Linux FRR
From Teknologisk videncenter
Free Range Routing or FRRouting or FRR is a network routing software suite running on Unix-like platforms, particularly Linux, Solaris, OpenBSD, FreeBSD and NetBSD. It was created as a fork from Quagga, which itself was a fork of GNU Zebra. FRRouting is distributed under the terms of the GNU General Public License v2 (GPL2). FRR on Wikipedia