Vinay's_profile
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Vinay Tripathi has over 13 years of experience in software development for network and telecom products. He currently works as a Senior Technical Architect at HCL Technologies in Bangalore. Some of his areas of expertise include datacom devices, broadband routers, IP phones, video conferencing, DOCSIS standards, Wi-Fi, routing protocols, Linux, and network security. He has extensive experience leading projects for clients such as Ericsson, Cisco, Technicolor, and Broadcom.
Vinay's_profile
- 1. Vinay Tripathi ___________________________________________________________________ Professional Summary Overall about 13+ years of experience in core Software development of network and telecom products. Currently working at HCL TECHNOLOGIES Bangalore, as a Senior Technical Architect The Major involvement in requirement gathering, analysis , design, development, testing , debugging and deployment Hands on experience in development of Datacom Devices (Edge Router, Access edge router, switches ), Broadband residential router’s (Wi-Fi VOIP Cable Modem with Wi-Fi and VOIP , EMTA, ADSL/VDSL) , IP Phone and Video conferencing devices Good development exposer in DOCSIS 2.0 3.0 and packet cable 1.5 and 2.0 Good development exposer in Wi-Fi 802.11G/N stack and feature like Hotspot , WPS Good experience in layer2 and layer3 packet forwarding as well as control protocols. Good experience in Ericsson packet processor ASIC PPA2/PPA3 and Broadcom PetraB Started contribution toward SDN/NFV OpenDayLight. Hands on experience in subscriber WAN protocols PPP, PPPOE, PPPOA, L2TP(LNS, LNC), DHCP/DHCPv6 Good development exposer on Layer2 (DOT1Q, Q-in-Q, L2VPN, STP, CDP, LLDP, MPLS, LAG) Good experience in Linux kernel NET-FILTER (IPTABLE, CONN-TRACK , SNAT, DNAT, REDIRECT, MANGLE, Pre/Post Routing ) Good development exposer in Layer 3 Unicast ( RIPv2, OSPFV2, BGP, ICMP), Multicast (IGMPv2/V3 ) Good development experience in Ethernet OAM (802.3AH, 802.1AG, ITU 1731 ) Good development experience in ACL and QOS (Policing ,metering and scheduling queues ) Good development experience in remote management protocols like SNMPv2/v3 , TR-69 Hands on experience in security protocols (IPSEC) and application (SSL/TLS/DTLS) , RADIUS, AAA Hands on experience in VOIP protocols like SIP, SDP, RTP, RTCP, CISCO MUX, MGCP, Comfort understanding on audio AAC –LC , G711 and video codec H.264 Email : vinay_tripathi@hotmail.com Phone No: Mobile: +91 9008955547
- 2. Good development experience in other application protocols (UPNP, DNS, DDNS, TFTP, FTP, SSH, HTTP/HTTPS ) Experience in working onsite with customers in different geographical location’s Very good exposure to the entire Software Life Cycle of a project . Technical support on business level Work experience in MIPS based Assembly language. . EDUCATION SUMMARY B.TECH in Computer Science. Technical Skills Programming Languages: C C++.Python, shell scripting, JAVA Script , LUA, JQuery, HTML. Tools/Utilities: IXIA, Spirent, SIPP, AiroPeak, MG-SOFT, LAUTERBATCH, Cable packet sniffer, SAG, CNR, Chariot, Wireshark, SVN, GIT, JIRA, clearCase , clearQuest, VNC, BCM call agent, VM-WARE , Asterisk, Smart Bit, Broadcom/CISCO/Ericsson specific Utilities,TSA600 RTOS: eCos, Vxworks, Embedded linux CHIPSET: BCM3348, BCM3349, BCM3378, BCM3380G, BCM6362, BCM63168, BCM4318, BCM4324, PPA2/PPA3, PertaB (BCM88640), FSW7111, FCM7128 Operating System: LINUX, Windows NT Significant Project Exposers Project 1. Line Card forwarding (Ericsson Smart Edge Router) Language: C, MIPS based assembly OS: Net BSD Role: Senior Technical Architect Client: Ericsson Employer: HCL Technologies Description: Ericsson smart edge router is multifunctional platform that includes edge routing, Ethernet aggregation, Subscriber management and MPLS PE.
