Vinay Kumar Kayyur

About Vinay Kumar Kayyur

Results-driven & seasoned professional with experience of over 2 decades in…

Experience

1. Software Consulting Engineer (through Happiest Minds Technologies)

   Cisco

   Feb 2025 — Present · Bengaluru, IN

   L2 Forwarding Enhancements – Nexus 9k (HyperScaler DataCenter)i. Worked on defects and minor enhancements across various Silicon One chipsets, supporting features like vPC, HSRPv4/v6, VRRP, and VRRP3.ii. Supported writing UT-IT testcases for inter-subnet routing between L3 ports, L3–SVI interfaces, and SVI–SVI Ported fixes from the main branch to multiple release branches after thorough unit testing and sanity checks.2. Debugging & Validationi. Analyzed and resolved L2 sanity run failures.ii. Modified configuration validation for user-defined MACs (SVI, PO, Sub-If, Phy-If) and FHRP MACs based on supported hardware limits.3. Control Plane Optimizationi. Streamlined redundant hardware setting flows for user-defined MACs in vPC, SVI, HSRP, and VRRP scenarios.ii. Assisted the HSRP team in resolving MAC validation and error-handling issues for both IPv4 and IPv6 sessions.4. Testing & QA Supporti. Fixed multiple static analysis errors.ii. Supported QA with Snake testing by enhancing debug commands to extend MAC configuration limits beyond default Optimized the MAC Consistency Checker command for improved performance.5. Collaboration & Mentorshipi. Conducted code reviews for Cisco team members, offering critical feedback.ii. Mentored junior engineers at Cisco and Happiest Minds, guiding them through assigned tasks and technical challenges.6. Defect Identificationi. Raised defects for various issues including crashes discovered during reproduction and functional validation efforts.

Education

• NMAMIT

  Bachelor Of Engineering

  1999 — 2003

Skills

• Testing
• Switches
• Cvs
• Operating Systems
• Debugging
• Linux
• Oracle
• Embedded Systems
• Sdlc
• Unix
• Clearcase
• Java