Commit e0c5a0cc authored by juga's avatar juga
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docs: remove background

if included, it should rather be in a history page.
parent dea9a380
Simple Bandwidth Scanner technical details
============================================
Background
----------
Some of the Tor :term:`directory authorities <directory authority>`
run bandwidth scanners to measure the bandwidth of relays and include their
measurements in their network status votes. Clients use the consensus of these
weights to inform their path selection process with the hope that every circuit
they build will have roughly equal performance, regardless of the relays
chosen. This achieves a form of load balancing.
.. _problem:
Historically, the directory authorities that ran bandwidth scanners
(:term:`bandwidth authorities <bandwidth authority>`), ran torflow_. Time
passed, it slowly become less maintained, and the collective knowledge of how
it worked slipped away.
The bandwidth authorities became increasingly unhappy having to run torflow.
Twice yearly Tor Project meetings came and went. Everyone agreed a replacement
was needed, but it was harder to reach consensus on what it should look like
and what its goals where.
Simple Bandwidth Scanner (sbws) is a project motivated by discussions at the
Rome 2018 Tor Project meeting. It aims to be a quick to implement,
easy to maintain replacement for torflow. It should not receive many fancy
features; instead, developer time should be spent on finding and implementing a
better load balancing solution than bandwidth scanning, such as peerflow_.
This document describes the implementation contained within the accompanying
``sbws`` package.
Anatomy of a Tor network using sbws
-----------------------------------
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