SUMMARY

• Over 7 years of experience in networking with emphasis and in depth understanding of Routing and Switching.
• Experience in designing, capacity planning, upgrade/maintenance & implementing networks using Cisco and Juniper Products with understanding of application level security.
• Designing schemes for IP Addressing & Subnetting.
• Experience in IP Routing with BGP, OSPF and EIGRP.
• Worked on WAN/Core based on ATM & Frame Relay on Optical SONET infrastructure.
• Worked on VoIP on point - to-point & FR PVC’s with Traffic Shaping.
• Good experience in implementing MPLS-VPN’s.
• Excellent knowledge about OSI and TCP/IP models.
• Strong troubleshooting experience on Cisco and Juniper Devices.
• Knowledge of Windows XP, 2003, 2008 Linux Redhat server.
• Experience in configuring IP Multicast, STP, VTP, HSRP, GLBP and redistribution between routing protocols troubleshooting them.
• Experience in testing circuits and line cards using loops and pings.
• Experience using tools NetDB, MRTG,
• Experience in configuring Cisco routers and working in multi-vendor environment.
• Experience working under high pressure outage situations and customer escalations.
• Router platforms include: Cisco 2600 Series, 2800 Series, 3700 Series, 3800 series, 7200 Series, 7, 7500 Series and ASR9K, GSR12K Series, CRS -1, Juniper M320, T640, MX960.
• Switch platforms include: Cisco 2900 Series, 3500 Series, 3750 Series(L2 and L3), 4000 Series, 4500 Series(L2 and L3), 5500 Series, 6500 Series(L2 and L3),Nexus (7k,5k,2k)

TECHNICAL SKILLS

Routers: Cisco CRS-1, GSR 12000, 7600, 3800, 3600, 2600 and ASR 9000 SeriesJuniper M320, MX960, T640

Switches: Catalyst 6500, 3550 and 2900 Series.

LAN Protocols: Private VLAN’s, VTP, DTP, MLS, STP, RSTP, MST, Ether Channel, FHRP, VRRP

IP Routing Protocols: BGP, OSPF, IGRP, EIGRP, RIP

MPLS: LDP/TDP, MPLS VPN, L2VPN

Wireless: 802.1 a/b/g WLANS

WAN /Core: ATM, Frame Relay, PPP, HDLC

Firewalls: Cisco (PIX/ASA) Quality of Service Classification and Marking (CoS, ToS), Congestion, Management Avoidance (CQ, PQ, WFQ, CB-WFQ, RED, WRED, LLQ).

PROFESSIONAL EXPERIENCE

Confidential, Bridgeton, MO

Network Support Engineer

Responsibilities:

• Work as a Tier II Network Support Engineer for Confidential &T IP Network Reliability Center - Common Backbone Team.
• Responsibilities involve monitoring, maintaining, upgrading and troubleshooting Confidential &T’s backbone network, SBC and Bellsouth infrastructure and PER devices.
• Managing and Controlling traffic flow across the backbone infrastructure for critical business traffic such as mobility, IPTV, customer cloud, etc.
• Monitoring network performance to proactively avoid outages due to uplinks failure on PER devices, congestion due to overutilization, router OSPF re-routing, BGP failure, etc.
• Work on and Responsible for management, hardware troubleshooting and maintenance of Cisco platforms including service provider routers such as CRS - 1, GSR 12000 series, 7600, 2800 and ASR 9K running IOS or IOS XR operating system and Juniper platforms like M320, T640 and MX960 running JUNOS.
• Resolving incoming tickets for network traffic impacting issues or customer service complaints related to Confidential &T’s back bone network infrastructure.
• Work on Sonet and Ethernet Layer 2 standards and implement Link Aggregations (LACP) for capacity up-gradation and management.
• Work on high bandwidth Optical Carrier (OC’s / STM) Sonet circuits and bundles using high OC levels such as OC3, OC12, OC48, OC192, and OC768.
• Perform loop testing on Sonet and Ethernet circuits for troubleshooting circuit errors, bounces, downed circuits, XFP /SFP, PIC or Line Card issues.
• Responsible for setting up, engaging onsite teams, processing impact notifications and performing maintenance activities such as line card replacement, fabric card replacement, processor card replacement, chassis replacement or addition, chassis capacity up-gradation, power shelf and module replacement, software up-gradation, etc.
• Re-routing traffic if necessary to troubleshoot or avoid issues like circuit failure, link congestion, packet drops, delay, unreachability, BGP failure, etc.
• Work on Asynchronous Transfer Mode (ATM) and Frame Relay PVC’s troubleshooting.
• Implemented policy based routing to prioritize traffic and troubleshooting issues like overutilization, policy drops, etc.
• Work with peering service providers to resolve issues like circuit down, errors, BGP flaps or updates, re-routing traffic, congestion, etc.
• Implemented OSPF single area and multi-area configuration changes to re-route traffic or dry out traffic from a device.
• Implemented access list and black holed traffic to prevent DDOS attacks.
• Worked on Route-Reflectors to troubleshoot BGP issues related to customer route prefixes, BGP route filtering policy problems, ORF etc.
• Work on and troubleshoot MPLS VPN’s over IP Tunnels.
• Troubleshoot VRRP issues on LAN infrastructure on PER devices.
• Worked under high pressure outage situation caused due to router unreachability, channelized OC circuit failure, card failure, routing loops, etc.

