Benefits of traffic engineering using QoS routing schemes and network controls

2004 ◽  
Vol 27 (5) ◽  
pp. 387-399 ◽  
Author(s):  
Shekhar Srivastava ◽  
Balaji Krithikaivasan ◽  
Cory Beard ◽  
Deep Medhi ◽  
Appie van de Liefvoort ◽  
...  



2006 ◽  
Vol 50 (7) ◽  
pp. 966-981 ◽  
Author(s):  
Antonio Capone ◽  
Luigi Fratta ◽  
Fabio Martignon
Keyword(s):  


2017 ◽  
Vol 5 (1) ◽  
pp. 92-115
Author(s):  
Siamak Layeghy ◽  
Farzaneh Pakzad ◽  
Marius Portmann

In this paper, we introduce SCOR (Software-defined Constrained Optimal Routing), a new Software Defined Networking (SDN) Northbound Interface for QoS routing and traffic engineering. SCOR is based on constraint-programming techniques and is implemented in the MiniZinc modelling language. It provides a powerful, high-level abstraction layer, consisting of 10 basic constraint-programming predicates. A key feature of SCOR is that it is declarative, where only the constraints and utility function of the routing problem need to be expressed, and the complexity of solving the problem is hidden from the user, and handled by a powerful generic solver. We show that the interface (set of predicates) of SCOR is sufficiently expressive to handle all the known and relevant QoS routing problems. We further demonstrate the practicality and scalability of the approach via a number of example scenarios, with varying network topologies, network sizes and number of flows.



1972 ◽  
Vol 25 (4) ◽  
pp. 511-519
Author(s):  
J. F. Kemp

In this paper a study is made of that area of marine traffic engineering which is concerned with collision avoidance, and within that area the sub-section in which human factors are involved.Collision avoidance at sea is mainly achieved by adherence to the rules for preventing collisions, by routing schemes for separating traffic in high density areas and, within certain port limits, by local rules and advisory services, or occasionally by direct control of ship movements. To these well defined factors may be added the mariner's accumulated experience and instinct for self-preservation which gives rise to such nebulous, but not negligible, entities as the ‘seaman's eye’ and the ‘navigator's sixth sense’.



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