config.text
). VLANs persist unless you also delete vlan.dat
.
If you want a full factory reset, delete both files before reset
.
Physical Access
- Power off the switch.
- Press and hold the blue button on the left side (Mode/Reset).
- Power on the switch while holding the button until you see the
switch:
prompt on the console, then release.
You are now in the boot loader (ROMMON-like) environment.
List File Systems & Flash Contents
Show currently registered file systems:
switch: dir
List files in flash:
switch: dir flash:
Example output:
switch: dir flash: Directory of flash:/ 258 -rwx 35 <date> pnp-tech-time 259 -rwx 45048 <date> pnp-tech-discovery-summary 263 drwx 2048 <date> c1000-universalk9-mz.152-7.E6 520 drwx 2048 <date> dc_profile_dir 257 drwx 2048 <date> pnp-info 775 -rwx 856 <date> vlan.dat 1025 drwx 2048 <date> pnp-tech 261 -rwx 4059 <date> config.text 774 -rwx 1917 <date> private-config.text 776 -rwx 9240 <date> multiple-fs 2 drwx 2048 <date> lost+found 197554K bytes available (41422K bytes used)
Delete Startup Config (and Optional VLANs)
Remove the saved configuration so the switch boots fresh:
switch: delete flash:config.text Are you sure you want to delete "flash:config.text" (y/n)?y File "flash:config.text" deleted
Optional: also delete VLAN database if you want default VLANs:
switch: delete flash:vlan.dat Are you sure you want to delete "flash:vlan.dat" (y/n)?y File "flash:vlan.dat" deleted
Reboot
switch: reset Are you sure you want to reset the system (y/n)?y System resetting...
On boot, decline the initial configuration dialog if prompted. You can now set new passwords and reconfigure as needed.
Post-Reset Quick Setup (after boot)
enable configure terminal no ip domain-lookup enable secret <NEW-SECURE-PASSWORD> line console 0 password <NEW-CONSOLE-PASS> login line vty 0 15 password <NEW-VTY-PASS> login end copy running-config startup-config