ALI IRFAN

Email: ac771m@r.postjobfree.com

Contact No: 205-***-****.

Summary:

Overall 5+ years of professional experience in Network Planning, Implementing, Configuring, Troubleshooting and testing of networking system and Specialist on routing, switching, and firewall technologies

Guaranteeing QoS for company sites, setting up class map/policy map configuration to guarantee voice/video quality

Sound comprehension of Security arrangements including ACL, Firewall, IPSEC, SSL, VPN, IPS/IDS, AAA (RADIUS)

Experience in management and migrating large scale enterprise networks. Extensive knowledge in developing test plans, procedures and testing various LAN/WAN/SAN products and protocols.

Experience in product support, integration and deployment of ALU USDS 1440 HLR production system for CDMA-WiFi hybrid network that includes End-to-end VoIP call testing.

Responsible for monitoring, correlating, troubleshooting and resolving network alarms and performance deviations for Verizon wireless network.

Support ALU SAS-MXP and ALU SAR-8 integration with Macro site in preparation for small cell deployment which involved parameter changes on ALU 7750 (MADMIR).

Creation of SCF for integration of LTE EnodeB to AirScale migration, carrier add, bandwidth expansion, radioadd/delete, TMA/RET scripting and alarms troubleshooting on products.

Troubleshoot Network Connectivity / Network administration – LAN, WAN and WLAN Technologies.

Experience in installation, configuration and administration of Windows Servers 2000/2003, Active Directory, FTP, DNS, DHCP, TFTP, Linux OS under various LAN and WAN environments.

Extensive working Experience in advanced TCP/IP Management, IP Addressing and sub netting VLSM, Route summarization, Route Redistribution and NAT/PAT.

Extensive working and troubleshooting exposure to VOIP phones, Dial peers, Dial plan, DID and other telephony services related to CME.

Extensively worked on Cisco PIX 506/515E while designing and implementing various projects with Cisco PIX firewall and migrated and implemented new solutions with Cisco ASA Firewall series 5500, 5510, 5512-X.

Troubleshooting support for Nokia GSM/UMTS/LTE network

Experience in routing protocols like OSPF, BGP, and standby protocols like HSRP and VRRP application in the routers.

Experience in Network Management Tools and sniffers like SNMP, HP-Open view, Wireshark and Cisco works to support 24 x 7 Network Operation Center.

Hands-on experience in deploying Frame-relay, GRE tunnels, Remote Access VPN and Site-to-Site VPN.

Improved LTE network design by automating customer input, customer network definition, and rules to produce design configurations.

Simplified customer network-details input, accepting proprietary customer templates and converting to LTE Network Design internal format.

Migrated Datacenter environment to new building onto a Cisco ACI platform while maintaining Site availability.

Change management and third level incident management being the primary responsibility, participate directly as well as take escalations from the team members as and when required.

Technical Skills:-

Network Configuration

Advanced switch/router configuration (Cisco IOS access list, Route redistribution/propagation, JUNOS switching).

Networking

IPV4, IPV6, TCP/IP, CIDR,WANs, LANs, Routers and Switches

Load- Balancer

Cisco CSS, ASE Module, F5 Networks Big-IP LTM Network Technologies NAT/PAT, IPSec, GRE, ACL, IPv4, IPv

Routing Protocols

IGRP, EIGRP, OSPF, BGP v4, IS-IS, RIP

WAN Protocols

HDLC, PPP, MLPPP

Packet Switched WAN

FRAME RELAY, MPLS VPNs

Redundancy and management

HSRP, VRRP, GLBP, Solar winds, SNMP

Physical interfaces

Fast Ethernet, Gigabit Ethernet

Layer 2 technology

VLAN, HSRP, VRRP, GLBP, STP, RSTP

Cisco Routers

Cisco 7200vxr, Cisco 3640, Cisco 3600, Cisco 2600, Cisco 2800, Load Balancer, ASA firewall, Cisco 7200, Cisco 7600, Checkpoint, F5 LB.

Certifications:

Cisco Certified Network Associate (CCNA-R&S) – CSCO13112755 Valid Dec 2019

Checkpoint Certified Security Administrator (CCSA)

Work Experience

Client: Verizon Wireless July 2017 to Present

Role: Network Engineer

Location: Dallas, TX

Responsibilities:

Configured Cisco ASA Firewall to use multiple security levels and interfaces

Implementation and configuration of Cisco ASA 5520 in failover along with the CSC module as per the customer requirement.

Experience in migration of Frame-relay based branches to MPLS based technology using multi-layer stackable switch like 6500 series and 2800 series router.

Configured IPsec tunnels with Palo Alto to enable secure transport and cloud based/site-site VPN. Configuration and troubleshooting link state protocols like OSPF in single area and multiple areas.

Documenting and Log analyzing the Cisco ASA 5500 series firewall and working on Palo Alto firewalls.

Port configuration and Swap Support on ALU 7210 and ALU 7705 Routers.

Configuring, implementing and troubleshooting VLAN's, VTP, STP, Trunking, Ether channels

Scheduled maintenance of Nexus 2248, 5548 and 7010 switches so that there are no Orphan ports in the network.

Responsible for complete datacenter layout and migration, configured Cisco ACI after migration of datacenter using nexus 9k, 7k.

Signature Updates Deployment on the Management Components and all the Individual IPS/IDS devices.

Scheduled maintenance of Nexus 2248, Nexus 5548, and Nexus 7010 switches so that there are no Orphan ports in the network.

