WO2012089708A1 - Dispositif et procédé de surveillance de trafic de bout en bout et de mesure de qualité délivrée à des consommateurs dans des réseaux optiques passifs - Google Patents

Dispositif et procédé de surveillance de trafic de bout en bout et de mesure de qualité délivrée à des consommateurs dans des réseaux optiques passifs Download PDF

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Publication number
WO2012089708A1
WO2012089708A1 PCT/EP2011/074050 EP2011074050W WO2012089708A1 WO 2012089708 A1 WO2012089708 A1 WO 2012089708A1 EP 2011074050 W EP2011074050 W EP 2011074050W WO 2012089708 A1 WO2012089708 A1 WO 2012089708A1
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WO
WIPO (PCT)
Prior art keywords
monitoring
module
qos
data
passive
Prior art date
Application number
PCT/EP2011/074050
Other languages
English (en)
Inventor
Antonio CUADRA SÁNCHEZ
Maria del Mar CUTANDA RODRÍGUEZ
Original Assignee
Telefonica, S.A.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Telefonica, S.A. filed Critical Telefonica, S.A.
Publication of WO2012089708A1 publication Critical patent/WO2012089708A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/50—Network service management, e.g. ensuring proper service fulfilment according to agreements
    • H04L41/5061—Network service management, e.g. ensuring proper service fulfilment according to agreements characterised by the interaction between service providers and their network customers, e.g. customer relationship management
    • H04L41/5067—Customer-centric QoS measurements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/04—Processing captured monitoring data, e.g. for logfile generation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/06—Generation of reports
    • H04L43/062—Generation of reports related to network traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/12—Network monitoring probes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q2011/0079—Operation or maintenance aspects
    • H04Q2011/0083—Testing; Monitoring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q2011/0084—Quality of service aspects

