Monitoring and Measurement System

in EuQoS projectdr Andrzej Beben (abeben@tele.pw.edu.pl)

Telecommunication Network Technology GroupWarsaw University of Technology, Poland

Slide 2© EuQoS consortium 20 April 2023

Outline

Introduction

Monitoring and Measurement System in EuQoSMMS tools for trialsMMS supporting EuQoS system functions

Conclusions

Slide 3© EuQoS consortium 20 April 2023

Introduction (1)

EuQoS Project: “End-to-End Quality of Service Over Heterogeneous Networks”

EU FP 6 IST Integrated project with over 25 organisations www. euqos.eu

Objective: to develop solution for providing strict end-to-end QoS in multi-domain, heterogeneous network (build over WiFi, xDSL, UMTS, LAN, IP core)

Approach: to define an architecture, following DiffServ and NGN, that allows to control the network and enforce QoS required for traffic flows generated by users

Main components:

•signalling system allows users to setup/release QoS connections on demand

•end-to-end Classes of Service (CoS) that provide adequate QoS for different types of traffic, e.g. Telephony, RT Interactive, Multimedia Streaming, High Throughput Data, Low Latency Data, Standard

•Monitoring and Measurement System (MMS) that support EuQoS system functions: CAC, TERO, OAM

USER 1

QCM

ApplicationSignalling

Application

Transport ProtocolsAccess

Network2

QoS Domain

k

QoS Domain

j

QoS Domain

i

USER 1

QCM

ApplicationSignalling

AccessNetwork

1

RA1

Network Technology Independent layer

Network Technology Dependent layer

Application QoSbased e2e signaling

RM1 RMi RMj

Control Plane

Application

EQEQ--pathpath

NSIS NSISNSIS NSIS

ASSN ASSNService Plane

AQ-SSN AQ-SSN

RA1 RA1 RA1 RA1

RMk RM2

Transport Protocols

EQ-SIPEQ-SIP

CO

PS

Legacy application signalling

Transport Plane

Slide 4© EuQoS consortium 20 April 2023

Monitoring and Measurement System in EuQoS (1)

performing trials of EuQoS system in testbed: to prove that EuQoS Classes of Service provide adequate QoS guarantees

to evaluate the performance of EuQoS system (signalling, resource provisioning,

etc.)

supporting EuQoS system functions: Call Admission Control (CAC)

• to make CAC algorithm less preventive (Measurement Based Admission Control)

• to provide information about available QoS routing paths

Traffic Engineering and Resource Optimization (TERO)• to provide data for resource provisioning and optimization

Operation, Administration and Maintenance (OAM) • to on-line monitor QoS offered by CoSs

• to perform Network Anomaly Detection

MMS includes tools for:

Slide 5© EuQoS consortium 20 April 2023

MMS tools for trials

Problems with tools for evaluation of Classes of Services• There is a number of tools for measuring QoS parameters, but they do

not address QoS objectives of CoSs:• incompatible definition of QoS parameters, like IPTD, IPDV, IPLR, throughput• traffic models used in generators do not correspond to traffic profiles

assumed by Classes of Services, e.g. Multimedia streaming, Real Time interactive, etc.

• Traffic models of aggregated streams carried by Classes of Services are

missed, e.g. aggregated Multimedia streaming, Real Time interactive

• There is lack of methods and tools for QoE (Quality of Experience) assessment for emerging applications, e.g. on-line games

Problems with tools for evaluation signalling system• Limited number of tools, if any (especially tools giving insight into

signalling process) • No standard for metrics and methodology for IP• Call level traffic models should be specified for different types of

applications (CoSs)

CRBRCRCRBRBRCRBRCRCRBRBR

RM – Resource Manager

RA – Resource Allocator

AQ SSN – QoS Signalling and Service Negotiation

AS – Autonomous System

Monitoring and Measurement System in EuQoS (2)

Slide 6© EuQoS consortium 20 April 2023

Monitoring and Measurement System in EuQoS (3) MMS for supporting EuQoS system functions

Operation, Administration and Maintenance (OAM)• on-line monitoring of QoS offered by CoSs requires:

• a method/tool for on-line measuring of QoS parameters between each pair of domain ingress and egress points. (scalability!!)

• each point where CAC is performed should be loaded up to AC limit -> supplementary traffic generators cooperating with a resource reservation system are needed.

• Network Anomaly Detection should be oriented on traffic carried inside CoSs

Connection Admission Control• Measurements Based AC (MBAC) is aimed to make CAC less preventive

• there are some methods for streaming traffic, e.g. Hoeffding bounds, methods for elastic traffic are also needed

• problems with methods/tools for measuring traffic load on high speed links and in short time scale

• call setup proceeding requires information about availability of QoS paths (routing). tools for routing acquisition are needed (especially inter-domain).

Traffic Engineering and Resource Optimisation (TERO)• traffic matrix estimation for each CoS• monitoring of overprovisioning ?

Thank you