sonic-net/sonic-mgmt
May 2025 – Feb 2026
7 Months active
Languages Used
PythonYAML
Technical Skills
Fixture ManagementNetwork TestingTest AutomationNetwork Device TestingPython ScriptingAnsible
Yan Mo
PROFILE
Yan Mo
Andy Mo worked on expanding and stabilizing IPv6 test automation within the sonic-net/sonic-mgmt repository, focusing on robust network device validation and CI reliability. He developed and enhanced test suites for VLAN, BGP, and port-channel scenarios, introducing IPv6-only and dual-stack support while ensuring conditional skipping of unsupported IPv4 tests. Using Python, Ansible, and YAML, Andy implemented utilities for topology detection, automated ASCII output validation, and streamlined test logic to reduce maintenance overhead. His work improved test coverage, reduced flaky failures, and enabled production-like validation for IPv6 deployments, demonstrating depth in network programming, test automation, and cross-environment reliability.
Overall Statistics
Feature vs Bugs
56%Features
Repository Contributions
17Total
Bugs
4
Commits
17
Features
5
Lines of code
1,672
Activity Months7
Work History
February 2026
4 Commits • 1 Features
Feb 1, 2026February 2026 monthly summary for sonic-mgmt focusing on IPv6 coverage expansion and test-logic cleanup. Delivered IPv6-only topology test capabilities across critical routing and port-channel tests, and streamlined test suite by removing redundant xfail logic to improve clarity and maintenance. All work is aligned with increasing confidence in IPv6 deployments and reducing regression risk in production environments.
4 Commits • 1 Features
Feb 1, 2026February 2026 monthly summary for sonic-mgmt focusing on IPv6 coverage expansion and test-logic cleanup. Delivered IPv6-only topology test capabilities across critical routing and port-channel tests, and streamlined test suite by removing redundant xfail logic to improve clarity and maintenance. All work is aligned with increasing confidence in IPv6 deployments and reducing regression risk in production environments.
February 2026
November 2025
1 Commits • 1 Features
Nov 1, 2025Month: 2025-11 | sonic-mgmt (sonic-net/sonic-mgmt) IPv6/dual-stack testing enhancements. Key feature delivered: IPv6-only support added to vlan_ping to enable IPv4/IPv6 dual-stack testing and proper handling of IPv6 addresses across functions and tests. Commit reference: e2e5c334f4e1fb4718ad3ef54058fdac18bde00b (Added ipv6-only support to vlan_ping (#21018)). Impact: expands end-to-end IPv6 testing coverage, improves reliability for dual-stack deployments, and reduces risk in IPv6 configurations across the codebase. Technologies/skills demonstrated: IPv6 networking, test automation, VLAN testing, cross-function coordination, Git-based workflow, and review/validation processes.
November 2025
1 Commits • 1 Features
Nov 1, 2025Month: 2025-11 | sonic-mgmt (sonic-net/sonic-mgmt) IPv6/dual-stack testing enhancements. Key feature delivered: IPv6-only support added to vlan_ping to enable IPv4/IPv6 dual-stack testing and proper handling of IPv6 addresses across functions and tests. Commit reference: e2e5c334f4e1fb4718ad3ef54058fdac18bde00b (Added ipv6-only support to vlan_ping (#21018)). Impact: expands end-to-end IPv6 testing coverage, improves reliability for dual-stack deployments, and reduces risk in IPv6 configurations across the codebase. Technologies/skills demonstrated: IPv6 networking, test automation, VLAN testing, cross-function coordination, Git-based workflow, and review/validation processes.
October 2025
4 Commits • 1 Features
Oct 1, 2025In 2025-10, focused on expanding IPv6 support for the sonic-mgmt testing suite and improving test reliability across IPv6-only environments. Delivered IPv6-enabled VLAN tests and reliability improvements that reduce flaky failures and broaden IPv6 coverage, accelerating validation for IPv6-ready network configurations across CI.
4 Commits • 1 Features
Oct 1, 2025In 2025-10, focused on expanding IPv6 support for the sonic-mgmt testing suite and improving test reliability across IPv6-only environments. Delivered IPv6-enabled VLAN tests and reliability improvements that reduce flaky failures and broaden IPv6 coverage, accelerating validation for IPv6-ready network configurations across CI.