Environment: Cisco 3640/1200/7200/3845/3600/2800/2600/3500/7613 Routers, cisco UCS Manager, Cisco 3750/3550/3500/2960/4500/6500 Switches, LAN, WAN, EIGRP, OSPF, RIP, BGP, IPAM, Fluke, F5 Load Balancer, citirx, Palo Alto, Radius, LDAP, VTP, DNS, VLAN, HSRP, HTP, IPV4, Nexus 5K, 7K, LTM, GTM.

Client: EarthLink Sept 2016 to Jun 2017

Role: Network Engineer

Location: Rochester, NY

Responsibilities:

Configure IPv6 access lists and assign IPv6 addresses to dual stacked devices as part of an agency-wide migration from IPv4 to IPv6.

Installation and administration of VMware ESX, ESXi Servers using vCenter Server.

Experience in handling various trouble tickets, firewall rule changes, assisting other teams to bring the device to production, making DNS changes in InfoBlox and routing changes.

Experience in Server building both physical & virtual, troubleshooting, capacity planning, application.

Implemented network solutions for EDS customers. Deliverables include a formal written proposal, detailed price quote, and network diagrams of the proposed solutions. Design and coordinate implementation for customer access to a large-scale predominately Cisco-based router network.

Supported and provided troubleshooting and redistributed for EIGRP and OSPF routing on Cisco 7500, 7200, and 3600 equipment.

Configuring objects such as Load Balancer pools for local traffic management on F5 Load Balancers.

Worked on updating the SSL certificates to the application URL using the F5 LTM and F5 GTM.

Support senior wireless network engineer in researching, planning and implementing wireless network security protocols and technologies.

Managing health check of Network devices this is involves upgrading IOS on every quarter after checking the vulnerability of IOS and reviewing the configuration.

Configured Easy VPN server and SSL VPN to facilitate various employees' access internal servers and resources with access restrictions.

Created stub areas and configured summarization for effective routing. Manipulated route updates using distribute lists, route maps & administrative distance, offset lists.

Hands on experience in Configuring VPN, routing, NAT, access-list, security contexts, and failover in ASA firewalls.

Environment: Net Flow, TACACS, EIGRP, RIP, OSPF, BGP, VPN, SUP720, Ether Channels, F5, Cisco 7200/3845/3600/2800 routers, Cisco 6509/ 3750/3550/3500/2950 switches, Network edge routers, Switches, WAP, WLC, OSPF, BGP, VLAN, VTP, RSTP, STP (Spanning Tree Protocol), HSRP, IPSEC VPN tunnels, ACL, NAT/PAT, Firewalls (ASA).

Client: Windstream Communications Mar 2016 to Aug 2016

Role: Network Engineer (Intern)

Location: Little Rock, AR

Responsibilities:

Involved in Configuration of Access lists (ACL) on checkpoint firewall for the proper network routing for the B2B network connectivity.

Upgradation of nexus OS from 6.2.2a to a higher version to increase performance and support new features on both N7010 & N7710 chassis.

Scheduled maintenance of Nexus 2248, 5548 and 7010 switches so that there are no Orphan ports in the network.

Created Visio Dean / Visio Documentation to give complete picture of network design for each building.

Hands on Experience on IPAM tool used for periodical scans a subnet and provides the availability status of IP addresses in that subnet.

Troubleshooting the Network Routing protocols (BGP, EIGRP and RIP) during the Migrations and new client connections.

Worked with Palo Alto firewalls PA250, PA4050, PA3020 using Panorama servers, performing changes to monitor/block/allow the traffic on the firewall. Technical assistance for LAN/WAN management and complex customer issues.

Configured and performed software upgrades on Cisco Wireless LAN Controllers 5508 for Wireless Network Access Control integration with Cisco ISE.

Implement and manage all the firewalls in smart domain manager/Provider-1 with CMA to organize enterprise and remote locations.

Supporting EIGRP, OSPF and BGP based network by resolving level 2 & 3 problems of internal teams & external customers of all locations.

Configured and maintained VPCs with 7010 and 5548 in the network. Also configured and maintained VDCs in 7010 switches, maintained VRFs in those separate VDCs.

Environment: Net Flow, TACACS, EIGRP, RIP,OSPF, BGP,VPN, MPLS, CSM,SUP720, IPAM, Cisco ACI, Cisco 4510,7200/3845/3600/2800 routers, Cisco 6509/ 3750/3550/3500/2950 switches, Radius, SecurID, Solarwinds, citrix, firewalls(SPLAT), F5 Load Balancer.

Client: ACS Technologies Limited Jan 2014- Jun 2015

Role: Network Engineer

Location: Hyderabad, Telangana

Responsibilities

Ordered and tested new Network Device

Provided support to team members in project and in troubleshooting network problems.

Maintaining network performance & upgraded IOS for CISCO routers and switches.

Creating documents for software upgrades and to resolve network issues.

Configuration and installation of cisco router and switches.

Involved in Configuring and installation of Switches.

Involved in troubleshooting skills in all aspects LAN, VLAN.

Troubleshooting Network issues according to the type of Internet connection and Modem.

Good knowledge about how to build a network with great efficiency in service from service provider to customer.

Experience in designing a new network and modifying the existing network as per customer requirement.

Supported documentation, backup for data and configuration process.

Environment: Routers, Switches, VLANS, VTP, Frame Relay, EIGRP, RIPv2, OSPF, BGP, HSRP, VRRP, GLBP, Dot1q, DNS, TCP/IP. MPLS, DHCP, Wi-Fi, IPsec, WAN, CLI, VoIP.

Education Detail:

Masters in Computer Science from Southern Arkansas University

Bachelors in Computer and Information technology from Osmania University, India

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