Part I: Introduction
What’s the Internet
What’s the Internet: a service view
A closer look at network structure:
The network edge:
Network edge: connection-oriented service
Network edge: connectionless service
The Network Core
Network Core: Circuit Switching
Network Core: Packet Switching
Packet switching versus circuit switching
Packet-switched networks: routing
Access networks and physical media
Residential access: point to point access
Residential access: cable modems
Institutional access: local area networks
Wireless access networks
Physical Media
Physical Media: coax, fiber
Physical media: radio
Delay in packet-switched networks
Queueing delay (revisited)
Email: shankar@cs.umd.edu