OpenH323 is a multi-platform H323 Video Conferencing library.
This is used to make H323 Video Conferencing applications
like GnomeMeeting and ohphone. (both in the FreeBSD ports tree)
The library includes a sample program called simph323.
The OpenH323 library makes use of PWLib. http://www.equival.com
PWLib is a multi-platform code library that can be used to write
applications that will compile and run on the BSD Unixes, Windows, Linux
and a few other Unix variants. It was developed by Equivalence Ltd Pty.
OpenOSPFD is a FREE implementation of the Open Shortest Path First Protocol.
It allows ordinary machines to be used as routers exchanging routes with
other systems speaking the OSPF protocol.
OpenSIPS (Open SIP Server) is a mature Open Source implementation
of a SIP server.
It includes application-level functionalities and is the core component
of any SIP-based VoIP solution. With a very flexible and customizable
routing engine, OpenSIPS unifies voice, video, IM and presence
services in a highly efficient way, thanks to its scalable (modular)
design.
It is reliable and fast, for enterprise or carrier-grade use cases.
opentracker is a open and free bittorrent tracker project.
It aims for minimal resource usage and is intended to run
at your wlan router. Currently it is deployed as an open and
free tracker instance.
Open vSwitch is a production quality, multilayer virtual switch licensed
under the open source Apache 2.0 license. It is designed to enable massive
network automation through programmatic extension, while still supporting
standard management interfaces and protocols (e.g. NetFlow, sFlow, RSPAN,
ERSPAN, CLI, LACP, 802.1ag). In addition, it is designed to support
distribution across multiple physical servers similar to VMware's vNetwork
distributed vswitch or Cisco's Nexus 1000V.
OSSP sa is an abstraction library for the Unix socket application
programming interface (API) featuring stream and datagram oriented
communication over Unix Domain and Internet Domain (TCP and UDP) sockets. It
provides the following key features: address abstraction (local, IPv4, and
IPv6), type abstraction, I/O timeouts, I/O stream buffering and convenience
I/O functions.
Ostinato is an open-source, cross-platform network packet crafter/traffic
generator and analyzer with a friendly GUI. Craft and send packets
of several streams with different protocols at different rates.