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In large scale deployments, DCAE components are generally distributed in multiple sites that are organized in hierarchical fashionhierarchically. For example, to provide DCAE function for a large scale eCOMP OpenECOMP system covering that covers multiple sites spanning across a large geographical area, there will be edge DCAE sites, central DCAE sites, etc. Edge and so on. Edge sites are physically close to the NFs network functions under collection, for reasons such as processing latency, data transport, and security, but often have limited computing and communications resources. On the other hand, central sites generally have more processing capacity and better connectivity to the rest of the eCOMP OpenECOMP system. This hierarchical organization offers better flexibility, performance, resilience, and security.
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- The DCAE Controller is instantiated from an OpenECOMP Heat template.
- The The DCAE Controller instantiates the rest of the DCAE components, including both infrastructure and service/application components.
- The DCAE Controller configures service/application components with static configurations, configuration policies fetched at run-time (for example data processing configurations or alert configurations), and any DMaap topics required for communication.
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