[tor-commits] [torspec/master] document the term "reasonably live"; clarify "live"

[nickm at torproject.org]

commit 85d7c57bbdf5492046b64ccb5761547de3ea171d
Author: Nick Mathewson <nickm at torproject.org>
Date:   Wed Aug 23 10:03:30 2017 -0400

    document the term "reasonably live"; clarify "live"
---
 dir-spec.txt | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/dir-spec.txt b/dir-spec.txt
index ade48ae..3c57fb8 100644
--- a/dir-spec.txt
+++ b/dir-spec.txt
@@ -3295,8 +3295,8 @@ The following methods have incorrect implementations; authorities SHOULD
    release time.]
 
    Clients try to have a live consensus network-status document at all times.
-   A network-status document is "live" if the time in its valid-until field
-   has not passed.
+   A network-status document is "live" if the time in its valid-after field
+   has passed, and the time in its valid-until field has not passed.
 
    When a client has no consensus network-status document, it downloads it
    from a randomly chosen fallback directory mirror or authority. Clients
@@ -3354,6 +3354,10 @@ The following methods have incorrect implementations; authorities SHOULD
    the same update strategy as for the normal consensus.  They should not
    download more than one consensus flavor.
 
+   When a client does not have a live consensus, it will generally use the
+   most recent consensus it has if that consensus is "reasonably live". A
+   "reasonably live" consensus is one that expired less than 24 hours ago.
+
 5.2. Downloading server descriptors or microdescriptors
 
    Clients try to have the best descriptor for each router.  A descriptor is