Network Configurartion

Week 2

Identify a peer-to-peer network. Identify a server-based network. Identify server functions and assign

specialized servers as needed. Determine which types of network is

appropriate for a site. Identify the four standard topologies and

ther variations. Determine an appropriate topology for a

given network plan.

Objectives

Networks components, functions, and features these include:

Servers – computers that provide shared resources to network users.

Clients – Computers that access shared network resources provided by a server.

Media – the wires that make the physical connections.

Shared data – files provided to clients by servers across the network.

Network Configuration Overview

Shared printers and other peripherals – additional resources provided by servers.

Resources – any service or device, such as files, printers, or other items, made available for use by members of the network.

Network Configuration Overview

Peer-to-peer networks Server-based networks

Networks categories

Size of the organization Level of security required Type of business Level of administration support available Needs of the network users. Network budget

Type of network implementation

Describe the advantages of peer-to-peer network

Describe the advantages of server-based network

Assignment

Peer-to-Peer Networks

There are no dedicated servers All computer are equal and both a client

and a server There is no administrator responsible for the

entire network. The user at each computer determines what

data on that computer.

Peer-to-Peer Networks

SIZE◦ Peer-to-peer are also called workgroups or small

group of people.◦ There are typically 10 or fewer computers.

COST◦ There is no need for a powerful central server or

for the other components required for a high-capacity network

◦ Peer-to-peer networks can be less expensive than server-based networks.

Peer-to-Peer Networks

Computers are located at user’s desks. Users act as their own administrators and

plan their own security. Computers in the network are connected by

a simple, easily visible cabling system.

Advantages

The are 10 users or fewer. Users share resources, such as files and

printers, but not specialized servers exist. Security is not an issue. The organization and the network will

experience only limited growth within the foreseeable future.

Environment

Managing users and security. Making resources available. Maintaining applications and data Installing and upgrading application and OS.

Network Administration tasks

Making computers and data stored on them safe from harm or unauthorized access consists of setting a password on a resource, such as directory, that is shared on the network.

Security

Server-Based Networks

A server-based network can support thousand of users.

A dedicated server is one that functions only as a server and is not used as a client or workstation.

Servers perform varied and complex tasks. Server specialized to accommodate the expanding

needs Server backups can be scheduled to occur

automatically, according to a predetermined schedule.

Client do not need the additional RAM and disk storage needed to provide server services.

Server-Based Networks

File and Print Servers Application Servers Mail Server Fax Server Communication Servers Directory Services Servers

Network Administration tasks

Topology. Refers to the arrangement or physical layout of computers, cables, and other components on the network.

“Topology” is the standard term that most network professionals use when they refer to the network’s basic design.

Network Topology

Several terms used to defined a network’s design:◦ Physical layout◦ Design◦ Diagram◦ Map

Network topology

Organization responsible for publishing and/or regulating standards◦ International organizations:o ITU – International Telecommunications Uniono ISO – International Organization for

Standardizationo IEEE – Institute of Electrical and Electronics

Engineers

Standard bodies

◦ Regional organizations:oANSI – American National Standards InstituteoETSI – European Telecommunications Standards

Institute.

Standard bodies

Professional association of Electrical and Electronics Engineers with almost half-a-million individual members in 150 countries

Promotes the engineering process of creating, developing, integrating, sharing, and applying knowledge about electro and information technologies and sciences in the areas of:

Computer Engineering Telecommunications Consumer Electronics

Institute of Electrical and Electronics Engineers

Global organization based in Geneva tasked to oversee standards specification for telecommunication technologies.

ITU-T. Telecommunications Standardization Sector

ITU-R. Radio Communication Sector ITU-D. Development Sector

International Telecommunications Union

Non-governmental organization to promote standardization and its developments

World-wide alliance of national standards bodies from around 130 countries

Not solely for technical standards as it also looks into standards in the areas of: Intellectual Scientific Technological Economic

International Organization for Standardization

Bodies responsible for the oversight of standards issues include matters of technical, procedural, policy and the enabling technologies.

Internet Architecture Board Internet Research Task Force Internet Assigned Number Authority Internet Engineering Task Force

Internet Standards Organizations

Main responsibilities are to oversee the standards published in the Internet and how the process of arriving at a standard is done.

Internet Engineering Task Force

Internet Architecture Board

Responsible for the management, operation and evolution of the various technologies used in the Internet.

Responsible for organizing efforts in doing research for Internet technologies that includes Internet protocols and applications

Internet Assigned Number Authority

Internet Research Task Force

Its role is to hold the inventory of all assigned numbers in the Internet:

Serves as the registry for the whole of the Internet, hence providing registration services.

End-user can freely choose on what devices and/or solutions manufacturers provide without worrying about compatibility.

Collaborative efforts among vendors results to the best solution possible.

Competition brings down product cost Ensure safety

Reasons for Standardization

List three factors that can influence the choice of whether to implement a peer-to-peer or server-based network configuration.

Describe the advantages of a peer-to-peer network.

Describe the advantages of a server-based network

Describe the standardization of networking.

Seatwork: ½ yellow paper 30 minutes