User's Guide Hub/Switch 2E253, 2H252, 2H253, 2H258

General Configuration Screen
Device Configuration Menu Screens 4-15
3. Press ENTER to accept the application.
4. Use the arrow keys to highlight the SAVE command at the bottom of the screen, then press the
ENTER key. The message “SAVED OK” displays, indicating that the edits are saved.
4.2.11 Clearing NVRAM
Clearing NVRAM is used to clear all user-entered parameters, such as the IP address and
Community Names from NVRAM.
To clear NVRAM, proceed as follows:
1. Use the arrow keys to highlight the Clear NVRAM field.
2. Use the SPACE bar to toggle the field to YES.
3. Use the arrow keys to highlight SAVE at the bottom of the screen.
4. Press ENTER. The warning shown in Figure 4-6 displays.
Table 4-3 COM Port Application Settings
Setting Application
LM Local Management Session
UPS APC Power Supply SNMP Proxy
CAUTION: When the COM port is configured to perform the UPS application, all future
Local Management connections must be made by establishing a Telnet connection to
the device. Ensure that the device has a valid IP address before saving changes to the
COM port application. If the device does not have a valid IP address and the changes
are saved, refer to your device installation user’s guide for instructions on clearing
NVRAM to reestablish COM port communications.
CAUTION: Clearing NVRAM results in the loss of all user-entered parameters. Do not
proceed unless the following procedure is completely understood.