Network Engineer

Project Management Exceptional Technical Skills Strategic Planning and Execution Time Management and Prioritization Problem Resolution Interpersonal Relations Leadership and Team Building Oral and Written Communication

Professional Summary

A comprehensive and dedicated cisco certified network professional with about 6 years of experience in Designing, Implementation, Administration, Operations and troubleshooting of data networks.

• Comprehensive knowledge of CISCO networking technologies and protocols.
• Cisco Certified Network Associate CCNA currently pursuing CCNP certification.
• Experience in Designing, Implementation and Operations of enterprise data networks as Network Engineer.
• Proven track record of solving IP network issues in timely and cost efficient manner while maintaining client Service Level Agreements up time.
• Network analysis and capacity planning experience using tools like Sniffer, Wireshark, and Tcpdump.
• Management and Monitoring by use of SSH, Syslog, SNMP, NTP. This includes maintaining and updating inventory of all network hardware.
• Extensive hands on experience with Cisco Routers, Catalyst Switches, Cisco Firewalls and F5 - Load balancers.
• Extensive hands-on experience with T1/E1/T3 technologies and complex routed LAN and WAN technologies such as ATM, Frame-relay.
• Hands on experience in configuration and troubleshooting of routing protocols such as static route, OSPF, EIGRP, RIP and BGP with subnetting methods such as FLSM and VLSM.
• Worked with configuring BGP internal and external peers with manipulation of attributes such as community, MED, Cluster List, AS-PATH, metric, origin and local Preference.
• Knowledge in implementing and configuring F5 Big-IP LTM-3600, 6900 load balancers.
• Expertise in configuring Virtual Local Area Networks VLANs using Cisco routers and multi-layer switches and supporting STP, RSTP, PVST, RPVST along with trouble-shooting of inter-VLAN routing and VLAN trunking using 802.1Q
• Experience with LAN protocols like VLANS, STP, RSTP, MST, VTP, VLAN and Port Channel Protocols like LACP, PAGP with ISL and dot1q trunk.
• Cisco Secure Access Control Server ACS to authenticate users that connects to a company VPN
• Configured and deployed QOS and defined class of service COS WRED and WFQ for bandwidth management.
• Deployment of GRE tunnel, VPN remote access, Site-Site VPN-IPSEC authentication encryption system.
• Worked extensively in configuring, monitoring and troubleshooting Cisco's ASA 5500 Firewall with ACL, NAT, Object Groups, Failover, Multi-Contexts
• Well experienced in configuring gateway redundancy protocols like HSRP, GLBP and PPP.
• Exclusive hands on with route manipulation metric packet filtering using Access Control Lists Distribute lists, Route-maps Prefix- lists.
• Implemented Port Security and switch link aggregation using Port channel/Ether Channel.
• Experience with Project documentation tools implementing and maintaining network monitoring systems and experience with developing network design documentation and presentations using Microsoft Excel VISIO as well as ITIL process skills.

Switching:

VLAN Inter-VLANRouting STP RSTP PVST RPVST Ether Channel LACP PAGP VTP DOT1Q ISL

Routing:

RIP V2 OSPF EIGRP IBGP EBGP

Gateway Redundancy:

HSRP VRRP GLBP

LAN Technologies:

Ethernet Fast Ethernet Gigabit Ethernet Serial

WAN Technologies:

Frame Relay PPP HDLC T1/E1/T3

Security:

FSWM PIX ASDM Access List Prefix List ACS Route Maps Port Security

Quality of Service:

CBWFQ LLQ WRED WFQ Policing/Shaping

Management Monitoring:

SNMP Netflow Syslog NTP SSH

AAA Architecture:

TACACS RADIUS Cisco ACS

Software:

Solar winds Wireshark Ethereal Microsoft Visio Microsoft Office

Operating System:

Windows 2003 Server Red hat linux Cisco IOS-XR Unix

Programming Language:

C MATLAB SQL Database Management HTML CSS PHP ARM Assembly Language

Switches:

Cisco Catalyst2900 Cisco Catalyst 3500 Cisco Catalyst3750 Cisco Catalyst4500 Cisco Catalyst4900 Cisco Catalyst 6500 Cisco ASR 9000

Routers:

Cisco 2600 Cisco 2800 Cisco 3600 Cisco 3800 Cisco 3900 Cisco 7200 Cisco 7600 Cisco GSR 12016 Cisco 7200VXR Router

Firewall:

Cisco's ASA 5500 Checkpoint R 75

Loadbalancer:

F5 BIG-IP LTM 3600 F5 BIG-IP LTM6900 F5 BIG-IP GTM Series

Professional Experience

Sr. Network Engineer

Confidential

• Provide Tier 4 level technical support for network, including root cause analysis and permanent resolution where applicable.
• Work closely with the architects and teams to ensure co-operation within the company and develop and maintain the core global network based on the needs and services of the company.
• Performed network administration tasks such as creation and management of VLANs, port security, 802.1Q trunking, RPVST, Inter-VLAN routing and LAN security
• Configured and maintained OSPF BGP Protocols as well as trouble shooting of routing loops.
• Lead in the planning and delivery process of network design solutions
• Upgrading the backbone network which includes configuration of routers, coordinate with change management, documentation and working with service providers.
• Support existing LAN, WAN and enterprise network infrastructure, including design, implementation, migrations, documentation, and decommissioning
• Developed good theoretical knowledge on QoS with queuing like WFQ, WRR and DWRP and Multicasting.
• Responsible for network performance, monitoring/analysis, proactive troubleshooting and capacity analysis of network and proposing improvements and design changes beneficial to the business.
• Develop and maintain networking standards, documentation and techniques for deployment.
• Optimize WAN services to achieve enhancements in performance and availability while simultaneously achieving cost reduction
• Negotiated VPN tunnels using IPSEC encryption standards and also configured and implemented site-to-site VPN, Remote VPN.
• Worked on load balancers such as F5 BIG-IP LTM 6900, configured profiles and ensured high availability
• Responsible for executing initiatives to reduce failures, defects and improving overall network performance.
• Provide assistance and guidance to co-workers on best approaches, practices, and lessons learned
• Contribute to the development and ongoing improvement of Technical Support procedures and infrastructure.

