Protocol Overview; Configure The Network Time Protocol; Enabling Ntp - Dell Force10 Z9000 Configuration Manual

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synchronize and serve as a client to the NTP host. As soon as a host-client relationship is established, the networking device

propagates the time information throughout its local network.

Protocol Overview

The NTP messages to one or more servers and processes the replies as received. The server interchanges addresses and ports, fills

in or overwrites certain fields in the message, recalculates the checksum, and returns it immediately.

Information included in the NTP message allows each client/server peer to determine the timekeeping characteristics of its other

peers, including the expected accuracies of their clocks. Using this information, each peer is able to select the best time from

possibly several other clocks, update the local clock, and estimate its accuracy.

Figure 111. NTP Fields

Implementation Information

Dell Networking systems can only be an NTP client.

Configuring NTP is a one-step process.

Related Configuration Tasks

Configuring NTP Broadcasts

Disabling NTP on an Interface

Configuring a Source IP Address for NTP Packets

Enabling NTP

NTP is disabled by default.

To enable NTP, specify an NTP server to which the Dell Networking system synchronizes. To specify multiple servers, enter the

command multiple times. You may specify an unlimited number of servers at the expense of CPU resources.

Specify the NTP server to which the Dell Networking system synchronizes.

CONFIGURATION mode

System Time and Date