Page 805 - Cloud computing: From paradigm to operation

Intercloud and interoperability 5

4 Abbreviations and acronyms

This Recommendation uses the following abbreviations and acronyms:
AAA Authentication, Authorization and Accounting
BSS Business Support System
CSC Cloud Service Customer
CSN Cloud Service Partner
CSP Cloud Service Provider
DDoS Distributed Denial of Service
KPI Key Performance Indicator
MSA Master Service Agreement
NaaS Network as a Service
NAT Network Address Translation
NFV Network Functions Virtualization
OSS Operations Support System
PaaS Platform as a Service
PII Personally Identifiable Information

QoS Quality of Service
SaaS Software as a Service
SDN Software-Defined Networking
SLA Service Level Agreement
SMI Service Management Interface
vFW Virtual Firewall
vHGW Virtual Home Gateway
vLB Virtual Load Balancer
vNAT Virtual Network Address Translation

5 Conventions
In this Recommendation:

The keywords "is required to" indicate a requirement which must be strictly followed and from which no
deviation is permitted if conformance to this Recommendation is to be claimed.
The keywords "is recommended" indicate a requirement which is recommended but which is not absolutely
required. Thus this requirement need not be present to claim conformance.

6 Overview of trusted inter-cloud
The inter-cloud computing concept is based on the relationship (pattern) among multiple cloud service
providers (CSPs). This pattern (peering, federation or intermediary) allows the CSP to interwork with one or
more peer CSPs to assure intermediation and security of services provided by these CSPs.

The trusted inter-cloud relationship among multiple CSPs relies on confidence between cloud service
customer (CSC) and CSP, or between CSPs. One of them has to delegate physical control over application,
service, resource and data to the others. The appropriate security mechanisms (e.g., security access control,
security of network connectivity between the CSPs) are needed during peer CSPs interactions to achieve
trusted inter-cloud computing.

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