Added chapter 4 (VIM setup)

Open Source MANO (OSM) is an ETSI-hosted open source community delivering a production-quality MANO stack for NFV, capable of consuming openly published information models, available to everyone, suitable for all VNFs, operationally significant and VIM-independent. OSM is aligned to NFV ISG information models while providing first-hand feedback based on its implementation experience.

Open Source MANO (OSM) is an ETSI-hosted open source community delivering a production-quality MANO stack for NFV, capable of consuming openly published information models, available to everyone, suitable for all VNFs, operationally significant and VIM-independent. OSM is aligned to NFV ISG information models while providing first-hand feedback based on its implementation experience.

Release SIX brings a number of improvements over previous releases. For the full list of new features, please refer to the Rel SIX White Paper or the [OSM Release SIX Documentation](index.md). For a comprehensive overview of OSM functionalities, you can also refer to the [OSM Scope and Functionality White Paper](https://osm.etsi.org/images/OSM_EUAG_White_Paper_OSM_Scope_and_Functionality.pdf) or to the release notes of previous OSM releases ([ONE](https://osm.etsi.org/images/OSM-Whitepaper-TechContent-ReleaseONE-FINAL.pdf), [TWO](https://osm.etsi.org/images/OSM-Whitepaper-TechContent-ReleaseTWO-FINAL.pdf), [THREE](https://osm.etsi.org/images/OSM-Whitepaper-TechContent-ReleaseTHREE-FINAL.pdf), [FOUR](https://osm.etsi.org/images/OSM-Whitepaper-TechContent-ReleaseFOUR-FINAL.pdf), [FIVE](https://osm.etsi.org/images/OSM-Whitepaper-TechContent-ReleaseFIVE-FINAL.pdf)).

Release SIX brings a number of improvements over previous releases. For the full list of new features, please refer to the [Release SIX Documentation](index.md). For a comprehensive overview of OSM functionalities, you can also refer to the [OSM Scope and Functionality White Paper](https://osm.etsi.org/images/OSM_EUAG_White_Paper_OSM_Scope_and_Functionality.pdf) or to the release notes of previous OSM releases ([ONE](https://osm.etsi.org/images/OSM-Whitepaper-TechContent-ReleaseONE-FINAL.pdf), [TWO](https://osm.etsi.org/images/OSM-Whitepaper-TechContent-ReleaseTWO-FINAL.pdf), [THREE](https://osm.etsi.org/images/OSM-Whitepaper-TechContent-ReleaseTHREE-FINAL.pdf), [FOUR](https://osm.etsi.org/images/OSM-Whitepaper-TechContent-ReleaseFOUR-FINAL.pdf), [FIVE](https://osm.etsi.org/images/OSM-Whitepaper-TechContent-ReleaseFIVE-FINAL.pdf)).

**OSM in Practice**

**OSM in Practice**

- MINIMUM: 2 CPUs, 4 GB RAM, 20GB disk and a single interface with Internet access

- MINIMUM: 2 CPUs, 4 GB RAM, 20GB disk and a single interface with Internet access

- RECOMMENDED: 2 CPUs, 8 GB RAM, 40GB disk and a single interface with Internet access

- RECOMMENDED: 2 CPUs, 8 GB RAM, 40GB disk and a single interface with Internet access

- Base image:

- Base image:

  - Ubuntu18.04 (64-bit variant required) (http://releases.ubuntu.com/18.04/), or

  - [Ubuntu18.04 (64-bit variant required)](http://releases.ubuntu.com/18.04/), or

  - Ubuntu16.04 (64-bit variant required) (http://releases.ubuntu.com/16.04/)

  - [Ubuntu16.04 (64-bit variant required)](http://releases.ubuntu.com/16.04/)

Once you have prepared the host with the previous requirements, all you need to do is:

Once you have prepared the host with the previous requirements, all you need to do is:

Hence, it is assumed that:

Hence, it is assumed that:

- Each VIM has an API endpoint reachable from OSM

- Each VIM has an API endpoint reachable from OSM.

- Each VIM has a so called management network which provides IP address to VNFs

- Each VIM has a so-called management network, which provides IP addresses to VNFs.

- That management network is reachable from OSM

- That management network is reachable from OSM.

## Installation options

## Installation options