FRR is a fully featured, high performance, free software IP routing suite. It implements all standard routing protocols such as BGP, RIP, OSPF, IS-IS and more (see :ref:`feature-matrix`), as well as many of their extensions. It can handle full Internet routing tables and is suitable for use on hardware ranging from cheap SBCs to commercial grade routers, and is actively used in production by hundreds of companies, universities, research labs and governments.
FRR runs on all modern *NIX operating systems, including Linux and the BSDs. Feature support varies by platform; see the :ref:`feature-matrix`.
FRR is distributed under GPLv2, with development modeled after the Linux kernel. Anyone may contribute features, bug fixes, tools, documentation updates, or anything else.
FRR is a fork of Quagga.
.. toctree:: :maxdepth: 2 introduction basics protocols
.. toctree:: :caption: Appendix :maxdepth: 2 bugs packet-dumps glossary frr-reload
Copyright (c) 1996-2018 Kunihiro Ishiguro, et al.
Permission is granted to make and distribute verbatim copies of this manual provided the copyright notice and this permission notice are preserved on all copies.
Permission is granted to copy and distribute modified versions of this manual under the conditions for verbatim copying, provided that the entire resulting derived work is distributed under the terms of a permission notice identical to this one.
Permission is granted to copy and distribute translations of this manual into another language, under the above conditions for modified versions, except that this permission notice may be stated in a translation approved by Kunihiro Ishiguro.