|
|
||
|
OPNET Technologies © 2008 OPNET Technologies, Inc.
|
Teaching with OPNET: CSc 6220 is a graduate course in Computer Networks taught by Dr. X. Cao. The course requires graduate students to use OPNET to model different kinds of networks ( packet switched, Circuit switched ) and compare the performance of the networks. CSc8220 is a advanced graduate course which encourages
students to work on a major project involving wide areas in present day
networking like, wireless based, TCP/IP based, WDM networks, Mobile Networks
etc. Students are encouraged to implement the projects with simulation
generally using OPNET. Research with OPNET: A Design of Multi-granular Switching Framework
for Optical Networks To meet the huge bandwidth demand from the increasing Internet traffic and the volume of Internet applications, optical network using wavelength-division multiplexing (WDM) technology, which divides the enormous fiber bandwidth into a large number of wavelengths, is considered as the foremost solution. However, as the number of wavelength per fiber increases and fiber deployment becomes ubiquitous in the backbone core and metropolitan networks, the ability to manage traffic in a fiber network is becoming increasingly critical and complicated. In particular, the rapid advance in WDM technology and world-wide fiber deployment has brought about a tremendous increase in the size (i.e. number of ports) of optical switching node, which is called photonic cross-connects. This has also driven up the cost, complexity and difficulty associated with controlling and managing of such large cross-connects. Despite the remarkable technological advances in building photonic cross-connect systems and associated switch fabrics, the high cost and unproven reliability of huge switches have not justified their deployment. In this project, we are investigating techniques and applications of multi-granular optical switching. The goal is to improve the network performance, reduce the cost and complexity of the existing approaches while supporting a variety of traffic patterns. The main idea is to group several wavelengths together as a band, and switch the band as a single entity (i.e., using a single port) whenever possible. The research focusses on developing algorithms for mapping traffic onto WDM network topologies so as to minimize cost (according to a pre-defined cost model ), maximize throughput or minimize resources (ports, cross-connects, fiber etc. ). The algorithms are modeled and simulated using OPNET, where OPNET serves the purpose of generating random topologies, providing IP functionality over fiber optic WDM networks.
OPNET Technologies, Inc. is a leading provider of solutions for managing networks and applications. OPNET's best-in-class solutions address application troubleshooting, application monitoring, network monitoring, network configuration management, network planning , and network simulation. OPNET’s solutions have been operationally proven in thousands of customer environments worldwide, including corporate and government enterprises, government and defense agencies, network service providers, and network equipment manufacturers. For more information about OPNET and its products, visit www.opnet.com. |
