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WO2025201697A1 - Transfert de données entre des anneaux de protocole de redondance multimédia - Google Patents

Transfert de données entre des anneaux de protocole de redondance multimédia

Info

Publication number
WO2025201697A1
WO2025201697A1 PCT/EP2025/052048 EP2025052048W WO2025201697A1 WO 2025201697 A1 WO2025201697 A1 WO 2025201697A1 EP 2025052048 W EP2025052048 W EP 2025052048W WO 2025201697 A1 WO2025201697 A1 WO 2025201697A1
Authority
WO
WIPO (PCT)
Prior art keywords
subnetwork
network
data packet
redundancy protocol
identification information
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.)
Pending
Application number
PCT/EP2025/052048
Other languages
German (de)
English (en)
Inventor
Christian JEHLE
Andreas Zirkler
Rainer Mattes
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 Mobility GmbH
Original Assignee
Siemens Mobility GmbH
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 Mobility GmbH filed Critical Siemens Mobility GmbH
Publication of WO2025201697A1 publication Critical patent/WO2025201697A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks
    • H04L12/4637—Interconnected ring systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks
    • H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
    • H04L12/4645—Details on frame tagging
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/42—Loop networks
    • H04L2012/421—Interconnected ring systems

Definitions

  • the invention relates to a method for transmitting data via a communication network which has at least a first subnetwork with a first media redundancy protocol ring and at least a second subnetwork with a second media redundancy protocol ring.
  • Procedures for transmitting data over a communications network are generally known.
  • the operation of the at least two redundancy protocols is enabled by either assigning control over the data ports to be blocked to a single redundancy protocol, or selecting parameters for the at least two redundancy protocols, and/or arranging the operating procedures of the redundancy protocols in such a way that one redundancy protocol does not block connections that the other redundancy protocol considers to be active.
  • the protocols used are the Rapid Spanning Tree Protocol (RSTP) and/or the Media Redundancy Protocol (MRP).
  • the Media Redundancy Protocol (MRP) is a protocol for high-availability networks used in critical automation applications. MRP is based on a ring topology and guarantees a fast recovery time of a maximum of 200 milliseconds after a switch or line failure. MRP operates at the data link layer (OSI Layer 2) of Ethernet switches. It uses a redundancy manager (MRM) that closes the ring and ensures data traffic forwarding.
  • OSI Layer 2 data link layer
  • the phrase "assigning identification information to the data packet" should preferably be understood to mean that the identification information is added to the data packet.
  • the identification information is set as part of a header of the data packet.
  • the identification information is assigned to the data packet before the data packet is transmitted between the first and second subnetworks.
  • the identification information is assigned to the data packet as a VLAN ID according to the IEEE 802.1Q standard.
  • VLAN ID the VLAN ID for MRP packets is generally "0" or there is no VLAN tag at all.
  • the phrase "assigning" the VLAN ID to the data packet should therefore preferably be understood to mean that the VLAN ID of the MRP data packet is set to something other than "0.”
  • the MRP data packet is assigned a dedicated VLAN ID.
  • FRER network components The network components that operate according to the redundancy protocol based on Frame Replication and Elimination for Reliability are also referred to below as FRER network components.
  • the VLAN in which the first and second Media Redundancy Protocol rings are embedded comprises a network operating according to the FRER protocol.
  • the respective first and second subnetworks contain MRP components or devices operating according to MRP, as well as FRER network components or devices operating according to FRER.
  • At least the MRP components or devices are configured according to a ring architecture within the subnetwork.
  • the identification information is assigned to the data packet by means of at least one of the network components. This represents a particularly expedient embodiment, because the FRER network component is particularly suitable for assigning the identification information to the data packet.
  • This configuration of the communications network and the corresponding embodiment of the method according to the invention are particularly advantageous when the VLAN comprises network components that operate according to FRER.
  • the first and second connections are used for the parallel transmission of the frame copy on different paths (namely, the first and second connections) between the first and second subnetworks.
  • the VLAN IDs of the FRER packets used for the separate paths can therefore be used for the data packet for transmission between the first and second subnetworks.
  • the identification information assigned to the data packet according to the invention corresponds to the VLAN ID assigned to one of the FRER packets transmitted on separate paths.
  • the aforementioned object is further achieved by a computer program.
  • the computer program comprises instructions which, when executed by a computing device of the communications network, cause the computing device to execute the communication method of the type described above.
  • the invention further relates to a computer program product comprising a computer program of this type.
  • the computing device is preferably, at least in part, a computing device of a rail-bound vehicle and/or a computing device of a land-based facility.
  • the object mentioned above is further achieved by a provision device for the computer program of the type described above, wherein the provision device stores and/or provides the computer program.
  • the provision device is, for example, a storage unit that stores and/or provides the computer program.
  • the provision device is, for example, a network service, a computer system, a server system, in particular a distributed, for example, cloud-based computer system and/or virtual computer system, which stores and/or provides the computer program product, preferably in the form of a data stream.
  • the provision takes place in the form of a program data block as a file, in particular as a download file, or as a data stream, in particular as a download data stream, of the computer program. However, this provision can also take place, for example, as a partial download consisting of multiple parts.
  • Such a computer program is, for example, read into a system using the provision device, so that the method according to the invention is executed on a computer.
  • the aforementioned object is further achieved by a communication system for transmitting data via a communication network.
  • the communication network comprises a first subnetwork with a first media redundancy protocol ring and at least one second subnetwork with a second media redundancy protocol ring.
  • the communication network is configured to transmit a data packet using the media redundancy protocol within the first or second subnetwork.
  • a network component is configured to assign identification information to the data packet, which corresponds to a virtual local area network (VLAN) in which the first and second subnetworks are embedded.
  • VLAN virtual local area network
  • the communication network is configured to transmit the data packet between the first and second subnetworks based on the assigned identification information.
  • a system comprising a rail-bound vehicle of the type described above and a land-based facility.
  • the system has a communications system of the type described above.
  • a communications link of the communications system preferably establishes a data connection between the vehicle and the land-based facility.
  • the land-based facility includes, for example, a signal box with a communication system of the type described above.
  • the communication system is therefore part of the track-bound vehicle and/or part of the land-based facility.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Small-Scale Networks (AREA)

