EP3158695A1 - Procédé de transmission de données et noeud de réseau associé et réseau associé - Google Patents

Procédé de transmission de données et noeud de réseau associé et réseau associé

Info

Publication number
EP3158695A1
EP3158695A1 EP15756135.8A EP15756135A EP3158695A1 EP 3158695 A1 EP3158695 A1 EP 3158695A1 EP 15756135 A EP15756135 A EP 15756135A EP 3158695 A1 EP3158695 A1 EP 3158695A1
Authority
EP
European Patent Office
Prior art keywords
network
application
resources
virtual
transmission
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP15756135.8A
Other languages
German (de)
English (en)
Inventor
Amine Mohamed Houyou
Hans-Peter Huth
Vivek Kulkarni
Johannes Riedl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP3158695A1 publication Critical patent/EP3158695A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/70—Admission control; Resource allocation
    • 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
    • H04L41/04—Network management architectures or arrangements
    • H04L41/046—Network management architectures or arrangements comprising network management agents or mobile agents therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/60—Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources
    • H04L67/61—Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources taking into account QoS or priority requirements

Definitions

  • the invention relates to a method for transmitting data of an application, a corresponding network node and a corresponding network.
  • Industrial networks are being used particularly in areas such as industrial automation using Ethernet and IP-based networks, traffic control, machine-to-machine communication, and SCADA (Supervisory Control And Data
  • the object of the present invention is to provide a possibility of designing a data transmission in a network in such a way that, in particular, the resources available for the transmission are allocated efficiently and reliably.
  • One aspect of the invention is to provide for data of an application an existing or to be created virtual part ⁇ network, quality parameters for a transfer of the data of the application can be met in the. Quality parameters can be formed in particular from bandwidth for ei ⁇ ne transmission, reliability of transmission, allowable time offset or "delay", security or / and importance or priority of the data to be transmitted.
  • the invention also relates to a method for transmitting data of an application, which runs on a source node, to a destination node,
  • the requested resources can be mapped to a virtual subnet that can be defined by the quality parameters, followed by a check as to whether such a virtual subnet already exists and, if it exists, granting access rights to this virtual subnet.
  • resources required by the network such as bandwidth or usable QoS, and reachable endpoints are constrained. These are restrictions A ⁇ especially by a "slice" or slices mechanism (Policy Control) enforced where the available network resources are managed and examples play as virtual networks are established and are awarded to ⁇ access rights to it.
  • policy Control Policy Control
  • the invention also relates to a control device which can receive a request for resources. Furthermore, the control device has information regarding the network, for example which nodes, which connections etc. are available. The controller, in response to the received request, allocates at least a portion of the resources by granting access rights to a virtual network that is formable from at least a portion of the network.
  • Figure 1 is a schematic representation of the decoupling of
  • Figure 2 shows different representations of the situation that run on a terminal multiple applications, namely
  • Figure 3 is a simplified communication service architecture
  • Figure 4 is a simplified embodiment of the use of a local software agent
  • FIG. 1 shows a schematic representation of the decoupling between the level of the automation application and the communication infrastructure level.
  • This management layer ML or management layer represents an abstraction of the network resources available for automation programming.
  • the management layer ML is furthermore able to provide on-demand or on request communication services, such as messaging services, event services, secure and reliable communication services, reservation mechanisms for the application.
  • this network virtualization largely separates the applications and their claimed resources. There- This minimizes mutual interference and increases security.
  • This management layer ML is set up on any network infrastructure CI. This has the consequence that the developer of the automation application would see the network itself as a "black box", which supplies various types of communication services via a defined interface or interface.
  • FIG. 2 a shows an application view which describes and / or summarizes applications in relation to network and network communication requirements.
  • the application view describes, from a superordinate point of view, the applications assigned to the transmitter T, e.g. the first application AI and the second application A2.
  • Their endpoints or goals namely the recipients or listeners L, the desired quality of service (QOS) and reliability requirements as well as other requirements are listed. The list of these requirements is not limited per se.
  • the so-called slice view refers to the management layer SL as a virtual optimization plane, on which the requirements that the application places with regard to the communication point to an abstract representation of the network which comprises various nodes with predetermined resources, capabilities, this abstract representation of the network being the ⁇ actual physical topology of the network advantage reflectors.
  • data of the application AI and A2 are firstly transmitted to different receivers L.
  • the transmission via different paths which may correspond to a differing ⁇ chen time delay occurs in the transmission to the same receiver at the bottom right.
  • pane view provides the ability to design optimization ⁇ approximately criteria and training algorithms that are specific to the particular field, taking into account any different technologies and standards with their respective capabilities. Optimization can take place in a software function, which is executed in the form of a slice manager or "slice manager.” Via a communication service interface CSI or Communication Service Interface, ie a local software agent, the connection between application representation can be made and disc presentation, since the requirements of an application are related to the network conditions.
  • CSI or Communication Service Interface ie a local software agent
  • the physical network view shown in FIG. 2c which relates to the network infrastructure layer CI, includes the functionality required to capture network-dynamic aspects, such as, for example, detecting nodes, state of a connection, network topology, as well as offered features and resources also the signaling and so-called “slice mapping decisions" that were made in the higher level.
  • FIG. 3 a controllable production module or "Cyber Physical Production Module” CPPM suitable for cooperation with other elements is schematically decomposed into the planes illustrated in FIG.
