I cannot fix a STP issue on my cisco switch. The vtp pdomain password mode revision numbers are all correct still cant fix it

Read this: http://www.cisco.com/c/en/us/support/docs/switches/catalyst-2950-series-switches/12040-pswdrec-2900xl.html

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You can only reset password this way:
1.
Attach a terminal or PC with terminal emulation (for example, Hyper Terminal) to the console port of the switch.
Use the following terminal settings:

• Bits per second (baud): 9600
• Data bits: 8
• Parity: None
• Stop bits: 1
• Flow Control: Xon/Xoff

2.Unplug the power cable.
3. Hold down the mode button located on the left side of the front panel, while you reconnect the power cable to the switch
4. Release the Mode button when the SYST LED blinks amber and then turns solid green. When you release the Mode button, the SYST LED blinks green.
5. switch: flash_init
6. switch: load_helper
7. switch: dir flash:
8. switch: rename flash:config.text flash:config.old
Rename config.text to config.old. In that file the password is stored.
9. switch: boot
10. Enter "n" at the prompt to abort the initial configuration dialog
11. Type en to enable
12. Switch#rename flash:config.old flash:config.text
13. Switch#copy flash:config.text system:running-config
14. Overwrite the current passwords:
conf term
enable secret <new pass>
enable password <new pass>
line vty 0 15
password <new pass>
login
line con 0
password <new pass>

15. write memory
16. copy run start

Connect to http://192.168.1.1/
The default password is "admin". No username required. If you don't remember the correct password and you don't want to use some brute-force cracking software the only option is to reset the router pressing reset for 30 seconds. After that everything should be back to factory defaults including the default password.

If you need any kind of technical assistance you can contact support cell at here

if you issue the command show version
At the bottom written in bold you should the config register settings these nee to be as shown at the bottom of this page


R1#show version
Cisco Internetwork Operating System Software
IOS (tm) 2500 Software (C2500-JS-L), Version 12.1(3), RELEASE SOFTWARE (fc1)
Copyright (c) 1986-2000 by cisco Systems, Inc.
Compiled Thu 06-Jul-00 10:02 by cmong
Image text-base: 0x0306F914, data-base: 0x00001000

ROM: System Bootstrap, Version 11.0(10c), SOFTWARE
BOOTFLASH: 3000 Bootstrap Software (IGS-BOOT-R), Version 11.0(10c), RELEASE SOFT
WARE (fc1)

R1 uptime is 1 day, 5 hours, 39 minutes
System returned to ROM by power-on
System image file is "flash:c2500-js-l.121-3"

cisco 2500 (68030) processor (revision N) with 14336K/2048K bytes of memory.
Processor board ID 11844920, with hardware revision 00000001
Bridging software.
X.25 software, Version 3.0.0.
SuperLAT software (copyright 1990 by Meridian Technology Corp).
TN3270 Emulation software.
Basic Rate ISDN software, Version 1.1.
1 Ethernet/IEEE 802.3 interface(s)
2 Serial network interface(s)
1 ISDN Basic Rate interface(s)
32K bytes of non-volatile configuration memory.
16384K bytes of processor board System flash (Read ONLY)

Configuration register is 0x2102

if yours differs the use the these commands to correct it


R1>en
R1#conf t
Enter configuration commands, one per line. End with CNTL/Z.
R1(config)#config 0x2102
R1(config)#^Z
R1#


Hope this helps

If you have the password logon and type wr erase and reboot.

 

http://www.cisco.com/en/US/products/hw/switches/ps607/products_tech_note09186a00800c4546.shtml

 

 

you will have to reset it or recover it. It can be a lengthy process, here's the howto on cisco's site for a 1760 router password reset/recover:

http://ciscosystems.com/en/US/docs/routers/access/1700/1760/hardware/installation/guide/trblsht.html

255 max
1 - 4094 numerical VLAN's
1002-1005 used for token ring/ FDDI
1006+ VLAN's aren't stored in database and must be in VTP transparent mode.

Unfortunately the show stack isn't showing any results other than it is either a hardware or software fault. I am guessing it is a fault with the hardware as the show version in your first post states "interface Ethernet-controller 4 failed POST POST error status : general error occured".

Ethernet-controller 4 is one if the gigabit ports (poss fibre port), so if you have anything attached to those, disconnect and reboot the switch and see what happens. If that doesn't work, you could try reinstalling the IOS, but at a guess I would say its a hardware fault.

password recovery procedure 3550 catalyst cisco switch
1>Attach a terminal or PC with terminal emulation (for example, Hyper Terminal) to the console port of the switch. Use the following terminal settings: ¨ Bits per second (baud): 9600 ¨ Data bits: 8 ¨ Parity: None ¨ Stop bits: 1 2>Unplug the power cable. 3>Power the switch and bring it to the switch: prompt 4>Issue the flash_init command 5>Issue the load_helper command. switch: load_helper switch: 6>Issue the dir flash: command. Note: Make sure to type a colon ":" after the dir flash.
7>Type rename flash:config.text flash:config.old to rename the configuration file. 8>Issue the boot command to boot the system. switch: boot Loading "flash:c3500xl−c3h2s−mz.120−5.WC7.bin"...############################### ################################################################################ ###################################################################### 9>Enter "n" at the prompt to abort the initial configuration dialog. −−− System Configuration Dialog −−− At any point you may enter a question mark '?' for help. Use ctrl−c to abort configuration dialog at any prompt. Default settings are in square brackets '[]'. Continue with configuration dialog? [yes/no]: n !−−− Type "n" for no. Press RETURN to get started. !−−− Press Return or Enter. Switch> !−−− The Switch> prompt is displayed. 10>At the switch prompt, type en to enter enable mode. Switch>en Switch# 11>Type rename flash:config.old flash:config.text to rename the configuration file with its original name. Switch#rename flash:config.old flash:config.text Destination filename [config.text] !−−− Press Return or Enter. Switch# 11. Copy the configuration file into memory. Switch#Type rename flash:config.old flash:config.text to rename the configuration file with its original name. Switch#rename flash:config.old flash:config.text Destination filename [config.text] !−−− Press Return or Enter. Switch# 11. Copy the configuration file into memory. Switch#copy flash:config.text system:running−config Destination filename [running−config]? !−−− Press Return or Enter. 1131 bytes copied in 0.760 secs Sw1# The configuration file is now reloaded.
Destination filename [running−config]? !−−− Press Return or Enter. 1131 bytes copied in 0.760 secs Sw1# The configuration file is now reloaded. 12>Overwrite the current passwords that you do not know. Choose a strong password with at least one capital letter, one number, and one special character. Note: Overwrite the passwords which are necessary. You need not overwrite all of the mentioned passwords. Sw1# conf t !−−− To overwrite existing secret password Sw1(config)#enable secret <new_secret_password> 13>!−−− To overwrite existing enable password Sw1(config)#enable password <new_enable_password> !−−− To overwrite existing vty password Sw1(config)#line vty 0 15 Sw1(config−line)#password <new_vty_password> Sw1(config−line)#login !−−− To overwrite existing console password Sw1(config−line)#line con 0 Sw1(config−line)#password <new_console_password> Write the running configuration to the configuration file with the write memory command. Sw1#write memory Building configuration... [OK]