Filters








26 Hits in 4.9 sec

Does ns2 Really Simulate MPLS Networks?

Hugo Coll, Jaime Lloret, Francisco Javier Sanchez
2008 Fourth International Conference on Autonomic and Autonomous Systems (ICAS'08)  
by the freeware simulator ns2.  ...  These results could be taken into account later to simulate real-time critical services over MPLS networks.  ...  NS2 simulations In order to measure network parameters, we have implemented the ADIF railway network as really it is in the ns2 simulator.  ... 
doi:10.1109/icas.2008.24 dblp:conf/icas/CollMS08 fatcat:5r36ivuyjbc7hhjwng7d7jl5te

Traffic Engineering through MPLS in Service Provider Networks

Y RamaDevi, B. Ramadasu, B. H. Raj Gopal
2013 International Journal of Computer Applications  
An MPLS domain is the collection of routers running MPLS under the control of a single Administrator.  ...  This ensures that MPLS LSP Traffic engineering is not done haphazardly or at cross purposes but is implemented in a coordinated fashion.  ...  All simulation results in this paper are obtained using NS2 simulator. Figure 2 shows the network created for the simulation.  ... 
doi:10.5120/12535-8916 fatcat:2pgptz6tpbghpgtqhdvdx6bszq

How to Maximize User Satisfaction Degree in Multi-service IP Networks [article]

Huy Nguyen, Tam Van Nguyen, Deokjai Choi
2010 arXiv   pre-print
We also defined a new metric for evaluating network user satisfaction degree: network worth.  ...  With current network moving towards the Future Internet model, the problem is further intensified as network traffic demanding far from exceeds network bandwidth capability.  ...  ACKNOWLEDGMENT This research is the output of the "Research on the Optimal Network Bandwidth Allocation Method for Each Service Class".  ... 
arXiv:1007.1270v1 fatcat:llfzintr55c57men4uhldaqche

Selected papers from the 3rd international workshop on QoS in multiservice IP networks (QoS-IP 2005)

Giuseppe Bianchi, Marco Listanti, Michela Meo, Maurizio M. Munafò
2006 Computer Networks  
The increase in availability of IP/MPLS networks, especially for real-time traffic, is the objective of the algorithms discussed in "A connection oriented network architecture with guaranteed QoS for future  ...  The authors propose a mechanism for bandwidth dimensioning based on a hybrid combination of analytical and simulation models.  ...  An example of this condition is shown in Fig. 1 , which reports some measurements obtained by ns2 (network simulator 2, [31] ) simulations.  ... 
doi:10.1016/j.comnet.2005.09.014 fatcat:5s67orhzgvbyhkt52bo5epf6b4

Congestion due to Rate Variations in cdma2000 Data Networks

Vikas Paliwal, Parsa Larijani, Ioannis Lambadaris, Biswajit Nandy
2006 Wireless personal communications  
In this work, we characterize this problem using an analytical model for losses based on continuous flow approximation as well as an extensive simulation setup.  ...  order to support high data rate requirements and effectively manage the scarce wireless resources, additional bandwidth channels are allocated and taken away from mobile stations in 3G wireless data networks  ...  For the purposes of simulations, we used an implementation of cdma2000's link layer protocol, RLP [4] , in ns2 [21] simulator.  ... 
doi:10.1007/s11277-006-9049-2 fatcat:74xqyxhlybff7bekvozafo3nbu

A QoS Routing Mechanism for Reducing the Routing Inaccuracy Effects [chapter]

Xavier Masip-Bruin, Sergio Sánchez-López, Josep Solé-Pareta, Jordi Dominigo-Pascual
2003 Lecture Notes in Computer Science  
In highly dynamic large IP/MPLS networks, when routing information includes not only topology information but also information to provide QoS, such as available link bandwidth, network state databases  ...  Blocking Simulation Scenario The simulations are performed over the network topology shown in Fig. 3 , borrowed from [5] , using the ns2 simulator extended with MPLS and BBR features.  ...  Conclusions In this paper a new QoS routing mechanism for establishing LSPs in an IP/MPLS network under inaccurate routing information has been suggested and its performance evaluated by simulation in  ... 
doi:10.1007/3-540-36480-3_7 fatcat:mqbrwrvmcbgvrdxj6fe3lsylda

On selection of candidate paths for proportional routing

Srihari Nelakuditi, Zhi-Li Zhang, David H.C. Du
2004 Computer Networks  
It has been shown that best path routing schemes require frequent exchange of network state, imposing both communication overhead on the network and processing overheads on the core routers.  ...  Several QoS routing schemes have been proposed that differ in the way they gather information about the network state and select paths using this information.  ...  These simulations are performed using ns2 [22] . The scripts corresponding to the results presented in this paper can be found in [21].  ... 
doi:10.1016/s1389-1286(03)00346-3 fatcat:mrwdquzafjbo7kz2pkuaiuwk54

