15-213 Introduction to Computer Systems
Lecture 21: Internetworking

• Reading: 12.1-12.3
• Slides: 21-internet
• Internet protocol suite (on Wikipedia)
• Concepts:
  • Client-server model
  • internets
  • IP address
  • Internet domain name
  • DNS host entry
  • Port
  • Connection
• Previous lecture: System-Level I/O
• Next lecture: Network Programming