Intro net 91407

Introduction to Networking ,[object Object],[object Object],[object Object]

Goals of class ,[object Object],[object Object],This class is reduced from a 9-hour class to a 90-minute class. The old, outdated, 9-hour presentation can be found at https://www.stanford.edu/group/networking/NetConsult/IntroNet/

Not Goals of Class ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

What is a “Network”? ,[object Object],[object Object]

Computer Networking Models ,[object Object],OSI 7-layer model DOD 3-layer model Simplified 4/5-layer model Protocol Transport Network 1 2 3 4 5 6 7 OSI (Open Systems Interconnection) mnemonic: All People Seem To Need Data Processing. If you ever take a test on networking, you’ll have to now this, otherwise, use the simplified model. Application Presentation Session Transport Network Data Physical Application Local Network (LAN) Data Physical Application

Protocol Concepts ,[object Object],[object Object],[object Object],[object Object],[object Object]

Physical Layer (Layer 1) ,[object Object],[object Object]

Twisted Pair (Cat 5/5e, Cat 6) ,[object Object],[object Object],[object Object],[object Object],[object Object]

Twisted Pair (continued) ,[object Object],[object Object],1 2 3 4 5 6 7 8 Strands: Pairs: 1 (blue) 2 (orange) 3 (green) 4 (brown) 10BaseT and 100BaseT only use pairs 2 and 3, so you may see some cables with only 4 strands, but since 1000T (gigabit) uses all pairs, don’t keep those cables. 568B:

Physical: Wireless ,[object Object],[object Object],[object Object],[object Object]

Data Layer (Layer 2) ,[object Object],[object Object],[object Object]

Data Layer: Ethernet ,[object Object],[object Object],[object Object]

Ethernet: Addressing ,[object Object],[object Object],[object Object],[object Object]

Ethernet: Finding your Address(es) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Ethernet addresses: now what? ,[object Object],[object Object],[object Object],[object Object]

Hubs vs. Switches ,[object Object],[object Object]

Network Layer (Layer 3) ,[object Object],[object Object],[object Object]

Network Layer: IP ,[object Object],[object Object],[object Object],[object Object]

IP Addressing ,[object Object],[object Object],[object Object],[object Object]

IP: Domain Name Resolution (DNS) ,[object Object],[object Object],[object Object]

DNS Servers ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

IP: Routing. “How do you get there from here?” ,[object Object],[object Object],[object Object],[object Object]

More routing. ,[object Object],[object Object],[object Object]

Who’s my router? ,[object Object],[object Object],[object Object],[object Object]

It really can’t be a networking class without ping and traceroute ,[object Object],[object Object],[object Object]

Review. ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Resources ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Intro net 91407

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Intro net 91407

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