Transport Network Orchestration For End-To-End Multi-Layer Provisioning Across Heterogeneous Sdn/Openflow And Gmpls/Pce Control Domains
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Raul Muñoz, Ricard Vilalta, Ramon Casellas, Ricardo Martínez, Frederic Francois, Mayur Channegowda, Ali Hammad, Shuping Peng, Reza Nejabati, Dimitra Simeonidou, Noboru Yoshikane, Takehiro Tsuritani (+2 others)
2015
Abstract
A multidomain optical transport network composed of heterogeneous optical transport technologies (e.g., flexi/fixed-grid optical circuit switching and optical packet switching) and control plane technologies (e.g., centralized OpenFlow or distributed GMPLS) does not naturally interoperate, and a network orchestration mechanism is required. A network orchestrator allows the composition of end-to-end network service provisioning across multidomain optical networks comprising different transport and control plane technologies. Software-defined networking (SDN) is a key technology to address this requirement, since the separation of control and data planes makes the SDN a suitable candidate for end-to-end provisioning service orchestration across multiple domains with heterogeneous control and transport technologies. This paper presents two different network orchestration's architectures based on the application-based network operations (ABNO) which is being defined by IETF based on standard building blocks. Then, we experimentally assesses in the international testbed of the STRAUSS project, an ABNO-based network orchestrator for end-to-end multi-layer (OPS and Flexi-grid OCS) and multidomain provisioning across heterogeneous control domains (SDN/OpenFlow and GMPLS/Stateful PCE) employing dynamic domain abstraction based on virtual node aggregation.
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Date 2015-04-01
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