Reset iftop scale

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1

Is there a way to reset the scale shown at the top of iftop, or have autoscaling based on the max transfer rate seen?

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For some reason, iftop has the linear scale going to some crazy numbers (9.31Gbps, I wish!) which make any normal traffic invisible on the scale. Changing to a logarithmic scale sets the max to a more reasonable 1Gbps and then the traffic can be visualized by the bars.

The version information is a bit confusing. iftop -h shows:

iftop, version 1.0pre4

But dnf info iftop says:

Version : 1.0
Release : 0.21.pre4.fc30

Meanwhile the official site says

The latest stable version of iftop is 0.17.

3

I know this is old, but I had the same question, and I found the answer elsewhere. I figured it would be good to share with others.

  1. Create a config file ~/.iftoprc
  2. put this line in the file: max-bandwidth: 2G

The documentation for the config file is in man, IFTOP(8).

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