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NFD is a network forwarder that implements and evolves together with the NamedData Networking (NDN)protocol.Since the initial public release in 2014, NFD has been a core component of theNDN Platform.

The main design goal of NFD is to support diverse experimentation of NDN technology. Thedesign emphasizesmodularity andextensibility to allow easy experiments with newprotocol features, algorithms, new applications. We have not fully optimized the code forperformance. The intention is that performance optimizations are one type of experimentsthat developers can conduct by trying out different data structures and differentalgorithms; over time, better implementations may emerge within the same design framework.

NFD will keep evolving in three aspects: improvement of the modularity framework, keepingup with the NDN protocol spec, and addition of other new features. We hope to keep themodular framework stable and lean, allowing researchers to implement and experiment withvarious features, some of which may eventually work into the protocol spec.

Seedocs/INSTALL.rst for compilation and installation instructions.

Extensive documentation is available on NFD'shomepage.

Please submit any bug reports or feature requests to theNFD issue tracker.

NFD is developed by a community effort. Although the first release was mostly done by themembers ofNSF-sponsored NDN project team,it already contains significant contributions from people outside the project team (seeAUTHORS.md). We strongly encourage participation from all interested parties,since broader community support is key for NDN to succeed as a new Internet architecture.

Contributions to NFD are greatly appreciated and can be made through ourGerrit code review site.If you are new to the NDN software community, please read ourContributor's GuideandREADME-dev.md to get started.

NFD is free software distributed under the GNU General Public License version 3.SeeCOPYING.md for details.

NFD contains third-party software, licensed under the following licenses:

• CityHash is licensed under theMIT license
• TheWebSocket++ library is licensed under the3-clause BSD license
• Thewaf build system is licensed under the3-clause BSD license