- 3. Responsibilities: Given training on multiple Layer 2,layer3 and subscriber protocols (PPP, PPPOE, PPPOA, CLIPS(DHCP) Understanding/mentoring team on H/W and S/W data path in packet processor PPA2/PPA3 Fixing the forwarding issues related to the DO1Q PPPOE /PPP/DHCP subscribers. Resolving the forwarding issue related to access and Trunk LAG (Link Aggregation Resolving the forwarding issue related PPA TLM like DCM, MCT, LIN, ROC Resolving the issue related to L2VPN Resolving issue related to FIB and Adjacency lookup Project 2. CISCO Telepresence video conference endpoint software development Language: C/C++ OS: Embedded Linux Role: Technical Architect Client: CISCO Employer: WIPRO Technologies Description: This is IP based video conference device which can support single and multiscreen and speaker system. It is fully interoperability with other’s video conference devices. It supports advance and legacy codec like H.264, G711, and AAC-LC etc. Responsibilities: Involved in resolving media issue related to RTP, RTCP Correction in fragmentation and resembling techniques of audio/video frames Involved in resolving call drop related issue’s Coordinate between client and offshore team. Project 3 CISCO 3rd Party Call Control Endpoints Language: C OS: Embedded Linux Role: Technical Architect Client: CISCO SIP Proxy: Asterisk, Metaswitch, Broadsoft Description: it’s CISCO IP phone for 3rd party call control. Its support all advance call feature with multiline support. I has mechanism to provision automatically to defined service provider like metaswitch , Broadsoft, Asterisk Responsibilities: Involved in gathering/analyzing call control and Infra related requirement from
- 4. Developed zero touch provisioning for 3PCC IP Phone Integrated /porting enterprise code base Developed shared line , call forwarding , FKS feature , Call hold on busy , multiline support Integrated SIP over TLS Resolved multiple call control related issue. Resolved issue related to DHCP, CDP, VLAN, HTTP/HTTPS, Curl, SSL, syslog Contributed in firmware upgrade. Mentoring team on technical query/blockers Contributed in IPv6 support with dual stack Project 4. Wi-Fi enabled Broadband VDSL residential gateway Language: C OS: Embedded Linux Role: Team Lead Client: BSKYB Employer: WIPRO Technologies Description: BSKYB broadband VDSL residential router enables multiples interface (4 port Ethernet switch, Wi-Fi access point, USB) to access internet at home. it support multiple WAN interface (ATM, PTM, Ethernet) . Responsibilities: Design, coding and testing of platform abstraction layer modules for Ethernet , ATM and Wi-Fi Added IPOE interface via Ethernet in case of PTM , ATM failure Contributed in IPv6 integration LED driver implementation Wi-Fi WPS issue resolving while pre certification test Involved in fix fixing related to Ethernet driver Resolved issue related to IPTABLE for NAT, inbound /outbound rules SNMP MIBs implementation Involved in fixing filed issue related to PPP, PPPOA, PPPOE, DHCP, DNS, Firewall , ACL, UPnP, TR-69 Resolved issue related to JFFS2 file system Project 5. Broadcom switch layer 2 feature development Language: C, python, LUA, LSP OS: Embedded Linux Role: Module Lead Client: Broadcom Employer: Symphony Teleca Description: Layer 2 switching feature development, enhancement and customization Responsibilities:
- 5. Involved in developing HAL interface to get/set different switching feature Integrated DOT1Q feature in HP switches ACL implementation based on layer 2 classifiers IGMP snooping enabled Few web work to configure ACL and DOT1Q features Project 6. EPON based Access Edge device (FSU7000 OLT system) Language: C OS: MontaVista Linux Role: Team Lead Client: Sumitomo Network Employer: Aricent Group Description: This project is about the development of next generation multiple service access edge platform for supplied Gigabit service to subscriber. It’s designed to handle demanding network for carrier level as low latency Responsibilities: Implementation of interface library to establish communicate between switch card and PON card Involved in the integrate ISS Layer2/Layer3 stack to OLT system Involved in Implementation provider bridging (802.1AD) Implemented QOS per EVC VLAN support in LAG SNMP MIBS implementation Project 7. TWG870 VOIP/ WLAN Residential gateeway cable modem (DCOSIS 2.0 3.0) Language: C,C++ ASP, JAVA Script , AJAX, OS: eCos , Embedded Linux Platform: BCM3380ZWVG and WLAN BCM4324 Role: Senior Software Engineer Client: TECHNICOLOR (EUROPE and US) Employer: ASKEY Computer Corp (ASUS) Description: This device has embedded router which can enable feature like NAT, Firewall, IP filter, MAC filter, LLC filter. Multiple SSID wireless feature enable .but does not have VOICE service in this model. Due to integration of channel bonding feature device has much better performanc e in router mode
