Network Management

Zeljko Grbavac

Home: 416-***-**** • Cell: 416-***-**** • Email: ******.*******@*****.***

PROFESSIONAL SUMMARY

A dynamic and self-motivated network professional with a proven skillset in network planning, design, acceptance, integration, convergence of traditional IP/MPLS/Ethernet based networks and deployment of the New Generation Network, including associated layers, gateways, Data Centers, OSS platforms and management tools

Looking for a position where I can employ my technical experience and strong analytical skills, to contribute to the sussecsul implementation of corporate and team goals SKILLS

Global experience working for operators: Zayo, Sprint, Alcatel, GTE, AT&T Canada, Allstream, Siemens AG

Work in environments with multi-vendor, multi-layers, multi-ptotocol IP/MPLS Edge and Core platforms

Sound knowledge of IP, MPLS, VPN, Swithed Ethernet, BRAS, VoIP, IP Trunking, PPoE networks

Solid knowledge of Cisco ASR/CRS/ISR, Juniper M/MX, Alcatel-Lucent 7x50, Ciena platforms

Transmission systems and legacy DWDM, ATM, SONET, M/W, xDSL, EoC, FR networks

SME and powerful user IP tools such: Arbor SP, InfoVista, Juniper IP/MPLSView, Alcatel 5620SAM, HPNA Opsware, Cisco IP Solution, Concord, MRTG, Cacti Watermap, NetCool and Metasolv, NIMS databeses

SME for InfoVista tool with goal to automate dashboard/reporting for more proactive capacity function

Influences other adopting new platforms and adapting new service

Protect investment, using Juniper IP/MPLS View tool-set for simulation & modeling of IP/MPLS networks

PROFESSIONAL EXPERIENCE

Network IP Planner 2009 – October 2016

Zayo Group – IP Services (Formerly Allstream Inc.) Toronto, ON

Capacity Planning and Managing carrier-class IP/MPLS Provider Core and Provider Edge layers including various L2/L3 NNI and Global gateways

Using Salesforce and/or issuing realistic network charters protectively augmenting Cisco/Juniper/Alcatel platforms: CRS1, ASR9K, 7600, 7500, MX480/MX960, M120, 7450/7550/7210

Capacity Planner for 2nd largest North America’s and 5th globally Zayo Internet Peering [AS6461] Network

Working on Zayo [AS6461] and Allstream [AS15290] IP network interconnects and integration

Design and turnup of IP services, sizing up to 100G, for customers such: Google, TATA, AT&T, Level 3, Zayo

Deployment of the New Generation Network comprised from Cisco ASR9010/9000v platforms and migrating Allstream traditional IP, MPLS, Ethernet L2/L3 networks/services onto new NGN platform

Assessing customer demands, approving capacity and compliance, augmenting Allstream Nationwide footprint to accommodate complex multi-year Government of Canada projects such: SSC, GCNet, MoJ, CNS4 while deploying IP/BusIP services for several hundreds sites and offices spread across Canada

Senior IP Specialist 1999 – 2009

Network Planning and Capacity Management Toronto, ON Allstream Inc. (formerly AT&T Canada)

Planning IP network to ensure efficient growth on access, distribution, core, and gateway layers

Prime planner for IP Next Generation MPLS based common core and IP networks convergence project Telommunication, Integration, Backbone, Carrier Class, Convergence, New Generation Network, IP, MPLS, Ethernet, WAN, MAN, VoIP, SIP Trunking, BRAS, VPLS/VLL, OSS, P/PE, Managed Services, Salesforce, TCP/IP, IS-IS, BGP, IOS-XR, DWDM, Data, ATM, Frame, Radio, Radar, Microwave, Juniper, Cisco, Alcatel, Nortel, Ciena, Routing, Simularion, Mudeling, ARBOR, HPNA, IPS/IDS, Internet Peering, Netflix, Google Cache, WANDL IP/MPLS, Nrtwork Design, Engineering, QoS, CoS, ToS, RSVP, LDP, TE, Switches, Routers, Tools, Telephony, SCADA, SONET, SDH, Capacity, Planning, Architecure, IoT, M2M, multi-vendor, ISP, InfoVista, Juniper IP/MPLSView, Alcatel 5620SAM, HPNA Opsware, Cisco IP Solution, Arbor SP, MRTG, Cacti, HP Openview, CA eHealth, Cisco Prime v4, IPv6, COAX, Satelitte, SCADA

Planner for Allstream dual & diverse Data Centers infrastructure including DMZ network comprised from firewalls, network intrusion prevention systems (IPSs), switches, routers, and server load balancers

Implementation for marketing driven new product introduction (BRAS, VoIP, IPT, MAN/WAN Ethernet)

Senior Data Specialist

Team Lead – Network and Capacity Planning

Lead and design a threshold alerting scheme to capacity manage a large number of network elements

Internet Capacity management of the access, distribution, core, and gateway network layers comprised from Cisco (7200, 7500, 7600, ESR 1000, GSR 12000) and Juniper M/MX series routers

Alcatel 7750 MAN/WAN Switched Ethernet network deployment and platform adoption

Network Activation & Acceptance of new Cisco Routers, Alcatel ATM Switches, Alcatel DSLAM devices Network Reliability and QA Inspector 1998 – 1999

GTE Internetworking Dallas, TX

Development of a major OC192 backbone networks throughout the United States

Inspection of network contracted to the major equipment vendors such as Nortel, Alcatel and Tellabs

Insure and verify that the physical state of the equipment meets Network Quality Standards and performing without impacting revenue-bearing traffic

Verifying the vendor in compliance with the policies and standards developed by Company

Resident Engineer 1996 – 1998

Alcatel – U.S.A. Chicago, IL

Project: SPRINT – U.S. Metropolitan Area Networks.

Testing and Commissioning Alcatel 1648 SONET Long Haul Fiber Optic Transmission Systems

Operational acceptance, verification of provisioning functions transmission Control Center

Integration and interconnection to DWDM fiber transmission systems: CIENA, NORTEL and PIRELLI

Alcatel representative and Field support for Sprint implemented Metropolitan rings TECHNICAL TRAINING

Certificate: Cisco ASR Series Carrier Routing System 2014 Certificate: WANDL IP/MPLSView Simulation and Modeling Tool 2013 Certificate: Advanced Juniper Network Routing course 2012 Certificate: InfoVista Solution Development course 2011 Certificate: Cisco CRS-1 Series Carrier Routing System 2007 Certificate: Alcatel 7750 SR – Switched GE Network 2006 Certificate: Cisco 6400 – Broadband Residential Aggregation Server 2003 Certificate: Marconi ATM Switches (ASX-4000, ASX1000, TNX1100, ASX200) 2001

EDUCATION

University of Sarajevo, Bosnia and Herzegovina

Telecommunication Engineering Diploma

ADDITIONAL INTERESTS AND QUALIFICATIONS

International Experience: Canada, U.S.A., Germany, Yugoslavia, Egypt, Nigeria and Malaysia

Personal Interests: Tennis, Travelling, Outdoors

Security Clearance: Obtained Enhanced Reliaibility clearance while working on various Government projects

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