SUMMARY

• Experience in working with Cisco Catalyst series 2900, 3560, 3750, 4500, 4900, 6500.
• Experience in working with Cisco 2800, 3600, 3800, 3900 series Routers.
• Implementing, maintaining and troubleshooting switching tasks such as VLANs, VTP, VLAN Trunking using ISL and 802.1Q, STP, RSTP, PVST+, Ether channel using LACP and PAGP, Inter - Vlan routing, CEF and DCEF.
• Experienced in configuring, deploying, maintaining, and troubleshooting of routing protocols like RIP, OSPF, EIGRP, Policy routing, and BGP on Cisco routers.
• In-depth knowledge on Route Manipulation, Filtering and troubleshooting route re-distribution across multiple protocols.
• Worked on implementing first hop redundancy protocols like HSRP, VRRP, and GLBP.
• Network security policies like NAT, PAT, VPN, DMVPN, Route-maps and Access lists.
• Worked on WAN technologies such as Frame-relay, PPP, HDLC, and DS3.
• Maintaining and updating inventory using Network Management Application layer softwares like SNMP, Wireshark, NTP, and Syslog.
• Configured Cisco Wireless NetworkslikeIEEE 802.11 a/b/g/n, LWAPP, WLC, WCS, Standalone APs, Roaming, Wireless Security Basics, RF spectrum characteristics.
• Performed security operations on ASA firewalls.
• Managed enterprise grade server/application load balancing using F5 LTM/GTM.
• Drawing Visio Diagrams using MS Visio for documentation purposes

TECHNICAL SKILLS

Routers: Cisco 2600, 3600, 3800, 7200, 7600.

Cisco Catalyst Switches: 2960, 3750, 4500, and 6500

LAN Technologies: Ethernet Standards, VLAN, Inter-VLAN, VTP, STP, RSTP, SMTP, Ether Channel, PortFast, ACL, Light weight access points

WAN Technologies: Frame relay, (E1/T1/E3/T3) lines, PPP, HDLC.

Routing Protocols: RIP V1/V2, EIGRP, OSPF, BGP, Static Routing, Summarization

Gateway Redundancy: HSRP, VRRP, GLBP, Ether channel technology (LACP, PAgP)

Network Security: Cisco ASA, IPSEC

Network Management Tools: Wireshark, Netflow Analyzer

Applications: MS Office, MS Visio 2010

Operating Systems: Windows (98, 2000, XP, 7)

Load Balancers: Cisco CSM, F5 Networks

PROFESSIONAL EXPERIENCE

Confidential, Secaucus, NJ

Sr. Network Engineer

Responsibilities:

• Worked with Cisco Layer 3 switches 3750, 4500, 6500; in multi VLAN environment with the use of inter-VLAN routing, 802.1Q trunk, ether channel.
• Installed Catalyst 6509E switches with 40GE and 10GE line cards; ConfiguredVSS on it.
• Performed daily network operations including checking sanity and health of network devices using NMS. Performed network configuration remediation and standardization.
• Configured policy statements, routing instances, route manipulation on RIP, OSPF and BGP.
• Configured and deployed BGP multi-homing and did operations on day to day basis with ISP peer-ship and troubleshoot internet based performance issues.
• Performed WAN link commissioning and troubleshooting, including coordinating with the ISP for new WAN links, and outages.
• Implemented GRE tunneling, Site-to Site VPN& multipoint DMVPN using IPSEC.
• Configuration and deployment of Cisco ASA 5540 firewall for Internet Access requests for servers, Protocol Handling, Object Grouping and NAT.
• Performed advanced troubleshooting on ASA firewalls using packet flow & packet capture methods.
• Deployed new DMZ environment from scratch for the new hosting environment.
• Configured and deployed Application based load balancing using F5 LTMs & site level load balancing on F5 GTMs using 3900 & 6900 BIG-IP appliances.

Confidential, Columbus, OH

Network Engineer

Responsibilities:

• Troubleshooting day-to-day switching issues with VTP and trunking protocols (like 802.1q and ISL) on catalyst 3560, 3750 and 4500 switches.
• Installation, Maintenance, Troubleshooting Local and Wide Areas Network (ISDN, Frame relay, NAT, DHCP, TCP/IP).
• Participated in on call support in troubleshooting the configuration and installation issues.
• Maintained redundancy on Cisco 2600, 2800 and 3600 router with HSRP.
• Performed Network Security Assessment and implemented security improvements such as network filtering, SSH, AAA, SNMP access lists, VTY access lists, EIGRP MD5 authentication, and HSRP authentication
• EIGRP & OSPF routing protocol configuration and administration.
• Maintained TCP/IP problems troubleshoot connectivity issues in multi-protocol Ethernet environment.
• As part of Network operations, worked on multiple tickets as per priority and severity levels.
• Performed security operations by adding rules in firewalls and pushing firewall policy as per the incidents and rules requests from users.
• Performed firewall troubleshooting by analyzing rules and traffic flow.
• Worked on Documentation like creating solution documents and Visio diagrams.

Confidential

Jr. Network Engineer

Responsibilities:

• Performed IOS upgrades/Password recovery on Catalyst 1900, 2900 series switches and 2500, 2600 series routers.
• Did racking, stacking, and cabling network-based, IT systems
• Configured Access List ACL (Std., Ext, Named) to allow users all over the company to access different applications and blocking others.
• Configuring of IP Allocation and sub netting for all applications and servers and other needs throughout company using FLSM, VLSM addressing.
• Troubleshot the issues related to L1 and L2 levels.
• Network maintenance checks, configure and manage printers, copiers, and other miscellaneous network equipment.
• Installing operating systems, software and hardware on computers.
• Responsible for Data Backup, System Update, Recovery and Restore, and Spyware removal.
• Assisting Junior and Senior Engineers, on-site management of cable-wiring technicians
• Troubleshoot problems on a day to day basis and documented every issue to share it with design teams.