OmniSwitch AOS Release 6 Switch Management Guide July 2010 page 4-1
4 Configuring Network Time
Protocol (NTP)
Network Time Protocol (NTP) is used to synchronize the time of a computer client or server to another
server or reference time source, such as a radio or satellite receiver. It provides client time accuracies
within a millisecond on LANs, and up to a few tens of milliseconds on WANs relative to a primary server
synchronized to Universal Coordinated Time (UTC) (via a Global Positioning Service receiver, for exam-
ple).
In This Chapter
This chapter describes the basic components of the OmniSwitch implementation of Network Time Proto-
col and how to configure it through Command Line Interface (CLI). CLI commands are used in the
configuration examples; for more details about the syntax of commands, see the OmniSwitch CLI Refer-
ence Guide.
Configuration procedures described in this chapter include:
• Enabling the NTP client and selecting the NTP mode. See “Configuring the OmniSwitch as a Client”
on page 4-9.
• Selecting an NTP server for the NTP client and modifying settings for communicating with the server.
See “Configuring NTP Servers” on page 4-10.
• Configuring the NTP server on the OmniSwitch. See “Configuring the OmniSwitch as an NTP Server”
on page 4-11.
• Enabling authentication in NTP negotiations. See “Using Authentication” on page 4-12.
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