Resetting NVRAM to Default Values

You can reset nonvolatile memory (NVRAM) configuration parameters to their factory default values for one or all of the following functional components using the CLI:

  • Backup (installation and dump) file locations

  • SNMP protocol

  • Event Logging System (ELS)

  • Users and passwords

  • Time of day

Refer to Plug and Play Default Settings for complete lists of default values for all functional components.

Procedure:

Step Action
1 Select Telnet to Module from the application tree and connect to the module.
2 At the Main prompt (Main>), enter Config and press Return.

3

At the Config prompt (Config>), enter clear command-option, where command-option is the command you must enter to specify the components for which you want to reset defaults. Refer to Clear Command Options and Descriptions for a list of commands, and for a description of the functional component for which you reset defaults when you enter the command.

4

Press Return.

If you use the all command option, the following message is displayed:

You are about to clear all Bridge configuration information

*** WARNING *** This will invoke an automatic RESTART

Are you sure you want to do this (Yes or [No]):

If you use any of the other command options, the following message is displayed:

You are about to clear all SNMP configuration information
Are you sure you want to do this (Yes or [No]):

5

Enter y if you want to reset parameters for the specified functional component to their defaults.

Enter n if you want to abort the command.

6

Press Return.

If you are resetting parameters for all functional components or for boot configurations, the module is automatically restarted and the Main prompt (Main>) is displayed.

If you are resetting parameters for any functional component other than for all functional components or for boot configurations, the parameters are reset in memory and the Config prompt (Config>) is again displayed.

The operational state of the module may not immediately reflect a cleared configuration. You should restart the module to ensure that the changes take effect.

7 Log out of the Telnet session and terminate the connection.

 

Clear Command Options and Descriptions

Command

Description

boot

Resets NVRAM parameters for the backup file locations of all image (installation), configuration, and dump files.

snmp

Resets the SNMP protocol.

els

Resets all Event Logging System NVRAM configuration parameters.

time

Resets the time of day clock (switch-wide parameter).

user

Resets user access and passwords. If ID and password prompting (enabling and disabling remote console login) is currently enabled, the console login setting is temporarily disabled until a new user with administrative privileges is added. (Refer to Adding and Managing Users for information about enabling and disabling prompting for ID and password.)

all

Resets NVRAM configuration parameters for most functional components including transparent bridging, VLANs, protocols, backup file locations, ATM interface settings, users and passwords, time of day, and ELS.

You cannot reset Ethernet, Fast Ethernet, and FDDI interface configuration settings to factory defaults using the CLI. You must use the Reset with Factory Defaults option from the VNswitch module installation menu.