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OPNET Technologies OPNET is a registered
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University: Enginyeria i Arquitectura La Salle - Universitat Ramon Llull Research Papers:“Distributed Algorithm for ATM VP’s Based Virtual Networks Reconfiguration” Authors: Miquel Nicolau, Jaume Abella, Guiomar Corral, Ferran Garcia “Distributed Algorithm for the Layout of VP-based ATM Networks” Authors: Jaume Abella, Guiomar Corral, Miquel Nicolau “Prediction and control of short-term congestion in ATM Networks using Artificial Intelligence techniques” Authors: Guiomar Corral, Agustín Zaballos, Joan Camps, Josep M. Garrell “Congestion control in ATM Networks using Artificial Intelligence techniques” Authors: Guiomar Corral, Agustín Zaballos, Joan Camps, Josep M. Garrell “Simulation-based study of TCP flow control mechanisms using OPNET Modeler” Authors: Guiomar Corral, Agustín Zaballos, Tomas Fulgueira, Jaume Abella “Modeling La Salle University’s network using OPNET Modeler” Authors: Agustin Zaballos, Guiomar Corral, Tomas Fulgueira, Jaume Abella “Testing Network Security Using OPNET” Authors: Agustin Zaballos, Guiomar Corral, Isard Serra, Jaume Abella “Modeling new indoor and outdoor propagation models for WLAN” Authors: Agustin Zaballos, Guiomar Corral, Albert Carné, Joan Lluís Pijoan “Proposal of new challenge labs for the OPNET IT Guru Academic Edition” Authors: Agustin Zaballos, Guiomar Corral, Cesc Canet Authors: Guiomar Corral, Agustin Zaballos, Jaume Abella, Carlos Morales “Developing a QoS 802.11e model in a Wireless environment” Authors: Agustin Zaballos, Guiomar Corral, Josep Maria Selga, Carlos Solé “AdHoc routing performance study using OPNET Modeler” Authors: Agustin Zaballos, Alex Vallejo, Guiomar Corral, Jaume Abella “Analytical model validation using OPNET Modeler” Authors: Josep Maria Selga, Agustin Zaballos, Xavier Cadenas, Joan Ruiz “Modelling and analyzing different MAC layers over PLC” Authors: Guillermo J. Ravera Iglesias “Analysis and simulation of IGP Routing Protocols” Authors: Agustin Zaballos, Carles Seguí “Modeling and Analyzing the Star of Chains Topology for WSN” Authors: Agustín Zaballos, Alex Vallejo, Joan Vives and Jaume Abella Research Projects:1999: ATYCA PROJECT: ADAPTATIVE RECONFIGURATION OF VIRTUAL ATM NETWORKS - Enginyeria i Arquitectura La Salle & DIMAT Author: GARCIA PAGANS, FERRAN “VIRTUAL VP BASED NETWORKS CONFIGURATION ALGORITHM”: Analysis of several methodologies for bandwith management in ATM networks. Implementation of a new distributed management system based on economic algorithms and in the VPs used. Application of the new algorithm using OPNET's software. 2000: RESEARCH PROJECT CICYT PROJECT: Study and implementation of an artificial intelligence tool applied to open remote teaching platforms and to ATM networks which support them. (TEL98-0408-C02-02) Author: ZABALLOS DIEGO, JUAN A. “PREVENTIVE ALGORITHMS FOR THE CONTROL OF SHORT-TERM CONGESTION SITUATIONS IN ATM NETWORKS”: Study of ATM networks congestion and the ways to minimize its effects. Implementation of a new UPC algorithm based on artificial intelligence techniques applied to a partial buffer sharing priority control. Implementation of an ATM node in OPNET using this UPC algorithm. “STUDY AND SIMULATION OF THE ETHERNET PROTOCOL AND LATTER REVISIONS” Author: DEL AMO, RODRIGO Description: Wide review of all ethernet models included in OPNET and OSI's data link layer protocols low-level analysis. Implementation of several ethernet scenarios and classical ethernet's features verification. “TCP AND THE TCP WINDOW” Author: FULGUEIRA MAYANS, TOMAS Description: Study of TCP protocol, its options and new implementations. Performance analysis for several TCP versions relating to the TCP window using OPNET Modeler. Implementation of a new TCP flavour in OPNET in order to improve existing versions. 2002:“Comnet to OPNET migration” Author: VELASCO FERNANDEZ, JOSE MIGUEL Description: Method to migrate COMNET network models to OPNET network models. This project provides a method to transform COMNET parameters to OPNET model attributes. 2003:“MODELING OF THE NETWORK USED IN "ARQUITECTURA I ENGINYERIA LA SALLE" USING IT-GURU” Author: FULGUEIRA MAYANS, TOMAS Description: This project presents the modelling of La Salle University's Campus network in Barcelona (Spain). This model is based on different networking technologies, like switched Ethernet, ATM, LANE, VLAN and Wireless LAN. This model has made us capable of studying network behaviour and has made possible some performance problems detection. Several improvements have been proposed and future changes have been evaluated. The main goal is to produce a network model as similar as possible to the university network, using OPNET modeler to study its efficiency, performance, and behaviour. There were also considered future improvements. Several changes in OPNET models have been performed in order to adapt the model to real equipment and configurations. “MULTIPROTOCOL LABEL SWITCHING MODELING” Author: SOLE AGUILAR, CARLOS Description: This project finds out the capabilities of MPLS OPNET 8.0's model. Some test-bed was modelled to make a lab which provides a better understanding of MPLS technology to students. More complex scenarios were implemented (MPLS with QoS, MPLS recovery, Dynamic LSP setups). “TESTING NETWORK SECURITY USING OPNET” Author: SERRA BALAGUE, ISARD Description: Nowadays, network security has become a major priority for both network design and implementation. Due to this fact, the interest in making network communications secure has increased at the same rate as the accessibility to Internet services. Although security is a critical