1. Network Seminar
Class 1
21-1 Ji Hyeon Byeon
http://qkrdbwjd24.blog.me
http://www.facebook.com/jihyeon.byeon
Samsung Software Membership

2. OSI 7 Layer

3. OSI 7 Layer
Stack Connections
Application Application
Transport Transport
Network Network Network Network
Data Link Data Link Data Link Data Link

4. OSI 7 Layer
Data Encapsulation

5. OSI 7 Layer
Physical Layer
- Coaxial Cable
10 ~ 100 Mbps
Maximum cable length : 500m
- STP(Shield Twisted Pair) Cable
10 ~ 100 Mbps
Maximum cable length : 100m
- UTP(Unshield Twisted Pair) Cable
10 ~ 1000 Mbps
Maximum cable length : 100m
- Optical Media

6. OSI 7 Layer
Data Link Layer
- Direct Link Control,
Access to Media
Framing
Flow Control
Error Control
Sequence Control
- LAN
LLC sub-layer
(Logical Link Control)
MAC sub-layer
(Media Access Control)
MAC Frame
MAC Address
Vendor Code (3byte) Serial Number(3byte)

7. OSI 7 Layer
Network Layer
- ICMP
(Internet Control Message Protocol)
- ARP
(Address Resolution Protocol)
- RARP
(Reverse Address Resolution Protocol)
- IP
(Internet Protocol)

8. OSI 7 Layer
Transport Layer
- TCP
- UDP

9. OSI 7 Layer
http://www.wireshark.org