Page 632 - Cloud computing: From paradigm to operation
P. 632

3                                                       XaaS


             Figure (optional)






































             Pre-conditions      CSC-B needs to accelerate network traffic saturated with business applications.
             (optional)

             Post-conditions     CSC-B used virtual WAN acceleration solution provided by NaaS CSP to satisfy the dynamic
             (optional)          business needs.
             Derived             –  On-demand self-service
             requirements        –  Multi-tenancy
                                 –  Resource pooling
                                 –  Rapid elasticity and scalability
                                 –  Measured service
                                 –  Performance assurance and monitoring
                                 –  Co-existence and compatibility with CSC's legacy network equipment
                                 –  Interoperability support for management and orchestration
                                 –  Security and resilience
                                 –  Performance (refer to clause 7.1)
                                 –  Operation and management (refer to clause 7.2)
                                 NOTE – The first nine requirements belong to general requirements of NaaS which are
                                 provided in [ITU-T Y.3501].


















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