SDN AND NFV NETWORK FUNCTIONS VIRTUALIZATION CONCEPT ARCHITECTURE
Keywords:
Figure 2-1 illustrates the concept of SDN and NFV. general architecture This is shown . architecture software ( almost ) complete in supply is increased , the operator traditional physical from the infrastructure inheritance become the rest of the OSS/BSS and PNF from this except for . All infrastructures performance for physical environment (PNF from this (except ) is NFVI (NFV infrastructure ) .Abstract
NFVI is includes both physical hardware ( computing , storage , networks ) and virtual "hardware": servers , storage systems , network devices Virtualization level ( hypervisors and guest operational systems ) VM virtual machines (Virtual Machines ) to them appointed every how functions doer physicist on servers placement opportunity Which one is it for VM? physicist on the server placed and working important not . From this except for VMs work without stopping one physicist from the server to the other migration possible . NFV architecture traditional carrier network system one part was operations and business support lower system (OSS/ BSS ) also inside to receive However , in the NFV architecture this lower of the system existence temporarily , because operators existing OSS/ BSS immediately ca n't leave and Go to MANO immediately . can't ( this only own business from scratch started and network to build started operators new networks for possible ).
MANO in the NFV system installed all software supply of objects complete appearance ( operational ) condition , use statistics and others ) to be and them to manage need . That's why for , operational information collect point of view OSS/BSS sub -section system for the most suitable the interface The provider is MANO . In the future network change with all OSS/BSS functions will be transferred to MANO need .
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