Delete VLAN setup

ssnyderu2 · March 2015

I got a 2950 off ebay and it was not completely reset. I want to clear the VLAN settings to factory default. Below is what I have on it now.

Switch#show vlan brief

VLAN Name Status Ports
----

1 default active Fa0/1, Fa0/2, Fa0/3, Fa0/4
Fa0/5, Fa0/6, Fa0/7, Fa0/8
Fa0/9, Fa0/10, Fa0/11, Fa0/12
Fa0/13, Fa0/14, Fa0/15, Fa0/16
Fa0/17, Fa0/18, Fa0/19, Fa0/20
Fa0/21, Fa0/22, Fa0/23, Fa0/24
2 VLAN0002 active
3 VLAN0003 active
10 Sales active
20 Marketing active
30 ASE active
40 ASR active
50 Managers active
1002 fddi-default active
1003 token-ring-default active
1004 fddinet-default active
1005 trnet-default active

I got the following command from the Cisco website (delete flash:vlan.dat) to reset the VLAN. It did not work, I got the below error. What did I do wrong? I want this box like I just got it new. I also ran the "write erase"command with no issues.

Switch#delete flash:vlan.dat
Delete filename [vlan.dat]? y
Delete flash:y? [confirm]
%Error deleting flash:y (No such file or directory)

Priston · March 2015

Delete filename [vlan.dat]? y
Delete flash:y? [confirm]
%Error deleting flash:y (No such file or directory)

Try just hitting enter instead of y. Notice how the file name goes from being vlan.dat to y? Your trying to delete filename y.

mikeybinec · March 2015

and you have to reload the switch

ssnyderu2 · March 2015

I did as you suggested and it looked as if the command was successful, but it still showed the same VLAN information. I ran the same command again and got: %Error deleting flash:vlan.dat (No such file or directory)

So it looked as if the file was deleted. I ran the reload command and now its gone!

All that was a long way of saying thanks for the info.

clarson · March 2015

or you could have done, config t, no vlan 2-999, end
probably should check for vtp settings too, show vtp status

ssnyderu2 · March 2015

clarson wrote: »

check for vtp settings too, show vtp status

Not sure what I am looking at.

Switch>enable
Switch#show vtp status
VTP Version : 2
Configuration Revision : 0
Maximum VLANs supported locally : 64
Number of existing VLANs : 5
VTP Operating Mode : Server
VTP Domain Name :
VTP Pruning Mode : Disabled
VTP V2 Mode : Disabled
VTP Traps Generation : Disabled
MD5 digest : 0x57 0xCD 0x40 0x65 0x63 0x59 0x47 0xBD
Configuration last modified by 0.0.0.0 at 0-0-00 00:00:00
Local updater ID is 0.0.0.0 (no valid interface found)

clarson · March 2015

Configuration Revision : 0 good
VTP Operating Mode : Server good, but transparent mode might be better, config t, vtp mode transparent, end
VTP Domain Name : good, no domain name
Number of existing VLANs : 5 not sure where 5 existing vlans are coming from, try delete flash:vlan.dat, wr erase, reload see if they are gone

clarson · March 2015

never mind. 5 existing vlans, the default (1) and
1002 fddi-default active
1003 token-ring-default active
1004 fddinet-default active
1005 trnet-default active
there you go, there are 5.

ssnyderu2 · March 2015

This is what I have done:

Switch>enable
Switch#show vtp status
VTP Version : 2
Configuration Revision : 0
Maximum VLANs supported locally : 64
Number of existing VLANs : 5
VTP Operating Mode : Server
VTP Domain Name :
VTP Pruning Mode : Disabled
VTP V2 Mode : Disabled
VTP Traps Generation : Disabled
MD5 digest : 0x57 0xCD 0x40 0x65 0x63 0x59 0x47 0xBD
Configuration last modified by 0.0.0.0 at 0-0-00 00:00:00
Local updater ID is 0.0.0.0 (no valid interface found)

And

1 default active Fa0/1, Fa0/2, Fa0/3, Fa0/4
Fa0/5, Fa0/6, Fa0/7, Fa0/8
Fa0/9, Fa0/10, Fa0/11, Fa0/12
Fa0/13, Fa0/14, Fa0/15, Fa0/16
Fa0/17, Fa0/18, Fa0/19, Fa0/20
Fa0/21, Fa0/22, Fa0/23, Fa0/24
1002 fddi-default active
1003 token-ring-default active
1004 fddinet-default active
1005 trnet-default active

I am guessing the 5 vlans are the 1 default and those 1002 - 1005.

Delete VLAN setup

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