ns-3 RELEASE NOTES

This file contains ns-3 release notes (most recent releases first).  

All of the ns-3 documentation is accessible from the ns-3 website: 

http://www.nsnam.org including tutorials: http://www.nsnam.org/tutorials.html

Consult the file CHANGES.html for more detailed information about changed

API and behavior across ns-3 releases.

Release 3.9

===========

Availability

------------

This release is not yet available.

Supported platforms

-------------------

ns-3.9 has been tested on the following platforms:

Not all ns-3 options are available on all platforms; consult the

wiki for more information:

http://www.nsnam.org/wiki/index.php/Installation

New user-visible features

-------------------------

   - A reorganisation of the construction of Wi-Fi transmit rates has

     been undertaken with the aim of simplifying the task of

     supporting further IEEE 802.11 PHYs. This work has been completed

     under the auspices of Bug 871. A consequence of this work is that

     WifiModes have a new (hopefully future-proof) naming, and

     simulations which specify rates by name will need updating. The

     list of new rate names is given in the error message produced

     when an attempt is made to use any invalid rate name (including

     those that were previously valid).

   - A new OFDM error rate model for WiFi (NistErrorRateModel); this model

     has been validated in clear-channel testbed tests.  For 802.11b, it

     uses the same underlying model as the YansErrorRateModel, but it differs

     from YansErrorRateModel for OFDM modes (802.11a/g).

   - A brand new NS-2 mobility trace reader supports BonnMotion, SUMO, TraNS, 

     etc. traces.

Bugs fixed

----------

The following lists many of the bugs that were fixed since ns-3.7, in

many cases referencing the Bugzilla bug number

   - IPv4 global routing code; stub networks were assumed to be /24

     and added as /24 networks even if the mask is actually different

   - bug 842 - ns-3-dev crashes using block acks

   - OLSR was generating messages on non-OLSR interfaces

   - bug 861 - Forwarding drops (due to no route found) were not being logged 

               in IPv4 or IPv6 ascii traces

   - ICMPv4 objects not properly registered; affected serialization code

   - bug 875 - Set FCS included flag in Radiotap header

   - bug 702 - Global routing doesn't respond to interface events

   - bug 906 - NSC TCP socket fork did not copy txbuffersize over

   - bug 828: PacketSocket::Close does not unregister protocol handler

   - bug 900:  RawTextConfigLoad::Default does not load configurations

   - bug 858 - support MSG_PEEK in IPv4/IPv6 raw socket

   - bug 932 - Support IP_HDRINCL option for Ipv4RawSocket

   - bug 871 - naming for WifiPhyStandard

Known issues

------------

Release 3.8

===========

Availability

------------

This release is immediately available from:

http://www.nsnam.org/releases/ns-allinone-3.8.tar.bz2

Supported platforms

-------------------

ns-3.8 has been tested on the following platforms:

  - linux x86 gcc 4.4.0, 4.3.2, 4.2, 4.1.1, 4.1 and 3.4.6 (debug and optimized)

  - linux x86_64 gcc 4.4.0, 4.3.2, 4.2.4, 4.2.3, 4.2.1, 4.1.3, 3.4.6 (debug and optimized)

  - MacOS X ppc gcc 4.0.x and 4.2.x (debug and optimized)

  - cygwin gcc 4.3.4 (debug and optimized)

Not all ns-3 options are available on all platforms; consult the

wiki for more information:

http://www.nsnam.org/wiki/index.php/Installation

New user-visible features

-------------------------

  a) WiMAX net device: Allow to simulated IEEE 802.16 point to multi-point based networks 

  b) Distributed simulation for point-to-point networks using the Message 

     Passing Interface (MPI) standard.

  c) Matrix propagation loss model uses a two-dimensional matrix of path loss indexed 

     by source and destination nodes.

  d) Topology read system: Allows quick and easy creation of large topologies by reading 

     Inet or Orbis files

  e) Gauss-Markov mobility model: Adds 3-d adaptation of Gauss-Markov mobility model which 

     has both memory and variability

  f) Steady-state random waypoint mobility model: Based on random waypoint mobility (RWM) model for case when 

     speed, pause and position are uniformly distributed random variables. However, initial values of these 

     parameters are not from uniform distribution but from stationary distribution of RWM model.

  g) Two-ray ground propagation loss model: Calculates the crossover distance under which Friis is used. 

