Enterasys Networks X-PeditionTM Using the Real-Time Clock, Managing the System Configuration

Utilizing the Command Line Interface

Using the Real-Time Clock

The XSR’s Real-Time Clock (RTC) is employed by other system software modules to time-stamp events, alarms and is useful when no network clock source is accessible. It is normally synchronized with a master clock source over the network using the Simple Network Time Protocol (SNTP) but can also synchronize with the battery-supported RTC chip.

For SNTP configuration, see Chapter 3: Software Configuration in the XSR Getting Started Guide.

RTC/Network Clock Options

SNTP synchronizes the RTC with a network master clock but if there is no network clock source the RTC clock is used on its own. The RTC maintains the correct time with its battery even when the XSR is powered down.

RTC Commands

The real-time clock can be set with the clock set command. The universal time can be viewed with show clock command. To set the SNTP server, use the sntp-client server command. Refer to the XSR CLI Reference Guide for more command details.

Managing the System Configuration

The XSR’s system configuration consists of three discrete types which are described below. The configuration can also be reset to the defaults, saved, and uploaded or downloaded in bulk.

•Factory Default Configuration: These system parameters are set at the factory. If you make configuration changes and do not save them or the startup configuration file cannot be found, the XSR reverts to factory default parameters. You can manually reset to factory defaults on XSR 1800 Series routers by pressing the reset button at the back of the units. XSR 3000 and 4100 Series routers are not equipped with a reset button but you can restore factory defaults via the CLI as described in the next section.

•Startup Configuration: These system settings are used as the current running configuration when you power up or issue the reload command. The startup configuration is stored in non- volatile (Flash) memory as the startup-configfile. The file contains a version number followed by a series of CLI commands. When the XSR restarts, each CLI command in this file is read and executed.

•Private Configuration: The private-configfile contains SNMP v3 related commands. When the XSR restarts, each CLI command in this file is read and executed. The file is updated or created when the running configuration is saved to the startup configuration.

•Running Configuration: These system settings, known as running-config, include a version number followed by accumulated commands from startup-configand user revisions. Changes made to the configuration are lost if you power cycle or reboot unless you save it to startup-configusing the copy or write command.

The XSR validates commands as they are entered and rejects with an error message those commands which are invalid.

XSR User’s Guide 2-25