A new release of NS-3 based Named Data Networking (NDN) simulator went through extensive refactoring and rewriting. The key new features of the new version:
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Packet format changed to NDN Packet Specification
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ndnSIM uses implementation of basic NDN primitives from ndn-cxx library (NDN C++ library with eXperimental eXtensions)
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All NDN forwarding and management is implemented directly using source code of Named Data Networking Forwarding Daemon (NFD)
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Allows simulation of real applications written against ndn-cxx library
For more information, including downloading and compilation instruction, please refer to
http://ndnsim.net or documentation in docs/ folder.