No description available.

No description available.

Recently, simulation has became the most effective way for analyzing and perfecting the performance of telecommunication networks. It has proven itself as the best method in the realm of education, where the hardware capabilities for practical training are often limited. A simulated network enables students to practice hands-on network programming and to understand, in a practical way, how a data communication network operates and how protocols work.Metanet is an environment that enables the programmer to write networking applications and to test them as if using an IP network with the hosts connected through Ethernet. The whole software is a multi-process application that makes use of just the resources offered by a single machine. It runs on a UNIX system and emulates hosts that also communicate through an emulated network using TCP/IP. Each layer of the hosts' operating system is designed as a separate process that will communicate with the adjacent layers using socket pairs or UDP connections. The application layer has multi-processing capability. / Department of Computer Science

Software emulation of local area and wide area networks provides an alternative method for the design of such networks and for analyzing their performance. Emulation of bridges and routers that link networks together may provide valuable information regarding network congestion, network storms and the like before putting expensive hardware into place. Such an emulation also enables students taking a networking course to develop their own client-server applications and to visualize the basic functioning of the UDP/IP and RIP protocols.This thesis builds on the emulated local area network, Metanet, created by a previous graduate student. It adds the capability of attaching routers and bridges to multiple local and non-local emulated networks so that data may be transferred between two hosts on different segments of the same LAN (via an emulated bridge) or two different networks altogether (via an emulated router). The machines running the Metanet software should support UNIX which has Berkeley's Socket interface as emulated networks on different physical machines utilize this interface for communicating. A comparison of the new networking capabilities of Metanet and other experimental systems like XINU and MINIX is researched. / Department of Computer Science

No description available.

A Hybrid Meshnet LAN, a new local area network architecture, has been proposed by Dr. Cheoul-Shin Kang and Dr. James Herzog. It provides for distributed control hybrid architecture which is good for effective load sharing under various local area network environments. Hybrid Meshnet has a dual channel structure, a token ring and a collection of full-duplex data links. The multiple high-speed transmissions, private and secure communications and large volume of data transmission capability are some of the features of Hybrid Meshnet. The design features necessary to implement the network interface unit (NIU) for the Hybrid Meshnet are presented. The unit is a multiprocessor system with each processor having a RISC-like architecture. Various asynchronous activities are distributed among the three processors resulting in a balanced network interface unit. Except for the time critical and non-varying functions, all the functionalities of the unit are programmable. The hybrid meshnet protocol is still in the development stage. The programmable unit will accommodate the changes in the protocol. The network interface unit will be compatible with most of the host computer systems. The study is one step forward in the direction of Hybrid Meshnet Local Area Network's implementation. / Graduation date: 1993

Thesis (Ph. D.)--Ohio University, June, 1996. / Title from PDF t.p.

Thesis (M.S.)--Rochester Institute of Technology, 1992. / Typescript. Includes bibliographical references and index.

Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1991. / Vita. Abstract. Includes bibliographical references (leaves 119-123). Also available via the Internet.

Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1992. / Vita. Abstract. Includes bibliographical references (leaf 66). Also available via the Internet.