Multihoming aware optimization mechanism

Bruno Sousa, Kostas Pentikousis, Marilia Curado
2015 2015 IFIP/IEEE International Symposium on Integrated Network Management (IM)  
The address of a packet is not relevant, what really matters is its content.  ...  ns2, OMNeT++ e multiple f mSCTP √ √ X X Advanced mobility support. No simul- taneous use of paths. - FreeBSD f CMT √ X √ X Load sharing support.  ...  The Multiple Care of Address (MCoA) protocol [Wakikawa et al., 2009] Configuration The current FlatNetworkConfigurator6 module configures the whole simulation as a big subnet.  ... 
doi:10.1109/inm.2015.7140437 dblp:conf/im/SousaPC15 fatcat:mexhxgjbkvd3foptgzuqubwpuq

Adaptive packet video streaming over IP networks: a cross-layer approach

T. Ahmed, A. Mehaoua, R. Boutaba, Y. Iraqi
2005 IEEE Journal on Selected Areas in Communications  
While there is an increasing demand for streaming video applications on IP networks, various network characteristics make the deployment of these applications more challenging than traditional Internet  ...  These applications that transmit audiovisual data over IP must cope with the time varying bandwidth and delay of the network and must be resilient to packet loss and error.  ...  Performance Evaluation System and Network Models Simulations are conduced using the network simulator ns2.  ... 
doi:10.1109/jsac.2004.839425 fatcat:4x2z77kyszf7ncu64stxtfbgii

Analytic Hierarchy Process aided Key Management Schemes Evaluation in Wireless Sensor Network

Na Ruan, Yizhi Ren, Yoshiaki Hori, Kouichi Sakurai
2012 Journal of Networks  
Simulation results show that BDFT can achieve over 99% accuracy on traces of real network traffic. .  ...  Simulation results are presented using both a fluid-based Matlab simulation and an event-driven OPNET simulation.  ...  SIMULATION RESULTS In order to evaluate the performance of the Trust Scheme, the Network Simulator (NS2) version 2.32 with wireless extension is used.  ... 
doi:10.4304/jnw.7.1.88-100 fatcat:7atjgdr7hngvfjvvfibte6d3pm

The mdt algorithm [article]

Pascal Mérindol, Jean-Jacques Pansiot, Stéphane Cateloin
2009 arXiv   pre-print
In this paper, we propose a low time complexity multipath computation algorithm able to calculate at least two paths with a different first hop between all pairs of nodes in the network if such next hops  ...  Simulation results suggest that the path diversity achieved with our proposition is approximatively the same that the one obtained using consecutive Dijsktra computations, but with a lower time complexity  ...  EVALUATION We use the Network Simulator 2 (ns2, [2] ) to compare several routing approaches. ECMP is already implemented within the link state module of ns2.  ... 
arXiv:0904.0217v1 fatcat:bhwg5xtci5gi7dcacnv2u6fruy

Load-sensitive adaptive routing (LSAR) for computer networks

Hao Wang
2003
Finally, the performance of LSAR is tested in simulations. The simulation software used is Network Simulator 2 (ns2).  ...  The result shows that, compared with non-adaptive OSPF/IS-IS routing, LSAR improves the network throughput and reduces the packet drop rate significantly, and does not show unstable behavior under either  ...  is Network Simulator 2 (ns2) [30] [31] , which is a discrete event simulator targeted at networking research and is widely utilized among academic researchers.It is an object oriented open source simulator  ... 
doi:10.14288/1.0091004 fatcat:7hz6plahwbcutddjblszgzpiai

Off the Wall: Lightweight Distributed Filtering to Mitigate Distributed Denial of Service Attacks

Zhang Fu, Marina Papatriantafilou
2012 2012 IEEE 31st Symposium on Reliable Distributed Systems  
It is a challenge to keep a balance between throughput and security/protection of the network core and end resources.  ...  All the simulations are performed in Ns2 [20]; and for each simulation scenario, we run the simulation for 10 times and take the average.  ...  Multiprotocol Label Switching (MPLS). IV. DESIGN DETAILS Bootstrapping connection setup: In SIEVE, the network is divided into N subnets, where N is the number of overlay nodes.  ... 
doi:10.1109/srds.2012.45 dblp:conf/srds/FuP12 fatcat:ix3kgojfwnazllz6wjpmsypbfm

Security and Robustness in the Internet Infrastructure [chapter]

Krishna Kant, Casey Deccio
2012 Handbook on Securing Cyber-Physical Critical Infrastructure  
This chapter does not address misconfigurations related to packet handling rules and policies as those are covered elsewhere in this handbook.  ...  This chapter discusses the issues of network configuration robustness and points out challenges in several areas.  ...  The results were obtained via detailed simulation of BGP using SSFNet [40] and the network topology was generated by BRITE [39] .  ... 
doi:10.1016/b978-0-12-415815-3.00028-5 fatcat:akfmp2qhq5eepcckwy5ip5u36m

TOWARD A GREENER INTERNET - Design and evaluation of green IP and content routing for sustainable communication networks

Seng-Kyoun Jo
2021
We evaluated the proposed approach's performance through simulations of named data networking and green metrics under real topologies and their meteorological data followed by comparing the existing caching  ...  We further investigated the performance impact of energy efficiency compared with the existing green solutions through simulations. Green content routing.  ...  NS2 provides users that can specify such network protocols and simulate their corresponding behaviors. Figure 3 .9 illustrates basic architecture of NS2.  ... 
doi:10.26083/tuprints-00018637 fatcat:lqexzem5vnavlogbgskmbndq3y
« Previous Showing results 1 — 15 out of 26 results