Environment: Cisco 3750/3550/3500/2960 switches, Nexus 5000/4000 and Cisco 3640/12000/7200/3845/3600/2800 routers, Checkpoint R 75, F5 BIG-IP LTM 6900, RIP, OSPF, BGP, VPN, Ether Channels, Fluke and Sniffer

Network Engineer

• Designed and successfully Implemented LAN, WAN and Internet system for the Company's new project.
• Corporate project includes the exclusive migration of Legacy Catalyst switches with the Nexus 7000, 5000 and 2000 series switches.
• Installed and maintained CISCO 3600, 2600, 2900 and provided Gateway Redundancy by HSRP, VRRP while focusing on it importance during migration.
• Designed and implemented a new DMZ zone for Web servers, Mail servers and FTP servers using Cisco ASA 5540 firewalls.
• Router disaster recovery from crashes and checking logs for reason for crash and verifying if hardware or software issues on production routers.
• Responsible for ensuring problem identification, isolation and resolution within the service level objectives for routers, switches, wireless and associated network equipment
• Quickly resolve all IP network issues to reduce waste and downtime of a Network infrastructure.
• Configured port aggregation with Ether channel between distribution and access layer switches and monitoring it on a daily basis.
• Monitoring network to ensure network availability to all system users and performing necessary maintenance to support network availability.
• Worked on various network projects including Corporate Refresh, Server Farm migration, DMZ setup and HA deployment for Application via F5 LTMs.
• Network implementation such as applying, testing commissioning of leased circuits/Network devices.
• Ensure through network documentation, including backup configuration and Network diagrams
• Coordinated for any network related maintenance or infrastructure changes.

Environment: Cisco 6509/ 3750/3550/3500/2950 and Cisco Nexus 7000/5000/2000 switches, Cisco 7200/3845/3600/2600/2900 routers, CiscoASA 5540 firewall, F5 LTM loadbalancers, Net Flow, EIGRP, RIP, OSPF, BGP, VPN, Ether Channels, Sniffer and Wireshark.

Network Engineer

• Deployment of MPLS based VPNs across 34 sites in India and 22 sites across ASIA, US and Europe. Created and managed BGP policies at the internet peering points.
• Managed LDP label limit constraints on smaller routers such as 7500 by deploying LDP filters.
• Engaged Network Operations on troubleshooting and root cause analysis on Minor, Major network problems
• Implemented BGP capabilities like ORF, Route refresh and Extended communities, for various customers.
• Configuring, managing and troubleshooting networks using routing protocols like RIP, EIGRP and OSPF Single Area and Multi Area .
• Assisted with troubleshooting all network issues with routers and switches when necessary and consulted with on call tech as needed for client.
• Configured all devices for remote sites/plants, vendors and added new equipment to RADIUS and worked with MPLS-VPN and TACACS configurations.
• Created load balancing policies using BGP attributes such as Local Preference, AS-Path, MED, Community etc.
• Validate existing infrastructure and recommend new network designs.
• Created scripts to monitor CPU/Memory on various low end routers in the network.
• Monitor, troubleshoot, test and resolve Frame Relay, ATM, MLPPP, PPP, and Dial-up.
• Configuring/Troubleshoot issues with the following types of routers Cisco 7200, 6500, 4500, 1700, 2600 and 3500 series, to include: bridging, switching, routing, Ethernet, NAT, and DHCP, as well as assisting with customer LAN /MAN, router/firewalls.
• Worked on Channelized T1/T3 PRI links.

Environment: Cisco 4500/6500/9000 switches, Cisco 7200/7600/12000, BIG-IP LTM 3600/6900, Cisco ASA 5580 VPN, BGP, OSPF, LACP, PAGP and solar winds

Jr. Network Engineer

• Racking, stacking, and cabling network-based, IT systems.
• IOS upgrades on Catalyst 1900, 2900, 3500 series switches and 2500, 2600, 3600 series routers.
• Configuration of Access List ACL Std., Ext, Named to allow users all over the company to access different applications and blocking others.
• Configured and managed Cisco access layer routers and switches.
• Support Network Technicians as they require training support for problem resolution including performing diagnostics, configuring network devices.
• Participate in 24 x 7 incident problem support.
• Configured STP for loop prevention, VTP on Campus domain and Inter-VLAN Routing.
• Troubleshooting issues and outages on Trunks and Router interfaces extensively.
• Performed route redistribution manipulated route updates using distribute lists, route-maps administrative distance.
• Configuring of IP Allocation and sub netting for all applications and servers and other needs throughout company using FLSM, VLSM addressing.
• Troubleshooting issues related to routing protocols.
• Installing operating systems, software and hardware on computers.
• Assisting fellow Junior and Senior Engineers, on-site management of cable-wiring technicians.
• Troubleshooting problems on a day-to-day basis and documented every issue to share it with design teams.

Environment: Cisco 3750/3550/3500/2960 switches and Cisco 3640//3845/3600/2800 routers