Name : Jagadish Singu

Phone: =+1-669-***-****

Email: addu2u@r.postjobfree.com

LinkedIn: Jagadish Singu

PROFESSIONAL SUMMARY:

8+ years of experience in Networking, including hands-on experience in providing network installation, network integration, network support, and analysis for a broad range of LAN/WAN/MAN communication systems.

Hands on experience and demonstrated knowledge on the Routing & Switching, Network Security, Information Security.

Hands on experience Cisco IOS/IOS-XE/IOS-XR/NX-OS, Juniper JUNOS, Aruba OS, Arista EOS, PAN-OS, IPSO/r for configuration and troubleshooting

Hands on experience with Juniper Pulse setup in DMZ and inside environment for remote SSL VPN setup.

Worked on application acceleration service on pulse and deploying pulse secure agent on clients machines.

Hands on experience and demonstrated knowledge on the Red Hat Enterprise Linux (RHEL), Ubuntu OS, CentOS, and Kali Linux.

Experience with Azure cloud connectivity using express routes. Configured express routes and NSG in cloud security center, cloud application security.

Hands on experience Zscaler cloud proxies ZIA and ZPA. Worked on setting up tunnels to Zscaler Zens, zero trust network access.

Experience with setting up AWS direct connect to Amazon S3, Amazon EC2, Amazon VPC.

Worked on traffic flows from on-premises to AWS, AWS to internet via virtual palo alto firewalls for service that include PAAS and IAAS.

Experience with Palo Alto and checkpoint firewall features with next generation firewall features that includes app id, threat id, URL filtering, SSL decryption.

Thorough knowledge and hands on experience of Spine-Leaf Architecture, CISCO ACS, Arista cloud vision.

Experience with SD-WAN solutions for optimization of WAN traffic. Hands on experience with creating in path rules, traffic policies, troubleshooting issues related to delay, jitter, throughput on Riverbed Steelhead.

Hands on experience on the Python and Ansible scripting.

Experience with F5 and AVI networks for application load balancing.

Experience with network segmentation using illumio and Palo Alto firewalls for traffic filtering and applying policies on illumino central manager.

Hands on experience with data center technologies that include spine leaf, CISCO ACI, Arista cloud vision.

Experience utilizing industry standard network management tools such as Riverbed, OpenView HPNA, and NNM.

Also have knowledge on diagnostic logging and tracing capabilities along with client-load balancing.

Routing & Switching:

Working Knowledge and demonstrated experience on the Cisco Juniper, HP Aruba, Avaya, and Arista switches & Routers.

Working Knowledge and demonstrated experience on the Cisco Catalyst 2960, 3750, 3850, Cat 9K, Cat 4500X, Cat 6500 switches; Nexus 2k, 3k, 5k, 7k, and 9k series switches.

Working knowledge and demonstrated experience on the Cisco ISR 800 series, 1000 series, 4000 series; ASR 1000 series, 5000 series, 9000 series; IOSXRV 9000, Meraki vMX100 virtual routers.

Working knowledge and demonstrated experience on the Juniper EX 2200 series, EX 2300 series, EX 3400 series, QFX 5120 series; MX5, MX40, PTX series, and T4000 Core Routers.

Working knowledge and demonstrated experience on the HP Aruba 2920 series, 2930 F series, and 5400R series switches.

Working knowledge and demonstrated experience on the Arista 7150S series, 7160 series, and 7260QX series switches; 7508R routers.

Extensive knowledge in configuring and troubleshooting Layer 3 Interior Gateway Routing protocols such as Link-State routing protocols (OSPF and IS-IS), Distance Vector routing protocols (RIPv1, RIPv2 and EIGRP), Static Routing, Default Routes, and Exterior Gateway Routing Protocol (BGP).

Hands-on experience on implementation and troubleshooting complex layer 2 technologies such as VLANs, SVI, Trunks, VTP, EtherChannel, DTP, STP, RSTP and MSTP; Implementation of HSRP, VRRP, GLBP for Default Gateway Redundancy.

In-depth knowledge and hands-on experience in ISP Routing Policies, Network Architecture, IP Addressing and Subnetting, ARP, VLSM, TCP/IP, MPLS, NAT, ACL, DHCP, DNS, FT1 / T1 / FT3 / T3 SONET POS OCX / GigE circuits.

Thorough knowledge and hands on experience on the data center technologies such as VDC, VPC, VXLAN, FEX, OTV, FCoE, and Fabric Path.

