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Setting up a new/used 3Com Switch 4500 PWR 26-Port

Posted on 2011-03-16
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Last Modified: 2012-05-11
I have recently purchased a used 3Com 4500 switch. When I power it on, it cycles through the BOOTROM Interface, I press Ctrl+B to enter Boot Menu and then I am lost.
I do have another 4500 identical to the one I bought that is in production. I want to be able to copy what ever files I need from that one and apply it to this new one.
I have read posts from here and unable to find how to copy from the existing one. One post said to copy the ROM,App, and cfg from my working switch, but didn't explain how.  Any help would be most appreciated.  Thank you.
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Question by:LB1109
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by:RKinsp
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Hello LB,

If i understood correctly, the switch is working you are just trying to figure out how to import a configuration, firmware, bootrom right?

I don't really see a need to update the bootrom/firmware unless there is a bug that affects you.

To reset the configuration after you enter Boot rom you can delete the past configuration using:
reset saved-configuration
(if that doesn't work, try "system-view" then "reset saved configuration")

This will delete the past config, and you can reboot the system without using ctrl-B, it will come up with no config.

Now, there is a way to TFTP a configuration file on there, however the easiest way is to Copy-Paste the config.

Console access to the switch which has the config you want to use, do a "display current". Copy the output to a notepad text file.

Edit major points like IP Addresses (you don't want repeats on your network) and VLANs.

Access the new switch, go to system-view to enable editing. Copy from notepad to the new switch CLI.

Use "save" to save the current config.

And that should get you started.

good luck

-RK





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by:LB1109
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Thank you for your reply, can I ask you to please back up one or two steps? When I connect to this switch via console port, I see the initial boot phase of the switch that says Starting.....
Press Ctrl + B to enter Boot Menu...3, 2, 1, 0
And it will repeat over & over. I am not getting a command line where I can type "display current" or anything else.
My only option is to press Ctrl+B, then I see a Boot Menu, I can only take menu option 0-9.  I am not sure which one of these to take.
1. Download application file to flash
2. Select application file to boot
3. Display all files in flash
4. Delete file from flash
5. Modify bootrom password
6. Enter bootrom upgrade menu
7. Skip current configuration file
8. Set bootrom password recovery
9. Set switch startup mode
0. Reboot

Thank you.
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by:RKinsp
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You want to go with option 7. It will start up the switch without the configuration.

Then you can follow the previous steps!

Let me know if you need more details.

-RK
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by:LB1109
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Enter your choice(0-9): 7
The current setting is skipping configuration file when reboot.
Are you sure you want to skip the current configuration file when rebooting? Yes
 or No(Y/N)y


        BOOT  MENU

1. Download application file to flash
2. Select application file to boot
3. Display all files in flash
4. Delete file from flash
5. Modify bootrom password
6. Enter bootrom upgrade menu
7. Skip current configuration file
8. Set bootrom password recovery
9. Set switch startup mode
0. Reboot

Enter your choice(0-9):
After taking option 7, it brings me back to the Boot Menu.
I took option 0. Reboot and this is what I am getting.  Still unable to get a command line to type any commands. Just the Boot Menu that I am unable to get past.

Press Ctrl-B to enter Boot Menu... 0
Auto-booting...

No correct default file to boot!

Starting......
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by:LB1109
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When I take option 3. Display all files in flash...this is what I get

Enter your choice(0-9): 3
No File In flash Filesystem!
Free Space: 7281664 bytes


        BOOT  MENU

1. Download application file to flash
2. Select application file to boot
3. Display all files in flash
4. Delete file from flash
5. Modify bootrom password
6. Enter bootrom upgrade menu
7. Skip current configuration file
8. Set bootrom password recovery
9. Set switch startup mode
0. Reboot

Enter your choice(0-9):
0
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by:LB1109
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When I take option 1. Download application file to flash, I am unable to provide a .app file.
All I have from an identical switch in production is a .cfg file and .txt file that I have changed the name and IP Address so I can hopefully upload this new .txt file with new name and new IP Address to get it working. I know very little about these switches. Previous purchased switches worked just fine for me to just copy the new config, but this time we decided to purchase a refurbished one. This one is just not starting up like I am use to. Thanks for any help, I am just not finding any documentation, manuals, posts to help me get this going.
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RKinsp earned 500 total points
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Ok, looks like the last user erased the bootrom and firmware. You will have to update the bootrom and version.

download the newest firmware/bootrom - https://h10145.www1.hp.com/Downloads/ProductsList.aspx?lang=en&cc=us&prodSeriesId=4199829

the downloads are typically an exe zip file that include firmware (.app) and bootrom (.btm).

After downloading you have to follow the procedure for uploading through the boot menu. You can use TFTP or if you want to stick to console, you can use XMODEM.  XMODEM is typically very slow, but you don't have to configure a TFTP server.

The config guide has the step by step, but i'll write the steps below.. (http://h20000.www2.hp.com/bizsupport/TechSupport/CoreRedirect.jsp?redirectReason=DocIndexPDF&prodSeriesId=4199829&targetPage=http%3A%2F%2Fbizsupport1.austin.hp.com%2Fbc%2Fdocs%2Fsupport%2FSupportManual%2Fc02579469%2Fc02579469.pdf)

Basically what you are going to do is select 6 - bootrom upgrade menu. Then 3 - XMODEM parameter, then 5 for baud rate of 115200 (faster) .

On your windows, change the name of the bootrom file to to boot.btm. accessing the console, run Hyperterminal, re-connect at the new baud rate. On hyperterminal, you can select Transfer/send file and upload the bootrom file.

Upload the Application file the same way. from the main boot menu 1 - 3 - 5. You dont have to change the app file name, but afterwords you have to selection file to boot from. Main boot menu, option 2.

This should get you booting and ready to start.
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by:RKinsp
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App file = Firmware
BTM file = bootrom
CFG file = configuration (it's really just a txt file renamed)
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by:RKinsp
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by:LB1109
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That did it !!
Thank you very much for your patience and links to help me get the App file and BTM file to get this formatted used 4500 switch working.
Previous posts with links to the App file and BTM file are no longer valid since 3Com was taken over by HP.  I have added those to my favorites.
I appreciate your help.
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by:RKinsp
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No problem! in my honest opinion, I actually think HP made it easier to find stuff

http://h17007.www1.hp.com/us/en/support/converter/index.aspx

ps: feel free to "accept" whichever post helped you out the most ;-)

-RK
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