bgpd.pl

The route selection algorithm that is used to select routes announced by two or more peers was fixed.

Some wrong BGP::Neighbor::receive logic was rewritten. The router-id config
entry was fixed. A problem where iBGP was missing AS-PATH was fixed. The dump
output format was changed. Logging perfomance was improved.

A bug in AdjRibIn.pm where `!=' was used to compare packed IP addresses, a bug in Neighbor.pm where UPDATES with unfeasable routes would not have their new routes processed, and a bug in Neighbor.pm where the closure of a BGP session would not undefine the filehandle leading to errors in socket processing were fixed. Logging was redesigned.

Logging.pm has been removed, and the logging
functions are in the BGP and Neighbor modules.
Objects and modules have been created for BGP,
BGP::Neighbor, and PathAttribute. %conf has been
OOB'd (although it is not an object yet). The
elements $conf{adjRIBin} & $conf{localRIB} have
been added. Configuration file support has been
added. Neighbors need to be defined in this file,
or else incoming BGP sessions are not accepted.
The routing table dump is now generated after a
USR1 signal instead of a HUP signal. An overview
of the configured BGP sessions can be generated
with SIGUSR2. A bug where route aggregation was
going a bit too automagically has been fixed.
Prefixes in adj-RIB-in now reference a Path
Attribute hash. This hash is referenced by
multiple prefixes if these prefixes are send in
one BGP UPDATE message. This should significantly
reduce memory consumption.

This version fixes a bug in handling the local preference attribute, "send",
with BGP update messages of iBGP sessions.