[c-nsp] Cisco and third party transceivers

[Dennis]

On Tue, Sep 27, 2011 at 1:17 PM, Martin T <m4rtntns at gmail.com> wrote:
> Hello,
> there are providers like Flexoptix(http://www.flexoptix.net) who are
> able to flash SFP EEPROM memory with different vendor data, probably
> set custom serial numbers etc. However, why is such service needed at
> nowadays for Cisco equipment? Every router/switch I have seen supports
> the "service unsupported-transceiver"(should turn of checking the
> "Cisco Quality ID") and "no errdisable detect cause gbic-invalid"
> commands and thus doesn't check the ID code in EEPROM..
> In addition, am I correct, that some old Cisco IOS versions did not
> have the "service unsupported-transceiver" and "no errdisable detect
> cause gbic-invalid" commands and thus one really was forced to use
> transceivers with Cisco serials?
>

Some ASAs won't take some 3rd party transceivers no matter what voodoo
you type, as far as I've been able to figure out anyway.  It really
depends on your business model so to speak.