Cisco SFP port for Computer

Hello All,
  I have a question, I have an SFP card with a TWINX cable. I wanted to connect this directly into our switch for our 10GB backbone, the goal being to allow our SCCM server imaging @ 10GB. My Question is, can I connect a Computer directly into an SFP port on a Cisco switch? The Computer recognizes a connection, however, the Cisco device does not. The computer can send but not receive. My guess is that the Cisco device is not configured to receive traffic on this port. Now I have configured the SFP port as "switchport access VLAN 5" but I am still not getting receive data from the computer. Does anyone know if I need to configure my SFP port on the switch in a different way? Can anyone help with the command needed? Keep in mind computer has link light, Cisco does not.

Thanks all!!!!
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Jody LemoineNetwork ArchitectCommented:
You sure can. I have a pair of VMware ESXi servers connected to a Cisco Catalyst 2960X stack with SFP+ twinax cables and it works like a charm.
Jody LemoineNetwork ArchitectCommented:
Is the twinax interface in the switch showing as up/up?
Jody LemoineNetwork ArchitectCommented:
Also, have you tried a different twinax cable? One-way data may be due to a faulty cable.
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wadneyAuthor Commented:
Hey Jody,
   Thanks for the reply, I just replaced the cable and am getting the same result, link light on server but none on the switch. Is UDLD enabled by default on Fiber Optic ports, if so do I need to disable that for the switch to allow connection?
Jody LemoineNetwork ArchitectCommented:
UDLD is enabled by default on fibre/SFP ports if it is enabled globally. It should be disabled on the port if it hasn't been already. If it's enabled, it may be the root of the problem as the computer likely doesn't know anything about UDLD and won't respond to queries.
wadneyAuthor Commented:
When I ran UDLD command on Te1/0/2 -
Port enable administrative configuration setting: disabled
port enable operational state: Disabled
current bidirectional state: unknown
Is maybe port shut?
(config)# interface  Te1/0/2
(config-if)# no shut
Jody LemoineNetwork ArchitectCommented:
What model of switch are you using? Assuming it's a Catalyst, try the following:

#show interface tenGigabitEthernet 1/0/1 capabilities | include Type

You should get this:

  Type: SFP-10GBase-CX1

If you get anything else, let me know. The switch may not like your twinax cable.

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Jody LemoineNetwork ArchitectCommented:
Obviously substitute my interface numbering with yours. :)
wadneyAuthor Commented:
You were right, it did not like the Twinax, I found out that the Twinax cables have some issues with the 2960X series version of IOS. After running your command and seeing that ti was not showing SFP correctly, I installed the latest firmware and it is now connecting to my SCCM server @ full 10Gb.

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