Software Engineer - Project Manager
Resume:
Phone: 818-***-****
************@*****.***
Keerthana Sadhasivam
PROFILE SUMMARY:
• 4+ Years of experience in testing of Telecom and Data Communication Software
• Working Experience in Alcatel-Lucent’s ISAM (IP-DSLAM) and GPON product line
• Wide knowledge in Product Testing
• Strong interpersonal skills with hands on experience in Requirement analysis, Test Plan preparation, test cases execution which includes sanity and regression testing
• Good proficiency in IP Networks, L2 and L3 protocols
• Proficient with ISAM and GPON products
STRENGTHS:
• Good leadership qualities, commitment, result oriented and Ownership qualities
• Good experience in entire SDLC, excellent technical skills and analyzing ability
• Versatile team player with excellent communication and interpersonal skills
• Self motivated and hard working with a strong will to succeed
PROFESSIONAL EXPERIENCE:
• Worked in Aricent Technologies, Chennai, India from April 2007 to August 2010
• Worked as Software developer for OSTPL, Bangalore from April 2006 to March 2007
TECHNICAL EXPERIENCE:
• Experience/Knowledge in Network/Management protocols: Link Aggregation, 802.1ag, Spanning Tree Protocol (STP) and 802.1w Rapid Spanning Tree Protocol (RSTP), VLAN, SNMP, IPV4, IGMP, ICMP, RIPV2, IGS proxy reporting and DHCP proxy.
• Experience in development and testing of 1:1 Port Protection, Link Aggregation, Performance Monitoring and MIB Alignments.
• Good knowledge of writing test cases for different levels of test cycles.
• Good knowledge on debugging the cause of any issue propagated during the System integration testing phase.
• Good knowledge on developing end to end test bed for testing voice, video and data traffic.
• Exposure to Complete Software Development Life-cycle.
ACADEMIC CHRONICLE:
• Masters of Computer Applications from Bharathidasan University from 2003 to 2006, India
• Bachelor of Computer Applications from Bharathidasan University from 2000 to 2003, India
TECHNICAL KNOWLEDGE:
• Domain : Layer 2, Layer 3 Network Protocol Testing
• Operating System : WINDOWS 98/2000/XP, Linux, VxWorks
• Programming Languages : C, C++, JAVA
• Application Software / Tools: Source Insight, VIM, StarUML
• Technology & Protocols : Networking Protocols:
L2 switching technologies - VLAN,
STP/RSTP, LACP
IP Domain - TCP/IP, UDP, ARP, DHCP Relay,
IPV4, RIP v2, IGMP v2/v3, IGMP snooping,
SNMP
• Bug Tracking : DDTS, Bugzilla
• Traffic Generator : Spirent Test Centre, Smart Bits 2000/6000, IXIA.
• Network Protocol Analyzer : Wire Shark, Ethereal
• Testing Tools : HyperTerminal, Tera -Term for CLI
• Configuration Management : Win CVS
MAJOR PROJECTS HANDLED:
1. Alcatel ISS - FTTU GPON (L2/L3 Switch) Features
The Alcatel 7342 ISAM FTTU uses Full Service Access Network standards complaint gigabit Passive Optical network (GPON) technology to multiplex any mix of voice, video or data in central office onto a single fiber that is terminated at the subscriber's premise. It is designed for wire-speed performance with cost-effective Ethernet switching and enhanced Layer 2/Layer 3 functions. Alcatel’s FTTU-GPON is a DSLAM that focuses on real-time applications including video broadcasts and managing Ethernet Traffic with a Redundant NT/Lanx. The project involves developing the protocol stack for the data traffic controlling part of the Switch called LANX in a VxWorks Environment. The project focuses on the redundant architecture with an Active and Standby LANX. The services like HSI traffic and VoIP are un-affected if the Active Lanx goes down.
The scope of the work at Aricent includes providing redundancy support of the existing ISAM R2.3 baseline of ISS software. Redundancy supported ISAM called as ISAM 4.0 baseline. It involves development and testing of all data communication L2 protocols like LACP, IGS, RSTP etc. and the L3 protocols like RIP to be integrated in future.
Duration : 18 months
Client : Alcatel – Lucent
Team size : 24
Technology skills : L2 Protocols – VLAN, RSTP, LACP, IGS
L3 Protocols – IGMP, RIPV2, ARP
Contribution :
• Automation & Manual Testing of FTTU Features from projects R4.6, R4.7, R4.7.x Releases.
• Involved test plan preparation for Uplink Redundancy feature in R4.7 release.
• Involved in Manual Testing of R4.7 FTTU features using FTTU CLI and SNMP.
• Manual testing for R4.7 Uplink Redundancy Feature and Fault report for the same.
• Manual testing for R4.7.04 SFP Inventory Data Read and reported fault reports.
• Involved in Sanity and regression testing for R4.7.x customer delivery.
• Involved in Automated sanity and regression testing from R4.5.x to R4.7.x releases.
2. Alcatel ISS R4.7.04 SFP Inventory Data Read
Implementation of SFP/XFP Inventory data Read features. Testing with SFP & XFP’s various permutations and combinations, reading the data, observing switch temperature at every level.
Duration : 3 months
Client : Alcatel – Lucent
Team size : 2
Technology skills : Others: SFP and XFP Read Behaviour.