- 6. Responsibilities: Porting latest Broadcom patch in customized Technicolor Software stack Customizing WPS button feature based in TCH specification Porting /customization in wireless guest network feature Added IPv6 dual stack support Fixed issue related to channel bonding Fixed issue related to configuration TLS parsing L2VPN support added based on VLAN On-hook, off-hook LED implementation FON Hotspot feature integration SIP register re-try enhancement after received 401, 403 and 404 SIP error MPEG2 over IP encapsulation porting in order to support IP TV services IPv6 provisioning with DHCPv6 and dual stack Write Ethernet driver based Atheros chipset L2TP (LAC) porting Project 8. DWG855 EMTA (VOIP) / WLAN Residential gateeway cable modem (DCOSIS 2.0) Language: C,C++,ASP, JAVA Script , AJAX, OS: eCos , Embedded Linux Platform: BCM3380ZWVG and WLAN BCM4324 Role: Senior Software Engineer Client: TECHNICOLOR (EUROPE and US) Employer: ASKEY Computer Corp (ASUS) Description: This device has embedded router which can enable feature like NAT, Firewall, IP filter, MAC filter, LLC filter. Multiple SSID wireless feature enable .but does not have VOICE service in this model. Due to integration of channel bonding feature device has much better performanc e in router mode Responsibilities: WPS feature customization and fixed issue during pre-Wi-Fi certification WPS Hardware button control WPS web control development Wi-Fi multiple SSID support added Added feature to isolate private and public Wi-Fi network 802.11 SNMP MIB implementation L2VPN support added based on VLAN SNMP MIB to control Voice Codecs QOS TOS bit marking in RTP packet DDNS implementation DHCPv6 implementation Project 9. TCW750-4 WLAN Residential gateeway cable modem (DCOSIS 2.0) Language: C,C++, ASP, JAVA Script , AJAX, OS: eCos , Embedded Linux Platform: BCM3368WRG and WLAN BCM4318 Role: Senior Software Engineer
- 7. Client: TECHNICOLOR (EUROPE and US) Employer: ASKEY Computer Corp (ASUS) Description: This device has embedded router which can enable feature like NAT, Firewall, IP filter, MAC filter, LLC filter. Multiple SSID wireless feature enable .but does not have VOICE service in this model. Due to integration of channel bonding feature device has much better performanc e in router mode Responsibilities: Added SIP, FTP and MSN NAT ALG support Modified IP and MAC table to support different firewall rules Developed different access level to access device HTTP server Filter based on port, IP, MAC Port forwarding implementation IGMP snooping RIPv2 implementation Routed subnet feature development Project 10. WCG200V2 WLAN Residential gateeway cable modem (DCOSIS 2.0) Language: C, ASP, JAVA Script , AJAX, OS: eCos , Embedded Linux Platform: BCM3349 Role: Senior Software Engineer Client: CISCO (Linksys) Employer: ASKEY Computer Corp (ASUS) Description: This device has embedded router which can enable feature like NAT, Firewall, IP filter, MAC filter, LLC filter. Multiple SSID wireless feature enable .but does not have VOICE service in this model. Due to integration of channel bonding feature device has much better performanc e in router mode Responsibilities: Inbound and outbound firewall support added DMZ support added Downstream frequency scanning algorithm development Vendor specific feature development Different DHCP options added in DHCP client Cable Home configuration and verification Packet snooping mechanism development SNMP MIB development to control RG features Wi-Fi SES feature customization based on CISCO Linksys specification Project 11. 3COM Routers software development Language: C OS: Embedded Linux Role: Software Engineer Client: 3COM Employer: JIL Information Technologies
- 8. Description: This it’s high performance routing device which offers low latenc y path for audio, video and data traffic. Responsibilities: Involved in implementation of RIPv2 and OSPFv2 routing protocols Added RIPv2 RA with MD5 support Added OSPF Hello packet handling based on different timer’s Electing designated router support as per RFC Reforming adjacency after any change found in network Adding gateway to neighbor list Handling different type LSA and updating table accordingly ICMP Ping debug support CLI to configure RIPv2 feature Bug fixing PERSONAL DETAILS: Father’s Name: Mr. S.S Tripathi Marital Status: Married Languages known: English and Hindi. Contact Address: Vinay Tripathi Flat No: S 3 Pearl City, Ruby Apartment Muthanallur Junction Bangalore-560099 Passport: M1216476