SUMMARY:

• CCNA and CCNP certified Network Administrator with around 7 years of experience with expertise in implementation, administration, analysis and support of LAN and WAN.
• In - depth knowledge of TCP/IP protocol suite and proficiency in configuring and troubleshooting various routing protocols like EGP, IGP, Static routing and management of routes using manual summarization, default-routes and redistribution.
• Experience in implementing, maintaining and troubleshooting L2 switching tasks such as VLANs, VTP, VLAN Trunking using ISL and 802.1Q, STP, RSTP, PVST+, Q-in-Q, Etherchannel using LACP and PAgP, Inter-VLAN routing, CEF and DCEF.
• Extensive work experience in designing with Cisco Routers, Cisco Switches, Load Balancers and Firewalls.
• Experience with setting up Cisco ASA firewalls Cisco ASA 5500 & Pfsense with restricted security policies.
• Enabled Authentications such as WPA2, PAP/CHAP, and AAA.
• Maintaining and updating inventory of all network hardware, Management and Monitoring by use of SSH, Syslog, SNMP, NTP.
• Excellent customer management/resolution, problem solving, debugging skills and capable of quickly learning, effectively analyses results and implement and delivering solutions as an individual and as part of a team.
• Experience in implementing, maintaining and troubleshooting Cisco Unified Communications Manager (CUCM) and Cisco Unified Communications Manager Express.
• Knowledge in JunOS test environment (GNS3)
• Open Source (Quagga (Routing in Linux), HAProxy (Load Balancer), Proxmox (Virtual Machine), Asterisk (PBX)), GNS3.

TECHNICAL SKILLS:

Routers: Cisco 3800, 3600, 2900, 2800, 2600,1800,1700

Switches: Cisco Catalyst 2900, 3500, 3700,6500, 4500, 3850,3560, 3750.

Internet Protocols: MPLS, IGP, BGP, Route Filtering, Redistribution, Summarization and Static Routing

Switching Protocols: LAN, VTP, STP, Inter VLAN routing & Multi-Layer Switch, Etherchannels

Network Security: Cisco ASA 5510/5515-X, IOS Firewall features, Blue Coat, Pfsense.

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

WAN: PPP, HDLC, Channelized links (T1/T3), VOIP

Gateway Redundancy: HSRP, VRRP and GLBP

Various Features and Services: IOS and Features, NAT, SNMP, SYSLOG, NTP, DHCP, CDP, TFTP, FTP.

AAA Architecture: TACACS+, RADIUS

Network Monitoring Tools: Wireshark, SNMP, SolarwindsOperating Systems/Software: Linux, Windows, FTP Server, Proxy Server, MS Visio

QoS: Quality of Service Queuing (CBWFQ, LLQ), Traffic Shaping, RED/WRED

PROFESSIONAL EXPERIENCE

Confidential

Sr. Network Administrator

• Performed OSPF, BGP, DHCP Profile, HSRP, IPV6, Bundle Ethernet implementation on ASR 9K redundant pair.
• Implemented a backup for the existing WAN connection using site-to-site IP sec VPN tunnels.
• Cisco ASA Firewall troubleshooting and policy change requests for new IP segments that either come on line or that may have been altered during various planned network changes on the network.
• Involved in Switching Technology Administration including creation and management of VLANs, Port security, Trunking, STP, InterVlan routing and LAN security.
• Upgrade Cisco Routers, Switches and Firewall (ASA) IOS using TFTP.
• Deployed a large-scale HSRP solution to improve the uptime of collocation customers, in an event where a core router became unreachable.
• Involved in L2/L3 Switching Technology Administration including creating and managing VLANs, Port security, Trunking, STP, Inter-VLAN routing, LAN security.
• Monitored network for optimum traffic distribution and load balancing using SolarWinds.
• Validation of existing infrastructure and recommended new network designs.
• Responsible for developing, coordinating, exercising, assessing, and communicating the Enterprise IT disaster recovery and restoration (DR&R)
• Redesign of network infrastructure to meet high availability requirements
• Replacement of Cisco 5520 ASA with 5515X. Migrating VPN, ACL, NAT etc. Configuration from 8.2 version of software to version 9.3
• Create test environment on GNS3.

Confidential

Network Administrator

• Responsible for implementing, supporting, and maintaining 24x7 network services.
• Support, monitor and manage the IP network.
• Performance monitoring of various applications and web servers to maintain quality of service and network stability.
• Change management, monitoring network performance with network tools. .
• Preformed maintenance on equipment as necessary, performing device upgrades, modification of configurations, password changes and diagnostic testing.
• Worked with vendors and Engineering team to test new hardware and procedures.
• Prepared and maintained documentation using MS Visio.
• Route configuration and point code checks for System Technician and Network Technician.
• Worked with other team members in testing of the network architecture.
• Performing network monitoring, providing analysis using various tools like Wireshark, Solarwinds etc..
• Installed various network hardware including concentrators, bridges, and hubs to establish communication connections with remote locations.

Confidential

Help Desk

• Optimized performance of the WAN network consisting of Cisco 3550/4500/6500 switches by configuring VLANs.
• Coordinated efforts with Engineer’s to ensure all network devices conformed to defined network standards.
• In-depth expertise in the implementation, optimization, troubleshooting and documentation of LAN/WAN networking systems.
• Creating dedicated VLANs for Voice & Data with QoS for prioritizing VOICE over DATA
• Managed and developed network projects designed to strengthen network continuity and deploy security elements in an attempt to meet and exceed contract requirements, including system analysis and troubleshooting.