August 2018
Intermediate to advanced
466 pages
10h 23m
English
Content preview from Mastering Python Networking - Second Edition
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The OSI model
No network book is complete without first going over the Open System Interconnection (OSI) model. The model is a conceptional model that componentizes the telecommunication functions into different layers. The model defines seven layers, and each layer sits independently on top of another one, as long as they follow defined structures and characteristics. For example, in the network layer, IP, can sit on top of the different types of data link layers, such as Ethernet or frame relay. The OSI reference model is a good way to normalize different and diverse technologies into a set of common language that people can agree on. This greatly reduces the scope for parties working on individual layers and allows them to look at specific ...
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