Is there any tool that verify the authenticity and originality of Cisco SFP modules via part # or Serial #.
Does the SFP have a Cisco logo? If it does, then it's genuine.
Another method is to insert the SFP into any port. Counterfeit will cause the port to go into error-disable.
Finally, send the serial number to TAC and they can verify.
Counterfeit cisco sfps can have cisco logo.
I would check if the serial match on bag, sfp and in the system.
The serial should be in format: 3 letters, followed by 4 numbers, followed by 4 letters/numbers.
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