# Purushothaman Nandakumaran

> Software Engineer at Nexthop AI

Location: Milpitas, California, United States
Profile: https://flows.cv/purushothaman

•	Software architecture and design knowledge of Layer 2 / Layer 3 Ethernet switch/routers
•	Strong knowledge of distributed network systems. Worked on multiple components of FTOS for Dell Force10 Exascale E series platform and Dell Force10 C series chassis.
•	Strong development and working knowledge on different Layer 2 protocols – VLAN (802.1Q), GARP, GVRP, GMRP, LA (802.3ad), RSTP, MSTP, PNAC (802.1x), IGMP Snooping, ECFM (802.1ag), Bridge Port Extenders (802.1BR), FRRP, IGMP Snooping, MultiChassis LAGs(VLT)
•	IP protocols – Ipv4, BOOTP/TFTP, RIP, TCP/UDP, VRRP
•	Network Management/Configuration - SNMP, CLI
•	Traffic Engineering - Dot1p, Control traffic prioritization and QoS. Designed and implemented the complete control traffic prioritization for Force10 Exascale E series.
•	Security – PNAC (802.1x), ACL
•	Ported FTOS for different platforms and FutureSoftware Intelligent switch solutions to multiple ASICs  including- Broadcom (BCM56840/50, BCM 56634/8, BCM 5690, BCM 5695, BCM 5615, BCM 5616, BCM 5675, BCM 5651, BCM 5389 and BCM 56502/4), Force10 Exascale X3 
•	Designed and implemented multi chassis lags on FTOS (Virtual scale multi chassis LAGs and Virtual Link Trunking)
•	Lead the team to port FTOS on DELL Force10 S series platforms (S50, S25 etc). Coordinated, designed and implemented multiple features on S series platform. 
•	Worked on multiple device drivers (CPLD, FPGA and other wrapper devices for BCM) of FTOS for different platforms. 
•	Strong debugging knowledge of network and system issue.
•	Good knowledge of other infrastructure modules in the system like IPC, Interface manager, Interface agent, Chassis manager, Event handling, Trace manager etc.
•	Good knowledge on kernel IP stack (netbsd) and packet processing for different protocols.

## Work Experience
### Software Engineer @ Nexthop AI
Jan 2025 – Present | Santa Clara, California, United States

### Software Engineer @ Arista Networks, Inc.
Jan 2013 – Jan 2025 | Santa Clara

### Sr Staff Engineer @ Force10 Networks
Jan 2008 – Jan 2013
Porting L2 software for BCM platform, porting FTOS on S Series platform, Control traffic prioritization for exascale, 802.1ag (ECFM), 802.1BR, Debugging customer issues, understanding requirements for new features, design and implementation of them.

### Network Development Principal Engineer @ Dell
Jan 2006 – Jan 2013

### MTS @ Force 10 Networks
Jan 2006 – Jan 2008
Porting L2 software for BCM platform, porting FTOS on S Series platform, Control traffic prioritization for exascale, 802.1ag (ECFM), 802.1BR, Debugging customer issues, understanding requirements for new features, design and implementation of them.

### Senior Tech Lead @ Flextronics Software Systems
Jan 1999 – Jan 2006
VLAN, LACP, GVRP/GMRP, STP, RSTP, MSTP, porting the software for various platforms including BCM, leading the team for developing new features

### Senior Technical Leader @ Future Software
Jan 1999 – Jan 2006

### Technical Lead @ Future software (Now Aricent)
Jan 1999 – Jan 2006

### Engineering Project Manager @ Aricent
Jan 1999 – Jan 2006


## Education
### Bachelor of Engineering (B.E.) in Computer Science
Anna University Chennai

### Bachelor of Engineering (B.E.) in Computer Science
College of Engineering, Guindy


## Contact & Social
- LinkedIn: https://linkedin.com/in/purushothaman-nandakumaran-2852a82

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Source: https://flows.cv/purushothaman
JSON Resume: https://flows.cv/purushothaman/resume.json
Last updated: 2026-04-11