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# Introduction
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## Motivation
## Overarching Project Goals
* Keep It Simple, Stupid (KISS)
* Reuse existing technologies bits wherever possible
* Integrate state-of-the-art technologies and methodologies
* Document, Document, Document
* Automate almost everything right from the beginning
* be an excellent citizen: test, test, test
Some unsorted thoughts the be ordered yet:
* Storage of information in some external database, make use of database features, e.g., for state replication
* eye towards web-technologies/features, such as externalisation of state
* one API to "talk" administratively to the network controller
* core of controller should be kept simple/lean, i.e., just the basic primitives
* core should be extended by modules to add functionality beyond basics
* modules should be loaded (or unloaded) during runtime of the controller core
* reuse existing software if possible and if those are stable, i.e., documented, maintained etc, on a long time
## Use Cases to be considered
The development of a general purpose SDN controller is not the primary goal at this early stage of the project.
Instead there are two use cases to be considered in the implemenation works that are currently ongoing:
* Primary: optical domain SDN-controller for the CoCSN project
* Secondary: SDN-controller for our local labs to manage an Ethernet-based lab environment