Class 2 Agenda

1
Class 2 Agenda

• Networking Basics
• Nestle Case
• Text Chapter Review

2
Networking Concepts

• Network Layered Architecture
• TCP/IP
• Addressing
• IP Address format
• DHCP
• DNS
• Routing/Switching
• Network Address Translation (NAT)

3
Network Layered Architecture
Client
Server
Presentation
Application
Session
Transport
Network
Data Link
Physical
ISO Standard Layers
4
TCP/IP Layers
Client
Server
Presentation
smtp, http
TCP
IP (packets)
IP (routing)
Ethernet
Fiber, etc
TCP/IP Layers and wrappers
5
TCP/IP
TCP
TCP
Manager
IP
Worker
6
TCP/IP Addressing

• Address format
• Server
• Port
• Class Licenses/subnets
• Network Address Translation (NAT)
• Allows extra local addresses
• Limits direct internet access

7
IP Address Format
012 . 123 . 234 . 001 2000
Class A
Port
Class B
Class C
8
Leasing IP Addresses DHCP
Campus Backbone
Request for IP Address
PC
DHCP Server
Leased IP Address
9
Addressing/DNS
Higher DNS Server
DNS Server
Client
Client
Router
10
Routing
Internet
IP Directory rules
Router
Campus Backbone
Router
Router
LAN
LAN
11
Network Address Translation
Internet
IP Directory rules
Router
Campus Backbone
NAT Table 1.2.3.4 12.13.14.15
Router
Router
Client 1.2.3.4
LAN
12
Break / Project Teams
13
Nestle Case

• Effect of Nestle being built by acquisition on
  the acceptance of SAP standard?
• All 5 modules across all divisions at once pros
  and cons?
• User buy-in encouraging it and measuring it?
• (Use the development principles we studied on
  earlier!!)

14
Text Chapter Primer

• Syntax/Terminology questions?
• Student discussion points
• Issues supporting multiple types of servers/OSs?
• ERP implementation management issues?
• Best of breed vs 1-Vendor issues