Slice Federation Architecture 2.0

This document is a revision of the original Slice Facility Architecture (SFA) document.

It is roughly backward-compatible in that any implementation of SFA 1.0 is also an implementation of SFA 2.0. The major change is that it attempts to be open to externally specified services for identity, authorization, and naming, rather than defining these within the control framework spec.

As of July 2010, this draft document represents a rough consensus among principals of the GENI control frameworks. However, it leaves many crucial aspects of the GENI control framework unspecified.