The following discussion provides some background on why dense wavelength division multiplexing (DWDM) is an important innovation in optical networks and what benefits it can provide.
We begin with a high-level view of the segments of the global network and the economic forces driving the revolution in fiber optic networks.
preview:
http://www.cisco.com/univercd/cc/td/doc/product/mels/dwdm/dwdm_fns.htm
5/10/2002
