Jonathan Hui
da7a103401
This commit implements the BBR-TC-02 test case in the Nexus simulation
framework to verify that if two BBR Datasets are present in a network,
the Backbone Router (BBR) that is not elected as Primary will delete
its own BBR Dataset from the Network Data.
Key implementation details include:
- Implementation of BBR-TC-02 in C++ simulating a topology with two
Border Routers (BR_1 as DUT/initial Primary, BR_2) and a Thread
Router as Leader.
- Verification of BR_1's role switch from Primary to Secondary when it
detects a BBR Dataset with a higher sequence number (BR_2's dataset).
- Verification that BR_1 sends a Server Data notification to the Leader
to remove its BBR Dataset upon switching to the Secondary role.
- Verification that BR_1 (as Secondary BBR) correctly rejects MLR.req
messages with ST_MLR_BBR_NOT_PRIMARY.
- Verification that BR_1 automatically resumes the Primary BBR role
and becomes Leader when Router_1 and BR_2 are removed from the
network.
- Addition of a Python verification script to validate:
- Correct sequence of SVR_DATA.ntf CoAP requests for BBR Dataset
registration and removal.
- Correct handling of MLR.req with ST_MLR_BBR_NOT_PRIMARY error.
- Correct filtering of Thread Network Data TLVs in CoAP payloads.
- Inclusion of the full test specification as inline comments in both
the C++ and Python files.
- Use of direct core method calls in C++ and adherence to strict
formatting rules in both files.
- Registration of the new test case in tests/nexus/CMakeLists.txt and
tests/nexus/run_nexus_tests.sh.
What is OpenThread?
OpenThread released by Google is... 
...an open-source implementation of the Thread networking protocol. Google Nest has released OpenThread to make the technology used in Nest products more broadly available to developers to accelerate the development of products for the connected home.
...OS and platform agnostic, with a narrow platform abstraction layer and a small memory footprint, making it highly portable. It supports both system-on-chip (SoC) and network co-processor (NCP) designs.
...a Thread Certified Component, implementing all features defined in the Thread 1.4.0 specification, including all Thread networking layers (IPv6, 6LoWPAN, IEEE 802.15.4 with MAC security, Mesh Link Establishment, Mesh Routing) and device roles, as well as Border Router support.
More information about Thread can be found at threadgroup.org. Thread is a registered trademark of the Thread Group, Inc.
Who supports OpenThread?
Getting started
All end-user documentation and guides are located at openthread.io. If you're looking to do things like...
- Learn more about OpenThread features and enhancements
- Use OpenThread in your products
- Learn how to build and configure a Thread network
- Port OpenThread to a new platform
- Build an application on top of OpenThread
- Certify a product using OpenThread
...then openthread.io is the place for you.
Note: For users in China, end-user documentation is available at openthread.google.cn.
If you're interested in contributing to OpenThread, read on.
Contributing
We would love for you to contribute to OpenThread and help make it even better than it is today! See our Contributing Guidelines for more information.
Contributors are required to abide by our Code of Conduct and Coding Conventions and Style Guide.
License
OpenThread is released under the BSD 3-Clause license. See the LICENSE file for more information.
Please only use the OpenThread name and marks when accurately referencing this software distribution. Do not use the marks in a way that suggests you are endorsed by or otherwise affiliated with Nest, Google, or The Thread Group.
Need help?
OpenThread support is available on GitHub:
- Bugs and feature requests — submit to the Issue Tracker
- Community Discussion - ask questions, share ideas, and engage with other community members