Technical consulant for DC migrations in large multifabric environment for Service provider in financial sector

• preparing DC migrations from legacy to ACI based SDN environment with 5 independant ACI FABRICS (each from 2 to 9 Pods)
• preparing/implementing and troubleshooting large scale  configurations for Server/Firewall/Load balancers migrations, IP Network migrations etc.
• imlementing/upgrading new LEAFs in the existing environment
• preparing and using accompanying tools like ticketing tools/DNS Infoblox or FNT Command
• configuring ACI Fabrics via API's (POSTMAN), CLI

Technical consulant for DC migrations in large multifabric environment for DC Service provider in enterprise/business sector

• large scale ACI based DC Network migrations in environment with 4 Pods and abut 240 LEAFs
• DC upgrades (complete network)
• Server/Service/FW/customers migrations, configuration preparations
• IP L3 migrations to ACI
• Nexus dashboard/Insights installation and implementation
• new equipment onboarding/upgrades
• technical design improvements and consultancy

PBZ Bank (Intesa San Paolo) SDN Cisco  ACI project: Technical lead for DC migration to SDN DC based on Cisco ACI

• Technical solution definition for Cisco ACI DC Multipod deployment
• PoC preparation and acceptance test procedure planning
• Quotation, BoM definition, pricing and technical preparation
• Complete DC migration to ACI infrastructure
• Developing automation procedures ? ansible and python scripts
• regular expansion and configuration of existing datacenter ? configuring Nexus5600, Nexus2200, 2300 FEX platforms, Catalyst6800 core/aggregation layer, vPC concept deployment

A1 Telecom Croatia

• Technical SME for Datacenter and MPLS network
• Defining Fabricpath based DC ? to Cisco ACI georedundant DC network redesign proposal
• Technology workshops and presentations with Cisco
• Quotation and pricing definition for large scale MPLS and DC BoM quotations
• configuring ASR9000 (9001,9006,9010, 9901, 9906, 9903) based platforms for different services, upgrade and maintenance planning etc.

Confidential customer, Arista based VXLAN DC design

• Preparing and supporting PoC and LAB environment activities for Arista EVPN/VXLAN based DC. Configuring preproduction LAB environment, testing services

OTP Bank, Datacenter redesign and extension for VDI

• Implementing, configuring and designing of DC extension for VDI project. Configuration of NX9300 DC extension and integration with existing DC based on Nexus 7K
• quotation, pricing and technical preparation, DC network equipment definition and design documentation preparation (HLD)

Solution architect for service provider technologies - infrastructure development, improvement and project deployment

HT Mostar (Bosnia and Herzegovina) Telecom MPLS network project 

Technical Lead for Core MPLS transport network design and implementation - HT Mostar telecom project

• preparing tender technical documentation, pricing and project documentation (HLD, LLD)
• Planning and deployment of migration activities
• Cisco platforms ? ASR9910, ASR9001, ASR9006, ASR1001, ASR1001-X, 1002-X, Catalyst 6500 and Nexus5000, Nexus 9000 switches
• Configuring MPLS core, edge devices and RR routers, enabling transport network, LAN, WAN environment for adopting new services as L3VPN, L2VPN, EoMPLS, xconnect, OSPF, BGP, ACL?s, QoS, HSRP, MPLS TE services
• Service migration and troubleshooting
• technology swap and redesign in METROETHERNET ACCESS network part from Cisco ME3400/ME3800 to ASR901/ASR903/ASR920 METROETHERNET platforms

CROATIAN TELECOM (part of DT group) projects

Technical lead for all MPLS network related activities 

• tender and technical documentation for Mobile telecom MPLS network swap to Cisco ASR9000 platform
• presenting technical possibilities and future roadmaps to technical leads and decision makers
• configuring and troubleshooting MPLS network environment
• technical support for networking design and implementation of new CGNAT F5 platform on Gi environment and Nexus9K. Configuring F5 BGP environment in TMOS

Everyday hands-on and configuration of SP network consisted of about 250 MPLS routers and numerous service network endpoint routers and switches.

• Design and planning of telco grade transport and datacenter network infrastructure based on IP/MPLS transport technology. Design solutions for IP/MPLS Core network development and extension. Triple play MPLS POP design and deployment.
• End-to-End design for R4 3GPP and LTE NGN mobile services (both PS and CS core) like SIGTRAN, Voice services related to MSCS, MGW, STP, GGSN, SGSN, MME, SGW/PGW, RNC's, BSC's and all of their interfaces - IuB, IuCS, SIGTRAN, A, Abis, IuPS, Gb etc.
• Designing access network technologies solutions for mobile base stations based on 2G/3G and 4G.
• Platforms ? based on IOS/IOS XR, NXOS, IOS XE = ASR9010, 9006, 9001 series, Cisco7600 series, Cisco 7200 Series, Catalyst6500, Catalyst4500, ASR 1000, GSR 12000 ISR 3900, small CPE series like ISR 2900, ISR 1900, 800 Nexus 9k, Nexus 5k
• Designing datacenter and internal enterprise network based on Catalyst 6509E, Catalyst4500 series devices. DMZ zones planning, doing addressing schemes etc.
• Excellent knowledge and hands-on with MPLS, BGP, OSPF, RIP, EIGRP, L3VPN , inter-AS solutions, L2VPN, VPLS technologies, HSRP/VRRP , switching technologies, highavailability access and transport design, MPLS transport fast convergence mechanisms, QoS etc.
• Cooperation with other teams ? implementing Fault and Performance monitoring procedures for overall MPLS/IP network
• experience and hands-on with Cisco ASA/PIX firewalls
• experience and knowledge related to SDH/DWDM equipment