IRLSim: a general purpose packet level network simulator

ITRE 2005. 3rd International Conference on Information Technology: Research and Education, 2005., 2005

Abstrmt-In this paper, we describe our software tool(IPv6Suite) which is capable of simulating IPv6 networks accurately. The IPv6 network components are modeled in detail with important functionalities closely following the relevant protocol standard. The OMNeT++ simulation environment is used, providing a generic and flexible architecture with a strong Graphical User Interface(GUI) support. This allowed the construction of a comprehensive IPv6 model, which is customizable and easy to use. IPvLSuite is a powerful tool €or learning and researching IPv6 networks and protocotS.

WSEAS Transactions …, 2003

2014

— Due to growth of computer networks and complex scenarios the role of Network simulators in research field cannot be ignored. Simulators are useful tools when one wants to consider time and resources, implementation of new security solutions, performance estimation etc. it provides a virtual environment for an assortment of desirable features such as modeling a network based on a specific criteria and analyzing its performance under different scenarios. The newly proposed network simulator NS-3 supports coupling, interoperability, good memory management, debugging of split language objects, coding in C++ and object oriented concepts, as well as supports models supported by NS-2 and most suitable for wireless networks. The primary purpose of this paper is to compare and review this new simulator, as well as find its advantages in the field of research and how it is different from others. We also discuss the current demand of industry as well proposed a framework for a simulator whic...

Simulation of network is a very complex task. Network simulation is a modern technique used to analyze the behavior of the network. Simulation method analyzes the behavior of large, complex and highly volatile system. Network simulator software predicts the behavior of a network. It allows the designer to test new networking protocol and change the existing protocol. Through network simulator a program controls the behavior of the network by calculating the interactions of different network entities using various mathematical formulae. The behavior of the network and the various applications and services it supports can then be observed in a test lab. Under different conditions the attributes of the environment can be modified in a controlled manner to assess how the network would behave. In simulators, the computer network is typically modeled with devices, links, applications, etc. and the performance is then analyzed. Simulators usually support the most popular protocols and netw...

2008

Abstract In the network research area, it is very costly to deploy a complete test bed containing multiple networked computers, routers and data links to validate and verify a certain network protocol or a specific network algorithm. The network simulators in these circumstances save a lot of money and time in accomplishing this task. Network simulators are also particularly useful in allowing the network designers to test new networking protocols or to change the existing protocols in a controlled and reproducible manner.

1999

Internet technology as a widely accepted modern telecommunication standard has beenwidely extended to combine with numerous other technologies, e.g., satellite, ATM, wireless. This is what we t e r m a s H y b r i d Internet. Along with this technology emerging, various enhancements and alterations of standard TCP IP for di erent purposes have beenproposed and studied intensively. More and more frequently we are facing the question of how t o choose from these di erent s c hemes to design a system for a particular purpose, which w ould inevitably involve the interaction and trade-o study. We believe that simulation is a powerful tool for this type of work. In this paper, we describe our implementation of a Hybrid Internet testbed which includes a series of tra c models and TCP IP enhancements. The goal of our work is to make a set of reusable modules upon which w e can build complex systems to study the standard protocols and their variations. We also present application examples using these module components.

In the network area, to establish a network in real time for any experiment is very difficult. To test a simple problem takes a large amount of time and cost. So it is not quite possible to implement the whole network scenario in a real time. There are many tools which helps network developer to test their network scenarios virtually whether the network is able to work in real time environment. The network simulators are used for performance analysis in the field of communication. With the help of these simulation tools both the time and cost of testing the functionality of network have been reduced and implementations are made easy. In this paper, we briefly discuss the main features of different simulators, new developments and also discuss their advantages and disadvantages in the field of network simulation. We hope that the people who face difficulty in selecting a proper suitable network simulation tool in their research this paper is helpful for them.

1999

In recent years, the Internet has grown significantly in size and scope, and as a result new protocols and al-gorithms are being developed to meet changing opera-tional requirements in the Internet. Examples of such requirements include quality of service support, multi-cast ...

Proceedings of the 19th ACM International Symposium on QoS and Security for Wireless and Mobile Networks

Network simulators have been widely used to test and benchmark communication networks, their protocols and services. While new simulators have been developed to account for new technologies and standards, adapting and developing existing, popular network simulators to cope with the everincreasing number and diversity of distributed applications is considerably more challenging. To fill this gap, this paper introduces the Network Simulation Bridge, or NSB for short, a simple, low-overhead pipeline consisting of a message server and client interface libraries that bridge together applications and network simulators. NSB is application-, network simulator-, and platform-agnostic and uses a "plug-and-play" approach which allows it to integrate any application frontend with any network simulator back-end. We showcase NSB by using it to integrate two different distributed applications with the OMNeT++ network simulator. Our performance evaluation confirms that NSB incurs relatively low overhead and exhibits adequate scalability. We open-source the NSB pipeline and its APIs through a publicly available repository.

When developing new network protocols, new functionalities of network devices, new traffic models and other novelties, we face the problem of non-existing tools. If we want to simulate the behavior of the network with a newly developed feature we have to develop a new simulator or add a new functionality to an existing simulation tool. Both options can be quite complex and/or time consuming. To facilitate the testing and simulation of a new packet scheduler that we developed during our research we have developed a simulator for a general model of a network device. For this purpose we have used the Modular Simulation language, MODSIM III. It is a general-purpose, modular, block structured language that provides support for object-oriented programming, discrete event simulation and animated graphics. The simulator includes modules for the most important elements and functions of a packet network device, modules for collection of results, and modules for writing the results into a standard format files. We have tested and validated the operation of the simulator with analytically verifiable settings. The simulation and analytical results were practically the same. Encouraged with that we have then simulated newly developed packet schedulers and network device functionalities. Some of the simulation results are presented in this article, more you can find in corresponding references.