OpenContrail is an Apache 2.0-licensed project that is built using standards-based protocols and provides all the necessary components for network virtualization–SDN controller, virtual router, analytics engine, and published northbound APIs.

FRRouting (FRR) is an IP routing protocol suite for Linux and Unix platforms which includes protocol daemons for BGP, IS-IS, LDP, OSPF, PIM, and RIP.
Cost / License
- Free
- Open Source
Platforms
- Linux
freerouter is an open source routing suite supporting ospf, isis, rip, bgp, mpls, te, segment routing and a lot more.
Cost / License
- Free
- Proprietary
Platforms
- Windows
- Linux











