EECS 183 Lecture Notes - Lecture 8: Internet Protocol Suite, Simple Mail Transfer Protocol, Hypertext Transfer Protocol

• School: U of M
• Department: Electrical Engineering And Computer Science
• Course: EECS 183
• Professor: Jeffrey Ringenberg

Document Summary

Communication protocols: just like with binary data, information sent over the internet has to be organized/encoded, this is done using protocols from the internet protocol suite (ips) Four main layers of abstraction in the ips: link. Internet to ensure data gets from one place to another, needs to be encoded. Internet protocol suite: application layer establishes a task, specific encoding for data (http, Smtp, ftp, dns, etc. : transport layer establishes a standard and reliable channel for data transmission, ensures no data is lost (tcp, internet layer moves data across network boundaries using ip addresses (ipv4 and ipv6) Ipv4 (cid:0) ipv6 different ip addresses per user/internet service providers: link layer maintains connections at the hardware level (ethernet) Web indexing, caching and search: in order to make use of the vast amounts of information on the world wid. Web (which is only a small part of the internet), the information needs to be organized properly.