APPARATUS AND A METHOD FOR MANAGING A MULTILEVEL LINK BASED ON GMPLS(GENERALIZED MULTIPROTOCOL LABEL SWITCHING) IN A MULTILEVEL NETWORK CAPABLE OF CONTROLLING A MULTILEVEL LINK ONLY WITH A GMPLS CONTROL PLANE

摘要

PURPOSE: An apparatus and a method for managing a multilevel link based on GMPLS(Generalized Multiprotocol Label Switching) in a multilevel network are provided to perform the fast error detection and protection switching of a multilevel link by improving the error detection function of the multilevel link.;CONSTITUTION: A multilevel link management apparatus(200) includes a control channel(210), a TE(Traffic Engineering) link stack(220), a packet transmission layer(230), and a light transmission layer(240). The control channel is used to exchange link management protocol information with an adjacent node. The packet transmission layer includes a PTL(Packet Transport Layer) TE link(231), a PTL link stack(232), and a PTL data link(233). The light transmission layer includes an OTL(Optical Transport Layer) TE link(241), an OTL link stack(242), and an OTL data link(243).;COPYRIGHT KIPO 2012