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DG ENG AERO/SIS TEL

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ENG TELEC 2NCICLE 01

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Projecte llegit

Títol: Modelling and managing Service-Level Agreements in the context of 5G neutral hosting platforms

Estudiants que han llegit aquest projecte:

Director: RINCÓN RIVERA, David

Departament: ENTEL

Títol: Modelling and managing Service-Level Agreements in the context of 5G neutral hosting platforms

Data inici oferta: 06-01-2019     Data finalització oferta: 06-09-2019


Estudis d'assignació del projecte:
    DG ENG AERO/SIS TEL
    DG ENG AERO/TELEMÀT
    DG ENG SISTE/TELEMÀT
    GR ENG SIS TELECOMUN
    GR ENG TELEMÀTICA
    MU MASTEAM 2015
Tipus: Individual
 
Lloc de realització: Fora UPC    
 
        Supervisor extern: Apostolos Papageorgiou
        Institució/Empresa: Fundació i2Cat
        Titulació del Director: PhD in Electrical Engineering
 
Paraules clau:
NFV, Network Slicing, 5G, SLA, Monitoring
 
Descripció del contingut i pla d'activitats:
The intern will become a member of the Software Network group at i2CAT. SN currently takes part in various H2020 projects developing 5G technologies, and the work of the intern would be related to these projects. These projects are 5G-CITY (https://www.5gcity.eu/), 5G-ESSENCE (http://www.5g-essence-h2020.eu/), and SaT5G (http://sat5g-project.eu/).

The project will focus on the modelling of Service-Level Agreements (SLA) for 5G neutral host platforms and the design and implementation of lifecycles for the management, monitoring, and satisfaction of these SLAs.

The work of the thesis will be structured in the following phases:

1) Get familiar with the 5G slicing-aware NFV platform that i2cat is developing and using in the context of one of its projects (most probably the 5GCity project)

2) Study and analyze the state of the art in SLA modelling and SLA-related system operations in virtualized (cloud/edge based) environments.

3) Identify peculiarities of SLA modelling in the context of the examined platform and business case (5G neutral hosting) and propose ideas for capturing them by extending a selected (or a simplified) SLA model.

4) Design and implement an SLA-based “monitor-analyze-react” lifecycle for the used platform (either a generic one or for selected SLA parameters) by using rule-based, optimization-based, or similar algorithms for the internal logic of the lifecycle steps.

5) Identify and evaluate KPI (Key Performance Indicator) enhancements that were contributed by the implemented lifecycle.
 
Overview (resum en anglès):

This document contains the study and development of Service-Level Agreement (SLA)
management mechanisms in the context of a 5G neutral host platform. The infrastructure
involved in a neutral host platform is evaluated by an SLA Manager that handles the
database of agreements for all the users, and verifies if the monitored data complies with
the thresholds stated in the Service-Level Objectives (SLO) agreed in the SLAs.
Neutral host is a platform that has different levels of virtualization over a 5G infrastructure.
It starts from a sliced network infrastructure for logic separation between tenants, which
in the next level of virtualization, can host 5G services with Network Functions Virtualization
(NFV) techniques. This virtual platform runs on top of a physical infrastructure that
not only covers data centres like in cloud platforms, but also includes access networks,
edge computing and distributed cloud elements. Evaluating through all this infrastructure
adds new levels of complexity for monitoring and obtaining an accurate value for any Key
Performance Indicator, or high-level parameters for Quality of Service.
This challenge is faced with a software module, called SLA Manager, which identifies the
different involved infrastructure elements and creates monitoring jobs according to highlevel
requirements described in each SLO to obtain low-level infrastructure data. This data
is then computed to obtain a high-level value to compare latter with an SLO threshold and
verify if there is a violation. Availability is the main KPI on which this study focuses.
A generic SLA template body is presented for being stored in a NoSQL database solution,
able to adapt to any new service deployed over new technologies that may be deployed by
the neutral host, and to add flexibility and scalability to the solution.
Results show that the accuracy and reliability of the high-level objectives stated in the
SLOs obey the standards required for 5G applications. The system quickly detects any
outage and gives feedback to the platform to recover and avoid any violation. Delay times
for detection are observed in order to provide exact measurements for availability levels.
The report ends with conclusions and future development lines, as well as ethical and
sustainability considerations the study involves.


Data de generació 04/03/2021