  • the speed of a production module CPPM designed as a conveyor belt is adapted to the gripping movement of a further production module designed as a gripper robot. This requires a communication or data exchange between these two production modules, which runs via this application.
  • certain requirements are set for communication with one or more other production modules. For example, require a relatively large bandwidth video over ⁇ tragungsap bearing for assembly line track while lesser requirement that a delay will be provided in the transmission to a time offset. Also, safety requirements, ie, for example, precautions against eavesdropping or manipulation by others, could be reduced here. Also regarding The reliability of the transmission can be compromised here if the video transmission is not primarily important for the production itself.
  • the requirements and quality parameters are gege ben ⁇ from the application level to the management layer or plane ML.
  • the communication service interface CSI is located at the level of the management layer ML. This acts as a "translator" of the coming of the application level requirements, the translation is such that the there ⁇ down lying communication infrastructure level CI to utilize.
  • the application level AA so the actual conditions of the communication infrastructure level CI do not have to be known.
  • the Medunikationsservice- interface CSI has at its disposal a "set of instructions" or a set of commands, which depends on the communication infrastructure level CI.
  • SEP Selice Enforcement Point
  • elements framed by rectangles indicate signal, control and enforcement functions. Elements encircled with an ellipse represent an application that issues certain requests. For example, the Plug & Automate application PA-A issues a request regarding the required transmission resources to the communication service interface CSI located in the lower management level.
  • a local commu ⁇ nikationsservice interface CSI is provided which, for example, acts as a local software agent.
  • a terminal can be here in particular a production module CPPM ⁇ .
  • the production module may comprise CPPM to a network node as a network node Fungie ⁇ ren or an interface for the communication itself.
  • This local communication service interface CSI allows a limited selection of possible commands that can be play as regulated by safety directives or decisions of an operator in ⁇ and / or marginal ⁇ conditions of the underlying physical network infrastructure.
  • the local communication service interface CSI can the local slice Enforcement Point in September as the entry point benut ⁇ zen. There is no direct connection between the communica ⁇ tion service interface CSI and the application-level on the automation AA provided disk administrator or manager Slice provided.
  • the local communication service interface CSI is responsible for the implementation of local configurations, which may be required, but are independent of the division into virtual subnets or disks themselves, so for example the management of local access control.
  • CSI which is an integral part of the production module CPPM
  • a management interface or management Inter ⁇ face MI provided for the operator of the network that supports the division into slices or virtual networks, ie it can be part of a management Be and system-wide configuration means as well as an interface to planning tools or planning tools.
  • the Slice Enforcement Point SEP is a logical function that manages network interfaces of terminals, in particular production modules, switches or switches, routers or other network devices. Through the Slice Enforcement Point SEP, the actual configuration of the relevant interfaces and devices is realized using the available resources.
  • a slice enforcement point SEP can be an agent on this device or a local controller. Alternatively or additionally, the slice enforcement point SEP can be realized by software algorithms in the slice manager or SM "SM" using a non-local or remote configuration interface, for example according to the Internet standard SNMP (Simple Network Management Protocol, IETF RFC 3410) or other management standards.
  • SNMP Simple Network Management Protocol
  • the Disk Manager SM or administrator is shown separately in the embodiment in Figure 4 as the production ⁇ tion module ke virtual net-.
  • the disk manager can be implemented in the production module CPPM or as a separate unit with interfaces.
  • corresponding counterparts for slice enforcement point SEP namely the SEP counterpart SEP CP
  • communication service interface CSI namely the CSI counterpart CSI CP
  • the SEP Counterpart SEP CP is in the embodiment shown in Figure 3 part of a network management and control NMC for one or more of the proposed networks, such as Profinet, Ethernet, ZigBee or others.
  • a network management and control NMC for one or more of the proposed networks, such as Profinet, Ethernet, ZigBee or others.
  • these different technologies can be brought together under one roof, ie the administration can be done for all, regardless of the technology.
  • the management interface MI of the disk manager SM exchanges data with an application coordination point AO or application configuration server, which coordinates which applications or applications can run under the given physical boundary conditions, for example, that the overall bandwidth of the system is not exceeded.
  • the application coordination point AO may be a network interface controller or NIC.
  • a slice or a virtual subnet is first set up.
  • QoS quality of service
  • a Plug & Automate Requestor PA-R which may be, for example, a specific application, would like to join a slice or virtual network, ie it requests a transmission with certain quality features by a membership request JS.
  • the communication service interface CSI directs the gege ⁇ appropriate, reformulated request to join or "Join Request" JS 'for Slice Enforcement Point in September so this transmission is done indirectly by the communication service interface CSI is used.
  • the slice enforcement point SEP examines the request and forwards it to the slice manager or slice manager SM.
  • the latter checks the request in step CR and in the example shown accepts the request in step OK ID and sends a disk identifier or slice identifier back to the slice enforcement point SEP. It generates and confi ⁇ riert in step CC a virtual network interface VNIC and sends in step OK VNIC a confirmation with the name of the virtual interface to the Kirunikationsservice- interface CSI back.
  • step SAR the SEP sets the local access rights and, in step OK VNIC X, sends a confirmation about the name of the virtual interface to the Plug & Automate Requestor PA-R.
  • the slice manager SM also configures the network in such a way as to create a new virtual network that provides the resources with the specified quality conditions.
  • the slice enforcement point SEP can create a local slice endpoint, which is essentially a layer 2 interface that is associated with quality requirements and other network policies.
  • the local identifier of this new interface is returned to the application via the CSI service interface. After this step, the Data transfer of the application using the new disk interface or slice interface.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

