• SNTP Authentication
•SNTP Server
SNTP Global Settings
Use the SNTP Global Settings
page
to view and adjust SNTP parameters.
To display the SNTP Global Settings
page, click System > SNTP > Global Settings in the tree view.
Figure 6-9. SNTP Global Settings
The SNTP Global Settings page contains the following fields:
•
SNTP Client —
Use drop-down list to enable or disable the client. If the client is disabled, some of the
fields below are also disabled.
•
Poll Interval —
Defines the interval (in seconds) at which the SNTP server is polled for Unicast
information. The range is 60–1024 seconds.