Senthilkumar Subbiah Email & Phone Number

Bengaluru, Karnataka, India

Involved in Ethernet interface bring-up activities for a range of speeds (1G/2.5G/5G/10G/25G/50G/100G/200G) as an integral part of new board bring up which uses different ASIC/PHY chipset.Expertise in handling diverse transceiver modules, including Triple Speed/Single Speed 1G Copper SFPs, 10G Copper SFPs, and various DAC/Optical SFPs for 25G, 50G, and 200G from multiple vendors.Integration of new PHY drivers and firmware from different vendorsExpertised in the proprietary port manager module provided by a leading ASIC vendor.Actively engaged in bug fixing and the implementation of additional features related to Ethernet interfaces

Chennai, Tamil Nadu, India

Project: 8600 Smart routers AND Coriant NOS for Whitebox products Description:CNOS is Coriant Network operating system which runs on top of Bare metal switch/router hardware from Infinera DRX series and third party white boxes.Roles & Responsibilities: Along with individual technical contribution, played technical lead role for the following ethernet interface module features in white box products.o Line state delay featureo SW/HW based BCM interface link detectiono 1/10/25G (SFP28) hot pluggable transceiver supporto 100G QSFP28 hot pluggable transceiver supporto 200G CFP2 hot pluggable transceiver supporto Hot pluggable module support for 25G/100G/200G interface module.o 10/100/1G electrical SFP supporto Interface LEDs supporto Ethernet interface mac addresses allocation. Familiar with BCM QMX/QAX/Jericho+ link monitoring modules and MACOM APM phy driver modules. Familiar with ONL (Open Network Linux) APIs which controls interfaces in line cards. Involved in all reviews from the team and ensure the quality of the deliverables. Point of contact for all escalations on interface module features. Experienced in interacting with various stake holders such as HW manufacturers and Networking Chipset manufactures for various issues. Played scrum master role for the team. Responsible for sprint ceremonies – Planning, Closure, Retro, Metrics collection and responsible for the feature releases.

Chennai, Tamil Nadu, India

Project: AOS SustenanceProduct: Operating system for Alcatel-Lucent switchesClient : Alcatel-Lucent EnterpriseRole : Technical LeadRoles & Responsibilities: Analysis of Sustenance PRs (Problem Reports) in platform system software modules.  Provide code fixes/workaround/clarifications on various escalated and critical problem reports coming from the field at client site Handling queries on AOS switches/routers raised by peer team such as hardware team, customer support team at onsite and offshore Point of contact for all escalations on system software module.  Responsible for regression builds and software release Expertise in chassis based and stand-alone box based networking switch/router platform software – Chassis Supervision, NI supervision, Chassis version management, Ethernet driver, Power over Ethernet, Hardware supervision[Fan, Temp sensor, Power supply, SFP], Crash dump analysis, I2C, IPC Expertise in debugging layer-1 link issues Have interacted and worked together with the third-party (Switching Asic&Phy, Hardware, PoE chip) vendors. Experience in bringing up new board, involved in phy driver integration for the new board

Chennai, Tamil Nadu, India