[c-nsp] 3rd party Xenpak for 65xx

[Blake Willis]

Hi Arnold,

 	I can confirm for you that the "unsupported-transceiver" commands that 
enable 3rd-party SFPs change nothing at all for a 3rd-party Xenpak. You're 
probably limited to "compatible" produts like Photonteck, AAC, Advantage 
Optics, or Fluxlight, which last I checked (admittedly a while ago) were the 
same price or more expensive than the equivalent Cisco part. The most credible 
seems to be Fluxlight (3 year warranty), but I haven't seen or tested any of 
them.

 	As a sidenote, *a few* of the Cisco-branded LR Xenpaks we have are 
digital-diagnostic enabled, but most are not, and on average the lasers on the 
DD units tend to be about 1dB weaker than the non-DD devices (probably due at 
least in part to the beam-splitter used for the measurement sensor). In order 
to tell them apart, it seems that the DD parts have a much thicker metal front 
flange.  Anyone else have experience with this?

  -Blake

---
  Blake Willis
  Network Engineer
  blake at 2112.net