erasing config

Answered Question
Feb 21st, 2008

all our switches are in vtp transparent mode, do I need to issue the delete flash:vlan.dat to clear the configuration or just erase start?

I have this problem too.
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Correct Answer by lamav about 8 years 8 months ago


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Overall Rating: 5 (3 ratings)
lamav Thu, 02/21/2008 - 12:53

You havent specified the switch models, but typically you could use the following;

erase nvram to delete all files in nvram.

erase const_nvram to delete vlan database

erase startup-config to delete startup config


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lamav Fri, 02/22/2008 - 06:45

Actually, you must specify the switch because it varies.

To erase the vlan.dat file on the 6500/6000 switches, issue the erase const_nvram: command. On the 4500/4000 switches, issue the erase cat4000_flash: command. On the fixed configuration switches, issue the delete flash:vlan.dat command.



andrewerowley Fri, 02/22/2008 - 08:36

The switches in question are 3750 and 3560 so I am guessing the delete flash:vlan.dat is required.


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