     The antenna height is set to the nodes z coordinate, but can be added to using the model parameter 

     SetHeightAboveZ, which will affect ALL stations

API changes from ns-3.7

-----------------------

API changes for this release are documented in the file CHANGES.html. 

Bugs fixed

----------

The following lists many of the bugs that were fixed since ns-3.7, in

many cases referencing the Bugzilla bug number

   - bug 155 - std::ostream & os" parameters not Python friendly

   - bug 184 - GtkConfigStore do not support ConfigureDefault

   - bug 407 - OLSR is missing HNA support

   - bug 414 - No ReceiveErrorModel in SimpleNetDevice

   - bug 602 - WifiRemoteStation lacks information about the access class of outgoing packets

   - bug 622 - [PATCH] Friendly names for pcap traces

   - bug 683 - Helper methods for pcap tracing with explicit filenames

   - bug 706 - Backoff counting when starting NS.

   - bug 720 - TapBridge creation fails from a script outside the ns3 tree

   - bug 731 - Send function in point-to-point-net-device fails to check the return value of the Dequeue function

   - bug 747 - Listening TCP socket closes on RST

   - bug 748 - Cloned TCP socket uses wrong source address

   - bug 772 - AODV is unable to correctly buffer packets waiting for route reply

   - bug 777 - AODV ignores specified outgoing interface in RouteOutput()

   - bug 778 - OLSR ignores specified outgoing interface in RouteOutput()

   - bug 787 - Addition of Two Ray Ground model to propagation loss model and tests

   - bug 788 - OLSR_NEIGH_HOLD_TIME should be 3 times OLSR_REFRESH_INTERVAL 

   - bug 789 - [PATCH] Globalrouting externalroutes to use the new GetRootExitDirections()

   - bug 794 - Ipv4Mask constructor for "/yy"-notation is wrong

   - bug 796 - TCP bug in ns-3-dev branch : Crash detected during retesting of Chord on ns-3-dev branch

   - bug 797 - Enhancements to src/core/random-variable.cc/h

   - bug 801 - ns-3.7 and SVN not coexisting nicely

   - bug 802 - Minstrel algorithm causes segmentation fault

   - bug 804 - null-pointer references in 3.7 internet stack

   - bug 806 - TCP doesn't work over a CSMA link

   - bug 807 - ns2-mobility-helper.cc: node id parsed wrong

   - bug 809 - Missing Python binding for Ipv4GlobalRouting::GetRoute

   - bug 810 - In TCP, Socket::GetSockName() does not return the local socket address

   - bug 812 - Assert when getting socket in RecvReply for AODV

   - bug 813 - Nqos AP sends packet to non associated STA

   - bug 814 - Function logging causing assert in wireless examples

   - bug 815 - waf shell file descriptor leak

   - bug 816 - tap-creator deadlock when python bindings enabled

   - bug 817 - Pareto rng constructors using scale and shape instead of mean and shape

   - bug 818 - TCP Socket implementation does not set ACK flag on retransmits

   - bug 819 - Build break when gtk not installed

   - bug 820 - Bad things happen in test.py when logging is enabled

   - bug 821 - AODV asserts with function logging enabled

   - bug 822 - Move Mtu attribute from NetDevice base class to subclasses

   - bug 825 - UDP-Client-server's packet loss counter not properly reset

   - bug 828 - PacketSocket::Close does not unregister protocol handler

   - bug 829 - TCP unbound memory problem (pending data)

   - bug 833 - OnOffApplication with PacketSocket: sniffs all traffic

   - bug 834 - Incorrect signature of Ipv4FlowProbe::DropLogger

   - bug 835 - Unlimited receive queues in sockets == evil

   - bug 836 - Delay is incremented over time with BsUplinkSchedulerSimple and BsUplinkSchedulerRtps

   - bug 838 - ns-3 can't compile on MacOS with 32bit processor

   - bug 839 - TestSuite wimax-ss-mac-layer crashes on Darwin 9.8.0 Power Macintosh

   - bug 840 - BS scheduler does not support fragmentation for UGS flows

   - bug 841 - Multicast transmission breaks with QoS Wifi

   - bug 844 - YansWifiPhy::GetPowerDbm off-by-one problem when calculating Tx power

   - bug 847 - Segfaults on BaseStationNetDevice with OnOffApplication and rtPS sched

