Title
An SDN-enabled multi-layer protection and restoration mechanism.
Abstract
Transport networks consist of multiple layers, technologies, and areas of deployment. For example, they combine electronic packet and wavelength circuit switching in a single turnkey solution. Conventional solutions have for the longest time segregated the network management and control schemes of these layers, creating silos of operations. This legacy limits flexibility and programmability of extant solutions. In this paper, we describe PROnet, its SDN orchestrator, and a demonstration of its reliability while supporting an advanced manufacturing application running in decentralized mode. PROnet is a two-layer Research and Education Network (REN) under deployed at and around the UT Dallas campus. Resources in the PROnet Ethernet-over-Wavelength Division Multiplexing (WDM) two-layer architecture are managed by a hierarchical SDN orchestrator, which provides two critical functions: 1) on-demand multi-layer path provisioning and 2) coordinated fault handling at both layers. With the first function, the orchestrator automatically provisions optical circuits to efficiently meet the Ethernet flow fault-tolerant requirement as dictated by the application. With the second function, the orchestrator coordinates response procedures at both layers to overcome a first network outage and prepare the network to handle a potential second outage. We refer to this latter function as Multi-layer Protection (implemented at the Ethernet layer) and Restoration (implemented at the WDM layer) mechanism.
Year
DOI
Venue
2018
10.1016/j.osn.2018.05.005
Optical Switching and Networking
Keywords
Field
DocType
SDN,Optical network,Multi-layer SDN,Ethernet-over-WDM,SDN orchestrator,Protection,Restoration,Transport SDN,Service provisioning
Circuit switching,Computer science,Network packet,Computer network,Provisioning,Ethernet,Orchestration,Multiplexing,Network management,Downtime,Distributed computing
Journal
Volume
Issue
ISSN
30
C
1573-4277
Citations 
PageRank 
References 
1
0.34
8
Authors
9
Name
Order
Citations
PageRank
Behzad Mirkhanzadeh121.05
Ali Shakeri251.91
Chencheng Shao351.24
Miguel Razo4198.27
Marco Tacca515028.05
Gabriele Galimberti61810.46
Giovanni Martinelli7165.58
Marco Cardani810.34
A. Fumagalli930944.27