issue in e-business, it is often impossible to measure its effectiveness in real life because of the network administrators' fears or prejudices. In order to find a solution to this particular issue, once more, simulation opens the path to solving problems that are hard to fix in real life. “SIMULATION-BASED ANALYSIS OF VPN TECHNOLOGIES” Author: MATUTES MESTRE, MANUEL Description: Traditionally, organizations have designed their VPN networks using layer 2 WANs that provide emulated leased lines. In the last years, a great variety of VPN technologies have appeared, making more difficult to match the best technology for each organization. In the actual scene, service providers are trying that costumers outsource their VPN in order to efficiently manage their networks. In this paper, there is a simulation-based analysis of the four main VPN technologies used nowadays: Frame Relay, ATM, IP-Tunneling (GRE, IPSec) across public Internet, and private IP-MPLS network. In this analysis, a general scenario has been defined. In this scenario, an organization has to interconnect four remote offices with the central building and its servers. The organization has also four remote workers who need access to the corporative intranet. The user profile includes all kind of applications: Web, FTP, E-mail and Database access. A scenario has been created for each technology; then, the network performance has been evaluated from the point of view of efficiency, scalability, QoS and economic cost. The simulation analysis will show the best option for each scenario. “SIMULATION OF QoS OVER MPLS” Author: MARCO MARTORELL, NURIA Description: This project analyses QoS configurations to improve the performance of a MPLS Network. Concepts like CAR, RED, WFQ, DSCP and RSVP are Simulation-based analysed. “INDOOR WIRELESS SIMULATION” Author: CARNE TOMAS, ALBERT Description: This project provides some workstations models to simulate indoor wireless, which came with an attribute to configure the type of walls that there are between the workstation and the access point. This attribute is used to modify the radio pipeline stage. “BUILDING AN IDS USING OPNET” Author: MORALES TEJEDA, CARLOS Description: This project implements an IDS for OPNET Modeler. It is also focused on the study of different network intrusions in a simulated environment and its use in real networks. “DEVELOPING A QoS 802.11e MODEL IN A WIRELESS ENVIRONMENT” Author: SOLÉ AGUILAR, CARLOS Description: Study of the 802.11 and 802.11e technologies and creation of a 802.11e model for OPNET Modeler, implementing the EDCF backoff procedure to perform traffic differentiation. “ROUTING ANALYSIS IN AD-HOC NETWORKS” Author: BOUZAS ARAGÓN, SANTIAGO Description: Since users in an Ad-hoc network are mobile users, network topology can change frequently and more than one network hop may be necessary to permit nodes communicate. This project studies routing protocols performance in different Ad-Hoc scenarios. “NETWORK CAPACITY PLANNING OPNET TOOLS PRACTICE EVALUATION” Author: MERAYO PASTOR, IRENE Description: The importance of detecting inefficiencies and problems on a network has increased. This project is focused on the use of ACE, Flow Analysis and NetDoctor modules as a tool for detecting this problems, and on a study of its performance and efficiency on different situations. “ANALYSIS OF MPLS-TE WITH OPNET” Author: LLEIXÀ RILLO, XAVIER Description: MPLS-TE combines ATM Traffic Engineering with IP flexibility and class-of-service differentiation. The goal of this project is to study the consequences of applying MPLS-TE in a large network, over a sort of protocols like OSPF and ISIS, and analyzing QoS improvements and limitations. Current Research Projects:PLC: This project will present an analytical model of polling in multihop electrical Automated Meter Reading (AMR) systems, based on a Markov Chain. IPv6 Development (Task Force): Enginyeria i Arquitectura La Salle University is developing different studies related to the IPv6 standard within CTTC’s projects(EU IPv6 Cluster). La Salle University is deploying research lines focused on different topics: Migration of IPv4 to IPv6, Integration of IPv6 in new technologies(Wireless LANs, ToIP, etc.), Routing in IPv6(Nimrod, PNNI,BGP-4, RIPng, IS-IS, OSPF), QoS in IPv6 (features, improvements, protocols and standards), Ipv6 new security models(centralized vs. decentralized), Ipv6 security deployment & migration strategies, Artificial Intelligence in Ipv6 networks. Co-Simulation : Enginyeria i Arquitectura La Salle is developing a project focused on Co-Simulation and Opnet integration with other tools. This activity is going to find out the capabilities of interfacing OPNET Simulator with other simulators and hardware devices using the Co-Simulation API. MPLS Diff-Serv: The traditional best-effort model of the Internet makes no attempt to differentiate between the traffic flows that are generated by different hosts. As traffic flow varies, the network provides the best service it can; but there are no controls to preserve higher levels of service for some flows and not others. What Diff-Serv does is attempt to provide better levels of service in a best-effort environment. Routing: This project will provide an overview of the evolution of routing protocols, focusing on unicast distributed routing algorithms. Shortest path routing and optimal routing will be studied, implementing an improved version of OSPF using OPNET Modeler. Teaching:LABORATORY OF NETWORKING (51 STUDENTS) Labs of OPNET MODELER Functionalities, MPLS, ATM and ACE MASTERS (50 STUDENTS) Introduction OPNET MODELER Labs PRACTICES FOR "TELEMATICS II" STUDENTS (250 STUDENTS) Introduction OPNET MODELER Labs |
