From ac2c675d32484949a333ac7a1fb31f2e441bcfb6 Mon Sep 17 00:00:00 2001 From: Randy Bush Date: Wed, 22 Mar 2023 15:33:25 -0700 Subject: [PATCH] multi-cache descrived better --- draft-ietf-sidrops-8210bis.xml | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-) diff --git a/draft-ietf-sidrops-8210bis.xml b/draft-ietf-sidrops-8210bis.xml index 6b99f44..88acc61 100644 --- a/draft-ietf-sidrops-8210bis.xml +++ b/draft-ietf-sidrops-8210bis.xml @@ -248,13 +248,11 @@ A VRP is effective if it is in the fetched set from any of the - currently preferred caches. Therefore, if the router is - fetching from multiple equal preference caches, then withdraws - of a particular VRP invalidating some prefix may take effect - comparitively later than announcements of that VRP. All in-use - caches must have withdrawn the VRP for the router to not have a - copy; but if the router has received an announcement from any - cache then that VRP is in effect. + currently preferred caches. Therefore, a VRP takes effect on + the router when the first cache serves that VRP, and the VRP is + in effect until the last cache withdraws that VRP. Thus, in a + global sense, the effect of a VRP announcement propagates more + quickly than a withdraw, Periodically, the router sends a Serial Query to the cache the