Hands on experience with the troubleshooting of DNS, DHCP, and other IP conflict problems.

Extensive knowledge and hands on experience on the configuration of Site-to-Site IPSec VPN, SSL VPN, and DMVPN.

Implementation of Quality of Service (QoS) through the QoS models, tools, mechanisms, and algorithms to avoid the congestion.

Experience with Windows DNS and DHCP; Migration experience from Windows to Infoblox.

Network Security:

Working knowledge and demonstrated experience on the Palo Alto, Check Point, Cisco ASA, and FortiGate firewalls.

Working knowledge and demonstrated experience on the PAN-OS 6, 7.1, and 8.0 versions; PA 220, PA 820, PA-2K, PA-3K and PA-5K firewalls.

Thorough knowledge and hands on experience on the Palo Alto firewall User-ID’s, App-ID’s, SSL Decryption, URL Filtering, Policies, Zone Protection, High Availability, and Certification Management.

Working knowledge and demonstrated experience on the Check Point Firewall R77, R80 versions; 3000, 5000 series security gateways.

Hands on experience on the configuration and management of Gateways, Groups, user accounts, access control policies, user accounts, threat prevention policies, VPN tunneling, and High Availability.

Working knowledge and demonstrated experience on the Cisco ASA 9.7, 9.9 versions; ASA 5500-X Firepower series.

Thorough knowledge and hands on experience with the Cisco Firepower NGIPS/IDS.

Hands on experience with the FortiGate 100, 200, 600 series Next Generation Firewalls.

Configured remote VPN connectivity, IPS/IDS, Unified Threat Management on the FortiGate firewall.

Thorough knowledge and hands on experience with the application of LAN Security practices such as DHCP snooping, Port Security, Dynamic ARP Inspection (DAI), IEEE 802.1X, and IP Source Guard (IPSG).

Load Balancers:

Hands on experience and demonstrated knowledge on the F5 Load Balancers, Citrix NetScaler.

Administered in implementing and configuring F5 Big-IP LTM-6400 load balancers.

Configured and implemented F5 BIG-IP, LTM, GTM load balancers to maintain global and local Traffic.

Hands-on experience on F5 LTM, GTM series like 6400, 6800, 8800 for the corporate applications and their availability. Experience on Virtual Servers, Pools, Persistence, iRules, Listener IP’s, WideIP’s, SSL, HTTP and TCP headers.

High level experience with F5 LTM, GTM and APM modules. Experience with load balancing internal and external applications. Worked on BIGIP 5000 and Viprion series up to version 13.X.

Proficient and high-level expertise using the F5 based profiles, monitors, VIP’s, pools, SNAT, SSL offload, SSL pass through, SSL bridging, iRules, iAPPs. Migration experience from ACE to F5/ old F5 to New F5. Expert in TMSH. TMG to F5 migration in DMZ.

Experience with F5 Viprion Series. Configured vCMP, provisioned resources, installed and configured Viprion series from scratch for LTM, GTM, APM and ASM modules.

Wireless Networking:

Working knowledge and demonstrated experience on the Cisco, HP Aruba wireless networking.

Worked on the deployment and installation of Wireless Access Points, and their management through Wireless LAN (WLAN) Controller from scratch.

Hands on experience with the integration of Cisco WLAN controller with Cisco ISE for access control.

Hands on experience with cisco Aironet 500 series, 1800 series, 2800 series, 3800 series Wireless Access Points (WAPs) and their management through the 3504 and 3650 Wireless LAN Controllers (WLCs).

Worked on the configuration of AP groups, LWAPs, Guest networks, SSID’s, Authentication rules, RRM, Signal strength issues. Provisioning AP’s etc.

Network Monitoring:

Hands on experience and demonstrated knowledge on the Network monitoring tools such as SolarWinds, Cisco Prime, Wireshark, Splunk, ELK, Catchpoint, Extrahop and Moogsoft.

Hands on experience with the Bluecoat Proxy and Infoblox for the DNS, DHCP, and IPAM (DDI).

Used ChatOps and chatbot tools for incident management.

CERTIFICATIONS:

Cisco Certified Network Associate (CCNA)

Cisco Certified Network Professional (CCNP)

Palo Alto Accredited Configuration Engineer (ACE)

EDUCATION:

Bachelor’s in computer science and Engineering May 2007-April 2011

Sri Indu College of Engineering and Technology, Jawaharlal Nehru Technological University, Hyderabad, India.

