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NeST RELEASE NOTES

This file contains NeST release notes (most recent release first).

Release 0.4.4 (Jan 5, 2024)

If available, the numbers below mark the issue numbers on GitLab (prefixed by '#'), or GitLab merge request number (prefixed by '!').

New user-visible features

  • !305: Added MPTCP functionality
  • !312, !328, #267, #268, #271: Enabling video streaming (MPEG-DASH) support
  • !329: Added SIP emulation support

Bugs fixed

  • !321: Dockerfile refactoring with no-cache
  • !327: Deprecating Quagga, MPLS Support and update base image version in Dockerfile

_ !333, #273: Replace Lock with RLock to avoid read race condition in TopologyMap _ !338: Fix NeST pipeline, setting XDG_RUNTIME_DIR environment

Release 0.4.3 (Oct 29, 2023)

If available, the numbers below mark the issue numbers on GitLab (prefixed by '#'), or GitLab merge request number (prefixed by '!').

New user-visible features

  • !309: Added ARP functionality
  • !310: Added new DCTCP examples

Bugs fixed

  • !315, !317: Load seaborn-paper style from custom file

Release 0.4.2 (Jun 03, 2023)

If available, the numbers below mark the issue numbers on GitLab (prefixed by '#'), or GitLab merge request number (prefixed by '!').

New user-visible features

  • !153, !296: Added support for CoAP simulation
  • !154: Added support for multiple IPv4 and IPv6 addresses in interfaces
  • !156: Added support for setting TCP module parameters
  • !199: Added API to set duplicate packets
  • !219: Added iperf3 server options in Experiment API
  • !222: Added preload option in ping API
  • !225: Ensure dynamic routing works correctly with multiple ip addresses on interface
  • !231: Added packet-reordering API
  • !243: Added support for static routing
  • !246: Added delay distribution API
  • !250: Redesigned TopologyMap and made it thread-safe
  • !254: Added APIs to enable/disable network interfaces dynamically
  • !257: Added support for adding IP address to Switch
  • !270: Added support for BIRD routing suite
  • !280, !281, !282, !297, !298, !299, !311: Improved existing examples and added new example programs
  • !284: Added Iperf3 support in TCP flows

Bugs fixed

  • !245: Fixed issue with duplicate IP forwarding
  • !255: Ensure Qdisc names are validated correctly
  • !264: Ensure TCP algorithm names are validated correctly
  • !293: Fixed FRR Zebra removing previously installed mulitaddress routes
  • !303, #255: Fixed pcap file creation in capture_packets API

Release 0.4.1 (Mar 14, 2022)

If available, the numbers below mark the issue numbers on GitLab (prefixed by '#'), or GitLab merge request number (prefixed by '!').

New user-visible features

  • !213: Handled keyboard interrupts during experiment run gracefully.
  • !214: Added example program for TCP Reno.
  • !203: Added example programs for queue disciplines.
  • !218: Added example program to demonstrate TRACE level log.

Bugs fixed

  • !211: Correctly set the bandwidth at the IFB device.

Release 0.4 (Feb 15, 2022)

If available, the numbers below mark the issue numbers on GitLab (prefixed by '#'), or GitLab merge request number (prefixed by '!').

New user-visible features

  • !121: Added option to enable/disable offloads on interfaces.
  • !123: Added support for Address Helper.
  • !114: Added support for Switch.
  • !135: Added experiment progress bar.
  • !133: Uploaded nest docker image to docker hub.
  • !144: Improved X and Y axis labels in the plots.
  • !163: Added Router API with IPv4 and IPv6 forwarding enabled by default.
  • !181: Added destination node name in plot labels and file names.
  • !190: Improved routing helper to consider nodes with one interface as hosts (by default).
  • !186: Removed hierarchy from config file, making it simpler to understand.
  • #143: Restructured the examples directory and respective documentation.
  • !177: Updated ping to output packet information in real-time.
  • !197: Added input validation for commonly used NeST APIs.

Bugs fixed

  • !119: Fixed erroneous filtering of duplicate logs.
  • !173: Fixed log_level property not being set from config file.
  • !182: Empty files are not created in experiment dump.
  • !184: Fixed API breakage in LDP routing.

Release 0.3 (Apr 1, 2021)

If available, the numbers below mark the issue numbers on GitLab (prefixed by '#'), or GitLab merge request number (prefixed by '!').

New user-visible features

  • !49: Added FRR routing suite option
  • !59, !64, !86: Added IPv6 support
  • !60: Added MPLS support with static routing
  • !78: Added support for Ldp dynamic routing protocol using frrouting
  • !65: Added packet corruption and packet loss features
  • !61: Added support for running command "inside" a node
  • !79: Added support for quagga and frr logs in nest
  • !63: Added User and Developer Guide in Documentation.
  • !93: Completed support for UDP (Iperf3 flows are parsed and plotted)
  • !96: Added support for config files

Bugs fixed

  • !44, !48: Loopback set up
  • !47: Importing multiple config for multiple modules through a file made possible
  • !51: Errors messages added for long interface names
  • !92: Fixed logging error in config
  • !94: Check python version in old pip version
  • !100: Added log level "TRACE" to trace the iproute2 commands run.
  • !91: Cleanup executed on exit from python IDE.
  • !88: Fixed incorrect implementation of start and stop time of netperf flows.
  • !82: Fixed bug in isis config file creation.

Release 0.2.1 (Dec 13, 2020)

If available, the numbers below mark the issue numbers on GitLab (prefixed by '#'), or GitLab merge request number (prefixed by '!').

New user-visible features

  • !39: Added isis support in Quagga

Bugs fixed

  • !25: In v0.2, there was an error in parsing stats from ss tool. This has been addressed in !25.
  • !35: Use agg backend for matplotlib. This is specifically for plotting graphs into files.
  • !31: Config value was being stored locally in a variable. This has been fixed.
  • #71: Fix Quagga issues in Arch.

Other issues addressed

  • !26: Add an unit test for experiment module. This improves test coverage from 55% to 71%.

Release 0.2 (Nov 03, 2020)

New user-visible features

  • Added support for Dynamic routing (using Quagga).
  • Added support for configuring NeST APIs.
  • Plots generated made clearer by including parameter units.
  • tc (traffic control) qdisc stats can be parsed for iproute2 version above 5.4.
  • Logging support has been added for cleaner output from NeST.

Bugs fixed

If available, the numbers below mark the issue numbers on GitLab (prefixed by '#').

  • #55: Routing error in examples/dumbbell.py has been fixed.
  • #40: delivery_rate and pacing_rate from ss are converted to one unit (Mbits) for plotting.
  • #31: Resolved errors in Address management.
  • #57: Handle different version formats of iproute2 correctly.

Release 0.1 (Jul 30, 2020)

  • First beta release

New user-visible features

  • Python APIs to create and manage network namespaces.
  • APIs to add interfaces to network namespaces.
  • APIs to handle address management and routing between network namespaces.
  • APIs to add queuing disciplines to interfaces.
  • APIs to run experiments on the built "virtual" topologies
  • Support for parsing output from tools such as Netperf, ss, tc and ping.
  • Create plots of statistics collected during experiment runs.