R3721-F3210-F3171-HP High-End Firewalls Getting Started Guide-6PW101

Figure 48 Configuring Device A as the NTP server of Device B

Verifying the configuration

After the configuration, you can see that the current system time displayed on the System Time page is the

same for Device A and Device B.

Configuring the system time at the CLI

You must synchronize your device with a trusted time source by using NTP or manually configuring a

correct system time before you run it on the network. Network management depends on an accurate

system time setting, because the timestamps of system messages and logs use the system time.

In a small-sized network, you can manually set the system time of each device.

Configuration guidelines

You can change the system time by configuring the relative time, time zone, and daylight saving time. The

configuration result depends on their configuration order (see Table 13)

. In the first column of this table,

1 represents the clock datetime command, 2 represents the clock timezone command, and 3 represents

the clock summer-time command. To verify the system time setting, use the display clock command. This

table assumes that the original system time is 2005/1/1 1:00:00.

Table 13 System time configuration results

Command Effective s

stem time

Confi

uration exam

stem time

1 date-time

clock datetime 1:00

2007/1/1

01:00:00 UTC Mon

01/01/2007

Original system time ±

zone-offset

clock timezone

zone-time add 1

02:00:00 zone-time Sat

01/01/2005

1, 2 date-time ± zone-offset

clock datetime 2:00

2007/2/2

clock timezone

zone-time add 1

03:00:00 zone-time Fri

02/02/2007