[c-nsp] Unsupported SFP on Cisco 2960

[JP Senior]

I've interpreted the warning as Cisco removing their support and liability requirements for the optics themselves, "My SFP doesn't work, help".  I wouldn't expect any data issues whatsoever.  They'll continue to support the switch as normal for non-gbic issues.  I've been running service unsupported-transceiver for many years with no issues.  As long as it's [eventually] recognized, it's good. 

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Scott Granados
Sent: 25 July 2012 12:10 PM
To: pamela pomary
Cc: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] Unsupported SFP on Cisco 2960

The only problem you're likely to have is with your wallet if you buy Cisco branded optics.:)

Others may disagree but I have never had any problem with 3rd party transceivers in lots of products including the 2900 series.

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
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