sonic-net/sonic-mgmt
Sep 2025 – Oct 2025
2 Months active
Languages Used
Python
Technical Skills
Network TestingPython ScriptingTest AutomationBGP ConfigurationNetwork Device Management
markxiao
PROFILE
Markxiao
Mark Xiao focused on stability and reliability improvements across the sonic-net/sonic-mgmt, FRRouting/frr, and sonic-net/sonic-buildimage repositories, addressing complex issues in network test automation and routing infrastructure. He resolved race conditions in FRR’s zebra module using C, preventing BGP neighbor downtime and interface assertion failures. In sonic-mgmt, Mark standardized COPP rate limiting and enhanced test consistency by refining Python-based test automation, including randomizing interface IPs to reduce flakiness. His work involved deep debugging, kernel development, and network device management, resulting in more deterministic CI behavior and robust cross-topology testing. These contributions demonstrated strong technical depth and practical problem-solving.
Overall Statistics
Feature vs Bugs
0%Features
Repository Contributions
5Total
Bugs
5
Commits
5
Features
0
Lines of code
67
Activity Months2
Your Network
296 people
Work History
October 2025
4 Commits
Oct 1, 2025October 2025: Key stability and reliability improvements across FRRouting (FRR), Sonic test infrastructure, and build tooling, focused on reducing unplanned downtime, accelerating validation cycles, and improving CI reliability. Deliverables centered on robust interface management, deterministic test behavior on complex topologies, and safeguard changes to COPP-heavy scenarios.
4 Commits
Oct 1, 2025October 2025: Key stability and reliability improvements across FRRouting (FRR), Sonic test infrastructure, and build tooling, focused on reducing unplanned downtime, accelerating validation cycles, and improving CI reliability. Deliverables centered on robust interface management, deterministic test behavior on complex topologies, and safeguard changes to COPP-heavy scenarios.
October 2025
September 2025
1 Commits
Sep 1, 2025September 2025 monthly summary for sonic-net/sonic-mgmt: Delivered a stability-focused fix to standardize COPP rate limiting across test topologies and verified through end-to-end tests, strengthening CI reliability and cross-topology consistency. Key deliverables included updating PPS_LIMIT to 300 on the m1 topology to align with m0/mx for DHCP, DHCP6, LLDP, and UDLD tests; the change is implemented in commit 8a80b769d9eb67e0ff028753c6c5b67bb9619c0a (Set PPS_LIMIT to 300 on LLDP/UDLD/DHCP COPP test for m1 topology (#20434)); Verified by running test_copp.py for m1 topologies.
September 2025
1 Commits
Sep 1, 2025September 2025 monthly summary for sonic-net/sonic-mgmt: Delivered a stability-focused fix to standardize COPP rate limiting across test topologies and verified through end-to-end tests, strengthening CI reliability and cross-topology consistency. Key deliverables included updating PPS_LIMIT to 300 on the m1 topology to align with m0/mx for DHCP, DHCP6, LLDP, and UDLD tests; the change is implemented in commit 8a80b769d9eb67e0ff028753c6c5b67bb9619c0a (Set PPS_LIMIT to 300 on LLDP/UDLD/DHCP COPP test for m1 topology (#20434)); Verified by running test_copp.py for m1 topologies.
Activity
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Quality Metrics
Correctness86.0%
Maintainability84.0%
Architecture72.0%
Performance72.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
CPython
Technical Skills
BGP ConfigurationBug FixC ProgrammingDebuggingKernel DevelopmentNetwork Device ManagementNetwork ProgrammingNetwork RoutingNetwork TestingPython ScriptingRace Condition HandlingTest Automation
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline
FRRouting/frr
Oct 2025 – Oct 2025
1 Month active
Languages Used
C
Technical Skills
DebuggingKernel DevelopmentNetwork ProgrammingRace Condition Handling
sonic-net/sonic-buildimage
Oct 2025 – Oct 2025
1 Month active
Languages Used
C
Technical Skills
Bug FixC ProgrammingNetwork Routing