Abstract :
The term "metro network" encompasses the part of the network that lies between long haul networks and end customers. Although often thought to be smaller than about a hundred miles, some metropolitan networks can extend much farther. Contrary to long distance networks, which mostly carry SONET flows, metro networks can carry a variety of traffic formats, for example Ethernet, ESCON or Fibre Channel. Network nodes also have an aggregation function, combining lower speed tributaries into high-speed pipes
Keywords :
SONET; metropolitan area networks; optical fibre networks; wavelength division multiplexing; DWDM networks; ESCON; Ethernet; Fibre Channel; Resilient Packet Ring group; SONET ring technology; access networks; aggregation function; interoffice networks; metro area optical networks; optical protection; stand-alone optical transport boxes; virtual concatenation; Fiber nonlinear optics; Nonlinear optics; Optical distortion; Optical fiber devices; Optical fiber networks; Optical filters; SONET; Stimulated emission; Telecommunication traffic; Wavelength division multiplexing;
