June 2010
Intermediate to advanced
224 pages
5h 18m
English
Content preview from Network Flow AnalysisBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Comparison Graphs
The easiest way to compare traffic from multiple time periods is to overlay one graph atop another; doing so helps you evaluate the impact of system changes on the network. You can use the same type of linear interpolation for this as well, with some needed changes to the graph techniques and the time values.
In the following report, you'll compare inbound and outbound Internet traffic from two different 24-hour periods, A and B. The data is in two files: inboundA.txt and inboundB.txt. I've already removed the column names from the top of these files.
Data Normalizing
To make the graphs overlay each other, you need to adjust the data times. Bandwidth values are largely unchanged, but the time values are problematic. The simplest ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.