인터넷시스템 5/2 - 3장 Transport Layer

3장 Transport Layer

3.1 Transport-layer services
3.2 multiplexing and demultiplexing
3.3 connectionless transport: UDP
3.4 principles of reliable data transfer
3.5 connection-oriented transport: TCP
3.6 principles of congestion control
3.7 TCP congestion control

전송 계층 서비스
멀티플렉싱/디멀티플렉싱
비연결 전송: UDP
신뢰 전송 방법

실습

UDP 실습: http://gaia.cs.umass.edu/wireshark-labs/Wireshark_UDP_v6.1.pdf

인터넷시스템 4/18 - 2장 Application Layer (P2P, Socket Programming)

2장 Application Layer (P2P, Socket Programming)

P2P

• BitTorrent
• Distributed Hash Table

Socket Programming with Python

• UDP
• TCP
• https://github.com/jyheo/python365_hansung/tree/master/socket

실습:

DNS실습

C:\> nslookup -type=NS hansung.ac.kr

C:\> nslookup -type=MX hansung.ac.kr

C:\> nslookup ns.hansung.ac.kr

C:\> nslookup antispam.hansung.ac.kr

C:\> ipconfig /flushdns

http://gaia.cs.umass.edu/wireshark-labs/Wireshark_DNS_v6.01.pdf

인터넷시스템 3/28 - 2장 Application Layer (Web and HTTP)

2장 Application Layer (Web and HTTP)

2.1 principles of network application

• Application architecture:
• clinet-server
• p2p
• addressing = IP + port
• App-layer protocol

2.2 Web and HTTP

• HTTP overview
• Non-persistent/Persistent
• HTTP message
• request
• response
• Cookie
• Web caching

실습

Wireshark_HTTP_v6.1
http://gaia.cs.umass.edu/wireshark-labs/Wireshark_HTTP_v6.1.pdf