PROFESSIONAL EXPERIENCE:

Alaska Airlines, Seattle, WA Dec’19 – May’20

Sr. Network Engineer

Responsibilities:

Responsibilities included installation, configuration, maintenance and troubleshooting of the corporate network, monitoring network performance using various network tools to ensure the availability, integrity and confidentiality of application and equipment and to provide support for Cisco network.

Reviewing, analyzing, approving and executing all changes in the network. All Configurations of Cisco Routers and Switches.

Responsible for FortiGate and CISCO ASA firewall management and operations across our global networks.

Experience working with Layer 3 Routing Protocols OSPF and BGP.

Experience working with BGP attributes such as Weight, Local-Preference, MED and AS-PATH to influence inbound and out bound traffic.

Implemented EBGP peering between all the branch offices.

Created Designs for guest network and mobile access network for NAC solutions.

Proactively monitored and managed all productions network systems to maximize system availability in Citrix Netscaler.

Created network diagrams using MS VISIO for remote offices.

Configured and deploy Riverbed steelhead at remote locations.

Installed FortiGate’s 100E, 600E & 60E Forti manager & Forti analyzer and Implemented layer seven capabilities.

Experience in working with Nexus 7010, 9396, 5548, 5020, 2148, 2248 devices.

Experience in configuring vdc, fex pinning, fex port-channel, port-channel, peer keep alive, peer link.

Experience consisting of Global load balancing, Local load balancing, SSL acceleration, HTTP compression.

Involved in the modification and removal (wherever necessary) of BGP from the MPLS routers.

Involved in complete LAN, WAN development (including IP address planning, designing, installation, configuration, testing and maintenance).

Involved in Switching Technology Administration including creating and managing VLAN’s, Port security, Trunking, Inter-VLAN routing, LAN security etc.

Configured HSRP and VLAN trunking 802.1Q, VLAN routing on catalyst 9300 switches.

Implementing and Maintaining Network Management tools (Solar Winds, Zenoss, Infoblox, IPAM)

Experienced in assigning the IP address dynamically to the end devices and involved in the migration of DHCP server.

Designed, validated and implemented LAN, WLAN & WAN solution to suite client’s needs.

Configured and designed LAN networks with Access layer switches such as Cisco 4510, 4948, 4507 switches.

Responsible for turning up BGP peering and customer sessions, as well as debugging BGP routing problems.

Proficient in using solarwins network management tools like network performance monitor, Netflow traffic Analyzer NCM and cisco prime.

Worked on Packer filtering and Analyzation using Wireshark in the Corporate Network

Configured and maintained Cisco-Mearki to manage Remote Branch office networks and security cameras.

Worked 24X7 network supports for ON-CALL & maintained 99.98% uptime of the system.

Documented all the work done by using Visio, Excel & MS word.

Comcast, San Jose, CA Dec’18 – Nov’19

Sr. Network Engineer

Responsibilities:

Responsible for designing and implementation of network and Security infrastructure.

Experience in working with Nexus 7010, 9396,5548, 5020, 2148, 2248 devices.

Experience in configuring vdc, fex pinning, fex port-channel, port-channel, peer keep alive, peer link.

Experience in working and designing configurations for vPC, vPC domain, vpc peer-gateway, vPC peer-switch, auto-discovery, vPC single sided, vPC double sided, NX-OS, Vfr, Otv, fabric path.

Experience with configuring Nexus 2000 Fabric Extender (FEX) which acts as a remote line card (module) for the Nexus 5000.

Experience with Cisco ACI on VXLAN’s, VTEPS, VNID’s, EVPN, Bridge Domains, Tenants, Application profiles, Contracts etc. on ACI. Thorough understanding of Spine Leaf Architecture.

Experience working with Layer 3 Routing Protocols OSPF and BGP.

Configured and maintained VPCs with 7010/7018 and 5548 in the network and maintained VDCs in 7k switches, maintained VRFs in those separate VDCs.

Worked on ACE, A10 load balancers. Experience with F5 load balancers - LTM, GTM series like 6400, 6800, 8800 for the corporate applications and their availability.

Worked in updating the Ciphers Suits to the VIP’s in A10 and worked on enabling and disabling the Backend servers.

Experience consisting of Global load balancing, Local load balancing, SSL acceleration, HTTP compression.

Involved in the modification and removal (wherever necessary) of BGP from the MPLS routers.

Involved in complete LAN, WAN development (including IP address planning, designing, installation, configuration, testing and maintenance).

