PROFESSIONAL SUMMARY:

• Cisco Certification CCNA with 5 years of professional experience in a diversified work environment as a Network Engineer.
• Widespread knowledge of Routing, Switching, LAN/WAN, Intrusion Detection System and Prevention System (IDS and IPS), Firewall Management, IPSec and VPN Configuration, VoIP Management.
• Profound understanding with hands - on experience of Routing Protocols like EIGRP, OSPF, IS-IS, BGP, RIP (both Versions 1 and 2), OSPFv3. Through knowledge of NAT, Route Map, Route Redistribution, Distribute List and IPv6.
• Extensive knowledge of switch functionalities and multilayer switching network like STP, RSTP, CEF, Ether Channel (PAGP and LACP). Redundancy Protocols like HSRP, VRRP and GLBP and Load Balancing using PAGP and LACP and PPP over Multilink.
• In depth experience with Layer 2 and Layer 3 security features such as Authentication, Cryptography, IDS/IPS, IPSec, VPN, Firewalls, Standard and Extended Access Lists, Port Security, AAA, IBNS (802.1x) using RADIUS Server, DHCP Snooping.
• Worked with VLAN and VTP, Voice VLANs, VLAN Security issues and implemented Private VLANs to address VLAN Hopping Attack.
• Knowledgeable about IP Multicast, IGMP, IGMP version 2 and 3, CGMP, IGMP Snooping, PIM-Sparse and Dense Mode, F5/Big-IP Load Balancer.
• Configured VoIP using Cisco Call Manager, RTP for real time voice transfer, settings of QoS using CoSTrust Boundaries, call controlling signaling like MGCP, H323 and SIP.
• Good understanding of wireless network and utilization of Autonomous Access Point and Light Weight Access Point Protocol (LWAPP), Wireless Access Point (WAP),Wireless Controllers, WDS, WLSE.
• Proficient to work in a team while making a valuable contribution towards the fulfillment of the task.
• Ability to provide all level of network troubleshooting, installation support and documentation.
• Skillful in business level communication, analysis of different approaches, and providing assistance to junior level network engineers.
• Self-motivated and willing to learn new technologies.

Skill Set:

Cisco Router Series: 2800, 2900, 3200, 3800, 3900 Branch Routers and7200, 7600 Data Center Routers.

Cisco Switch Series: 2350, 2360, 2960, 3550, 3750 Catalyst Access Layer Switches, 2955 Ethernet Switches and 6500 Data Center Switches.

Firewalls: PIX 506e, 515e, 525, 535 and ASA 5505, 5510, 5520.

Big-IPs: 6900 and 8900 Series

Network Protocols

Routing Protocols: RIP version 1 and 2, EIGRP, OSPF, OSPFv3, IS-IS, BGP.

Switching Protocols: STP, RSTP and PVST.

Redundancy Protocols: HSRP, VRRP and GLBP.

Multicast Protocols: IGMP, IGMP version 2 and 3, CGMP, PIM-Sparse and Dense Mode.

DHCP, FTP, TFTP.

Network Security

Access Lists, Firewalls, IPSec and VPN, Deep Packet Inspection, IDS/IPS, Port Security, DHCP Snooping, Private VLANs.

LAN Technologies

Ethernet, VLAN, VTP, Private VLANs, ISL and 802.1q Frame Tagging.

WAN Technologies

HDLC, Frame Relay, PPP (PPPoE and PPPoATM), DSL (ADSL, HDSL), Cable and Modem, T1/T3, E1/E3 and MPLS.

Network Management

SNMP, ICMP, Telnet and SDM.

Network Protocol Analyzer

Network Simulator-2, Wireshark, Ethereal, Packet Tracer.

IP Telephony

Cisco AVVID solutions, IPCC express/ IP IVR/ AA, CTI, Cisco IPphones,Cisco Gatekeepers, Cisco Voice Gateways RTP, RTCP, H.323, SIP, MGCP, Cisco Call Manager, Cisco Unity, Call Admission Control, Movius Unified Messaging

Layer 2/ Layer 3 Network Protocols and Technologies

E1 PRI/BRI, TDM multiplexers, FXS/FXO, Frame Relay, PPP, HDLC, Ethernet

Education and Certifications:

• Bachelors of Engineer in Electronics and Communication Engineering.
• Cisco Certified Network Associate (CCNA) CSCO12011026

Professional Experience:

Confidential, Plano, TX Apr

Role: Voice Network Engineer

Primary Responsibilities:

