| Author |
Message |
Andy Lawson
Guest
|
 Posted:
Wed Jan 19, 2005 3:27 pm Post subject:
Disable stacking 3com 4250T |
|
|
Hi all,
We've bought a whole bunch of 3com 4250T 50 port switches. These have 48
10/100 ports, and 2 10/100/1000 uplink ports. At least that's what we
thought before we bought them.
If you connect one of the uplink port to another 4250, the two form a
stack, presumably sharing a switch db, etc. It's possible to connect
upto 4 switches in this way. Unfortunately, I need to connect 5.
The original plan was just to connect these switches together into a
ring, and have STP cope with the redundant loop and block one of the
ports. I need to put a Cisco 3550 into the ring too, and have bought the
relevant GBICs to do this. We could then survive a loss of one of the
interconnect cables.
What I'd like to do is disable stacking on these switches altogether -
we're not going to be doing any fancy management of the stack, I just
want five independent switches which form a resilient ring.
Anybody know if this can or can't be done?
Cheers,
Andy. |
|
| Back to top |
|
 |
Andy Lawson
Guest
|
| Posted:
Thu Jan 20, 2005 11:54 pm Post subject:
Re: Disable stacking 3com 4250T |
|
|
Spoke to 3com today, who say it is impossible to disable stacking.
The engineer suggested buying 4400 range switches, which stack up to 8,
or back-revving the firmware to <2.0, which doesn't support stacking. |
|
| Back to top |
|
|
jeroenvm
Joined: 19 Jul 2005
Posts: 1
|
| Posted:
Tue Jul 19, 2005 2:51 pm Post subject:
Solution for disabling stacking on 3com 4200 series |
|
|
Hello, I had same problem, we have two 3Com 4250T switches, and I want to link them to each other using the gigabit ethernet port. When I did that they started stack-renumbering and formed a stack together.
This is how I solved it:
If you don't want your switches to for a stack:
Do not connect a port number 49 to a port number 50, but always connect port 49 from one switch to port 49 on the other switch. This is the same for port 50, connect it to a port 50 on the third switch.
If your swiches have been stacking in the past, you might want to do a initialisation (you loose all config data except ip-settings). In telnet or on the console type: system control initialize
Kind regards,
Jeroen Vermeulen
Alpahega Hosting -
http://www.alphamegahosting.com (Dutch)
http://www.euanswers.com (English) |
|
| Back to top |
|
|
|
|
|
|
FAQ
Memberlist
Register
Profile
Log in to check your private messages
Log in