Involved in Switching Technology Administration including creating and managing VLAN’s, Port security, Trunking, Inter-VLAN routing, LAN security etc.

Configured HSRP and VLAN trunking 802.1Q, VLAN routing on catalyst 6500 switches.

Implementing and Maintaining Network Management tools (Solar Winds, Zenoss, Infoblox, IPAM)

Experienced in assigning the IP address dynamically to the end devices and involved in the migration of DHCP server.

Responsible for Palo Alto, Checkpoint firewall management and operations across our global networks.

Working with Palo Alto, Checkpoint Support for resolving escalated issues.

Designed, validated and implemented LAN, WLAN & WAN solution to suite client’s needs.

Configured and designed LAN networks with Access layer switches such as Cisco 4510, 4948, 4507 switches.

Responsible for turning up BGP peering and customer sessions, as well as debugging BGP routing problems.

Worked on Packer filtering and Analyzation using Wireshark and Riverbed in the Corporate Network

Configured and maintained Cisco-Mearki to manage Remote Branch office networks and Internet connectivity.

Worked 24X7 network supports for ON-CALL & maintained 99.98% uptime of the system.

Documented all the work done by using Visio, Excel & MS word.

Goldman Sachs, Manhattan, NYC Feb’18 – Nov’18

Sr. Network Engineer

Responsibilities:

Responsible for three open source projects like Elasticsearch, Logstash and Kibana.

Hands-on experience on taking care of server-side data processing pipeline and sending it to ‘stash’.

Played key role in documentation of Root Cause Analysis (RCA).

Worked on the implementation of Infoblox DNS, DHCP, and IPAM (DDI) for the network.

Experienced in creating Python apps to automate the daily networking tasks like configuring devices, network information collection and testing by client simulations.

Assisted the networking team on the installation of 7800, 6900, and 3900 series IP phones.

Assisted the team in the configuration of Cisco Unified Communications Manager (CUCM).

Working knowledge and demonstrated experience on the Arista 7150S series, 7160 series, and 7260QX series switches and 7508R routers.

Used Python for capturing, decoding and analyzing the network packets.

Played key role in providing support for the organization for service improvement.

Hands-on experience with ITIL processes like knowledge management, service validation and testing, release and deployment management.

Experienced on querying SNMP objects on the network devices.

Functional Knowledge and hands on experience with the Citrix infrastructure components such as Web interfaces, PNA Server, NetScaler setup and administration, License Server management, EdgeSight. Management and configuration of RSA SecurID Server.

Formulated group policies for Citrix and NetScaler apps, and NetScaler review for load balancing high value web system.

Hands on experience and demonstrated knowledge with the deployment of NetScaler, rolling out the applications, and their integration.

Experience working with migration from 4500 series devices to 6500 Series switches in Campus deployments at Core and Distribution Layers.

Worked on the installation and configuration of HP Aruba 207, 300, and 330 series Wireless Access Points (WAPs) and their management through the HPE 7220 Mobility Controller and DMZ, PAT, SSL Encryption, App-IDs on the Palo Alto firewall.

Worked on the configuration and installation of HP Aruba 2520, 5400 R series switches and HSR routers.

Hands on experience with the working of protocols such as SIP, RTP, RTSP, and IGMP for supporting the Voice, Data, and Video networks.

Experience in the deployment & troubleshooting F5 Load Balancer includes BIGIP Series 5050V, 10000V, 8900, 6900, and 3900.

Worked on 2600, 3500, 7613 Routers, implemented OSPF and BGP and performed route filtering and route manipulation by applying distribute-lists, route-maps & offset lists.

Translating Cisco IOS Route maps to Cisco IOS XR Routing policies.

Worked on the migration from Cisco ASA to the Palo Alto firewall and the configuration of User-ID’s, App-ID’s, SSL Decryption, URL Filtering, Policies, Zone Protection, High Availability, and Certification Management.

Worked on the URL filtering and upgradation of Palo Alto firewall from PAN-OS 7.1 to PAN-OS 8.0.

Worked on the implementation of Cisco Meraki wireless solutions and the deployment of wireless access points.

Working knowledge and hands on experience with the PA-200, 500 Series firewalls.

Resolving issues in the Network Operations Center (NOC) through the ticketing system and escalating the issues if necessary.

Worked on the implementation of Cisco Meraki Enterprise Cloud Wireless Bridge/Repeater to extend the LAN for multiple buildings

Installed and configured Meraki (MX80, MX60) Appliance via Meraki MX400 Cloud.

