Page 286 - Cloud computing: From paradigm to operation

1 Framework and requirements for cloud computing

Summary

Recommendation ITU-T Y.3511 describes the framework for interactions of multiple cloud service providers
(CSPs), which is referred to as inter-cloud computing. Based on several use case, and after considering the
different types of service offerings, this Recommendation describes the possible relationships (peering,
federation or intermediary) among multiple CSPs. By introducing the concept of primary CSP and secondary
CSP, the Recommendation further describes CSP interactions for the cases of federation and intermediary
patterns. Finally, relevant functional requirements are derived.

Keywords
Cloud computing, infrastructure, inter-cloud computing, network, primary CSP, requirement, secondary CSP,
use case.

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