Alexander Elwin

Alexander Elwin Email and Phone Number

Sr. Network Engineer at Navigant Consulting, Inc @
Alexander Elwin's Location
San Francisco, California, United States, United States
Alexander Elwin's Contact Details

Alexander Elwin work email

Alexander Elwin personal email

n/a
About Alexander Elwin

I am a Sr. Network Engineer with experience in architecture, designing, configuring and managing Cisco based enterprise level Infrastructure. I have expert Level skills at deploying Cisco network and security solutions; I am looking to expand my skills while providing an excellent service.

Alexander Elwin's Current Company Details
Navigant Consulting, Inc

Navigant Consulting, Inc

Sr. Network Engineer at Navigant Consulting, Inc
Alexander Elwin Work Experience Details
  • Navigant Consulting, Inc
    Sr. Network Engineer
    Navigant Consulting, Inc Feb 2015 - Present
    Irvine, Ca
    •Migrated over 100 pairs of cisco 6509s to cisco Nexus 7010s with sup2es and m128s and F2 series line cards •Implemented vPC on the Nexus 5500 series platform with 2248tp and 2232PP Fabric extenders for 1/10gig connectivity to data center servers•Design/Configuration/Implementation/Migration core network infrastructure from legacy 6513s to Nexus 7010s•Worked on next generation WAN QoS architecture for a unified network with data, voice and video•Implement, and support Cisco VoIP solutions from an infrastructure standpoint such as 2900/3900 series ISR configurations, QoS (class maps and policy maps), DSP Resources and Dial Peers•Designed and deployed a standardized QoS model utilizing LLQ for network assurance in video, voice and data•Configured Cisco switches 6500, 4500, 3750 to support voice and data with custom QoS policy•Configured Cisco ASR9K, GSR12K, CRS-1, 6500, 7200VXR, Cisco 4500, 6509, 7613 series switch and Nexus 7K, 5K, 2K (FEX)•Lead role in edge standardization project in configuration of ASR 1 and 9k routers•Direct experience with Cisco Routers 7600, 7200, and ISR G1/2 Series, Cisco Catalyst 6500/4500/3750/3650 and Nexus 5000/7000 Series.•Deployed MPLS on core network between three major data centers using the Cisco ASR platform, utilizing MPLS VPNs for extension of private, isolated networks dynamically across the common core backbone routed network•Implemented SUP1 to SUP2 upgrades on the Cisco Nexus 7k series switches•Cisco ASA code upgrade from 8.2 to 9.1; update of ACL and NAT policies for code migration on over 100,000+ rules•Migration from Juniper NS5200s to Cisco ASA 5585-X’s in multi context for Edge/Core/DMZ firewalls•Proposed detailed QoS configurations on the 3750 and ISRs for successful classification and marking solution•Implemented Cisco 2900 and 3500 Long Reach Ethernet (LRE) switches as an alternative LAN connectivity method to fiber installation
  • Oliver Wyman
    Sr. Network Engineer
    Oliver Wyman Mar 2013 - Feb 2015
    Greater New York City Area
    •Implemented VPC on the Nexus 5500 series platform with 2248TP and 2232PP Fabric extenders providing 1/10Gbps connectivity to data center endpoints•Led the design and testing phases in a proof of concept for a Catalyst infrastructure upgrade to Nexus 7K lineup.•Designed and implemented enterprise CBWFQ QoS model to provide for adequate voice quality•Worked on next generation WAN QoS architecture for a unified network with data, voice and video. This solution leveraged Hierarchical QoS, Dual Priority Queues and NBAR•Migration from Cisco Catalyst 6500/4500/3750 to Cisco Nexus 7K/5K/2K DC infrastructure•Participated in the Nexus 1000v beta program and am leading the deployment of the 1000v in the datacenters.•Designed and implemented a core refresh from a pair of Cisco 4506s to a pair of Cisco Nexus 5548s•Configured and implemented of VRFs on Cisco ISR G2 series routers for multi-tenant infrastructure•Migrated over 100,000 firewall rules to the ASA platform from legacy Checkpoint and Netscreen firewalls.•Implemented multi-context ASA 5550’s in DMZ environment to separate functional traffic flows through the DMZ•Generating RCA (Root Cause Analysis) for critical issues of layer1/layer2/layer3 problems. •Configured and designed MPLS WAN Connectivity for several campus edge environments utilizing BGP with in the private MPLS Cloud
  • The Boston Consulting Group, Inc
    Network Engineer
    The Boston Consulting Group, Inc Mar 2011 - Mar 2013
    Boulder, Co
