CSE 310 Chapter Notes - Chapter 1: Network Interface Controller, Docsis, Hypertext Transfer Protocol
Document Summary
The internet is composed of many parts such as applications and protocols, various types of end systems, packet switches, and various types of link-level media. There is a way to organize a network architecture. "you are being shipped from source to destination by the airline; a packet is shipped from source host to destination host in the internet. " A layered architecture breaks down a complex system into de ned parts. If the implementation of a part changes, it will not affect the rest of the layers. Layers: way to organize protocols and the network hardware and software that implement the protocols. Services and the service model: "each layer provides its service by: 2. performing certain actions within that layer and by using the services of the layer directly below it" "a protocol layer can be implemented in software, in hardware, or in a combination of the two. "