User Manual
– DuraNET 3300
Operational Description
MNL-0676-01 Rev A4
ECO- N/A
Effective: 26 Feb 21
Page 63 of 84
This also erases the complete NVRAM file system, therefore, all configurations, including startup and
running configurations will be deleted.
running-config
startup-config
The perma-locked bootable image(s) in the flash file system will still be available and can be used for
booting the device. See
“Recovery Procedures” below.
The “erase-all” level of zeroization process erases the entire flash file system. This also wipes out all files
and perma-locked bootable image(s). All interfaces are shut down prior to this process. Erasure of
individual files in the flash file system is not possible and the only option is to erase the entire flash file
system. Including packet data, ASIC data and processor-related caches along with scrubbing main
memory.
With any level of zeroization, the switch always fall back to the ROMMON prompt on the console after the
erasure of configuration files or flash file system.
•
switch:
/* ROMMON prompt */
Zeroization Trigger
The user needs to assert the physical Zeroize Discrete button after configuring the level of erasure required by the above CLI
commands. To make sure that the assertion has been identified by the underlying software, the physical Zeroize Discrete
button must be asserted for at least ONE second.
Recovery Procedures
Complete these steps in order to perform an emergency recovery:
1.
Boot the emergency install image.
switch:
boot emgy0:
<image-name>
.SPA.bin
Booting golden bootloader...
Initializing disk drivers...
Initializing file systems...
************************************************************
* Rom Monitor for ESS3300 *
* Copyright (c) 2017-2018 by Cisco Systems, Inc. *
* All rights reserved. *
************************************************************
* Version: 1.1.1
* Compiled: Sun 01-Jul-18 22:17 [RELEASE SOFTWARE]
* Boot Partition: qspi-golden-bootloader
* Reset Reason: Soft Reset
Loading "emgy0:ess3x00-universalk9.16.09.01.SPA.bin" to memory...
Verifying image "emgy0:ess3x00-universalk9.16.09.01.SPA.bin"...
Image passed digital signature verification
Checking for Bootloader upgrade...
Bootloader upgrade not required
SUP PL (profile: 1) configuration done successfully
<…>
Press RETURN to get started!
Switch>
2.
Ping the terminal that contains the TFTP server in order to test the connectivity: