SUMMARY

• Cisco Certified Network Professional (CCNP) with over 7 years of working experience with L2, L3 Switching and Routing on Cisco and LAN/WAN - Telco management.
• Strong hands on experience on Cisco Catalyst (1900, 2900, 3550, 3750, 4900, 5000, 6500) and Nexus Series Switches, Cisco (2800, 2900, 3600, 3800, 3900, 7200) series Routers, Firewalls (PIX 506, 515, 525, 535, ASA -5505/5510, Palo Alto 7080, Juniper SRX, Fortigate, etc.) Cisco ISE (Identity Service Engine), VSS technology, Load Balancers - Cisco ACE, F5 Networks LTM 8900, Security Device Manager (SDM), Handling VoIP and Data services, Cisco Works, Packet Sniffer- Wireshark, RiverBed.
• Working closely with Data center management to analyze the data center sites for cabling requirements of various network equipment.
• Experience in migration of Cisco network to Aruba Wireless Network.
• Working configuration of new VLANs and extension of existing VLANs on/to the necessary equipment to have connectivity between two different data centers.
• Excellent knowledge on OSI and TCP/IP suites and all layers (L1 - L7 in OSI).
• Experience in Configuring and implementing VLAN, VTP domains, LAN switching and STP/RSTP.
• Experience in Cisco and Juniper: Physical cabling, IP addressing, Wide Area Network configurations (Frame-relay & MPLS), OTV, Routing protocol configurations (RIP, EIGRP, OSPF, BGP)
• Proficiency in configuration of VLAN setup on various Cisco Routers and (Catalyst and Nexus) Switches.
• Extensive hand on experience with complex routed LAN networks, Cisco Routers and Nexus Switches.
• Experience in writing automation scripts in scripting languages like Python and Shell. Using Python scripts to automate basic networking configuration commands.
• In-depth expertise in the analysis, implementation, troubleshooting & documentation of LAN/WAN architecture and good experience on IP services.
• Implementation and Troubleshooting of WAN authentication protocols - PPP, CHAP and PAP.
• IP addressing and IP address scalability by configuring NAT/PAT.
• Good documentation skills using MS Office - Visio and Knowledge transfer skillset.
• Experienced working on network monitoring and analysis tools like, Solar Winds, Cisco works and River Bed and Wireshark.
• Excellent learning, interpersonal and communicating (written and verbal) Skillset. Multitasked, Problem solver and Good team player.

TECHNICAL SKILLS

Routers: Cisco 7600, 7200, 3800, etc.

Routing: OSPF, EIGRP, BGP, RIP v1/v2, PBR, OTV, Filtering, Redistribution, Summarization and Static Routing.

Switches: Nexus 5K/7K, Cisco Catalyst 2900, 3500, 3700, 3850, 3750, 6500

Switching: LAN, VTP, STP, Inter VLAN routing & Multi-Layer Switch, Ether Channel, Transparent Bridging.

Load Balancer: F5 Networks (Big-IP) LTM 8900

LAN: Ethernet (IEEE 802.3), Fast Ethernet, Gigabit Ethernet

WAN: PPP, HDLC, Channelized links (T1/T3), Fiber Optic Circuits, Frame Relay, VOIP

PROFESSIONAL EXPERIENCE

Confidential, Chicago, IL

Network Engineer

Responsibilities:

• In-depth expertise in the analysis, implementation, troubleshooting & documentation of LAN/WAN architecture and good experience on IP services.
• 24x7 on-call escalation support as part of the security operations team.
• Experience in migration of VLANS.
• Providing training to new resources in team and effectively working towards a process quality improvement in the Team.
• Responsible for Exchange Online Protection administration, Rule Analysis, Rule Modification.
• Supporting OSPF and BGP based on the network by resolving level 2 & 3 problems of internal teams & external customers of all locations
• Deployment and decommission of VLANs on core ASR 9K, Nexus 7K, 5K and its downstream devices.
• Created Lab setup with 7k and 5K NEXUS switches for application testing.
• Extensive hands-on experience with VSS, OTV technologies with Cisco 7k series Switches.
• Hands-on experience with McAfee EPO deploying agent either with EPO.
• Responsible for any virus detection is remediated in a timely manner.
• Responsible in troubleshooting on Cisco ISE added new devices on network based on policies on ISE.
• Provide escalation support to L1/L2 members ofnetworkteam.
• Worked with different ISP globally for any WAN circuit and BGP routing issues. Opening up cases for CE routers, Riverbed optimizer issues.
• Involved in knowledge transfer from customer to new resources.
• Work & escalate problems effectively in order to meet customer SLA's (service level agreements).
• Perform problem management and root cause analysis for P1/P2 incident.

Confidential, Chicago, IL

Sr. Network Engineer

Responsibilities:

• Troubleshooting issues related to Layer 1/2/3 skills like switching / routing, WAN /Hardware and critical network links by coordinating with the vendor.
• Remediation of firewall rules from checkpoint firewalls to Cisco ASA firewalls and their implementation.
• Installing and configuring new cisco equipment including Cisco catalyst switches 6500, Nexus 7010, Nexus 5548 and Nexus 2k as per the requirement of the company.
• 24x7 on-call escalation support as part of the security operations team.
• Working closely with Data center management to analyze the data center sites for cabling requirements of various network equipment.
• Having Data Center Design Experience, installing and Configuring Network Devices in a Data Center including patching the cables in the Patch Panel. Design and implemented network
• Hands-on experience in the network management of circuits using TDM and Frame Relay Managing and providing support to various project teams with regards to the addition of new equipment such as routers switches and firewalls to the DMZs.
• Worked extensively in Configuring, Monitoring and Troubleshooting Cisco's ASA 5500.
• Experience in migration of MPLS Networks.
• Proficiency in configuration of VLAN setup on variousCiscoRouters and Switches.
• Provide escalation support to L1 members ofnetworkteam.
• Worked with different ISP globally for any WAN circuit and BGP routing issues. Opening up cases for CE routers, Riverbed optimizer issues.
• Work & escalate problems effectively in order to meet customer SLA's (service level agreements).
• Perform problem management and root cause analysis for customers as required.
• Efficient at use of Microsoft VISIO/Office as technical documentation and presentation tools.

Confidential, Dallas, TX

Network Engineer

Responsibilities:

• High level proficiency in TELCO provisioning activities including cost quoting requirements, tracking and delivery/acceptance testing.
• Configuration 7609, 7606 with OSPF and catalyst 6505, 4500, 3550 switches with various VLAN.
• Create and testCisco router and switching operations using OSPF routing protocol.
• Configuration and troubleshooting link state protocols like OSPF in multiple areas.
• Configured HSRP and VLAN truncking 802.1Q, VLAN Routing on Catalyst 6500 switches.
• Implemented MPLS VPN networks to test various problem reproductions in lab.
• Configured VLANs with 802.1q tagging. Configured Trunk groups, ether channels, and Spanning tree for creating Access/distribution and core layer switching architecture.
• Configured BPDU Guard, port-fast, uplink fast and other spanning tree features.
• Configuration and troubleshooting of Cisco 6500, 7500, 7200 Series routers.
• Provides support in a 24x7x365 days/year role that works to resolve all Telco T1 circuit outages for both CDMA and iDEN using network trouble ticketing system and remote T1 testing tool system for trouble verification. of T1 circuit faults, analysis, trending of faults and escalation.
• Provides real time and near real time responses to the WNMC, Telco, and ASA Management regarding CDMA/iDEN T1 circuit faults.
• Provides on-line knowledgeable assistance and coordination; facilitates efforts with Telco's, WNMC, and field engineers.
• Managing and supporting large scale MPLS & Frame relay on Cisco environment for more than 5000 Retail sites, 100 Distribution centers, 100 offices and 3 datacenters.
• Troubleshooting issues related to Layer 1/2/3 skills like switching / routing, WAN /Hardware and critical network links by coordinating with the vendor.
• Involved in Configuration of Access lists (ACL) on ASA firewall for the proper network routing for the B2B network connectivity.
• Provided proactive threat defense with ASA that stops attacks before they spread through the network.
• Performed troubleshooting, while maintaining trouble ticket tracking, following internal/external escalation procedures and customer notifications. Configured Cisco Routers for OSPF, RIP, IGRP RIPv2, EIGRP, Static and default route.
• Configured the Cisco router as IP Firewall and for NATting.
• Having Data Center Design Experience, installing and Configuring Network Devices in a Data Center including patching the cables in the Patch Panel. Design and implemented network

Confidential

Network Engineer

Responsibilities:

• Responsible for the configuration, implementation and operation of Cisco 3745 routers Cisco 6509 and 3560 L2/L3 switches.
• Removed Cisco 3600 and 2600 series routers and Cisco 2900 series switches from the current infrastructure and replaced them with the Cisco 6509 or 3560 L2/L3 switches.
• Configured RSTP, MST and used VTP with 802.1q trunk encapsulation. Provided port binding and port security wherever required. Provided router redundancy through HSRP.
• Configured ether channels using PAgP and LACP.
• Designed ACLs, VLANs, troubleshooting IP addressing issues and taking back up of the configurations on switches and routers.
• Provided testing for network connectivity before and after install/upgrade.
• Switching related tasks included implementing VLANS and configuring ISL trunk on Fast-Ethernet and Gigabit Ethernet channel between switches.
• Experience in Cisco switches and routers: Physical cabling, IP addressing, Wide Area Network configurations (Frame-relay and ATM).
• Configured Cisco Routers for OSPF, IGRP, RIPv2, EIGRP, Static and default route.
• Prepare, update, and maintain technical and logistical network documentation.
• Maintained complex LAN/WAN networks with several VLANS and provided support for routing protocols.
• Installing and configuring protocols like TCP/IP and Internet protocols including Local Area Networking, routing and HTTP.
• Member of Network Test team and responsible for routine Network test.
• Responsible for resolve any issue in routine Network test and need to escalate higher technical team, if there is any major issue.

Confidential

Network Engineer

Responsibilities:

• Upgrade Cisco 7200, 3600 Router IOS Software, backup Routers and Catalyst 2950, 2960, and 3560 switch configurations
• Support 24x7 operations and answer calls from the customers on network emergencies and resolve issues broad Hands on Experience in Inter-VLAN routing, redistribution, access-lists and dynamic NAT
• Experience with convert Checkpoint VPN rules over to the Cisco ASA solution. Migration with both Checkpoint and Cisco ASA VPN experience
• Worked on Extensively on Cisco Firewalls, Cisco PIX (506E/515E/525/) & ASA 5500(5510/5540) Series.
• Designed and implemented remote dial up solution for clients
• Install and manage Cisco Catalyst 3500XL, & 2960 series Switches and Cisco 1800, 3900 series routers
• Configured VLANs, Private VLANs, VTP and Trunking on switches.
• Hands on Experience in Inter-VLAN routing, redistribution, access-lists
• Involved in all technical aspects of LAN and WAN projects including, short and long term planning, implementation, project management and operations support as required
• Worked with cross-functional teams throughout the project life cycle.
• Conduct through analysis, problem solving, and infrastructure planning
• Provide assistance to Network Manager and serve as Secondary Network support.
• Troubleshoot and fix any backup and monitoring systems related issues in conjunction with Systems team and external vendors.