Abstract

L'invention concerne un procédé de communication et un système de communication (1) pour transmettre des données via un réseau de communication (2) qui comporte un premier sous-réseau (6) avec un premier anneau de protocole de redondance multimédia (7) et au moins un second sous-réseau (8) avec un second anneau de protocole de redondance multimédia (9). Afin d'améliorer la transmission de données via un réseau de communication de ce type, un paquet de données (136) qui est codé selon le protocole de redondance multimédia est transmis entre les premier et second sous-réseaux (6, 8), et le paquet de données (136) est attribué à des informations d'identification (ID32, ID34) qui correspondent à un réseau local virtuel (VLAN) dans lequel les premier et second sous-réseaux (6, 8) sont intégrés.
PCT/EP2025/052048 2024-03-27 2025-01-28 Transfert de données entre des anneaux de protocole de redondance multimédia Pending WO2025201697A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102024202929.7A DE102024202929A1 (de) 2024-03-27 2024-03-27 Übertragen von Daten zwischen Medienredundanzprotokoll-Ringen
DE102024202929.7 2024-03-27

Publications (1)

Publication Number Publication Date
WO2025201697A1 true WO2025201697A1 (fr) 2025-10-02

Family

ID=94637282

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2025/052048 Pending WO2025201697A1 (fr) 2024-03-27 2025-01-28 Transfert de données entre des anneaux de protocole de redondance multimédia

Country Status (2)

Country Link
DE (1) DE102024202929A1 (fr)
WO (1) WO2025201697A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030165119A1 (en) * 2002-03-04 2003-09-04 Hsu Ivy Pei-Shan Network configuration protocol and method for rapid traffic recovery and loop avoidance in ring topologies
EP2409458A1 (fr) 2009-03-18 2012-01-25 Hirschmann Automation and Control GmbH Exploitation en parallèle de protocoles rstp (rapid spanning tree protocol) et mrp (media redundancy protocol) et segmentation/couplage
US20170134342A1 (en) * 2014-06-27 2017-05-11 Siemens Aktiengesellschaft Data Network Of A Device, In Particular A Vehicle
US20190173782A1 (en) * 2017-12-04 2019-06-06 iS5 Communications Inc. Multiple rstp domain separation

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020125987A1 (fr) * 2018-12-20 2020-06-25 Siemens Aktiengesellschaft Procédé de communication de données, comportant une exigence applicable relative à la fiabilité, appareil de communication, programme informatique et support lisible par ordinateur

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030165119A1 (en) * 2002-03-04 2003-09-04 Hsu Ivy Pei-Shan Network configuration protocol and method for rapid traffic recovery and loop avoidance in ring topologies
EP2409458A1 (fr) 2009-03-18 2012-01-25 Hirschmann Automation and Control GmbH Exploitation en parallèle de protocoles rstp (rapid spanning tree protocol) et mrp (media redundancy protocol) et segmentation/couplage
US20170134342A1 (en) * 2014-06-27 2017-05-11 Siemens Aktiengesellschaft Data Network Of A Device, In Particular A Vehicle
US20190173782A1 (en) * 2017-12-04 2019-06-06 iS5 Communications Inc. Multiple rstp domain separation

Also Published As

Publication number Publication date
DE102024202929A1 (de) 2025-10-02

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