Definitions

  • PON networks are designed to deploy fiber optic capacity to the subscriber's home. However, its design is highly dependent on the inherent nature of the access environment.
  • OLT optical line terminal
  • ONT optical network terminal
  • ONT optical network terminal
  • the ONT receives the signal from the OLT through a VLAN (that balances the optical signal amongst different ONT) and transforms it into an electronic signal that can be useful to extend telephone services, data, television, etc. over an IP routing gateway (RGW)
  • the ONT also provides IP connectivity back to the OLT.
  • Figure 1 illustrates the interconnection between the subscriber and the node distribution done with passive networks as described above.
  • An Optical Network Terminal is a type of network interface device used with fiber-to-the-premises applications that is used to terminate the fiber optic line and demultiplex the signal into its components (voice, television, and Internet in current triple play services). This way the ONT converts the optical signal into electric pulses that can be handled by end devices (routers, PC, STB, softphones, etc.).
  • Optical network unit A generic term denoting a device that terminates any one of the distributed (leaf) endpoints of an ODN, implements a PON protocol, and adapts PON PDUs to subscriber service interfaces.
  • an ONU implies a multiple-subscriber device.
  • the Optical Front End acts as the interface from the fiber access network and the ONT
  • the PON controller consists of the core element with Service MUX and
  • the trend is to use monitoring systems based on passive probes because they provide a very realistic view of the behavior of a network and its services, which capture the real traffic generated by their subscribers.
  • the probe-based systems are dimensioned based on a commitment to deploy probes against having a complete overview of the network.
  • Embedded agents can deal with this complexity, but must be placed close to customers (in customer premises, not in the core or access network -OLT-) and must include all the offered services provided by an operator (SetTopBoxes only for IPTV), for instance by reconstructing detailed records (XDR) of each service and generating QoS figures of any offered service, such as Multicast TV, Video on demand (VoD), transactional supporting services (mail, purchases, etc.), Video calls, etc.
  • SetTopBoxes only for IPTV for instance by reconstructing detailed records (XDR) of each service and generating QoS figures of any offered service, such as Multicast TV, Video on demand (VoD), transactional supporting services (mail, purchases, etc.), Video calls, etc.
  • the device of the invention comprises, in a characteristic manner, a passive monitoring module arranged inside said ONU for monitoring, by sniffing, the traffic handled by the ONU.
  • the QoS module is arranged inside or outside the ONU.
  • FIG. 2 shows the generic ONT/ONU functional block diagram
  • Figure 5 shows schematically the deployment diagram of the device of the first aspect of the invention embedded in an ONU, for implementing the steps of the method of the second aspect, indicated as (1 ) to (5) in Figure 5, for an embodiment
  • Figure 6 shows schematically the main internal blocks of an ONT including the device of the first aspect of the invention, emphasizing the main blocks used as two main stages of the method of the second aspect, i.e. the passive monitoring module, associated to an I/O module in an Interface Stage, and the QoS module included in a E2E QoS Stage;
  • FIG 8 shows an overview of the E2E QoS stage of Figure 6, and its connections and data flows with the Interface Stage;
  • Figure 4 shows the layout of this device embedded within an ONT in the PON network architecture.
  • the second aspect of the invention relates to a method for measuring the quality of service (QoS) by analyzing the data provided by the previous monitoring module of the device, by installing probes embedded agents in each ONU, which extracts information from the communication between clients and servers offered by various services, including:
  • Audiovisual services IPTV, MobileTV, Multicast TV, Video on demand (VoD), Pay per view (PPV), etc.
  • Data services Internet access, Webmail, electronic commerce, etc.
  • Communication services Telephony over IP, Videocalls, Teleconferences, etc.
  • This quality module is based on the reconstruction of detailed records of the monitored services to generate them from the service quality measures.
  • the methodology can be based on passive sensors based functionalities, and may incorporate experience quality parameters such as MOS.
  • Figure 5 shows the deployment diagram of this proposal, which integrates in an ONU the device of the invention including the monitoring module and the QoS functionality, or QoS module.
  • sequenced steps of the method of the second aspect of the invention are, according to the embodiment of Figure 5, the next:
  • the ONU forwards to the QoS module the real traffic between customers and core network by making use of its handling network capabilities. Configuration filtering criteria is applicable.
  • the QoS module calculates quality indicators based on real users' traffic.
  • the QoS module sends the quality measures to the ONU network capabilities, in order to send the metrics to the monitoring centre.
  • ONU Optical Network Unit
  • I/O interface can also be used for managing purposes to configure the different modules, i.e. monitoring criteria, quality metrics algorithm, quality metrics reporting, etc.
  • the method is specified in two stages, as represented in Figure 6, by using the different blocks of the device there illustrated, including the monitoring module, the QoS module and the I/O module.
  • the first stage (Interface Stage) is embedded in the ONT in order to monitor the traffic and control the input-output procedures between the different modules, and the monitored network (users' traffic) as well as the monitoring centre, through the current available access capabilities of an ONT (incoming users' traffic from the Optical Front-End through the PON Controller, outgoing monitoring traffic and connection with the Monitoring Centre towards the second stage also through the PON Controller).
  • the second stage receives the monitored traffic from the previous stage and returns the QoS data to the monitoring centre, such as XDRs
  • This second stage is highly recommended to be implemented inside the ONT because the QoS figures are calculated with higher accuracy and there are obvious benefits on having all the modules inside a single built-in hardware, but alternatively can be embedded in a separate device.
  • the main management capabilities are: Configuration (Start, Stop, Restart, Update SW), Filtering (delete duplicated data, and classify traffic, protocols, users, services) and Distribution (towards which element the QoS data must be sent, reporting period or type of quality figures).
  • Monitoring Module This module sniffs real users' traffic (1 ): The PON Controller forwards the traffic between the customer and core network towards the monitoring module by making use of its handling capabilities.
  • the monitoring module may receive configuration management instructions (3) from the management centre through the I/O Module.
  • I/O Module acts as interface between the external management system, which centralizes the quality data from any source, and the rest of the modules and stages of this invention.
  • E2E Quality Stage receives the monitoring data (2) and generates the QoS metrics by applying the corresponding QoS algorithms, so that this module calculates quality indicators based (KQI) on real users' traffic, e.g. from detailed records (XDR).
  • KQI quality indicators based
  • This stage forwards them to the monitoring centre using the I/O module interface (5).
  • This interface in inbound direction can be also used for managing the E2E QoS Stage.
  • Figure 9 shows the communication between different modules in terms of a flowchart, in which three kind of information are handled: monitoring, measurements and management.
  • the monitoring module sends the monitoring data to the
  • QoS module in a constant flow.
  • This information can be either raw user data, optionally filtered, or already processed in terms of XDR (detailed records), KPIs (Key Performance Indicators) o KQI (Key Quality Indicators).
  • E2E QoS Data Once the quality information has been generated in the E2E QoS stage, the E2E QoS data is sent periodically to the I/O module. This data can be aggregated in time (i.e. each 5 minutes, 1 hour, daily, etc.) in order not to send the data in a constant flow but time-spaced.
  • the configuration management is directly forwarded from the monitoring system to the E2E QoS Stage though the I/O module.
  • the workflow include the configuration commands (requests) and the configuration responses (acknowledges).
  • the configuration management is applied in the same way to the configuration of the monitoring module. Use case: Triple Play E2e QoS Monitoring:
  • indicators of quality metrics for this service are:
  • indicators of quality metrics for this service are:
  • Rate of effectiveness of the service are calculated for example from the following monitored protocols, although the solution is valid for any service and protocol:
  • control synchronized data streams such as audio or video.
  • -SIP standard for the initiation, modification and termination of interactive user sessions involving multimedia elements such as video, voice, etc.
  • -To have a customer perspective of services as monitors real users' traffic. -To have an overall sight of all offered services as the ONU is the catalyst of all the services offered to a customer in optical networks (voice, data and multimedia).
  • the ONU serves as a bridge between the digital home network and FTTH, and therefore the catalyst for all the services offered to customers (VoIP, IPTV and Internet today). Since the ONTs are the equipment boundary between the customer premises network and FTTH, will extend all the traffic and services used by customers, so are a valuable source of data for surveillance and monitoring service quality.
  • the present invention provides, thus, a realistic vision of any perceived service used by any of their customers in terms of having access to real users' traffic and therefore their perception.
  • the usage of the method of the invention can be applied to a network operator or service provider in order to have a reliable tool to know what is the customer behavior for any service.
  • the device of the invention can be integrated inside any existing operation support system (OSS) already deployed in the company. Therefore, the use of the device and the performance of the method of the invention allow making a realistic approach of QoS/QoE monitoring, which can be used for different purposes, such as service planning, characterization of service usage, deep packet inspection, fault management, etc.
  • OSS operation support system

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Business, Economics & Management (AREA)
  • General Business, Economics & Management (AREA)
  • Data Mining & Analysis (AREA)
  • Optical Communication System (AREA)
  • Small-Scale Networks (AREA)

Abstract

L'invention porte sur un dispositif destiné à surveiller un trafic de bout en bout et à mesurer une qualité délivrée à des consommateurs dans des réseaux optiques passifs (PON), et comprend un module de surveillance passive agencé à l'intérieur d'une ONU du PON pour surveiller, par reniflage, le trafic traité par l'ONU. Le procédé consiste à surveiller d'une manière interne le trafic circulant dans une ONU au moyen d'un module de surveillance passive agencé dans celle-ci, et mesurer la qualité de service à partir du trafic surveillé.
PCT/EP2011/074050 2010-12-28 2011-12-26 Dispositif et procédé de surveillance de trafic de bout en bout et de mesure de qualité délivrée à des consommateurs dans des réseaux optiques passifs WO2012089708A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ESP201031977 2010-12-28
ES201031977A ES2390546B1 (es) 2010-12-28 2010-12-28 Dispositivo y método para monitorizar tráfico de extremo a extremo y medir la calidad entregada a los clientes en redes ópticas pasivas

Publications (1)

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WO2012089708A1 true WO2012089708A1 (fr) 2012-07-05

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AR (1) AR084616A1 (fr)
ES (1) ES2390546B1 (fr)
WO (1) WO2012089708A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
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WO2015052089A1 (fr) * 2013-10-08 2015-04-16 Alcatel Lucent Validation de canaux vidéo sur protocole internet
WO2013059486A3 (fr) * 2011-10-18 2015-07-30 Quantabits Inc. Systèmes, procédés et appareil pour exécuter des communications de données sur des réseaux optiques passifs ethernet
WO2015154549A1 (fr) * 2014-08-11 2015-10-15 中兴通讯股份有限公司 Procédé et dispositif de traitement de données
CN110475166A (zh) * 2019-08-19 2019-11-19 深圳市双翼科技股份有限公司 一种无源光网络的数据异常排查方法及系统
US10715575B2 (en) 2015-06-02 2020-07-14 Dolby Laboratories Licensing Corporation In-service quality monitoring system with intelligent retransmission and interpolation
CN111654764A (zh) * 2019-03-04 2020-09-11 深圳市茁壮网络股份有限公司 终端管理方法及系统
WO2020238251A1 (fr) * 2019-05-31 2020-12-03 华为技术有限公司 Procédé de transmission de données et dispositif associé
CN113453096A (zh) * 2021-06-04 2021-09-28 中国联合网络通信集团有限公司 一种无源光网络pon口流量的预测方法及装置

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US20070230956A1 (en) * 2006-03-31 2007-10-04 Hiroki Ikeda Channel switching system and method of IPTV service in passive optical network
EP2104250A1 (fr) * 2008-03-18 2009-09-23 Alcatel Lucent Procédé de surveillance pour réseau optique passif
CN101615956A (zh) * 2008-06-28 2009-12-30 华为技术有限公司 一种onu及光功率调整的方法和系统

Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
US20070230956A1 (en) * 2006-03-31 2007-10-04 Hiroki Ikeda Channel switching system and method of IPTV service in passive optical network
EP2104250A1 (fr) * 2008-03-18 2009-09-23 Alcatel Lucent Procédé de surveillance pour réseau optique passif
CN101615956A (zh) * 2008-06-28 2009-12-30 华为技术有限公司 一种onu及光功率调整的方法和系统

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013059486A3 (fr) * 2011-10-18 2015-07-30 Quantabits Inc. Systèmes, procédés et appareil pour exécuter des communications de données sur des réseaux optiques passifs ethernet
WO2015052089A1 (fr) * 2013-10-08 2015-04-16 Alcatel Lucent Validation de canaux vidéo sur protocole internet
TWI565259B (zh) * 2013-10-08 2017-01-01 阿爾卡特朗訊公司 網路協定視訊通道驗證
WO2015154549A1 (fr) * 2014-08-11 2015-10-15 中兴通讯股份有限公司 Procédé et dispositif de traitement de données
US10715575B2 (en) 2015-06-02 2020-07-14 Dolby Laboratories Licensing Corporation In-service quality monitoring system with intelligent retransmission and interpolation
US11223669B2 (en) 2015-06-02 2022-01-11 Dolby Laboratories Licensing Corporation In-service quality monitoring system with intelligent retransmission and interpolation
CN111654764A (zh) * 2019-03-04 2020-09-11 深圳市茁壮网络股份有限公司 终端管理方法及系统
WO2020238251A1 (fr) * 2019-05-31 2020-12-03 华为技术有限公司 Procédé de transmission de données et dispositif associé
US11652660B2 (en) 2019-05-31 2023-05-16 Huawei Technologies Co., Ltd. Optical line terminal and data transmission method, system, and apparatus
CN110475166A (zh) * 2019-08-19 2019-11-19 深圳市双翼科技股份有限公司 一种无源光网络的数据异常排查方法及系统
CN113453096A (zh) * 2021-06-04 2021-09-28 中国联合网络通信集团有限公司 一种无源光网络pon口流量的预测方法及装置
CN113453096B (zh) * 2021-06-04 2022-12-13 中国联合网络通信集团有限公司 一种无源光网络pon口流量的预测方法及装置

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Publication number Publication date
AR084616A1 (es) 2013-05-29
ES2390546B1 (es) 2013-10-02
ES2390546A1 (es) 2012-11-14

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