author | Craig Dowell <craigdo@ee.washington.edu> |
Wed, 03 Sep 2008 11:38:18 -0700 | |
changeset 3593 | dfd634417b8d |
parent 3480 | a920df6b9f02 |
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ns-3 RELEASE NOTES |
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This file contains ns-3 release notes (most recent releases first). |
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Release 3.2 (pending) |
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===================== |
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New functionality added |
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----------------------- |
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- Add learning bridge (IEEE 802.1D) implementation: BridgeNetDevice; |
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- Python bindings added |
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- Kernel thread support (class SystemThread) added; |
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- Kernel mutual exclusion support (class SystemMutex) added; |
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- Kernel critical section RAII support (class CriticalSection) added; |
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- Kernel system condition support (class SystemCondition) added; |
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- Move required methods in helper classes to constructors; |
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- Change obsolete references to Parameter to Attribute in helpers; |
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- Split simulator into interface and implementation pieces, make |
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implementation a replaceable component via the |
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"SimulatorImplementationType" global value. |
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Hint: try ./waf --run "udp-echo --PrintGlobals" |
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- Added multithreaded and real-time simulator implementation; |
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- implement Packet::PeekHeader and Packet::PeekTrailer to avoid evil workarounds when receiving tcp packets. |
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Bugs fixed |
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---------- |
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- add optional support for TCP and UDP checksum (bug 236) |
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- close socket upon PacketSink::StopApplication (bug 243) |
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- fix build failure with gcc 4.3.x (bug 245) |
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API changes from 3.1 to 3.2 |
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--------------------------- |
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- several helper APIs related to attribute setting (changeset d5f8e5fae1c6, |
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bug 234); old variants are currently deprecated API and will be removed |
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in a future release |
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- remove references to Parameter in helper APIs (changeset 3cdd9d60f7c7, |
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bug 232); old variants are currently deprecated API and will be removed |
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in a future release |
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- New NetDevice APIs: SendFrom, SetPromiscRxCallback, |
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SupportsPromiscuous. These are pure virtual methods, so they need |
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to be implemented by NetDevice subclasses; |
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In order to support the learning bridge, some API changes in Node and |
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NetDevice were made. |
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In NetDevice, devices may optionally implement the virtual methods |
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SendFrom, SupportsPromiscuous, and SetPromiscReceiveCallback. If |
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these new methods are not implemented, the code still compiles and |
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works, except if they are used in a BridgeNetDevice. |
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In Node, the signature for protocol handler callbacks (used in |
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AddProtocolHandler) has changed. Now it looks like: |
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void ReceiveFromDevice (Ptr<NetDevice> device, Ptr<Packet> packet, |
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uint16_t protocol, Address const &source, Address const &destination, |
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PacketType packetType); |
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The extra parameters 'destination' and 'packetType' are present for |
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all protocol handlers, but only have valid values for promiscuous |
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protocol handlers. Protocol handlers are non-promiscuous by default, |
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so no action is needed to adapt existing code besides updating the |
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callback signature. |
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Release 3.1 (2008/06/30) |
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======================== |
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The first ns-3 stable release |
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----------------------------- |
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This release is immediately available from: |
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http://www.nsnam.org/releases/ns-3.1.tar.bz2 |
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We dedicate this initial ns-3 release to our late contributor and friend, |
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Federico Maguolo. |
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What is ns-3 ? |
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-------------- |
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ns-3 is a new discrete-event network simulator designed for supporting network |
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research and education. ns-3 features a solid, well documented C++ core and |
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models for TCP/IP (IPv4), several link types including WiFi, and mobility |
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models. |
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ns-3 is an open source project released under the GNU GPLv2 license which |
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allows anyone to use ns-3 without having to pay any license fee or royalties. |
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ns-3 is actively seeking new contributors to extend the range of supported |
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models and/or to maintain existing models. |
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Where to get more information about ns-3 |
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---------------------------------------- |
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All the ns-3 documentation, is accessible from the ns-3 website: |
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http://www.nsnam.org |
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Including, tutorials: |
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http://www.nsnam.org/tutorials.html |
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Supported platforms |
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------------------- |
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ns-3 is regularly tested on the following platforms: |
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- linux x86 gcc 4.2, 4.1, and, 3.4.6. |
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- linux x86_64 gcc 4.1.3, 4.2.1, 3.4.6 |
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- MacOS X ppc and x86 |
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- cygwin gcc 3.4.4 (debug only) |
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Known issues |
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------------ |
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ns-3 is known to fail on the following platforms: |
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- gcc 3.3 and earlier |
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- optimized builds on gcc 3.4.4 and 3.4.5 |
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- optimized builds on linux x86 gcc 4.0.x |
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The IPv4 API defined in src/node/ipv4.h is expected to undergo major changes |
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in preparation of the merge of the IPv6 API and implementation. |
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Future releases |
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--------------- |
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Our next release, which is expected to happen in 2 to 4 months from now, will |
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feature the merging of some of our projects currently in development: python |
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scripting, IPv6, emulation, a statistics framework and synchronous posix |
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sockets. |
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Release 3.0.13 (2008/06/02) |
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=========================== |
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- point to point links generate ppp pcap traces |
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- point to point links support asymmetrical data rates. |
