CVSROOT: /cvs
Module name: src
Changes by: clau...@cvs.openbsd.org 2022/09/23 09:49:20
Modified files:
usr.sbin/bgpd : rde.c rde.h rde_decide.c rde_peer.c
rde_update.c
Log message:
Implement a special update generator for add-path send all.
The generic add-path code up_generate_addpath() reevaluates everything
since this is the simplest way to select the announced paths. For add-path
all this is overkill since there is no dependency between prefixes and so
individual prefixes can be handled more efficently.
Extend rde_generate_updates() to pass the current newbest and oldbest
prefixes (for the selected best path) but now also include newpath and
oldpath (which is the prefix that is added/removed/modified).
If newpath or oldpath is set then a single prefix was altered and
up_generate_addpath_all() can just remove or add this prefix.
If newpath and oldpath are NULL than the full list based on newbest
needs to be inserted and any old path/prefix removed in the process.
This improves update generation performance on big route collectors using
add-path all substantially.
OK tb@
