[c-nsp] SFP & GBIC module compatibility

[Gert Doering]

Hi,

On Tue, Dec 19, 2006 at 10:10:00PM -0500, Bill Wichers wrote:
> My guess is that some manufacturers are reading keys from the EEPROM to
> determine if the optic is "authorized" or something like that since I
> don't see any other pattern. I suppose that means non-vendor branded SFPs
> *might* work, but you should test before saying anything for sure. If they
> work they should stay working though, 

It has happened in the past, both with Cisco and with HP, that after
a software upgrade, previously-working SFPs or GBICs stopped working.

So: if you use non-brand optics, be prepared to yell at your vendor if
they play that nasty trick on you.

gert


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Gert Doering - Munich, Germany                             gert at greenie.muc.de
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