   - bug 849 - stray patch files in lwip directory

   - bug 850 - Ipv4GlobalRouting::LookupGlobal bug

   - bug 855 - waf dies badly when switching from debug to optimized build or vice versa

   - bug 856 - initialize vbl

   - bug 857 - Link-Local Multicast handle in Ipv4 Output processing 

   - bug 859 - Output interface estimation for the source address bound socket in IPv4 Raw socket

   - bug 860 - waf sometimes dies while executing ns3header or gen_ns3_module_header tasks in case of 

               parallel jobs

   - bug 862 - NotifyInterfaceUp() Adds network route even when netmask is /32

   - bug 863 - Wrong Scalar arithmetics

   - bug 864 - Invalid return value in UdpSocketImpl::Send and Ipv4RawSocketImpl::Send

   - bug 865 - Ipv4RawSocketImpl::RecvFrom does not return from address all the time.

   - bug 866 - WiMAX mobility models not aggregated to Node

   - bug 867 - Minor bug in Ipv4L3Protocol::Send()

   - bug 868 - invalid packet size after Ipv4L3Protocol::Send

   - bug 872 - ns3::PcapFileWrapper::Write explodes stack

   - bug 873 - Queue occupancy counter not decremented in WifiMacQueue::Remove()

   - bug 876 - Tcp socket does not handle ShutdownRecv correctly

   - bug 877 - python bindings broken with multiple inheritance ?

   - bug 880 - Node sending a packet to itself via 127.0.0.1 aborts

   - bug 885 - Error in Ascii tracing in Python examples

   - bug 888 - Writing ascii trace to addtional tests fails

   - bug 891 - WiMAX device helper does not include propagation loss model by default 

   - bug 894 - ./waf --run error message upon segfault

   - bug 895 - SimpleOfdmWimaxPhy SNR computation

   - bug 899 - EmuNetDevice::SetPromiscReceiveCallback not implemented

Known issues

------------

ns-3 builds have been known to fail on the following platforms:

  - gcc 3.3 and earlier

  - optimized builds on gcc 3.4.4 and 3.4.5

  - optimized builds on linux x86 gcc 4.0.x

Release 3.7

===========

Availability

------------

This release is immediately available from:

http://www.nsnam.org/releases/ns-allinone-3.7.tar.bz2

Supported platforms

-------------------

ns-3.7 has been tested on the following platforms:

  - linux x86 gcc 4.4.0, 4.3.2, 4.2, 4.1.1, 4.1 and 3.4.6 (debug and optimized)

  - linux x86_64 gcc 4.4.0, 4.3.2, 4.2.4, 4.2.3, 4.2.1, 4.1.3, 3.4.6 (debug and optimized)

  - MacOS X ppc gcc 4.0.x and 4.2.x (debug and optimized)

  - cygwin gcc 3.4.4 (debug only), gcc 4.3.2 (debug and optimized)

Unofficially supported platform

-------------------

- mingw gcc 3.4.5 (debug only)

Not all ns-3 options are available on all platforms; consult the

wiki for more information:

http://www.nsnam.org/wiki/index.php/Installation

New user-visible features

-------------------------

  a) Ad hoc On-Demand Distance Vector (AODV) routing model (RFC 3561)

  b) IPv6 extensions support to add IPv6 extensions and options.  Two 

     examples (fragmentation and loose routing) are available.

  c) NetAnim interface: Provides an interface to the Qt-based NetAnim 

     animator, which supports static, point-to-point topology-based 

     packet animations.

  d) New topology helpers have been introduced

     - PointToPointDumbbellHelper

     - PointToPointGridHelper

     - PointToPointStarHelper

     - CsmaStarHelper

  e) Equal-cost multipath for global routing: Enables quagga's equal 

     cost multipath for Ipv4GlobalRouting, and adds an attribute that

     can enable it with random packet distribution policy across 

     equal cost routes.

  f) Binding sockets to devices:  A method analogous to a SO_BINDTODEVICE

     socket option has been introduced to class Socket

  g) Object::DoStart: Users who need to complete their object setup at 

     the start of a simulation can override this virtual method, perform their 

     adhoc setup, and then, must chain up to their parent.

  h) Ipv4::IsDestinationAddress method added to support checks of whether a 

     destination address should be accepted as one of the host's own 

     addresses.  

  i) UniformDiscPositionAllocator added; distributes uniformly the nodes 

     within a disc of given radius. 

  j) ChannelNumber attribute added to YansWifiPhy. Now it is possible to 

     setup wifi channel using WifiPhyHelper::Set() method.

  k) WaypointMobilityModel provides a method to add mobility as a set of 

     (time, position) pairs

  l) 802.11p WiFi standards 

  m) UDP Client/Server application

  n) Support transactions in the SQLite output interface, making it usable for larger amounts of data

API changes from ns-3.6

-----------------------

API changes for this release are documented in the file CHANGES.html. 