• Design and implement VoIP Cisco IP Telephony and IP Contact Center Design, deploy, and supportCisco Call Manager/ Call Manager Express (CME) and Cisco Unity (VM/UM)/Unity Express (CUE) solutions.
• Install, configure and support Cisco Hardware required for Avvid implementation including Gateways (3700 Series, 2600 Series Routers), gatekeeper Cisco 3700 Series Routers) Voice gateway (VG 224).
• Worked on Remedy Incidence, Work Orders and Tasks to trouble-shoot layer 3, layer 2, DNS, DHCP, F5 and wireless issues
• Install and configure of Cisco routers, IP phones and the Call Unified Call Manager Server 4.x, 5.x, 6.x, Cisco Unified Communications Manager 6.x and unity 2.x, 4.x, 5.x; Troubleshoot hardware problems and tested the end point security.
• Designed, Installed and Administered Cisco Unified Contact Center Enterprise (UCCE) edition.
• Configure conference bridges, voicemail servers and music-on-hold servers.
• Used ISUP/ SIP Internetworking for Call Hold and terminal portability.
• Perform call analysis of SIP/RTP protocols to determine call failure such as echo, jitter, BW usage, MOS, QOS, one way audio, etc.
• Pre-configuring the Cisco 2811 Routers, and Cisco 3560 Switches, for deployment in the field.
• Supervise and implement various sites personally, including ordering circuits, installing the equipment and integrating them into the network.
• Ensure that customers have both voice and data connectivity to do their jobs; Make sure all Cisco VOIP functions are working, including the 7910, 7940, 7960 and 7912 series phones are working.
• Developed test plan and test procedure for VoIP protocols (SGCP, MGCP).
• Maintained regular backup of all the configurations on a FTP server.
• Configured H.323, gatekeeper forweb and video conferencing services.
• Deployed site-to-site connectivity using call manager express integrated along with unity express.
• Configured and troubleshoot CAS, ISDN, SIP, and H.323 Trunks and call flows.
• Well versed with various voice interfaces like E M, FXO, FXS and other WAN interfaces.
• Administered and configured Cisco Unified Intelligent Contact Center Manager (UICM) and Cisco Unified Customer Voice Portal (UCVP)
• Analyzing, Troubleshooting the Cisco unified communications using the Wireshark protocol analyzer.
• Install, Integrate and Maintain Cisco IPCC, IP-IVR and ICM.

Confidential, India Jul'08 - Mar'11

Role: NSS Engineer

Primary Responsibilities:

• Responsible for Handling MSS, MGW, GCS, CDS, MSCs, and HLRs with target of Error free and Alarm less network.
• Responsible for day-to-day Operation and Maintenance Activities of Mobile Service Switching Center (MSC), Mobile Soft Switch (MSS) Media Gateway (MGW).
• Good Knowledge on SS7 signaling, GSM protocols and interfaces of Nokia Switch.
• Experience with NOKIA DX 200 MSC/VLR, HLR AND MSS -MGW.
• Performed O M routine checking of network active alarms, SS7 signaling link Status, circuits and circuit group status, clear codes and computer units.
• Served as a configuration team member.
• Data Definition, Trouble shooting and Launch of New Roaming Tie-ups for
• Postpaid
• Camel Tie-up
• GPRS tie-up
• Actively involved in SCCP global title routing definition for efficient Configuration of MSC/VLR, HLR/AUC for the launch.
• Routing of SCCP messages towards HLR, SMSC and SCP.
• Performed as an IREG( International Roaming Expert Group ) - Defining and testing for new launch with national and international operator
• Prepared database scripts for implementation of Mobile Number Portability project.
• Tested and loaded successfully in all Network nodes for Mobile Number Portability Project.
• Maintained charging back up on external media on daily basis.
• Performed BSC Rehoming from one MSC to another MSC.
• Analyzed traces for SMS, LU failure, and ISUP call trace by using NETHAWK and Tektronix Protocol Analyzer.
• Installation, configuration and maintenance of LAN WAN using Cisco 2600, 2800 series Routers and 1900, 2900 series switches.
• Configured Cisco routers to run EIGRP and OSPF routing protocols.
• Implementation of NAT with a pool of public IP addresses.
• Planned and designed network addressing scheme with IP Subnetting of Class A, B and C networks.

Projects and achievements

• Achiever of the Month Award, January 2010: For excellent contribution in MNP database script creation, loading and testing in all Core nodes.
• Achiever of the Month Award, June 2010: For contribution in making live new HLR for commercial traffic in record time of 10 days.
• Achiever of the Month Award, September 2010: For successfully shifting national and international traffic for MTP as well as SCCP with all operators.

Confidential

Network Support Engineer

Job Overview: Support to a medium branch office network equipped with Cisco routers 2600, 2800, switches 2800, 1900, Hub.

Responsibilities:

• Installed, configured and maintained Cisco Routers.
• Planned and designed network addressing scheme with IP Subnetting.
• Installed configured LAN WAN using Cisco 2600, 2800 series Routers and 1900, 2900 series switches.
• LAN/WAN hardware including, Ethernet Hubs, Cisco Switches, switches panel's installation, configuration and troubleshooting.
• Provided network security administration functions including hardware access, software access, passwords, user privileges and related tasks.
• Cisco router configuration set up routing protocols like RIP, EIGRP and OSPF.
• Implementation of NAT with a pool of public IP addresses.
• Switching related tasks included implementing VLANS and configuring ISL trunk on Fast-Ethernet channel between switches.
• Troubleshoot TCP/IP problems; troubleshoot connectivity issues in multi protocol Ethernet, Environment.