(r1) DonaldsTopicLevelLearningGoals < Main

-- DonaldActon - 23 Mar 2011

The two parts of networking
- the way/technology that actually exchanges data
- the rules/semantics (protocol) for the data exchange
Explain what the network fallacies are/mean:
- (network reliability, latency is zero, infinite bandwidth ...)
Organization of the end systems + routers + communications links
Organization role of protocols, network of networks, standards
Network of networks
- layering, tiering
Protocol properties, reliable delivery, ordering, best effort
Network construction, ADSL, wireless, etc
Properties of networks, delay, bandwidth, errors, throughput
Difference in how data moves between circuit switching and packet switching
Sharing of bandwidth, TDM, FDM
Case for packet switching
What contributes to delay, including queuing delay
Interpreting traceroute with respect to delay meanings
idea and purpose of protocol layering
basic network security/vulnerability issues (trojans, man in the middle etc)
Application level protocol examples & how information is exchanged
- web/http as a bi-directional connected streams, client server model
- ftp - difference between a control channel and out of band data channel
- mail protocols - fact that there is no guarantee of who is sending mail
- DNS - large distributed application - not based on connections - how it works
- P2P example (bittorrent - edonkey, DHT)
Addressing - role of IP address and port
Transport layer properties, timing, throughput, loss
Performance HTTP as an example of ways to make things go faster
multplexing and demultiplexing and how it is achieved TCP and UDP

Topic revision: r1 - 2011-03-23 - DonaldActon

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