Traffic Engineering Using Segment Routing and Considering Requirements of a Carrier IP Network

Autor(en): Schueller, Timmy
Aschenbruck, Nils 
Chimani, Markus 
Horneffer, Martin
Schnitter, Stefan
Stichwörter: Computer Science; Computer Science, Hardware & Architecture; Computer Science, Theory & Methods; Engineering; Engineering, Electrical & Electronic; global optimization; segment routing; Telecommunications; Traffic analysis; traffic engineering
Erscheinungsdatum: 2018
Herausgeber: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Journal: IEEE-ACM TRANSACTIONS ON NETWORKING
Volumen: 26
Ausgabe: 4
Startseite: 1851
Seitenende: 1864
Zusammenfassung: 
Internet Service Providers are challenged by increasing traffic demands. Advanced Traffic Engineering (TE) is one way to overcome this challenge. Segment Routing (SR) is a relatively new approach for TE. To decide whether SR is a good approach for deployment in carrier IP backbone networks, it has to show its benefits in real-world scenarios and still needs to be feasible from the network operation and management point of view. In this paper, we analyze traffic data from a European tier one backbone network from 2011 to 2015. The total traffic increases significantly throughout that period. We analyze geographic differences to select representative traffic peak times as reference scenarios for an evaluation of TE using SR for real-world topologies and traffic demands. Finally, we extend the existing SR formulations to consider requirements from network operation and management. Our evaluation results show that the SR yields close to optimal results while still being deployable with reasonable effort.
ISSN: 10636692
DOI: 10.1109/TNET.2018.2854610

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