FRRouting (FRR) is a free software IP routing protocol suite for Linux and Unix platforms which
includes protocol daemons.
It implements and manages various IPv4 and IPv6 routing protocols: currently BGP4, BGP4+, OSPFv2, OSPFv3, RIPv1, RIPv2, RIPng, IS-IS, PIM-SM/MSDP, LDP and Babel as well as very early support for EIGRP and NHRP.
FRR’s seamless integration with the native Linux/Unix IP networking stacks
makes it applicable to a wide variety of use cases including connecting
hosts/VMs/containers to the network, advertising network services, LAN
switching and routing, Internet access routers, and Internet peering.
FRR has its roots in the Quagga project. In fact, it was started by many
long-time Quagga developers who combined their efforts to improve on
Quagga's well-established foundation in order to create the best routing
protocol stack available. We invite you to participate in the FRRouting
community and help shape the future of networking.<