Bugs fixed

----------

The following lists many of the bugs that were fixed since ns-3.6, in

many cases referencing the Bugzilla bug number

   - bug 752: Object::DoStart is not executed for objects created at t > 0

   - bug 767:  Incorrect modulation for 802.11a modes

   - bug 725: wifi fragmentation and RTS cannot be used at the same time

   - bug 782: CreateTap () requires IP address in modes other than 

     CONFIGURE_LOCAL.

   - bug 769: Queue::GetTotalReceived{Bytes,Packets}() broken

   - bug 738 ReceiveErrorModel called too late

   - Fix NSC improper response to FIN

   - Fixed bug in serialization of PbbAddressBlock.

   - Fix bug 780 (problem in RoutingTableComputation with asymetric links), 

     while adding debugging methods to OLSR.  

   - bug 759: Ipv6 uses wrong outgoing interface.

   - bug 770: IPv6 size calculation for unknown options is wrong.

   - bug 771: Radvd does not set ttl value.

   - Fix bug 606:  Arp depends on IP routing system

   - pad out CSMA payloads to 46 bytes if needed

   - Drop CSMA packets with CRC errors, rescan, dox tweaks

   - Add FCS capability to CSMA

   - Mesh:Dot11s: fixed airtime metric

   - Get emu working again:  Add Dix/Llc option, add and use contextual 

     realtime schedule ops, don't refcount realtime simulator impl

   - bug 695 - DcfManager::UpdateBackoff () uses slow HighPrecision::Div()

   - bug 674 - EIFS is not handled correctly in DcfManager::GetAccessGrantStart

   - bug 739 -  OLSR: Strange HTime value in HELLO messages 

   - bug 746 -  UDP source address is not set to bound address

   - bug 735 Update Olsr for local delivery

   - bug 740 OLSR MprCompute () works wrong: fixed

   - bug 729 Enable IPv6 over PPP.

   - bug 645: fixes for opening stats file with OMNeT++

   - bug 689: default energy detection and CCA thresholds are changed to be 

     more realistic.

   - bug 733: OLSR MPR Computation give incorrect result

   - Mesh: HWMP: fixed proactive routes

   - Mesh: fixed FLAME PATH_UPDATE procedure, fixed mesh.cc 

Known issues

------------

ns-3 builds have been known to fail on the following platforms:

  - gcc 3.3 and earlier

  - optimized builds on gcc 3.4.4 and 3.4.5

  - optimized builds on linux x86 gcc 4.0.x

Release 3.6

===========

Availability

------------

This release is immediately available from:

http://www.nsnam.org/releases/ns-allinone-3.6.tar.bz2

Supported platforms

-------------------

ns-3.6 has been tested on the following platforms:

  - linux x86 gcc 4.4.1, 4.2, 4.1, and, 3.4.6.

  - linux x86_64 gcc 4.4.0, 4.3.2, 4.2.3, 4.2.1, 4.1.3, 3.4.6

  - MacOS X ppc and x86 (gcc 4.0.x and 4.2.x)

  - cygwin gcc 3.4.4 (debug only), gcc 4.3.2 (debug and optimized)

Not all ns-3 options are available on all platforms; consult the

wiki for more information:

http://www.nsnam.org/wiki/index.php/Installation

New user-visible features

-------------------------

  a) 802.11 models:

     - Add an implementation of the minstrel rate control algorithm 

       (Duy Nguyen for gsoc)

     - AthstatsHelper: enables the wifi device to produce periodic 

       reports similar to the ones generated by madwifi's

       athstats tool (Nicola Baldo)

     - 10MHz and 5MHz channel width supported by 802.11a model 

       (Ramon Bauza and Kirill Andreev)

     - Channel switching support. YansWifiPhy can now switch among 

       different channels (Ramon Bauza and Pavel Boyko)

  b) IPv6 models:

    - IPv6 interface;

    - IPv6 layer;

    - IPv6 raw socket;

    - Static IPv6 routing;

    - ICMPv6 layer;

    - Some ICMPv6 error messages (destination unreachable, ...);

    - Neighbor Discovery Protocol (NS/NA, RS/RA, redirection);

    - Ping6 application (send Echo request);

    - Radvd application (send RA);

    - Examples (ping6, simple-routing-ping6, radvd, radvd-two-prefix,

      icmpv6-redirect).

  c) Wireless Mesh Networking models:

    - General multi-interface mesh stack infrastructure (devices/mesh module).

