Compatibility
The topic transceiver compatibility is wrapped in many myths and trustworthy informations are hard to find, here we try to clarify this obscure subject.
Independent analysts and reputable insiders have addressed the phenomenon several times already. Here you'll find several of those articles:
"Cisco's Secret Franchise"
www.lightreading.com/document.asp
"Use Our Optics, or Else!"
www.lightreading.com/document.asp
"The Cisco Markup"
www.lightreading.com/survey_results.asp