Traffic Engineering Using OSPF Weights and Splitting Ratios
J. Murphy,Richard J. Harris,Richard Nelson +2 more
- Vol. 2013, pp 277-287
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TLDR
The method presented here offers the ability to perform Traffic flow optimisation without maintaining any per flow state in routers and without introducing additional protocols or packet overhead, unlike MPLS which is commonly used for Traffic Engineering.Abstract:
A method is proposed to perform traffic engineering for Autonomous Systems by setting OSPF weights and distributing new metrics called node splitting ratios The quality of the traffic engineering is comparable to that achievable using MPLS The weights and splitting ratios can be calculated using linear programming techniques This potentially allows the solution of very large problems of a scale often found in an ISP backbone Furthermore changes to network topology or addition of new flows can be easily done without performing the whole optimisation procedure The method we have presented here offers the ability to perform Traffic flow optimisation without maintaining any per flow state in routers and without introducing additional protocols or packet overhead, unlike MPLS which is commonly used for Traffic Engineeringread more
Citations
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Internet Traffic Matrices: A Primer
Paul Tune,Matthew Roughan +1 more
TL;DR: This chapter explores the various issues involved in measuring and characterising traffic matrices, and summarises open questions in Internet traffic matrix research, providing a list of resources useful for the researcher and practitioner.
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Dynamic topologies for sustainable and energy efficient traffic routing
TL;DR: A network transformation is proposed and mathematical programming models that results in energy optimal topologies for given traffic loads are introduced that reduce the average network power consumption by approximately 12-52%.
A simple IP flow blocking model
TL;DR: This paper presents an analytical model that allows the calculation of overflow probabilities for flows, transmitted via a bottleneck connection, and can be used as a generic flow blocking model, i.e. when call rates are drawn from probability distributions.
Recent advances in networking
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Scheme for alternative packet overflow routing (SAPOR)
TL;DR: SAPOR (scheme for alternative packet overflow routing), which realises a methodology that can remember the routing of packets for the duration of a micro flow, allows the rerouting of overflow traffic.
References
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TL;DR: The question the authors are trying to ask is: how many units of water can they send from the source to the sink per unit of time?
Proceedings ArticleDOI
Internet traffic engineering by optimizing OSPF weights
Bernard Fortz,Mikkel Thorup +1 more
TL;DR: Surprisingly it turned out that for the proposed AT&T WorldNet backbone, weight settings that performed within a few percent from that of the optimal general routing where the flow for each demand is optimally distributed over all paths between source and destination.
Internet QoS: the Big Picture
TL;DR: In this paper, the authors present a framework for the emerging Internet Quality of Service (QoS) All the important components of this framework, ie, Integrated Services, RSVP, Differentiated Services, Multi-Protocol Label Switching (MPLS) and Constraint Based Routing are covered.
Journal ArticleDOI
Internet QoS: a big picture
Xipeng Xiao,Lionel M. Ni +1 more
TL;DR: This paper presents a framework for the emerging Internet Quality of Service (QoS), and describes why MPLS and Constraint Based Routing have been introduced into this framework, how they differ from and relate to each other, and where they fit into the Differentiated Services architecture.
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Routing in the Internet
TL;DR: This paper presents an introduction to Routing in the Internet, focusing on RIP and OSPF and the Structure of Interconnections, and the structure of Multicast Routing.