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Questions tagged [3com]

39 questions
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HP networking unstable over fiber connection

I have a 3com Baseline Switch 2928 that's connected over fiber to a 3com superstack 4500. The fiber is singlemode and has the suitable SFP modules on both switches. The switches (and connected devices) have working networking but it's very…
Michael Anckaert
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NIC cards for ClearOS box (or other software proxy/firewall)?

I am building a few ClearOS boxes, and am trying to use components I have available without purchasing anything (yet) if possible. I have some 3com 3C905-TX cards, a 3C SOHO-100, some 3C905B-TX cards, some 3C905CX-TX-M then some other generic…
Scott Szretter
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Manual for 3Com SuperStack II NETBuilder?

I have a client with a 3Com SuperStack II NETBuilder (3C8432), and he wants me to set it up for him. The only problem is that I have no experience with these routers and I can't find it's manual anywhere. Does anyone know where I can find the…
Soviero
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3COM 3870 Switch Fan Failed alert

I have a 3COM 3870 switch that is randomly getting a Fan Failure alert. When I took the cover off, all the fans appear to be working fine - even when it is faulting. None are grinding or making any noise. The switch will randomly stop all the…
John P
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Troubleshoot 3COM 3001 NBX ip_unknown problem

Things are getting pretty desperate here... My 3001 NBX from 3com (R6_5_20) has been working perfectly for months... Now it works for more or less an hour and then all the phones in the branch offices (one connected in wi-fi, 1 km distance and…
Pitto
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Do 3Com switches support generic SFPs?

I have a 4200 series switch with an empty sfp port, and existing unused fiber run (62.5nm multimode) to another building that I hope to bring up, with a 1000base-SX connection on the other end. Unfortunately I'm having trouble finding a 3Com…
Joel Coel
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Adding 10GbE to a ring of 3com 4200 switches

We have 5 3com 4200 switches forming a ring (connected using 10GBase-CX4 XENPAK modules) and would like to add a few servers with 10GbE adapters soon. The offer we are currently looking at consists of a Voltaire 6024 10GbE switch and various…
user25417
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Problem connecting a 3Com 2952-Plus switch to a Cisco 3750 switch

Connected a 3Com 2952-SFP Plus switch to a Cisco 3750 switch via fibre. There is a light on the 3Com end, but nothing at the Cisco end, and no traffic will flow. Have swapped SFP's, have swapped fibre cables, have used a different port on the Cisco,…
Noel
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3COM Switches that have 1000Base-X SFP ports

I have been upgrading switches at the company I work for and their technology here is prehistoric, but the new switches I have received from my director are the 3COM 2928-SFP Plus. I have been reading the manuals and doing some searching around for…
1Tguru4l1f3
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