Installed and configured Cisco Meraki (MR66, MR18) wireless Access points in the warehouses from scratch.

Configuring HSRP between the 3845 router pairs of Gateway redundancy for the client desktops.

Upgrading the IOS on the ASA 5550, 5585 and have done IOS upgrades on Cisco routers and switches.

Involved in Configuring and implementing of Composite Network models consists of Cisco 7300, 7600, 7200, 3800 series and ASR 9k, GSR 12K routers and Cisco 2950, 3500, 3550, 3750, 5000, 6500 Series switches.

Mutual redistribution of OSPF and BGP routes using route maps for WAN optimization.

Configuring VLAN, STP, VSTP, SNMP on EX series switches from scratch.

Hands on experience in Design, Installation and configuration of Checkpoint Provider Environment.

Managed the Checkpoint firewalls and provided Level 3 support for the Checkpoint Firewall administration.

Performed upgrades on all Checkpoint firewalls and managed security policies for the firewall from scratch.

Configured New Client connectivity via Site-to-Site/Remote/SSL VPN on Checkpoint firewall.

Hands on experience and demonstrated knowledge with the VMware Workstation and the management of different virtual machines.

Provided remote support for AWS Managed Services clients via all channels(Help desk, phone, email) adhering to SLA guidelines and providing thorough and timely communication.

Deploying and decommission of VLANs on core ASR 9K, Nexus 9K, 7K, 5K and its downstream devices and configuration of 2k, 3k, 7k series Routers.

Moved Core switches and several non-Cisco devices under strict deadlines to maintain network functionality.

Upgrading system images on Nexus 5 and 7 multi-layers switches using kick start and FTP server.

Hands on experience with the configuration of Route 53, NAT, VPC, and subnets through Amazon Web Services (AWS) for the deployment of web applications.

Implemented SmartKey for cloud scalability, secure key / secret generation, storage, life-cycle management, encryption and tokenization for PII.

Hands-on experience in keeping PII, CPNI and PCI applications secure in multicloud environments.

Implemented strong authentication protocol, user access management solutions.

Played a key role in monitoring and analyzing user’s activities for secure environment.

Familiar with setting up the network connections with multiple cloud providers such as AWS, Azure, Oracle etc.

Worked on the configuration of BGP and advertisement of routes to the ISP network.

Experience in creating and monitoring high availability, scalable, networks in AWS using EC2, Lambda, VPC and other AWS services.

Environment: Cisco Router 7613, Cisco Switch 6500, Nexus 2K, 5K, 7K, OSPF, BGP, VLAN, MPLS, 802.1x, Cisco ASA 5550, 5585, Infoblox, SDN, PIX Firewall, F5 Load Balancer 6400, 6800, Nokia 7210 switch, 7750 routers.

Anthem, Richmond, VA. Mar ‘17 – Jan ‘18

Sr. Network Engineer

Responsibilities:

Configured CIDR IP RIP, PPP, BGP and OSPF routing.

Involved in the configuration & troubleshooting of routing protocols: MP-BGP, OSPF, LDP, EIGRP, RIP, BGP v4.

Configured IP access filter policies.

Working knowledge and demonstrated experience on the Check Point Firewall R77 version; 3000, 5000 series security gateways.

Worked on the creation and implementation of virtual machines on VMware ESXi in the Network Operations Center (NOC).

Configured and Implemented Gateways, Groups, user accounts, access control policies, user accounts, threat prevention policies, VPN tunneling, and High Availability on the Check Point Firewall.

Communities, Route-Reflector clusters, Route-maps and route policy implementation.

Deploying and decommission of VLANs on core ASR 9K, Nexus 7K, 5K and its downstream devices.

Performed OSPF, BGP, DHCP Profile, HSRP, IPV6, Bundle Ethernet implementation on ASR 9K redundant pair.

Hands on experience with the SQL database maintenance logs and database mining procedures.

Functional knowledge and hands on experience with the Citrix NetScaler, like creating NetScaler IP addresses, enabling packet forwarding, configuring VMACs and route monitors, configuring basic load balancing, basic content switching, some knowledge of FIPS too.

Managed fast Layer 3 switched/routed LAN/WAN infrastructure as a part of Network team. The LAN consisted of Cisco campus model of Cisco 3550 at access layer, Cisco 6513 at distribution/core layer.

Worked on the configuration and installation of arista 7160 series switches.

Configuring routing protocols OSPF, EIGRP, RIP, MPBGP, LDP and BGPV4.