October 2025
August 2025
4 Commits
Aug 1, 2025Month: 2025-08 — Focused on stabilizing IPv6-only topology tests in sonic-mgmt. Delivered conditional IPv4 test skipping and topology-detection utilities to ensure reliability across IPv6-only and mixed networks. Key changes include adding is_ipv6_only_topology utilities and applying skip/xfail markers to IPv4-related tests. Commits: 03f3389d826f6e52f0920ce5dac149809b47ea14; caf5f1a93fbff73dfdfa446736ab0e788c3ad07b; 1c78bfdd7015e3180a350aa079c5cc1c704e3d02; a3dca6a3d1f6b0a12c3896f411425eb7220c1e11. Result: improved stability and reduced flaky failures in CI; supports IPv6 deployment validation; strengthens test coverage while avoiding redundant IPv4 tests in IPv6-only topologies.
August 2025
4 Commits
Aug 1, 2025Month: 2025-08 — Focused on stabilizing IPv6-only topology tests in sonic-mgmt. Delivered conditional IPv4 test skipping and topology-detection utilities to ensure reliability across IPv6-only and mixed networks. Key changes include adding is_ipv6_only_topology utilities and applying skip/xfail markers to IPv4-related tests. Commits: 03f3389d826f6e52f0920ce5dac149809b47ea14; caf5f1a93fbff73dfdfa446736ab0e788c3ad07b; 1c78bfdd7015e3180a350aa079c5cc1c704e3d02; a3dca6a3d1f6b0a12c3896f411425eb7220c1e11. Result: improved stability and reduced flaky failures in CI; supports IPv6 deployment validation; strengthens test coverage while avoiding redundant IPv4 tests in IPv6-only topologies.
July 2025
2 Commits • 1 Features
Jul 1, 2025July 2025: Delivered IPv6 testbed support and testing enhancements for sonic-mgmt, enabling pretesting, improved IPv6 validation, and broader test coverage to reduce release risk in IPv6 deployments. Implemented ASN increment for IPv6 BGP configurations and introduced a new Ansible module to retrieve IPv6 interface information, with fixtures to validate IPv6 addresses.
2 Commits • 1 Features
Jul 1, 2025July 2025: Delivered IPv6 testbed support and testing enhancements for sonic-mgmt, enabling pretesting, improved IPv6 validation, and broader test coverage to reduce release risk in IPv6 deployments. Implemented ASN increment for IPv6 BGP configurations and introduced a new Ansible module to retrieve IPv6 interface information, with fixtures to validate IPv6 addresses.
July 2025
June 2025
1 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary: Focused on improving console reliability and test coverage in sonic-mgmt. Delivered a Console ASCII Output Stability Test that validates that DUT console output remains strictly ASCII by executing a predefined command set multiple times and checking for non-ASCII characters. This reduces encoding-related failures and strengthens configuration correctness in automated workflows. The work reduces risk of data corruption during device interactions and improves CI confidence in CLI stability.
June 2025
1 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary: Focused on improving console reliability and test coverage in sonic-mgmt. Delivered a Console ASCII Output Stability Test that validates that DUT console output remains strictly ASCII by executing a predefined command set multiple times and checking for non-ASCII characters. This reduces encoding-related failures and strengthens configuration correctness in automated workflows. The work reduces risk of data corruption during device interactions and improves CI confidence in CLI stability.
May 2025
1 Commits
May 1, 2025May 2025: Sonic-mgmt test suite stabilization focused on portchannel scenarios. Implemented a graceful skip in the prepare_test_port fixture when mg_facts['minigraph_portchannels'] is empty, preventing failures when no portchannels are configured and improving CI reliability.
1 Commits
May 1, 2025May 2025: Sonic-mgmt test suite stabilization focused on portchannel scenarios. Implemented a graceful skip in the prepare_test_port fixture when mg_facts['minigraph_portchannels'] is empty, preventing failures when no portchannels are configured and improving CI reliability.
May 2025
Activity
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Quality Metrics
Correctness92.4%
Maintainability87.0%
Architecture84.8%
Performance84.8%
AI Usage21.2%
Skills & Technologies
Programming Languages
PythonYAML
Technical Skills
AnsibleBGPBGP ConfigurationCI/CDFixture ManagementIPv6IPv6 NetworkingNetwork AutomationNetwork Device TestingNetwork TestingPythonPython ScriptingPython scriptingTest AutomationTesting
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