Session 1 Tp 1

Microsoft Windows Server 2003 Network Infrastructure – Planning and Maintenance/ Session 1 / Slide 1 of 21

Session 1

Planning a Network Service

Infrastructure


Objectives Explain Network Services

Infrastructure design Identify the protocols for the

Network Infrastructure design Identify the Data-Link layer protocol Discuss the Networking services Analyze the Organizational goals


Network Infrastructure Network Infrastructure consists of:

Physical infrastructure: Provides the basic design of the network

Logical infrastructure: Consists of the software elements that connect, maintain, and provide security to the hosts on the network


Network Services Infrastructure Stages

Steps in designing a Network Services Infrastructure are: Plan Implement Maintain

Networking Services Infrastructure

Implement

Plan

Maintain


Selecting the Protocols for the Network

The Open Systems Interconnection (OSI) reference model defines a networking framework for implementing protocols such as TCP/IP and Ethernet


Selecting the Protocols for the Network Contd…

Physical layer (layer 1) – Specifies the signals transmitted over the network

Data-Link layer (layer 2) – Furnishes transmission protocol knowledge, management and handles errors in the Physical layer

Network layer (layer 3) – Defines the functions that provide communication between computers on different networks


Selecting the Protocols for the Network Contd…

Transport layer (layer 4) – Guarantees data delivery and ensures error detection

Session layer (layer 5) – Establishes, maintains and ceases connections between applications

Presentation layer (layer 6) – Translates the computer syntax into a readable format

Application layer (layer 7) – Supports application and end-user processes


Data-Link Layer Protocol We must consider the following criteria

while selecting the Data-Link layer protocol: Type of Media Transmission speed

The most widely used Data-Link layer protocol is the Ethernet


Types of Media Local Area Networks

are developed using: Unshielded Twisted

Pair (UTP) Transmission Media

Fiber Optic Wireless

Networking


Transport Layer Protocol Windows Server 2003 supports three

transport layer protocols such as: Transmission Control

Protocol/Internet Protocol (TCP/IP) Internetwork Packet Exchange

(IPX) NetBEUI


TCP/IP Communicates using the IP (Internet

Protocol), TCP (Transmission Control Protocol) and UDP (User Datagram Protocol) protocols


IPX Communicates using the following

protocols: Sequenced Packet Exchange

(SPX) – Connection-oriented transport layer protocol

NetWare Core Protocol (NCP) – Equivalent of UDP


NetBEUI Uses the NetBIOS namespace to

identify computers on the network We can install the NetBEUI on

Windows Server 2003 computer using the installation files to check network communication problems.


Selecting Networking Services

The network design process involves: Network Foundation Internet Connectivity Integrated Design for

Networking Services Infrastructure

Remote Access Connectivity


Network Foundation Enables the IP addressing

support, automatic client configuration, and services for name resolution

The networking services are: TCP/IP DHCP DNS WINS


Internet Connectivity Enables remote users

to access the internal network through the internet without any risk.

The Networking services are: NAT Microsoft Proxy

Server


Connectivity for Remote Access

While designing the Network services infrastructure, we must use the routing services to connect multiple physical segments placed in the same geographical locations


Infrastructure design We must provide the required

networking solution to the organization through: Management Strategy Design Combination of services Organizational Network solution


Analyzing Organizational Goals

While designing the network services infrastructure we must take the following points into consideration: Functionality Security Availability Performance


Summary Network Services Infrastructure design depends

on the execution of three phases: Plan Implement Maintain

The design process involves: Network Foundation Internet Connectivity Remote Access Connectivity Infrastructure design


Summary Contd… A Network Infrastructure is made up of the Physical and

the Logical infrastructure The Open Systems Interconnection (OSI) reference

model defines a networking framework for implementing protocols

The Data-Link layer protocol is one of the main decisions to be taken while designing the network infrastructure

Common network services include TCP/IP, DHCP, DNS, and WINS

Remote Access Connectivity can be achieved through IP Routing, Routing and Remote Access, and RADIUS

Session 1 Tp 1

Technology

Transcript of Session 1 Tp 1