The book describes the network migration project that was carried out between 2019/2020. The information contained relates to management of such projects and technical aspects, including those related to the selection of a solution for the operation and management of a computer network. The book shows the challenges faced by managers in the case of strategic decisions regarding the technical infrastructure for enterprises administering dispersed IT Infrastructure networks. The examples provided in the book show the status before and after implementation in the form of diagrams and photos along with additional comments and suggestions. The aim of the publication is to share the project experience with readers in order to speed up and simplify future projects.

Tomasz Szymanski - A graduate of universities in Poland: Koszalin University of Technology - Faculty of Electronics, Szczecin University of Technology - Faculty of Information Technology in Management and University of Gdansk - Faculty of Management. For over 20 years, I have been implementing and managing IT solutions, with experience built on the basis of projects in countries such as: Poland, Norway, Great Britain and Germany. I am a supporter of logically simple but effective solutions that support measurably implementation of companies' business strategies.

Table of content: Introduction The business model of the enterprise IT Infrastructure - Management Issues IT Infrastructure - Network Description IT Infrastructure - Pilot Project IT Infrastructure - Architecture Schema IT Infrastructure - Reference Project IT Infrastructure - Production Project Organization of the IT department during implementation IT Infrastructure - Implementation Methodology Why SD-WAN? Architecture before the implementation of the SDWAN solution IT Infrastructure - Old architecture - Example 1 IT Infrastructure - Old architecture - Example 2 Architecture after the implementation of the SDWAN solution IT Infrastructure - Example 1 IT Infrastructure - Example 2 IT Infrastructure - Example 3 IT Infrastructure - Example 4 IT Infrastructure - Example 5 Pre-Implementation Visit IT Infrastructure - Visiting Example 1 IT Infrastructure - Visiting Example 2 IT Infrastructure - Visiting Example 3 and 4 IT Infrastructure - Visiting Example 5 IT Infrastructure - Visiting Example 6 IT Infrastructure - Visiting Example 7 IT Infrastructure - Visiting Example 8 IT Infrastructure - Visiting Example 9 IT Infrastructure - Visiting Example 10 Recommendations for the location of elements in server and telecommunications cabinets Load Balancing and QoS IT Infrastructure - VPN Networks IT Infrastructure VPN Case 1 IT Infrastructure VPN Case 2 IT Infrastructure VPN Case 3 SD-WAN Cisco Meraki Additional Notes to SD-WAN Cisco Meraki Summary of the project Appendix: Third party supplier