Service Orchestration and Federation for Verticals IEEE WCNC’18: The First Workshop on Control and management of Vert rtica ical l sli licing ing inc includ luding ing the Edge and Fog System stems s (CO COMPASS) MPASS) Xi Li (NEC) Barcelona, Spain Ca Carlos los J. Bernardo ardos s (UC UC3M) M) 15-04-2018 on behalf of all co-authors
Outline • Overview of 5G-TRANSFORMER • 5G-TRANSFORMER System Architecture • Mapping to 3GPP/ETSI NFV • SO Functionalities and Architecture options • Federation • Conclusions 15 April 2018 2
5G-TRANSFORMER Overview 5G-TRANSFORMER aims to to transform rigid id mobile transport networks in into an an SDN/NFV-based 5G Mobile Transport and and Computing Pla latform (MTP) Technical approach: • Enable Vertical Industries to meet their service requirements within customized MTP slices • Aggregate and Federate transport networking and computing fabric, from the edge up to the core and cloud, to create and manage MTP slices throughout a federated virtualized infrastructure 15 April 2018 3
5G TRANSFORMER Concept ▪ Vert rtical Sli Slicer (5 (5GT-VS) • logical entry point for verticals to support the creation of their transport slices in a short time-scale ▪ Se Service Orc rchestrator (5 (5GT-SO) • federation of transport networking and computing resources from multiple domains and allocation to slices ▪ Mobile Tra ransport and Computing Platform (5GT-MTP) • underlying unified transport stratum for integrated fronthaul and backhaul networks, including compute resources 15 April 2018 4
From Vertical Service to Network Slice to NFV Network Service Instantiation Defining and Managing Vertical Services: Verticals, MVNOs (1) Defining vertical services (VSB->VSD) Vertical Services (VSB) (2) VSD/NSD translator: maps vertical’s requirements to NFV-NS NSD deployment (3) Mapping vertical services VSB->VSD->NSD to network slices, in turn Vertical Slice -> Network Slice 5GT-VS mapped to NFV Network Network Slice -> NFV Network Service Services NFV Network Service NFV Network Service (NSD and flavors) Orchestration/Federation: • Service Orchestration NFV Network Service Instance 5GT-SO (NFVO-NSO) (NFV-NSI ) Resource orchestration • (NFVO-RO) Request resource allocation and instantiation 5GT-MTP • Allocation of resources over the infrastructure Providing abstractions • 15 April 2018 5
Architecture in 3GPP and ETSI NFV • 3GPP TR 28.801 – Architecture • CSMF: Translates the communication service requirements to network slice requirements • NSMF: Manages the NSIs, including their lifecycle and their mapping with the NSSIs that compose them • NSSMF: Manages the NSSIs and their lifecycle • Map to NFV architecture • CSMF, NSMF and NSSMF are part of the OSS/BSS • An additi itiona onal «mapping ing funct ction» on» is required to translate between Network Slices and Network Services and interact with the NFVO 15 April 2018 6
5G-T Architecture Mapping to 3GPP/ETSI NFV • Ve Vertica ical l Sl Slicer er: Vertical’s OSS/BSS • CSMF (extended to deal with requirements of generalized services, Oss-Vs not only communication ones) • NSMF & NSSMF Vs-So 5GT-SO • Mapping function 5GT-VS • Se Service ice Orche hestr strato ator: r: • NFVO (NSO + RO) • VNFM • MTP TP: So-Mtp • VIM/WIM • NFVI (extended to Mobile Edge Hosts) 5GT-MTP 5GT-MTP • May also include its own NFVO 15 April 2018 7
15 April 2018 8
SO Key Functionalities • Service vice Orche chest strati ration • Orchestration of E2E NFV Network services to fulfill the requirements of the vertical services requested through the VS • De-composition of NFV network services to multiple segments, deployed in different technical or administrative domains • Provisioning of E2E NFV networks service • Resource rce Orch chest estrat ration ion - optimum decisions on • VNF(s) Placement • Resource to be allocated • Federat ration ion with other administrative domains through EBI/WBI • Resource federation (NFVIaaS) • Service federation (NSaaS) 15 April 2018 9
Use case 1: NFVIaaS • The NFVIaaS consumer is a service provider that wants to run VNF instances inside an NFVI provided as a service by a different administrative entity: the NFVIaaS provider • The NFVIaaS consumer has the control of the VNF instances and virtual resources • NFVIaaS consumer and NFVIaaS provider belong to different administrative domains • The NFVI of the NFVIaaS provider is structured in several VIMs 15 April 2018 10
Use case 2: Network services over multiple administrative domains • Each administrative domain includes one or more NFVI PoPs, VIMs, VNFMs and an NFVO • Distinct specific sets of Network Services are instantiated on each administrative domain 15 April 2018 11
Hierarchical interaction between NFVOs • ETSI IFA 028 proposes a hierarchical architecture: • The NFVO of the administrative domain offering the composite NS interacts with the NFVOs of the administrative domains offering the constituent nested NSs through a new reference point, called Or-Or, based on IFA013 15 April 2018 12
5G-TRANSFORMER architecture based on hierarchical paradigm 15 April 2018 13
5G-TRANSFORMER architecture based on peer-to-peer paradigm 15 April 2018 14
Federation • Defined on the SO-SO interface for sharing of resources and/or services • Can be formed as • Pre-established federation • Relationship agreement is previously established (offline) as a business agreement • Open federation • Established between entities that advertise their resources publicly • Key difference is level of abstraction applied to resources/services 15 April 2018 15
Conclusions • 5G-TRANSFORMER architecture is based on SDN-NFV • 5GT-VS: • Logical entry point for verticals to support the creation of vertical services • Creation of network slicing tailored to specific needs of vertical industries • 5GT-SO: Service/resource orchestration and federation • 5GT-MTP: Evolved Mobile Transport and Computing Platform plus MEC • 5G-T architecture mapping to 3GPP/ETSI NFV • SO architecture options • NFVIaaS • Network services over multiple administrative domains (hierarchical and P2P) 15 April 2018 16
Thank you! The research leading to these results has received funding from the European Community's H2020 Programme under grant agreement Nº H2020-761536. 15 April 2018 17
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