OpenConfig
"OpenConfig’s initial focus is on compiling a consistent set of vendor-neutral data models (written in YANG) based on actual operational needs from use cases and requirements from multiple network operators." (c) OpenConfig
Links: website, GitHub public repository
Apache Thrift
"software framework, for scalable cross-language services development, combines a software stack with a code generation engine to build services that work efficiently and seamlessly between C++, Java, Python, PHP, Ruby, Erlang, Perl, Haskell, C#, Cocoa, JavaScript, Node.js, Smalltalk, OCaml and Delphi and other languages."
Links: home
OpenSAF
HA (High Availability) framework
Links: home
Open Source SDN
A community for developers and operators of open SDN solutions
Links: Home page; a page with links to open source SDN projects and websites
Python
Python for Network Engineers Resources - link
RouteFlow
"Open source solution to provide legacy IP routing services (e.g., OSPF, RIP) over OpenFlow networks"
Links: github.io page, sites.google.com page
Interface to the Routing System (i2rs)
"I2RS facilitates real-time or event driven interaction with the routing system through a collection of protocol-based control or management interfaces. "
Links: IETF Charter
FD.io
About: "FD.io (Fast data - Input/Output) is a collection of several projects and libraries to amplify the transformation that began with Data Plane Development Kit (DPDK) to support flexible, programmable and composable services on a generic hardware platform... A key component is the Vector Packet Processing (VPP) library donated by Cisco."
Links: About
Security
Google Cloud Platform Infrastructure Security Design Overview - https://cloud.google.com/security/infrastructure/design