L'invention concerne un procédé de transmission de données d'une application qui s'exécute sur un nœud source en direction d'un nœud cible, selon lequel les ressources nécessaires à cette transmission dans un réseau sont demandées, et selon lequel le réseau peut être divisé en au moins deux réseaux partiels virtuels et présente une pluralité de nœuds. Le procédé comprend les étapes suivantes : a. demande de ressources qui sont spécifiées par une pluralité de paramètres de qualité par une application qui s'exécute sur le nœud source; transmission des données de l'application sur un réseau partiel virtuel dans lequel les ressources demandées sont disponibles.
EP15756135.8A 2014-09-25 2015-08-19 Procédé de transmission de données et noeud de réseau associé et réseau associé Withdrawn EP3158695A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014219472.5A DE102014219472A1 (de) 2014-09-25 2014-09-25 Verfahren zum Übertragen von Daten, Netzknoten und Netzwerk
PCT/EP2015/069087 WO2016045885A1 (fr) 2014-09-25 2015-08-19 Procédé de transmission de données et nœud de réseau associé et réseau associé

Publications (1)

Publication Number Publication Date
EP3158695A1 true EP3158695A1 (fr) 2017-04-26

Family

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EP15756135.8A Withdrawn EP3158695A1 (fr) 2014-09-25 2015-08-19 Procédé de transmission de données et noeud de réseau associé et réseau associé

Country Status (5)

Country Link
US (1) US20170302587A1 (fr)
EP (1) EP3158695A1 (fr)
CN (1) CN107078973A (fr)
DE (1) DE102014219472A1 (fr)
WO (1) WO2016045885A1 (fr)

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US10374965B2 (en) * 2015-06-01 2019-08-06 Huawei Technologies Co., Ltd. Systems and methods for managing network traffic with a network operator
US10349240B2 (en) 2015-06-01 2019-07-09 Huawei Technologies Co., Ltd. Method and apparatus for dynamically controlling customer traffic in a network under demand-based charging
WO2018121864A1 (fr) * 2016-12-29 2018-07-05 Siemens Aktiengesellschaft Procédé de fonctionnement d'un réseau de communication d'un système d'automatisation industrielle comprenant une pluralité d'appareils de communication et unité de commande
EP4096189A1 (fr) * 2017-03-24 2022-11-30 Huawei Technologies Co., Ltd. Procédé, appareil et système de configuration de tranche de réseau
EP3741085B1 (fr) * 2018-01-19 2023-03-15 Koninklijke KPN N.V. Utilisation de tranche du réseau
DE102018124106A1 (de) 2018-09-28 2020-04-02 Rockwell Collins Deutschland Gmbh Datenverarbeitungsvorrichtung mit mehreren Prozessoren und mehreren Schnittstellen
CN113542091B (zh) * 2020-04-15 2022-07-19 阿里巴巴集团控股有限公司 通信和访问控制方法、设备、装置、系统及存储介质
CN114945206B (zh) * 2021-02-09 2023-11-10 中国科学院沈阳自动化研究所 Profinet协议在5g-lan中的接入方法

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Also Published As

Publication number Publication date
WO2016045885A1 (fr) 2016-03-31
CN107078973A (zh) 2017-08-18
US20170302587A1 (en) 2017-10-19
DE102014219472A1 (de) 2016-03-31

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