Generalized Traffic Engineering Protocol for Multi-Layer GMPLS Networks

Eiji OKI  Daisaku SHIMAZAKI  Kohei SHIOMOTO  Shigeo URUSHIDANI  

Publication
IEICE TRANSACTIONS on Communications   Vol.E88-B   No.10   pp.3886-3894
Publication Date: 2005/10/01
Online ISSN: 
DOI: 10.1093/ietcom/e88-b.10.3886
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Next Generation Photonic Network Technologies)
Category: 
Keyword: 
GMPLS,  traffic engineering,  multi-layer network,  

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Summary: 
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.