Class 2 Agenda Networking Basics Networking Basics Nestle Case Nestle Case Text Chapter Review Text Chapter Review

Networking Concepts Network Layered Architecture Network Layered Architecture TCP/IP TCP/IP Addressing Addressing –IP Address format –DHCP –DNS Routing/Switching Routing/Switching Network Address Translation (“NAT”) Network Address Translation (“NAT”)

Network Layered Architecture Presentation Application Physical Data Link Session Network Transport “ISO” Standard Layers ClientServer

TCP/IP Layers Presentation smtp, http… Fiber, etc Ethernet TCP IP (routing) IP (packets) TCP/IP Layers and “wrappers” ClientServer

TCP/IP TCP IP “Manager” “Worker”

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

IP Address Format : 2000 Class B Class A Port # Class C

Leasing IP Addresses: DHCP Campus Backbone PC DHCP Server Request for IP Address Leased IP Address

Addressing/DNS Client DNS Server Router Client Higher DNS Server

Routing Router Internet Campus Backbone LAN IP Directory & rules

Network Address Translation Router Internet Campus Backbone Client LAN IP Directory & rules NAT Table: =

Break / Project Teams

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

Text Chapter “Primer” Syntax/Terminology questions? Syntax/Terminology questions? Student discussion points Student discussion points –Issues supporting multiple types of servers/OS’s? –ERP implementation management issues? –“Best of breed” vs 1-Vendor issues