Experimental Validation of Active Frontend - Backend Stateful PCE Operations in Flexgrid Optical Network Re-optimization

A PCE-based strategy for LSP re-optimization in flexgrid optical networks is experimentally validated. A front- and back-end stateful PCE architecture is deployed, wherein automatic and coordinated operations (e.g., computation delegation, database synchronization, etc.) are demonstrated using PCEP and BGP-LS protocols.Grant numbers : This work was partially funded by the EC's FP7 (IP IDEALIST project – 317999), and by Spanish MINECO (FARO and ELASTIC projects,TEC2012-38119.© 2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works