[tor-commits] [torspec/master] 271: Note the stickiness (not persistence) of unconfirmed primary guards

[nickm at torproject.org]

commit f936c50a1f7defa87c24e4f34f6e1b1c375d7d10
Author: Nick Mathewson <nickm at torproject.org>
Date:   Thu Dec 8 10:26:54 2016 -0500

    271: Note the stickiness (not persistence) of unconfirmed primary guards
    
    asn spotted this during code review.
---
 proposals/271-another-guard-selection.txt | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/proposals/271-another-guard-selection.txt b/proposals/271-another-guard-selection.txt
index 4da79ed..0f9328f 100644
--- a/proposals/271-another-guard-selection.txt
+++ b/proposals/271-another-guard-selection.txt
@@ -355,6 +355,10 @@ Status: Open
   PRIMARY_GUARDS chosen _uniformly_ at random from
   ({FILTERED_GUARDS} - {CONFIRMED_GUARDS}).
 
+  Once an element has been added to {PRIMARY_GUARDS}, we do not remove it
+  until it is replaced by some element from {CONFIRMED_GUARDS}. Confirmed
+  elements always proceed unconfirmed ones in the {PRIMARY_GUARDS} list.
+
   Note that {PRIMARY_GUARDS} do not have to be in
   {USABLE_FILTERED_GUARDS}: they might be unreachable.