A while ago I was pushed (actually it was a kind nudge) into another interesting technology area: optical networks, with emphasis on IP over DWDM. I realized almost immediately that I’d encountered another huge can of worms. A few issues you can stumble across when trying to plug routers or switches directly into DWDM networks are documented in my IP over dense wave division multiplexing (DWDM): Metro and core issues article recently published by SearchTelecom.com.
Ivan Pepelnjak, CCIE#1354, is the chief technology advisor for NIL Data Communications. He has been designing and implementing large-scale data communications networks as well as teaching and writing books about advanced technologies since 1990. See his full profile, contact him or follow @ioshints on Twitter.