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This page summarizes the release planning for ns-3.29. The ns-3 release process is listed here and here.

Release status

ns-3.29 is not yet scheduled but should be published 2 to 4 months after ns-3.28.

Release goals

Of course, resolving all confirmed issues in our tracker is a priority. Here are a few more things we'd like to accomplish this cycle, and the names of people who volunteer to work on the issue.


New features

  • Review and merge remaining summer project code (GSoC and SOCIS) (various project mentors)
  • Other new features are listed on the tracker (some requiring reviews, and more work)


  • PCF support (Sebastien Deronne)


Feature level:

  • Westwood test suite


  • Performance improvements, by replacing RFC algorithms with faster versions: do RFC + faster version in debug mode (checking for result equality), and disable RFC algorithms in release mode


  • Split TcpSocketBase in three different source files: one for input, one for output, other for the state machine. 3000+ lines to read are a non-starter for educational purpose.

- Document the missing features when comparing ns-3 with Linux TCP.

Bug Fixes:

  • Some of them in some order... I still haven't an exact plan.

Traffic control

Stefano Avallone mentioned the following plans.

  • introduce other qdiscs: prio
  • help Pasquale and Tommaso to merge the netmap netdevice (SOCIS)
  • if time permits, implement the Diffserv to IEEE 802.11 mapping as defined by draft-ietf-tsvwg-ieee-802-11-09
  • review and merge a few pending code reviews which implement other qdiscs (REM, BLUE, PI, PI2) and add ECN support to CoDel and PIE


Mohit P. Tahiliani and his students are working on the following issues