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- generate doxygen documentation for all attributes and trace sources |
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- add ConfigStore and GtkConfigStore to contrib module |
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- socket API now support tx and rx buffers: implemented for UDP and TCP |
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- ARP cache now supports per-entry pending queues |
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- lots of bugfixes and implementation and API cleanups |
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Warning: among API changes in this release, Application::Start and |
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instead of absolute simulation time, to align with how Simulator::Schedule |
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behaves. Any code that calls these APIs in the middle of the simulation |
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will need to be adapted. |
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called Simulator::Stop (time), and takes a relative time, instead of |
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absolute. |
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Release 3.0.12 (2008/04/07) |
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=========================== |
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- Add Attribute support to the TypeId metadata system and add |
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attribute support to all in-tree models |
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- Add a mid-level helper API to build simulation topologies |
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and perform simple ascii and pcap link-level tracing. |
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- Large amount of structural changes to accomodate the needs |
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of the upcoming python bindings |
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- new rate control algorithm (RRAA) and a jakes propagation model |
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in the 802.11 model (Federico Maguolo). |
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- regression test framework added |
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- TCP delayed acknowledgements and multitasking server |
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Release 3.0.11 (2008/02/15) |
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=========================== |
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- Initial port of GTNetS TCP implementation (initial version |
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that does not support multitasking or delayed acknowledgments yet, |
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but supports a reliable stream service) |
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- Changes to the ns-3 object model to create a TypeId-based |
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metadata system |
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- lots of bug fixes throughout the system |
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- tutorial updates |
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Release 3.0.10 (2008/01/15) |
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=========================== |
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- Add tutorial document content; |
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- Valgrind option for "waf" tool; |
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- Doxygen organization changes. |
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Release 3.0.9 (2007/12/15) |
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========================== |
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- A 802.11 model ported from Yans. This model supports: |
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* a rather extensive PHY model |
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* log-distance and friis propagation model |
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* a simple set of rate control algorithms (ARF, Ideal, |
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AARF, constant-rate) |
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* adhoc and infrastructure mode (beacon+assoc) |
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- Use smart pointer for Packet in the APIs |
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- A new contrib directory with helper classes: |
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EventGarbageCollector, Gnuplot |
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- Tracing support for Applications |
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- many bugs fixed |
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|
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Release 3.0.8 (2007/11/15) |
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========================== |
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- A simple error model |
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- Source files for ns-3 tutorial |
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||
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Release 3.0.7 (2007/10/15) |
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========================== |
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- OLSR routing protocol |
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- A timer class |
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- Additional mobility models (random waypoint, random 2D walk) |
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- A mobility visualization tool |
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Release 3.0.6 (2007/09/15) |
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========================== |
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- Static multicast IPv4 routing |
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- Logging overhaul (NS_LOG macros) |
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- Refactoring of tracing subsystem |
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- Tutorial document started |
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Release 3.0.5 (2007/08/15) |
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========================== |
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- Refactoring to support win32-based unix environments (Cygwin, mingw) |
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- "Packet socket" for allowing applications to access NetDevices directly |
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- Generalized, polymorphic Address class |
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- Add CSMA NetDevice model (from Emmanuelle Laprise) |
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- Modularize IPv4 routing support (from Gustavo Carneiro) |
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- Add mobility framework and basic mobility models |
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- Global unicast centralized routing |
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Release 3.0.4 (2007/07/15) |
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========================== |
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|
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- Enable waf as the default build system. |
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- Per-packet metadata: a system to track which headers and trailers |
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are added to a packet |
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- Simplifications to point-to-point devices and channel |
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Release 3.0.3 (2007/06/15) |
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========================== |
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|
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- Enable Waf for release tarballs: users can now build ns-3 |
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with the "waf" tool. See doc/build-waf.txt. |
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- Add support for variable time precision: it is now possible |
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to run a simulation with an accuracy which is higher or lower |
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than a nanosecond: seconds, milliseconds, microseconds, |
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femtoseconds and picoseconds are supported. |
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- Optimize and rework the COM framework, solidify the component |
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manager |
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- Many small API cleanups |
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Release 3.0.2 (2007/05/18) |
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========================== |
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|
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- Implement a new memory management infrastructure based |
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on reference counting and smart pointers (the latter being |
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optional) |
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|
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- Implement a COM-like framework with support for QueryInterface |
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to provide object extensibility |
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- Add support for a BSD-style socket API for user applications |
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Release 3.0.1 (2007/03/31) |
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========================== |
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- First public release; not yet pre-alpha. |
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||
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- Simple UDP-based simulation script (examples/simple-p2p.cc) |