[c-nsp] Unsupported SFP on Cisco 2960

[John Gill]

The SFP is a standard, and if there is any problem with that link, it is 
just a reasonable expectation that you won't ask TAC to troubleshoot it 
or tell you what is wrong with it, and obviously can't replace it.

There are certainly certified SFPs that work great and others that will 
be flaky.  If cisco makes a flaky model, it's our responsibility to 
support/replace/fix that issue.  If you have a problem with a 3rd party 
SFP, you would just need to take it up with them.

Regards,
John Gill
cisco


On 7/25/12 2:29 PM, pamela pomary wrote:
> Thank you all folks for your quick responses. Am grateful :). I can breathe
> a sigh of relief now.
>
> On Wed, Jul 25, 2012 at 6:17 PM, Jared Mauch <jared at puck.nether.net> wrote:
>
>> You will only save money. SFP is a standard media just like USB ports.
>>
>> Jared Mauch
>>
>> On Jul 25, 2012, at 2:02 PM, pamela pomary <ppomary at gmail.com> wrote:
>>
>>> Hello Folks,
>>>
>>> I have a peculiar problem. I have followed postings in the forum and I
>>> believe your experience with Cisco networks will help answer my question.
>>>
>>> I have a Cisco 2960 with Gigabit SFP module. I connected a third party
>>> addon SFP GBIC to 2960 switch and I get the following error that disables
>>> the interface.
>>>
>>> *Mar 16 21:05:15.720: %GBIC_SECURITY_CRYPT-4-VN_DATA_CRC_ERROR: GBIC in
>>> port Gi0/2 has bad crc
>>> *Mar 16 21:05:15.720: %PM-4-ERR_DISABLE: gbic-invalid error detected on
>>> Gi0/2, putting Gi0/2 in err-disable state
>>>
>>> After checking online I found these two command lines that corrects the
>>> error
>>> on the Cisco 2960 switch and brings the interface up.
>>>
>>> 1) no errdisable detect cause gbic-invalid
>>> 2) service unsupported-transceiver
>>>
>>> Cisco 2960 switch however reported a warning on entering the second
>> command:
>>>
>>> "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."
>>>
>>> I understand Cisco's warranty terms mentioned in the above Warning.
>>>
>>> My worry is, is it safe to do this. Is it likely I will have problems in
>>> future
>>> with the switch. Am I likely to experience abnormal data transfer on the
>>> network in future?
>>>
>>>
>>> Thank You
>>>
>>> Pamela Pomary
>>> ICT Dept.
>>> University of Ghana
>>> _______________________________________________
>>> cisco-nsp mailing list  cisco-nsp at puck.nether.net
>>> https://puck.nether.net/mailman/listinfo/cisco-nsp
>>> archive at http://puck.nether.net/pipermail/cisco-nsp/
>>
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