Abstract
Network operators have been dealing with the necessity of a dynamic network resources allocation to provide a new generation of customer-tailored applications. In that sense, Telecom providers have to migrate their BSS/OSS systems and network infrastructure to more modern solutions to introduce end-to-end automation and support the new use cases derived from the 5G adoption and transport network slices. In general, there is a joint agreement on making this transition to an architecture defined by programmable interfaces and standard protocols. Hence, this paper uses the iFusion architecture to control and program the network infrastructure. The work presents an experimental validation of the network slicing instantiation in an IP/Optical environment using a set of standard protocols and interfaces. The work provides results of the creation, modification and deletion of the network slices. Furthermore, it demonstrates the usage of standard communication protocols (Netconf and Restconf) in combination with standard YANG data models.
Highlights
Network slicing is positioned as the paradigm for service delivery in telecom operator networks. the slicing concept departs from the idea of allocating network resources to customer services on demand, leverages on the paradigms of Software DefinedNetworking (SDN) and Network Function Virtualization (NFV) [1], those resources being dedicated to them during service lifetime
More than the functional block definition, iFUSION includes the usage of: (1) Standard interfaces based on RESTCONF/YANG [22] for the communication between control components and Network configuration protocol (NETCONF)/YANG [23] to configure the network elements; (2) YANG data models based on latest releases in the standards-development organizations (SDOs): IETF, ONF
Dealing with the necessity of a dynamic network resources allocation to provide a new generation of customer-tailored applications is a primary concern nowadays
Summary
Network slicing is positioned as the paradigm for service delivery in telecom operator networks. the slicing concept departs from the idea of allocating network resources to customer services on demand, leverages on the paradigms of Software Defined. The slicing concept departs from the idea of allocating network resources to customer services on demand, leverages on the paradigms of Software Defined. Networking (SDN) and Network Function Virtualization (NFV) [1], those resources being dedicated to them during service lifetime. Those assigned resources (including compute, storage and transport ones) can be either physical or virtual, tailored to the customer need expressed through the slice request. In order to enable this flexible consumption of network capabilities, it is necessary to develop new forms of network control to make possible a dynamic partitioning and assignment of resources end-to-end. The authors selected one of those choices and made a proofof-concept in Telefonica and CTTC Laboratories, Section 4 includes the results
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