Network Basics (CISCO Network Academy) 10/9

Learning Network

   Theory and Practice
   Catch up the latest technology

Cisco Network Academy

   E-Learning Package (3 million yen for first year, 600,000 yen per year)
   Project Oriented
   Actual management of CISCO Routers
       (too specific for CISCO routers)
   Router's setting is command line driven, not GUI base.

What is LAN, WAN, Internet?

Network and Computer

Internet is combination of LAN and WAN.

More recent technology

Single LAN is a cable, which can broadcast and collide.

Network Devices

1. Point to Point (Cable)
2. Bus Connection (One speaker at a time)
3. Star Connection (Switch Technology)

What makes Network Local?

• Broadcast
• Collision

Broadcast Domain

Collision Domain

OSI 7 Layer

  Please, Do Not Throw Sausage Pizza Away
  Physical, Datalink, Network, Transport, Session, Presentation, Application

   First 3 layers ( Physical, Datalink, Network) are the network.
   Upper 4 layers are software architectures/computer.
    

Physical Layer

   Cable
   Connector

Datalink Layer

   NIC ( Network Interface Circuit)
   Ethernet Packet
   Ethernet Address
   LAN

Network layer

   Internet
   TCP/IP
   Internet Address
   Routing
   WAN

Network Domain

   Local Area Network and Wide Area Network

Repeater

Switch, Bridge

Router

Physical Layer and Cabling

   Category 5 cable

Network Design

Hosts and Networks

Content

1. Learning Network
2. Cisco Network Academy
3. What is LAN, WAN, Internet?
4. More recent technology
5. Network Devices
6. What makes Network Local?
7. Broadcast Domain
8. Collision Domain
9. OSI 7 Layer
10. Physical Layer
11. Datalink Layer
12. Network layer
13. Network Domain
14. Repeater
15. Switch, Bridge
16. Router
17. Physical Layer and Cabling
18. Network Design