Confidential, Atlanta, GA

Network Implementation Engineer

Responsibilities:

• Actively participated in upgrading fast Ethernet, Layer 3 switched/routed LAN infrastructure from Cisco 3640 to Cisco 2811 ISR routers and switches Confidential access level to 2950, 3550. This project also involved in configuring and testing EIGRP and BGP protocols.
• Instrumental in installing and configuring f5 BigIp to provide Load Balancing for server.
• Installed and Configured Cisco Routers - GSR 12000, 7600series, 4500, 2800s.
• Migrated distribution Switches 6509 to Nexus 7010.
• Design and deployment of Large scale SONET, ATM, BGP network architecture design.
• Testing for Functionality and convergence of the network.
• Provided Tier 2 support
• Implemented MPLS VPN (RFC 2547) Mechanisms on Cisco IOS
• Configuring and troubleshooting MP-BGP Session Between PE Routers
• Troubleshoot multi area OSPF and OSPF scale issues
• Configured and Worked on PIX(535,525)/ASA(5520,5550) firewalls
• Configured policy statements, routing instances, firewall filters
• Ability to work independently and also as part of a team, following established guidelines.
• Switches standardization- Includes replacing old switches with standard Cisco 3500 switches, upgrading Cisco IOS on Cisco 3500, modifying switch configuration, adding authentication, logging and SNMP configuration parts.
• Proficient in Layer 1 circuit troubleshooting
• Worked on troubleshooting customer issues related to MPLS VPN related issues involving PE configuration issues, PE-CE link issues such as routing protocol configuration, Layer1 / Layer2 issues, BGP address-family related issues, MP-BGP.
• Worked on deploying Multicast to various customers, that involved PIM- Sparse and Dense modes.
• Worked on routing protocol related issues such as static, RIP, EIGRP(Variance and un equal cost load balancing)
• Worked on issues related to customer access-lists and various security feature
• Worked on Gigabit Ethernet service related issues troubleshooting Catalyst 6500, 3560 switches,
• Issues related to VLAN, VLAN Trunking, HSRP failovers, related issues

Confidential

Network Engineer

Responsibilities:

• Assisted with troubleshooting all network issues with routers and switches when necessary and consulted with on call tech as needed.
• Validate existing infrastructure and recommend new network designs.
• Manages network device configurations, logical names and addresses, network design and implementation.
• Improving OSPF convergence by controlling SPF algorithm, LSA/SPF throttling.
• Participate in all technical aspects of LAN, WAN, VPN and security internetworking projects including, short and long term planning, implementation, project management and operations support as required.
• Extensively used TCP/IP tool like TELNET for remote login to the routers and SSH for secure login.
• Estimated Project costs and created documentation for project funding approvals.
• Managed various teams involved in site surveys, cabling specifications, Network equipment installation and configuration.
• Planned resources and presented project status to higher management.
• Deployed 7613 as PE and CE router and Configured and troubleshooted the Edge Routers.
• Has expertise in LAN/WAN technologies (fast Ethernet, Layer2 & 3 switched/routed LAN, and Frame Relay).
• Routing Protocols, Networking Layer1, 2, 3 Switching concepts, LAN/WAN technologies, Wireless Networking, TCP/IP concepts.
• Configured Trunk groups, ether channels, and Spanning tree for creating Access/distribution and core layer 1 switching architecture and also for security.
• Enabled GSR RPR+ mode, installed Engine 5 SIP cards, Upgraded Cisco GSR routers GRP-Bs to PRPs ( RPP+), PRP 1 to PRP 2 and IOS levels as well.
• Tested various BGP features like local-preference, MED, Weight and replicated customer issue problems in the testing environment lab.
• Performed various Line card memory upgrades, PRP memory upgrades and fabric upgrades on Cisco 12000 series routers.
• Configured policy maps, class maps and access lists on GSRs
• Worked with Cisco to troubleshoot various problems
• Designed secure VPN architecture, including MPLS VPN platforms for various customers which includes ISP’s.
• Modified router configurations programming with additional VLANs, port assignment.