Contribution :
• Involved in Manual Testing Manual testing for R4.7.04 SFP Inventory Data Read using FTTU CLI and SNMP.
• Root cause analysis of Fault report for Release R4.7.04
• Involved in Sanity and regression testing for R4.7.04 customer delivery.
3. Alcatel ISS R4.7 Uplink Redundancy Feature
Implementation of Uplink Redundancy Feature to support 1:1 Link protection, i.e
A network can offer protection by providing alternative resources to be used when the working resource fails. There is specific terminology for the number and arrangement of such resources. The 1+1 link protection type provides protection for 1 working resources using 1 protection resources. The protection resources are only used at the time of the failure.
For doing this network protection mechanism we are using the Link Protection based on Link Aggregation. For an Ethernet transport, Link Aggregation allows one or more Ethernet links connecting the same two nodes to be aggregated into a Link Aggregation Group (LAG). A LAG logically behaves as a single link. The frames that each of the two nodes transmits through the LAG are distributed between the parallel links according to the decision of that node.
One of the features of a LAG setup is protection against failures of each of the links comprising the LAG. When one of these links fails, the nodes at the two sides of the LAG simply change their LAG distribution function to spread the traffic between the remaining links. When a link recovers, the LAG distribution function changes again to include it.
Duration : 5 months
Client : Alcatel - Lucent
Team size : 2
Technology skills : Features: 1:1 Link Protection.
Protocols: RSTP, LACP
Others: SNMP
Contribution :
• Analysis of Requirements and authored in identifying the test cases.
• Authored in writing System integration Test plan.
• Manual Testing.
• Root cause analysis of Fault report for Release R4.7
• Manual Testing of Combination and Stress test cases.
• Regression Test cases Identification and Execution.
4. Manual Testing for Alcatel ISS R4.6
This project was basically a FTTU project which has Lanx proprietary features like, Mac scaling Vlan, Business vlan, Rip Ingress and egress route maps, P-bits translation, BW threshold and Auto save.
Duration : 5 months
Client : Alcatel – Lucent
Team size : 3
Technology skills : Features: FTTU Specific Features for the release R4.6
Protocols: RIP, RSTP, ARP, and ICMP.
Others: TTL.
Contribution :
• Analysis of Requirements and authored in identifying the test cases.
• Authored in writing System integration Test plan.
• Test plan Preparation for the CR P-bit translation for R4.6 release.
• Involved in Sanity and regression testing during customer release of this product.
• Manual Testing (SIT and regression) of GPON Features in R4.6 release.
5. Alcatel ISS R4.6 – User to User communication
Earlier in FTTU product, when a voice call is made between two users whose connections terminated on the same Optical Line Terminal (OLT), the voice packets are forwarded up to the network by the OLT and then returned to the OLT for forwarding to the destination. This feature allows the packets to be forwarded within the OLT without the need to send the packets to the network. With this feature implementation, all the voice packets shall be switched to destination using Layer 2 forwarding data base only i.e. Layer 3 routing was made obsolete.
Environment : C, Data structures and VxWorks.
Duration : 5 months
Client : Alcatel – Lucent
Team size : 2
Technology skills : Features: FTTU Specific Features for the release R4.6
Protocols: RIP, RSTP, ARP, and ICMP.
Others: TTL.
Contribution :
• Analysis of Requirements and authored in identifying the test cases.
• Authored in writing System integration Test plan.
• Involved in Manual Testing.
• Raised bug in Bugzilla and DDTS.
6. R4.6 & R4.5 & R4.5.5 – Alcatel ISS - FTTU MAINTENANCE
Aricent provides the software named LANX to control and manage the GPON switches. This project is about fixing bugs in the R4.5 & R4.5.5 release of Alcatel 7342 GPON switches. It is a L2/L3 switch that supports VLAN, LA, IGS, RSTP, ARP, DHCP and RADIUS relay, VRF, Secure L2 Learning and L3 support.
The support of L3 features includes ARP, RIP, RTM and fast path VRF.
Duration : 3 months
Client : Alcatel – Lucent
Team size : 2
Technology skills : C, VxWorks
Contribution : Maintenance
7. Alcatel ISS R4.5 Modifications
Porting of GPON Features from EHNT to EXNT platform
Duration : 3 months
Client : Alcatel – Lucent
Team size : 1
Technology skills : Protocols: L2 & L3 protocols.
Features: GPON specific Features from R4.1 to R.4.4.10.
Contribution :
• Analysis of Requirements and authored in identifying the test cases.
• Authored in writing System integration Test plan.
• Involved in Manual Testing.
8. Manual testing for ISAM R3.4 maintenance release.
The ISAM is an IP-DSLAM that operates in a packet aggregation network. Basically the data in the ISAM will be forwarded according to Ethernet bridging rules, the ISAM could also be referred to as an Ethernet DSLAM. This project was basically a Change request on External packet forwarding (EPF), User to User communication is handled previously by FTTU OLT and the change request is to handle the user to user communication through external gateway, so that the user to user communication handled can be accounted.
Duration : 3 months
Client : Alcatel - Lucent
Technology skills : Protocols: L2 & L3 protocols.
Features: GPON specific Features from R4.1 to R.4.4.10.
Contribution :
• Manual testing for the Feature test cases.
• Identified and raised bugs for the defects.
• Verification for the fixed Bugs.
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