A NETWORK ARCHITECTURE FOR PROVIDING LEGACY NETWORK SERVICES AND NEXT-GENERATION ACCESS NETWORK SERVICES HAVING A SELF-RESTORING FUNCTION AND A METHOD FOR CONFIGURING OPTICAL PATH THEREIN

摘要

PURPOSE: A network structure for providing existing network services and next-generation network services with a self restoring function and a method for configuring an optical path in the network structure are provided to satisfy evolution to a new NG-PON(New-Generation Passive Optical Network) service and performance upgrading, thereby flexibly releasing a restoring function which drastically improves reliability of a network. CONSTITUTION: A central base station comprises the first legacy PON OLT and the second WDM-PON OLT. The first legacy PON OLT offers an existing PON service. The second WDM-PON OLT offers an NG-PON service. A remote node(RN) comprises the first and second MUX/DEMUX.