HP procurve 2500 사용자 설명서

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Enhancements in Release F.02.02
New Time Synchronization Protocol Options

Enabling SNTP in Broadcast Mode.

Because the switch provides an SNTP polling interval

(default: 720 seconds), you need only these two commands for minimal SNTP broadcast configura-
tion:

Syntax:

timesync sntp

Selects SNTP as the time synchronization method.

sntp broadcast

Configures

Broadcast

as the SNTP mode.

For example, suppose:

■

Time synchronization is in the factory-default configuration (TimeP is the currently selected
time synchronization method).

■

You want to:

1. View the current time synchronization.

2. Select SNTP as the time synchronization mode.

3. Enable SNTP for Broadcast mode.

4. View the SNTP configuration again to verify the configuration.

The commands and output would appear as follows:

Figure 91. Example of Enabling SNTP Operation in Broadcast Mode

Enabling SNTP in Unicast Mode.

Like broadcast mode, configuring SNTP for unicast mode

enables SNTP. However, for Unicast operation, you must also specify the IP address of at least one
SNTP server. The switch allows up to three unicast servers. You can use the Menu interface or the
CLI to configure one server or to replace an existing Unicast server with another. To add a second
or third server, you must use the CLI. For more on SNTP operation with multiple servers, see “SNTP
Unicast Time Polling with Multiple SNTP Servers” on page 205.

show sntp displays the SNTP configuration and also shows that
TimeP is the currently active time synchronization mode.

show sntp again displays the SNTP configuration and shows that
SNTP is now the currently active time synchronization mode and is
configured for broadcast operation.