Cabletron Systems NBR-420 사용자 설명서

Chapter 3: Installation

After changing the state of this switch, and repowering the device, the 
NBR requests a new image until it either receives a new image, or you 
reset the NBR again by using the RESET button on the front panel.

After resetting the NBR, the device attempts to locate a BOOTP server 
again. However, the BOOTP request times out after about one minute, 
and the NBR boots from FLASH memory.

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Switch 7 - Cabletron Systems use only.

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Switch 8 - Password Defaults. Changing the state of this switch clears 
user-entered passwords stored in NVRAM, and restores default 
passwords. Once you reset the NBR, you can use the defaults or 
re-enter your passwords.

Figure 3-2 shows the location of the NVRAM reset switch. The NBR uses 
NVRAM (Non-Volatile Random Access Memory) to store user entered 
parameters such as IP address, device name, etc. Changing the state of 
this switch (i.e., moving the switch from one position to another) resets 
these parameters to the factory defaults. 

After changing the state of the NVRAM reset switch, press the RESET 
button to use the factory defaults or to re-enter your own parameters. 
These parameters are stored in NVRAM when the NBR is powered down, 
and remain there until the NVRAM switch is changed again.

Do not change the state of Switch 8 unless you want to reset 
the NBR user-configured passwords to their factory default 
settings.

Do not change the state of the NVRAM switch unless you 
intend to reset the NBR user parameters to the factory default 
settings.