tc-viewer

If you're looking for a way to monitor current transfers that are happening in HTB and HFSC traffic shaping classes on your chosen interface, tc-viewer might be just what you need. This software reads output from "tc -s class show dev iface" and analyzes values for each class, such as the number of bytes and packets sent. It's important to note that measured speeds may not be completely accurate.

To use tc-viewer, you'll need to have Perl 5.x installed (the latest stable version is recommended for security reasons). Once you have the software, you can download the script and example configuration file (tc-viewer and tc-viewer.conf, respectively). Copy the tc-viewer script to a location in your PATH variable (such as /usr/sbin) and make sure it's executable with "chmod +x /path_to_script/tc-viewer". Then, modify the tc-viewer.conf file to meet your needs and place it in a suitable location (such as /etc).

In the latest release of tc-viewer, a bug related to high values of the "top" parameter has been fixed. Overall, this software can be a useful tool for monitoring traffic shaping classes and identifying any issues that may arise.