Ns-3.22

Main Page - Roadmap - Summer Projects - Project Ideas - Developer FAQ - Tools - Related Projects

HOWTOs - Installation - Troubleshooting - User FAQ - Samples - Models - Education - Contributed Code - Papers

This page summarizes the release planning for ns-3.22. The ns-3 release process is listed here and here.

The release manager is Tom Henderson. Please contact him if you would like to participate in any way in preparing the ns-3.22 release.

Release goals

1) make a major dent in the bug tracker

2) continue the transition to a more modular build system

3) merge (into ns-3-dev or to a bake-enabled repository) as many new features as we can get ready, including all remaining features from 2013 and 2014 GSOC and SOCIS projects, and 2014 summer projects

Release schedule

ns-3.22 is planned for mid-January, 2015. ns-3 makes roughly three releases per year (Dec/Jan, Apr/May, and Aug/Sept timeframes).

This means that we ought to get most new features and major changes into the simulator by early December.

Packaging

ns-3.22 will be packaged as a source tarball as before: ns-allinone-3.22.tar.bz2.

The tarball will contain:

• Latest version of pybindgen
• Latest version of netanim
• ns-3.22
• bake

where bake is used to fetch optional ns-3 components, including DCE.

A patch from ns-3.21 to ns-3.22 will also be posted.

Whether ns-3.22 is prepared in other packaging (e.g. Debian) is to be determined.

Whether ns-3.22 will be distributed also as a Docker container is to be determined.

Release platforms

We usually try to keep pace with the latest popular versions of Linux, OS X, and FreeBSD. For the ns-3.22 release, we plan to support the following systems and compilers:

• OS X 10.10 Yosemite with latest Xcode
• Ubuntu 14.04 and 14.10 (gcc-4.8, 4.9)
• Fedora 20 and 21 (gcc-4.8, 4.9)
• Debian 7 (gcc-4.9)
• FreeBSD 10.1 (clang 3)
• some legacy platforms (to be determined); likely older Ubuntu LTS and CentOS systems, and OS X 10.9

New features

Developers are working or planning to work on the following new features for ns-3.22. Note: there is no guarantee that the features will be finished by the end of the year, so check back for progress/status.

Changes to the simulation core

• Python 3 support (Siddharth Sankurdar)
  • Synopsis: ns-3 is Python 2 based, and must be upgraded to support both Python 2 and 3
• Discuss changes due to Object Start/Stop discussion held at May developers meeting.
• Shared RngStream (Peter Barnes)
  • Synopsis: Add API to allow multiple random variables to share an underlying RNG stream
  • https://codereview.appspot.com/114060043/
• Changes to better support ns-3 on Windows Visual Studio
  • https://codereview.appspot.com/8932044/

Others to be determined

Statistics

• Add a basic statistics collector, and convert some existing stats helpers in LTE and WiFi to use the statistics framework (Tom Henderson and Li Li)

Internet module

• An implementation of MLDv2 for IPv6 (Krishna Teja Yadavalli and Tommaso Pecorella)
  • http://www.nsnam.org/wiki/GSOC2014MulticastIPv6
• FQ-Codel and SFQ-Codel models (Anh Nguyen and Dave Taht)
  • http://www.nsnam.org/wiki/GSOC2014Bufferbloat
  • This will require some refactoring to allow AQM queues that need access to the IP and transport headers to get access at the layer at which ns3::Queue operates
• Move RED queue from network module to internet module

TCP

• TCP variants for satellite networks (Natale Patriciello)
• RttEstimator improvements (Natale Patriciello)
• Multipath TCP (Morteza Kheirkhah Sabetghadam)

WiFi

• MPDU aggregation for 802.11n (Sebastien Deronne and Ghada Badawy, and others)
  • https://codereview.appspot.com/14549044/

Vehicular networks

• WAVE for 802.11 vehicular networks (Scott Carpenter and Junling Bu)
  • Finish off the 2013 GSoC code merging
• VANET example (Scott Carpenter)
  • https://codereview.appspot.com/103470050/
• Routes Mobility Model (Tiago Cerqueira)

Delay-tolerant networking

• Self-Delimiting Numeric Values (Dizhi Zhou and Ruben Martinez)
  • https://codereview.appspot.com/97540043/
• Licklider Transport Protocol (Ruben Martinez)
• Bundle Protocol from SOCIS 2013 (Dizhi Zhou)

DSR

• LEAR extensions https://codereview.appspot.com/96130043/

CSMA improvements =

• https://codereview.appspot.com/109450044/ (Mehdi Moussouni)

Epidemic Routing

• https://codereview.appspot.com/13831049/

Software maintenance issues

• Remove emu module from codebase (1945) (Tom Henderson)
• Mesh test crashes for certain configurations
• Time arithmetic consistency
• Wstrict-overflow and gcc-4.9 (Tom Henderson and Peter Barnes)
• Remove unnecessary dependency on Application module in other modules (1941) Tommaso Pecorella
  • Cleanup of remaining modules unnecessarily dependent on applications (aodv, mesh, olsr, lte)

Documentation improvements

• improve documentation on linking ns-3 with other libraries (Tom Henderson)

To be determined

Bugs or issues in ns-3 core

To be determined

Bugs in models to fix

To be determined

Documentation improvements

To be determined