Worked extensively on Cisco ASA 5500(5510/5540) Series, experience with convert PIX rules over to the Cisco ASA solution

Provided proactive threat defense with ASA that stops attacks before they spread through the network.

Palo Alto 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.

Modified internal infrastructure by adding switches to support server farms and added servers to existing DMZ environments to support new and existing application platforms.

Worked on Physical site Inventory verification, gather information of various Cisco Network devices and Security Devices to develop Run book and Spec Book.

Installation of the Aironet 500, 1850, 2800, 3800 series Access Points and their management through the different Wireless Lan Controllers (WLANs)

Configuration and troubleshooting of Cisco catalyst 6509, 7613 with supervisor cards.

Used Microsoft project server 2013 for task and resource management.

Environment: Cisco 2948/3560/4500/3560/3750/3550/3500/2960/6500 switches and Cisco 3640/12000 7200 / 3845 / 3600 / 2800 routers, Cisco Nexus 7K/5K, Palo Alto, Cisco ASA 500, Checkpoint, SolarWinds, Windows server 2003 / 2008, RIP, OSPF, BGP, EIGRP, LAN, WAN, VPN, HSRP, WAP 561, WAP 571, 1850i, 2800i, 3800e.

Cisco, San Jose CA Nov ‘15 – Feb ‘17

Network Engineer

Responsibilities:

Configured HSRP between VLANs, configuring Ether Channels, Port Channel on 6500 catalyst switches.

Performed data center migration in Access, Distribution and Core layers.

Experience working with ASR 9000 series switches with IOS-XR.

Configured Routing protocols such as RIP, OSPF, EIGRP, MPLS, static routing and policy-based routing.

Configured and troubleshot link state routing protocols like OSPF in single area and multiple areas.

Configured BPDU Guard, port-fast, uplink fast and other spanning tree features.

Worked on the installation of softphones on the client’s end devices through Cisco IP Communicator.

Upgraded Cisco ASA 5510 firewalls using 6500/7600 catalyst modules for enhanced performance, security and reliability.

Provided Technical support for improvement, upgradation, and expansion of the existing network architecture

Done troubleshooting of TCP/IP problems and connectivity issues in multi-protocol Ethernet environment.

IOS upgrade 1900, 2900, 3500 series Cisco Catalyst switches and 2500, 2600, 3600 series Cisco routers using TFTP.

Migrated IPv4 addresses to IPv6 addresses using mechanisms like Tunnel Broker, Transport Relay Translation (TRT), NAT64, DS-Lite and DNS64.

Configuration and installation of IP phones and Session Initiation Protocol (SIP) implementation to enable the communication.

Performed Binding of LUNS onto the RAID Groups in the Clarion Boxes.

Worked on the VMware ESXi, Microsoft Hyper-V by running several operating systems.

Configured ACLs (Standard, Extended and Named) to allow users all over the company to access different applications and blocking others.

Environment: Cisco 3750/3550/3500/2960 Switches and Cisco 3640/12000/7200/3845/3600/2800 routers, Cisco Nexus7K/5K, 2248/3560/5020/6509, Cisco ASA5510, Checkpoint, SolarWinds, Blue Coat Proxy, Controllers 6000, 3600, 3400, 650, Juniper SRX, Microsoft Lync, MPLS, VOIP, SIP, Cisco Unified Video Conferencing, Unix commands, IPV6, Cisco IP phones, Cisco 5500, 6500 series controllers, Avaya3000, 6000, 7200 series Controllers, Cisco IOS CLI.

Syntel, Hyderabad, India Jul ‘12 - Aug ‘15

Network Engineer

Responsibilities:

Configured STP for switching loop prevention and VLANs for data along with configuring port security for users connecting to the switches.

Worked on issues related to static and dynamic routing protocols like RIP, EIGRP (Variance and unequal cost load balancing) and OSPF.

Configured VLANs with IEEE 802.1q tagging, private VLANs, VTP on Cisco 4500 and 6500 series switches.

Configured trunk groups, ether channels, and Spanning tree for creating Access/distribution and core layer switching architecture.

Worked on issues related to VLAN, VTP and HSRP failovers.

Created network diagrams and proper documentation for the network architecture.

Environment: Cisco 6509/3750/3550/3500/2950 switches, Cisco 7200/3845/3600/2800 routers, Checkpoint firewalls (SPLAT), Cisco IOS CLI, Net Flow, TACACS, EIGRP, RIP, OSPF, CSM, Ether Channels.

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