    - IEEE 802.11s (Draft 3.0) model including Peering Management Protocol and HWMP.

    - Forwarding Layer for Meshing (FLAME) protocol.

  d) Nix-vector routing:  

    - Ipv4NixVectorHelper

    - Examples (nix-simple, nms-p2p-nix)

  e) New Test Framework

    - Use test.py instead of ./waf check or ./waf --regression

    - Previous unit tests have been ported to new framework.

    - Examples are tested for run-ability.

  f) A new Flow Monitor module

   - To very easily measure flow metrics in a simulation

   - No need to use trace callbacks or parsing trace files

API changes from ns-3.5

-----------------------

API changes for this release are documented in the file CHANGES.html. 

Known issues

------------

ns-3.6 build is known to fail on the following platforms:

  - gcc 3.3 and earlier

  - optimized builds on gcc 3.4.4 and 3.4.5

  - optimized builds on linux x86 gcc 4.0.x

Release 3.5

===========

Availability

------------

This release is immediately available from:

http://www.nsnam.org/releases/ns-allinone-3.5.tar.bz2

Supported platforms

-------------------

ns-3.5 has been tested on the following platforms:

  - linux x86 gcc 4.2, 4.1, and, 3.4.6.

  - linux x86_64 gcc 4.4.0, 4.3.2, 4.2.3, 4.2.1, 4.1.3, 3.4.6

  - MacOS X ppc and x86 (gcc 4.0.x and 4.2.x)

  - cygwin gcc 3.4.4 (debug only), gcc 4.3.2 (debug and optimized)

  - mingw gcc 3.4.5 (debug only)

Not all ns-3 options are available on all platforms; consult the

wiki for more information:

http://www.nsnam.org/wiki/index.php/Installation

New user-visible features

-------------------------

  a) 802.11 MAC:

     - EDCA multi-qos-class support (Mirko Banchi)

     - 802.11n initial support for A-MSDU frame aggregation (Mirko Banchi)

     - aarf-cd and cara rate control algorithms (Federico Maguolo)

  b) 802.11 PHY:

     - 802.11b PHY support (Gary Pei)

     - Nakagami propagation loss model (Timo Bingmann)

     - radiotap and prism headers for PCAP output (Nicola Baldo)

  c) RandomVariable:

     - GammaVariable and ErlangVariable (Timo Bingmann)

     - ZipfVariable (Francesco Malandrino)

  d) UdpEcho: allows setting the payload of echo packets

  e) Ipv4/Ipv4RoutingProtocol: allow fine-grained control over

     routing policy and arbitrary composition of routing protocols

API changes from ns-3.4

-----------------------

API changes for this release are documented in the file CHANGES.html.  The

internal API and composition of the IPv4 stack underwent significant

refactoring in this release cycle.

Known issues

------------

ns-3 build is known to fail on the following platforms:

  - gcc 3.3 and earlier

  - optimized builds on gcc 3.4.4 and 3.4.5

  - optimized builds on linux x86 gcc 4.0.x

Future releases

---------------

Our next release, which is expected to happen in 2 to 4 months from now, will

feature the merging of some of our projects currently in development including

fuller IPv6 support, some smaller features such as a new Global ARP 

package, and possibly a new Testing and Validation suite.

Release 3.4

===========

Availability

------------

This release is immediately available from:

http://www.nsnam.org/releases/ns-allinone-3.4.tar.bz2

Supported platforms

-------------------

ns-3.4 has been tested on the following platforms:

  - linux x86 gcc 4.2, 4.1, and, 3.4.6.

  - linux x86_64 gcc 4.3.2, 4.2.3, 4.2.1, 4.1.3, 3.4.6

  - MacOS X ppc and x86

  - cygwin gcc 3.4.4 (debug only)

Not all ns-3 options are available on all platforms; consult the

wiki for more information: