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New Member

GBIC LX SFP problem on cat3750

hi,

how was this possible ? i've tried on diff IOS and face same problem. thanks

00:03:30: %GBIC_SECURITY_CRYPT-4-ID_MISMATCH: Identification check failed for GBIC in port 65561

00:03:30: %PM-4-ERR_DISABLE: gbic-invalid error detected on Gi1/0/25, putting Gi1/0/25 in err-disable

22:28:52: %GBIC_SECURITY_CRYPT-4-ID_MISMATCH: Identification check failed for GBIC in port 65537

22:28:52: %PM-4-ERR_DISABLE: gbic-invalid error detected on Gi1/0/1, putting Gi1/0/1 in err-disable state

00:09:32: %GBIC_SECURITY_CRYPT-4-ID_MISMATCH: Identification check failed for GBIC in port 65561

00:09:32: %PM-4-ERR_DISABLE: gbic-invalid error detected on Gi1/0/25, putting Gi1/0/25 in err-disable state

  • Other Network Infrastructure Subjects
4 REPLIES
VIP Purple

Re: GBIC LX SFP problem on cat3750

Hello,

which IOS have you tried ? It looks like 12.2(20)SE is required for the 100Base-LX SFP...

Regards,

GP

Purple

Re: GBIC LX SFP problem on cat3750

Sometimes these switches only like Cisco gbics and have problesm with non OEM gbics .

New Member

Re: GBIC LX SFP problem on cat3750

im using cisco gbic

1 of the IOS i tried was ipbasek9-122-25.SEC2

12.2.20(SE) no longer available

Re: GBIC LX SFP problem on cat3750

Hi,

If its a Cisco GBIC, it should get recognised as you meet the IOS requirement. Is it the only one with which u r facing the problem or some others too.

There are some fake GBICS in the market to with exact look alike as the cisco one. Please open a TAC request along with the model and product number of the GBIC u r using and TAC should be able to help you in this matter.

regards,

-amit singh

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