Finisar SFP/SFP+

Faisal Imtiaz faisal at
Tue Jun 24 20:23:27 UTC 2014

Hi Nick,

Thanks for the reply, and yes, your assumption is correct.
I was exploring / wanting to know the 'code' for re-programing Finisar SFP/SFP+

I do have a programmer and the software that goes with it.

Many for the SFP/SFP+ mfg. have 'locked' eeproms, they require a special sequence of code before they can be programmed. Finisar is one of them.

I was wanting to know if there is anyone who has such code for the Finisar SFP/SFP+.


Faisal Imtiaz
Snappy Internet & Telecom
7266 SW 48 Street
Miami, FL 33155
Tel: 305 663 5518 x 232

Help-desk: (305)663-5518 Option 2 or Email: Support at 

----- Original Message -----
> From: "Nick Hilliard" <nick at>
> To: "Faisal Imtiaz" <faisal at>, "NANOG" <nanog at>
> Sent: Tuesday, June 24, 2014 3:46:15 PM
> Subject: Re: Finisar SFP/SFP+
> On 24/06/2014 17:39, Faisal Imtiaz wrote:
> > Anyone out there, know what is the 'code' sequence for programming Finisar
> > SFP / SFP+ ?
> this is a very broken question.  I'm going to assume you have a bunch of
> finisar transceivers and you want to reprogram them to look like e.g. cisco
> or juniper or whatevs.
> You can find a bunch on the internet using your favourite search engine
> with the term "sfp programmer".  The difficulty is getting one which will
> be able to reprogram your SFPs in the way that they need to be
> reprogrammed.  If the reprogrammer includes the software to do this
> properly, you're on to a winner.
> Nick

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