Cisco Systems IPS4510K9 Displaying the System Clock, Manually Setting the System Clock, Symbol

Chapter 3 Setting Up the Sensor

Configuring Time

Displaying the System Clock

Use the show clock [detail] command to display the system clock. You can use the detail option to indicate the clock source (NTP or system) and the current summertime setting (if any). The system clock keeps an authoritative flag that indicates whether the time is authoritative (believed to be accurate). If the system clock has been set by a timing source, such as NTP, the flag is set.

Table 3-1lists the system clock flags.

Table 3-1 System Clock Flags

Symbol Description

*Time is not authoritative.

(blank)	Time is authoritative.
.	Time is authoritative, but NTP is not synchronized.

To display the system clock, follow these steps:

Step 1 Log in to the CLI.

Step 2 Display the system clock.

sensor# show clock

*19:04:52 UTC Thu Apr 03 2008

Step 3 Display the system clock with details. The following example indicates that the sensor is getting its time from NTP and that is configured and synchronized.

sensor# show clock detail 20:09:43 UTC Thu Apr 03 2011 Time source is NTP

Summer time starts 03:00:00 UTC Sun Mar 09 2011

Summer time stops 01:00:00 UTC Sun Nov 02 2011

Step 4 Display the system clock with details. The following example indicates that no time source is configured.

sensor# show clock			detail
*20:09:43 UTC Thu			Apr 03 2011
No time source
Summer	time	starts	03:00:00 UTC Sun Mar 09 2011
Summer	time	stops	01:00:00 UTC Sun Nov 02 2011

Manually Setting the System Clock

Note You do not need to set the system clock if your sensor is synchronized by a valid outside timing mechanism such as an NTP clock source.

	Cisco Intrusion Prevention System Sensor CLI Configuration Guide for IPS 7.2
OL-29168-01		3-37