I forget the console password. i want to reset my password. How to do that? product: catalyst 2948G-GE-TX

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

Must be helped for you! and more information about the Cisco 3750, please visit:
http://www.3anetwork.com/cisco-catalyst-3750-switches-price_c41

get a console cable and and console to usb cable and plug it into the console port of the switch and type in the interface this:
- enable
- config t
- write erase
-(you should be promoted here type 'y')
- reload
-(should be promoted again type 'n')
-(should be promoted again type 'y')

This will rebuild config to factory settings.

In order to get your router back to the original settings, you must push in the reset button (usually on the back of the router) for somewhere between 10 and 30 seconds depending on the router. You may need a pin or something small to push in the button, because it can be recessed. Once you have reset the router, the username and password will be changed to the defaults, admin and password, respectively. One thing you must remember is that resetting the router will change all of the router settings back to the factory settings. This means you will lose all of the changes you made since you got the router. Make sure to write down any things you've changed, so you can change them back after the reset. Also, I recommend updating to the latest firmware after the reset.
If you need more help post back! Thumbs and testimonial are welcome!

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

 

 

It looks like the IOS is bad or not not there.
You need to instal a new IOS onto the switch.


For more help during installation you can refer
http://www.cisco.com/en/US/products/hw/switches/ps663/products_tech_note09186a00800949c3.shtml#cat4k

It's possible that the management port is on another VLAN or is not enabled. Your most reliable bet is to try a serial connection to console in.

Alternatively, there is a procedure that will work even if you don't know the password:

http://www.cisco.com/en/US/docs/switches/lan/catalyst2900xl_3500xl/release12.0_5_wc5/swg/swtrbl.html#wp1028958

I have no idea if it will work on your switch - but I just looked in my IOS directory, and I have the following:

cat2948g-in-mz.120-25.W5.27.bin

I don't know where it came from, though - I tend to TFTP off the boot image on every piece of Cisco hardware I get just in case...

I just did a bit of Googling, and I found this - I guess from the filename it's newer than the version I have...

http://www.ti.net.ge/mrtg/ftp/cat2948g-in-mz.120-25.W5.27d.bin

Two ways to do that are xmodem (slow) or Tftp from rommon mode. (fast)
Place the IOS image in your tftp server directory and start tftp server.
Then enter the following in the switch exactly as below as all are case sensative:
rommon 1> IP_ADDRESS=xxx.xxx.xxx.xxx
rommon 2> IP_SUBNET_MASK=xxx.xxx.xxx.xxx
rommon 3> DEFAULT_GATEWAY=xxx.xxx.xxx.xxx
rommon 4> TFTP_SERVER=xxx.xxx.xxx.xxx
rommon 5> TFTP_FILE=full file name of ios as it reads
rommon 6> TFTP_CHECKSUM=0
this one is in lower case
rommon 7> tftpdnld

If you dont have a tftp server below is a link to a free one
http://www.solarwinds.net/Tools/Free_tools/TFTP_Server/

You will need the .bin IOS image for this and not the .tar file. The .tar file contains router cluster management files that you must issue the archive tar command to load all of the files. Can do that if needed after router is back online.

P.S.: If this information was helpful, please rate this solution.

Cisco switches dont have a default password.
You will have to perform a password recovery process that is quite extensive.
You need to console into the switch using hyperterminal or teraterm and follow these instructions located at: http://www.cisco.com/en/US/products/hw/switches/ps628/products_password_recovery09186a0080094184.shtml