%PHY-4-SFP_NOT_SUPPORTED: The SFP in (PortNo#) is not Supported - Cisco Catalyst 2960 X Series (WS-C2960X-48TS-LL)

I am trying to add a non cisco SFP between two catalysts, and am getting the error %PHY-4-SFP_NOT_SUPPORTED: The SFP in (PortNo#) is not Supported.

I have tried running the commands:

Switch(config)#service internal
Switch(config)#no errdisable detect cause gbic-invalid
Switch(config)#service unsupported-transceiver
Switch(config)#int gi0/49
Switch(config-if)#no shutdown
Switch(config-if)#do copy run start

However, the issue is still occurring. I have rebooted the switch after the above with no joy. Cable being used is a StarTech 3m SFP+ 10-Gigabit Ethernet (10Gbe) Twinax Cable. I will be upgrading the firmware to 15.2.6 while waiting for a reply.

Any help will be appreciated.

Switch Ports Model                     SW Version            SW Image            
------ ----- -----                     ----------            ----------          
*    1 50    WS-C2960X-48TS-LL         15.2(2)E6             C2960X-UNIVERSALK9-M
Who is Participating?
nader alkahtaniConnect With a Mentor Network EngineerCommented:
I research, I found the below results :
Your switch support SFP not SFP+
You plugged  SFP 10 in 1 gig slot which is incompatible
The upgrading won't help you.
Solution :
Try a compatible  SFP 1 gig
Nader Alkahtani
nader alkahtaniNetwork EngineerCommented:
Try the following solution :
In addition to commands that you posted above :
1.unpluge (remove) the SFP
3.no shutdown
4.repluge the SFP
SteveDSLAuthor Commented:
I tried the above, and I am still getting the error. Entry shown below:

FLROrp-Cat02#config t
Enter configuration commands, one per line.  End with CNTL/Z.
FLROrp-Cat02(config)#service internal
FLROrp-Cat02(config)#no errdisable detect cause gbic-invalid
FLROrp-Cat02(config)#service unsupported-transceiver
 Warning: When Cisco determines that a fault or defect can be traced to
the use of third-party transceivers installed by a customer or reseller,
then, at Cisco's discretion, Cisco may withhold support under warranty or
a Cisco support program. In the course of providing support for a Cisco
networking product Cisco may require that the end user install Cisco
transceivers if Cisco determines that removing third-party parts will
assist Cisco in diagnosing the cause of a support issue.

FLROrp-Cat02(config)#int gi0/49
Sep  9 14:41:03.259: %LINK-5-CHANGED: Interface GigabitEthernet0/49, changed state to administratively down
FLROrp-Cat02(config-if)#no shutdown
Sep  9 14:41:12.528: %LINK-3-UPDOWN: Interface GigabitEthernet0/49, changed state to down
Sep  9 14:41:23.825: %PHY-4-SFP_NOT_SUPPORTED: The SFP in Gi0/49 is not supported
Get Cisco Certified in IT Security

There’s a high demand for IT security experts and network administrators who can safeguard the data that individuals, corporations, and governments rely on every day. Pursue your B.S. in Network Operations and Security and gain the credentials you need for this high-growth field.

SteveDSLAuthor Commented:
Thanks Nader, I will go back to the supplier.
nader alkahtaniNetwork EngineerCommented:
you are very welcome, I am very glad to hear you
nader alkahtaniNetwork EngineerCommented:
Any update ?
nader alkahtaniNetwork EngineerCommented:
The question got a long time so that should be closed
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

All Courses

From novice to tech pro — start learning today.