In a distributed cloud topology, VNFs are stitched across different cloud islands to deliver services. Each site can also have multiple instances of the NFV environment for redundancy and scale.

Each site is a standalone island with its own instance of the Management, Resource, and Edge Pods. Multi-site designs are typically used for load distribution and for high availability in case of catastrophic site failures.

Figure 1. Distributed Clouds
Distrubuted Clouds