SUMMARY:

• A dedicated Professional with 8+ years of expertise in Designing, Implementation, Administration, Operations and Troubleshooting of enterprise data networks as a Network Engineer.
• Worked on Cisco Catalyst series 2900, 3560, 3750, 4500, 4900, 6500 and Cisco 1800, 2600, 3600, 7200, 7600, ASR 9k routers.
• Worked on Nexus platform 7010, 5K series (5548, 5020 and 5010) and FEX (2248, and 2232) and deployed VPC, VDC and OTV and successfully implemented VSS on the cisco catalyst switches.
• Expertise understanding in implementing and configuring F5 Big - IP LTM-3900, and 6900 LOAD BALANCERS, maintained policies. Managed enterprise grade server/application load balancing using F5 LTM/GTM.
• Switching tasks include VTP, ISL/ 802.1q, IPSec and GRE Tunneling, VLANs, Ether Channel, Trucking, Port Security, STP and RSTP.
• Strong working experience on Firewalls, ACS, Cisco ASA 5540 Series.
• Proficient hands on experience in configuration & troubleshooting of routing protocols and deployment of OSPF, EIGRP, BGP and Policy routing on Cisco Routers.
• Experience in implementing, maintaining and troubleshooting L2 switching tasks such as
• VLANs, VTP, VLAN Trunking using ISL and 802.1Q, STP, RSTP, PVST+, Etherchannel using LACP and PAGP, Inter-Vlan routing.
• Implemented redundancy with HSRP, VRRP, GLBP, Ether channel technology (LACP, PAGP).
• Strong hands on experience on PIX Firewalls, ASA (5540/5550) Firewalls. Implemented Security Policies using ACL, Firewall, IPSEC, SSL, VPN, IPS/IDS, AAA(TACACS+ & RADIUS
• Expertise in implementing Security policies like NAT, PAT, IDS, IPS and Access lists.
• Had a good experience in implementing L2 and L3 VPN.
• Good Knowledge on Cisco Call Manager, Unity, and associated Voice Applications.
• Worked with MPLS in establishing peer ship with BGP protocol
• Good amount of knowledge about various WAN technologies such as Frame-Relay, PPP and HDLC.
• Implemented traffic filters using Access-lists, Distribute-Lists, Route Maps and route manipulation using Offset-list.
• Managed inventory of all network hardware, Management and Monitoring by use of SSH, Syslog, SNMP, NTP. Proficient in using MS Visio for documentation.
• Experience in T1/E1/T3 technologies and different LAN & WAN technologies.
• Excellent working knowledge of TCP/IP protocol suite and OSI layers.
• Good knowledge and experience in Installation, Configuration and Administration of Windows Servers 2003/2008, Active Directory, FTP, DNS, DHCP, TFTP, Linux OS under various LAN and WAN environments
• Juniper SRX- Series services, Gateways, Juniper Net Screen/SSG based firewalls, Juniper J/M/MX series routers
• Knowledge about Blue Coat.

TECHNICAL SKILLS:

Cisco Routers: 2600, 2900, 3600, 3800, 7200 and 7600

Cisco L2 & L3 Switches: 2900, 3560, 3750, 4500, 4900 and 6500

LAN Technologies: Ethernet, Fast Ethernet, and Gigabit Ethernet, VLAN, Inter-VLAN Routing, VTP, STP, RSTP

WAN Technologies: Frame Relay, PPP, HDLC, (E1/T1/E3T3)

Switching Technologies: VLANs, Inter VLAN routing and Port Channels, VTP, Spanning Tree

Protocols like: PVST+, RSTP+, Multi-Layer Switching, and Port security VSS, CEF and DCEF. Nexus 5548, 5596, 6000, 7009, 7018; Cisco

Catalyst: 6506, 6509, 4928, 4948, 4507, 4510, 3750, 3560, and 2960.

Network Security: Cisco ASA (5512/5550/5585), ACL, IPSEC, Soniwall Firewall WatchGuard Firewall

Server Operating System: Windows Server 2008, 2012

Desktop Operating System: Windows 7/8/10, Mac OSX

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

Gateway Load Balancing: HSRP, VRRP, GLBP

Network Mgmt. Tools: Wire shark, Net flow Analyzer, Cisco Prime Infrastructure, SNMP, SYSLOG

Security Server Protocols: TACACS+, LDAP, RADIUS

Load balancer: F5 load balancer

VPN: IPsec & SSL VPN both Site-to-site and Remote VPN

Google Business Apps: Email and other App managing & administration, Email archiving

Microsoft Office 365: AD (Azure) User management, SharePoint

Ticketing System: IT Desktop Support ticketing system, JIRA

NEXUS Features: VDC, VPC, VSS, VRF.

