Praveen Kejriwal
Senior Principal System Engineer @Ciena
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WORK HISTORY
Senior Principal System Engineer @Ciena
San Jose, CA, US
Core member of System Architecture team and responsible for Ciena\'s SAOS(Service Aware Operating System) 10.x NOS overall system architecture.Primary Focus : Linux Kernel and Networking, Packet Processing(Control Plane and Hardware), IP Routing (IGP, BGP), MPLS Forwarding(Service and Transport), High Availability, Scale, Performance, Security and Handling Customer Escalation.
EDUCATION
Visvesvaraya Technological University, Bangalore
Bachelor of Engineering (B.E.), Electronics and Communication
DAV Public School, Dhanbad
Higher Secondary, Science
SKILLS
ABOUT PRAVEEN KEJRIWAL
14+ years of experience in embedded software design, development and sustenance of networking and telecom products using C/C++ and Linux/RTOS (VxWorks) in both Agile and Waterfall project model.• Extensive working experience in packet forwarding architecture in MPLS and IP domain.• Extensive working experience in docker/container virtualized environment. • Extensively worked on L2/L3, Ethernet, Unicast and Multicast Routing protocols.• Working experience in Linux Networking stack, Netlink sockets, Process & Threads.• Expertise in debugging complex network system and topology including Control Plane, Data Plane and Broadcom based Hardware.• Extensively worked in Tunneling protocols like MPLS, LDP, MP-BGP, GRE & GRETAP.• Extensively worked on routing protocols like BGP, ISIS, OSPF & RIP and neighbor discovery protocol like ARP and ND.• Proficient in L2/L3 QOS marking,QOS Concepts, High Availability and Memory Management.• Expertise in debugging and analyzing the switch crash/core file, stack analysis using GNU debugger including assembly code analysis of PowerPC based Chipset and Intel Chipset.• Experience in chassis manager, Port Manager, CP to Line card communication & network packet processor architecture.• Extensive working experience in Chassis based Switches/Routers of Nortel/Avaya (ERS 8600,8300), Calix Multi Chassis Access and Aggregation Devices for NGPON-2 (E3, E9) with BNG and Routing.Skill Summary:Operating System: Linux, VxWorks, WindowsProgramming Languages: C, C++, Pro*CScripting Languages: Shell, Expect, GDB Scripts, PythonDevelopment Tools: Cscope, Coverity, Valgrind, GNU Debugger, GNS3 Simulator(Cisco IOS)Hardware: PowerPC family(MPC85XX, MPC740, MPC7445), Broadcom Chipset(BCM56960 Tomahawk), Mac Chip(Intel, Redhawk, Ample Eagle)Version Control Tool: Git, Clear-case, CMSNetworking Protocols: TCP/IP, UDP, STP, VLAN, 802.1Q, ICMP, ARP, VRRP, BGP, OSPF, RIP, DHCP, SPBM (Mac-in-Mac), IS-IS, IPv4/IPv6, QOS.MPLS Protocols: LDP, GMPLS, BGP-LUTechnologies: L3VPN, 6PEStack: IP Infusion (ZebOS), Metaswitch, Phase2, InfinityDatabase: Oracle 9i, RedisTesting Aid Tools : Ethereal, WireShark, Tcpdump, IXIA, Spirent, SmartbitsDefect Tracking Tools : ClearQuest, Jira
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