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Institute of Communication Networks and Computer Engineering (IKR)
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IKR Publication No 40752 |
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Publication No 40752
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Author(s)
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Enderle, T.*; Witt, A.*; Christou, F.*
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Title
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Delay-Differentiated Routing in Meshed Backbone Networks
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Topics
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Broadband Networks; Network Management
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Methods
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Traffic Engineering; Performance Evaluation
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Keywords
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COMMUNICATION NETWORK; BANDWIDTH ALLOCATION; TRANSPORT NETWORKS; NETWORK OPTIMIZATION
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Abstract
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Today's network applications require strict quality of service (QoS) guarantees, e. g., in terms of availability or delay. Due to shortest path routing in backbone networks, the point-to-point delay is usually very low. However, this is not only true for the services with strict delay requirements but also for all others. Since there is no customer-perceivable delay difference, it is difficult for the network operator to justify differences in pricing between low-delay and other services. We propose a routing and network reconfiguration approach for packet-optical networks that enforces delay differentiation by routing on non-shortest paths. We present an integer linear program formulation and study the effects of our approach by simulation in two backbone topologies. We show that a considerable number of services can be routed with delay differentiation if the use of additional spectral resources is allowed.
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Year
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2020
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Reference entry
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Enderle, T.; Witt, A.; Christou, F.
Delay-Differentiated Routing in Meshed Backbone Networks
Proceedings of the 21st ITG-Symposium in Photonic Networks 2020, November 2020, pp. 20-27
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BibTex file
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Authors marked with an asterisk (*) were IKR staff members at the time the publication has been written.
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