Forensic tools: FTK, Encase, MPE+

PROFESSIONAL EXPERIENCE:

Sr. Network Engineer

Confidential, Oh

Responsibilities:

• Involved in the activity of DATA-Center migration of regular Cisco catalyst switches with the new Nexus 2148, 2224T, 5548, 6018, 7010 using F3/M3 line-cards with 10GE & 40GE interfaces and Supervisor 2E.
• Performed migration from Legacy Catalyst 6509 with SUP-720, Catalyst 4507 with SUP-6 to Nexus 7k with SUP-2E as part of the data center refresh.
• Deployed VSS on Cisco Catalyst 6509 switches and provided post-deployment support for issues.
• As part of Data Center fabric remediation/refresh project, deployed Cisco Nexus switches and implemented features like FEX Links, VPC and VDC.
• Migration of existing IPSEC VPN tunnels from one Data Center to another Data Center, due to decom of existing Data Center, which involved working with Partner Companies.
• Involved in the troubleshooting aspects of complex network infrastructure using routing protocols like EIGRP, OSPF and BGP.
• Experience with converting WAN routing from EIGRP/OSPF to BGP (OSPF is used for local routing only) which also involved converting from Point to point circuits to MPLS circuits.
• Configured and deploying Cisco Catalyst 6506, 4948E, 4510 switches and Cisco 3660, 3845, and 7609 series routers.
• Applied ACLs for Internet access to the servers using Cisco 5550 ASA firewall and performed NAT.
• Designed and implemented DMZ for Web servers, Mail servers & FTP Servers using Cisco ASA5500 Firewalls.
• Performed load balancing and application level redundancy by deploying F5 BIG-IP LTM 3900.
• Supported in giving access the User machines and partners exterior to the network using IPsec VPN tunneling and SSL.
• Dealt with the service providers in the case of WAN outages.
• Responsible for simulating network operations with the usage of packet analyzer like Wire shark, and use to resolve tickets whenever there is an issue.
• Had hands on experience in configuring and implementing Prefix-lists, Route-maps, Ether-channels.
• Hands on experience with MX5, MX10, MX40, MX80, MX240, MX480 juniper routers
• Hands on experience with EX2200, EX3200 Juniper Switches and with SRX100, SRX210, SRX1400 juniper firewalls.

Network engineer

Confidential, Seattle, Wa

Responsibilities:

• Key responsibility of LAN and WAN maintenance and troubleshooting any network related problems.
• Installation, Configuration and Administration of ADS,DNS,DHCP and Web proxy(ISA)server
• Tuned according to the requirements of the organization for deploying and maintaining the routers and switches.
• Experience in deploying EIGRP/BGP redistribution and the changing the metrics for the primary and backup.
• Performed IOS upgrade on Cisco 7200, 3600 Router and making sure that there is high data availability.
• Responsible for turning up BGP peering and customer sessions, as well as debugging BGP routing problems
• Provided high level of security to the network by installing ASA 5520 along with ACLs.
• Extensively worked on layer 2 features like STP, VLAN, and VTP and implemented them on new switches and used to troubleshoot any issues.
• Tasks included in performing network administration issues like configuring RPVST+, Port security etc.
• Dealt with troubleshooting the EIGRP and OSPF protocols during the process of migration and establishing new client setups.
• Configured OSPF redistribution and authentication with type 3 LSA filtering and to prevent LSA flooding
• Worked on OSPF using features like TSA, SA, NSSA and route summarization. Configured EBGP/IBGP policies also tested BGP attributes such as Local preference, MED, AS-PATH, Community and Weight.
• Configuring IPSEC VPN on SRX series firewalls.
• Responsible for resolving service request tickets from the help desk which involved in providing complete technical support.
• Involved in design and implementation of data center migration, worked on implementation strategies for the expansion of the MPLS VPN networks

Network engineer

Confidential

Responsibilities:

• Documented the company’s design, implementation and troubleshooting procedures.
• Monitored the Network performance based on company’s Service Level Agreement (SLA).
• Experience on HSRP for Load Balancing.
• Involved in configuring and implementing of composite network models consists of Cisco 7600, 7200, 3800 series and ASR 9K, GSR, 12K routers and Cisco 2950, 3500, 5000.6500 series switches.
• Testing the new zone for failover capabilities and redundancy. Connected the Distribution routers to the Core routers via OSPF areas.
• configured policy based routing for BGP for complex network systems
• Implement various OSPF scenarios on networks consisting of 7600 routers
• Configured multiprotocol Label Switching (MPLS) VPN with routing Information Protocol (RIP) on the customer's site.
• Configured VLANs with 802.1Q tagging according to the Server team’s requirements.
• Involved in troubleshooting of DNS, DHCP and other IP conflict problems.
• Performed IOS upgrades on various catalyst series switches and maintained latest IOS versions according to company’s policy.
• Responsible for cabling and labeling based on day to day requirement, and Racking & Stacking of various network equipment and made sure that there are no connectivity issues using ping and traceroute.
• Resolving all computer related problems, such as troubleshooting operating system failure, scheduling and updating virus checks on servers and desktops