    •Migrated from Cisco 6500 to Nexus at three campus locations for core refresh project. Scope of project included configuring and implementing VDCs for internal traffic as well as Internet uplink, as well as utilizing nexus 2k/5k deployment for local server aggregation•Design/Configuration/Implementation/Migration from legacy Catalyst 6500 series Core switches on CatOS 8.X to Nexus 7K/5K/2K architecture•Streamlined QoS for Voice bearer and control traffic to minimize jitter and latency for voice calls•Configured Netflow, Flex Netflow, NetQoS and Ixia Chariot for reporting and traffic management•Performed IOS/NX-OS code upgrades on 4510R+E, C3945, 6509, Nexus 4000 (IBM Blade Center)•Direct experience with Cisco Routers 7600, 7500, 7200, 4500, 3600, 2800 and 2600 Series, Cisco Catalyst 6500/5500/3500 and Nexus 5000/7000 Series.•Configuration and implementation of VRFs on Cisco ISR G2 series routers for multi-tenant infrastructure•Experience working in Nexus environments (7k, 6k, 5k, 2k) and provide Level 3 network support•Configured and implemented of VRFs, route-targets, and route distinguishers on Cisco ASR 1000 series routers•Configured ASA Policies, Any connect, SSL VPN and DMVPN configurations to support remote users/offices•Configured and implemented Cisco PIX firewalls for Internet facing DMZ’s and 3rd party connection access control•Responsible for configuring and supporting Cisco’s 1800, 2800 and 3800 series integrated services routers, thereby providing secure data, voice and wireless networking to branch locations•Design and execute strategy for migration from EIGRP to OSPF as inter-site IGP for support with various third party vendors
  • Mercer Llc
    Network Engineer
    Mercer Llc Dec 2009 - Mar 2011
    Indianapolis, Indiana Area
    •Migrated from Cisco 6500 to Nexus at three campus locations for core refresh project. Scope of project included configuring and implementing VDCs for internal traffic as well as utilizing Nexus 2k/5k deployment for local server aggregation•Implemented various connectivity solutions to servers, ADCs and firewalls utilizing VPC on the Cisco Nexus 7000 and 5500 series switches•Designed and configured Cisco Nexus 5000 and 2000 series FEX Designs in numerous Data Centers located throughout the continental US•Designed and Implemented solution to use 40+ pairs of Cisco Nexus 2232 and 2248 FEX switches as a TOR Solution for server port density•Configuration and implementation of VRFs, route-targets, and route distinguishers on Cisco ASR 1000 series routers•Integrated Cisco ACS 5.3 with Microsoft Active Directory for authentication against AD users and groups•Optimized ACS 5.X server by reducing overall policy size through consolidation and removing unnecessary policies•Configuration and deployment of OSPF areas throughout the network (Backbone, NSSA, TSA, Stub)•Lead technology and hardware refresh project consisting of over 20 locations utilizing Cisco Catalyst 3750s, 4500s and 3900 series integrated services routers
  • Pwc Llp
    Network Engineer
    Pwc Llp Feb 2008 - Dec 2009
    Cleveland/Akron, Ohio Area
    •Work with the development organizations to test and recommend effective solutions for the network. •Worked on ‘Packetshaper’ hardware to perform traffic shaping, bandwidth allocation on the WAN link thus ensuring Quality of Service (QoS) on different traffic classes (voice, citrix and Best-effort)•Implemented an end-to-end 4-Class QoS solution to support converged access to Voice and Video•Implemented multi-homed BGP network leveraging weight, local pref and AS_path prepending in an effort to optimize routing and ensure redundancy•Implemented and managed QoS providing packet priority by defining traffic through class and policy maps•Researched Application viability and functionality for Implementation within the Drug Enforcement Administration worldwide infrastructure•Standup IPSEC/GRE tunnels and VRF aware Edge/Core routing on ASR 1000s and Catalyst 6509-Es in for “no-change” multi-tenant addressing•Utilized BFD in conjunction with a Data Center ECMP BGP deployment on Nexus 9000 hardware for sub-second BGP convergence across the fabric•Configuring, upgrading and verifying the NX-OS operation system•Designed and implemented DMZ for Web servers, Mail servers & FTP Servers using Cisco ASA5500 Firewalls•Modified infrastructure by adding servers to existing DMZ environments to support new and existing application platforms•Configured iRule for various applications, such as parsing URLs to different pools based on their paths•Matched CoS values with DSCP values in a QoS topology utilizing both L2 and L3 markings

Frequently Asked Questions about Alexander Elwin

What company does Alexander Elwin work for?

Alexander Elwin works for Navigant Consulting, Inc

What is Alexander Elwin's role at the current company?

Alexander Elwin's current role is Sr. Network Engineer at Navigant Consulting, Inc.

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Alexander Elwin's email address is ae****@****use.com

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