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Generalized Traffic Engineering Protocol for Multi-Layer GMPLS Networks
Eiji OKI Daisaku SHIMAZAKI Kohei SHIOMOTO Shigeo URUSHIDANI
IEICE TRANSACTIONS on Communications
Publication Date: 2005/10/01
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Next Generation Photonic Network Technologies)
GMPLS, traffic engineering, multi-layer network,
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This paper proposes a Generalized Traffic Engineering Protocol (GTEP). GTEP is a protocol that permits communication between a Path Computation Element (PCE) and a Generalized Multi-Protocol Label Switching (GMPLS) controller (CNTL). The latter is hosted by each GMPLS node; it handles GMPLS and MPLS protocols such as routing and signaling protocols as well as controlling the GMPLS node host. The PCE provides multi-layer traffic engineering; it calculates Label Switched Path (LSP) routes and judges whether a new lower-layer LSP should be established. GTEP functions are implemented in both the PCE and GMPLS router. We demonstrate a multi-layer traffic engineering experiment conducted with GTEP.