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author | Nick Mathewson <nickm@torproject.org> | 2021-08-16 12:25:27 -0400 |
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committer | Nick Mathewson <nickm@torproject.org> | 2021-08-16 12:30:11 -0400 |
commit | 764abbfdea60b6a709801b244a2e3a798858a491 (patch) | |
tree | 5c89f1215b5eca346d0dd3a607c80dec487dd984 /path-spec.txt | |
parent | 8b911a241e4294aeb7b6bf249e22682989ef81c2 (diff) | |
download | torspec-764abbfdea60b6a709801b244a2e3a798858a491.tar.gz torspec-764abbfdea60b6a709801b244a2e3a798858a491.zip |
Specify the exact "fraction of paths" calculation that Tor uses.
Diffstat (limited to 'path-spec.txt')
-rw-r--r-- | path-spec.txt | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/path-spec.txt b/path-spec.txt index 092e8d4..f02bee6 100644 --- a/path-spec.txt +++ b/path-spec.txt @@ -144,6 +144,23 @@ of their choices. NUM_GUARDS_TO_USE guards among our primary guards. (see guard-spec.txt) + We define the "fraction of bandwidth-weighted paths" as the product of + these three fractions. + + * The fraction of descriptors that we have for nodes with the Guard + flag, weighted by their bandwidth for the guard position. + * The fraction of descriptors that we have for all nodes, + weighted by their bandwidth for the middle position position. + * The fraction of descriptors that we have for nodes with the Exit + flag, weighted by their bandwidth for the exit position. + + If the consensus has zero weighted bandwidth for a given kind of + relay (Guard, Middle, or Exit), Tor instead uses the fraction of relays + for which it has the descriptor (not weighted by bandwidth at all). + + If the consensus lists zero exit-flagged relays, Tor instead uses the + fraction of middle relays. + 2.1.1. Clients build circuits preemptively |