1. ndnSIM Tutorial

2. About ndnSIM ns-3 based Named Data Networking (NDN) simulator
Current version 2.0
Web,

3. Index
Getting started
ndnSIM helpers
Examples
Metrics

4. Getting Started Preferred OS Install dependencies Ubuntu Linux 14.04
Only describe the steps on Ubuntu 14.04
Visit for more
Install dependencies

5. Download ndnSIM source
Download ndn-cxx
Download ns3 and add ndnSIM into it
May take hours to download, depending on the github server

6. Compile ndn-cxx Compile ns-3
Enable the examples (under ./src/ndnSIM/examples/)
The g++ compiler may crash several times, retry with './waf'

7. Index
Getting started
ndnSIM helpers
Examples
Metrics

8. ndmSim helpers NDN stack helper
Routing: where Interest can be forwarded
Manual routes

9. Automatic shortest path routes
install NDN interfaces on nodes
specify which node exports which prefix
calculate and install FIBs on every node

10. Forwarding strategy
Specify the desired per-name prefix forwarding strategy for one, more or all the nodes of a topology.
Strategy name
/localhost/nfd/strategy/best-route
/localhost/nfd/strategy/broadcast
Install on one node
Install on all nodes

11. Link Control helper
Allows scheduling of link failures and failure recoveries

12. Application Helper Create helper for specific applications class
Assign prefix on which application operates
Assign application-specific attributes using AppHelper::SetAttribute():
Install application on one or more nodes:

13. Index
Getting started
ndnSIM helpers
Examples
Metrics

14. Example: ndn-simple.cpp

15. Consumer is simulated using ConsumerCbr reference application and generates Interests towards the producer with frequency of 10 Interests per second

16. Producer is simulated using Producer class, which is used to satisfy all incoming Interests with virtual payload data (1024 bytes).

17. Run the program Run with log model Run with Python visualizer
$ NS_LOG=ndn.Producer:ndn.Consumer ./waf --run=ndn-simple
./waf --run=ndn-simple --vis

18. Example: ndn-grid-topo-plugin.cpp
A 3 × 3 grid topology
Use AnnotatedTopologyReader to load topology file

19. topo-grid-3x3.txt

20. ndn-grid-topo-plugin.cpp

22. $ ./waf --run=ndn-grid-topo-plugin --vis

23. Example: ndn-different-strategy-per-prefix.cpp
A grid topology
The broadcast strategy to be installed for the name prefix "/prefix1" in all the nodes
For the name prefix "/prefix2", the best-route strategy will be installed in all the topology nodes

24. ndn-different-strategy-per-prefix.cpp

27. $ ./waf --run=ndn-different-strategy-per-prefix --vis

28. Example: ndn-load-balancer.cpp
A load balancer topology

29. topo-load-balancer.txt

30. ndn-load-balancer.cpp

32. ./waf --run=ndn-load-balancer --vis

33. Example: ndn-simple-with-link-failure.cpp

36. Index
Getting started
ndnSIM helpers
Examples
Metrics

37. Metrics ndn::L3RateTracer
Tracing the rate in bytes and in number of packets of Interest/Data packets forwarded by an NDN node
Output file format is tab-separated values
Time, Node, FaceId, Type, Packets, Kilobytes, PacketsRaw, KilobytesRaw
See for details

38. L2Tracer
traces only packet drop on layer 2 (e.g., due to transmission queue overflow).
Output file format is tab-separated values,
Time, Node, Interface, Type, Packets, Kilobytes, PacketsRaw, KilobytesRaw
See for details

39. Example: ndn-tree-tracers.cpp
topo-tree.txt

40. ndn-tree-tracers.cpp

42. ./waf --run=ndn-tree-tracers
Create "rate-trace.txt", analyze

43. Example: ndn-tree-tracers.cpp
topo-tree-25-node.txt

49. ./waf --run=ndn-tree-with-l2tracer --vis