Improved Congestion Handling in Time Sensitive Networks Through Coordination Between Network Segments

    公开(公告)号:US20240129247A1

    公开(公告)日:2024-04-18

    申请号:US18393217

    申请日:2023-12-21

    Applicant: ABB Schweiz AG

    CPC classification number: H04L47/2433 H04L43/0882 H04L43/55

    Abstract: A method for operating a time-sensitive network (TSN) includes splitting data stream on network elements into a “preempting” class and a “preemptable” class based on a mapping from priority labels; forwarding the data streams to respective next-hop network elements, wherein the forwarding of “preempting” data streams takes precedence over the forwarding of “preemptable” data streams; and forwarding the data streams received from both segments based on the priority labels and the classes of the data streams to at least one next-hop network element; wherein forwarding of “preempting” data streams takes precedence over forwarding of “preemptable” data streams; wherein the priority label attached to the data stream that has the highest priority is different from the priority label attached to the data stream that has the highest priority within the second segment.

    Variable preemption in time sensitive networks using priority regeneration

    公开(公告)号:US12289242B2

    公开(公告)日:2025-04-29

    申请号:US17849845

    申请日:2022-06-27

    Applicant: ABB Schweiz AG

    Abstract: A method for operating a time-sensitive network, TSN, having a first, high-importance segment and a second, low-importance segment, includes remapping, using TSN per-port priority regeneration, priority labels attached to data streams received on the first port and the second port to updated priority labels; splitting the data streams into a “preempting” class and a “preemptable” class based on a mapping from updated priority labels to classes; and forwarding the data streams from a border network element to at least one next-hop network element. When congestion is present on a link to the next-hop network element, the forwarding of “preempting” data streams takes precedence over the forwarding of “preemptable” data streams.

    Interface apparatus between TSN-devices and non-TSN-devices

    公开(公告)号:US11929936B2

    公开(公告)日:2024-03-12

    申请号:US17176195

    申请日:2021-02-16

    Applicant: ABB Schweiz AG

    CPC classification number: H04L47/6275 H04L27/2682

    Abstract: A method for transmitting a first data packet from a receiving input-buffer to a receiving output-buffer, the first data packet in the receiving input-buffer having a non-TSN format and the first data packet in the receiving output-buffer being TSN-compliant, includes the steps of: analysing the first data packet, which has been retrieved from a non-TSN device, in the receiving input-buffer; adding a first data packet time to the first data packet according to a Precision Time Protocol (PTP); adding a predefined first data packet priority level to the first data packet according to a Priority Code Point (PCP) of an 802.1Q tag; transmitting the first data packet to the receiving output-buffer; and sending the first data packet according to the first data packet priority level to a TSN-compliant device.

    Collaborative testing of devices or subsections within a network

    公开(公告)号:US11792104B2

    公开(公告)日:2023-10-17

    申请号:US17961755

    申请日:2022-10-07

    Applicant: ABB Schweiz AG

    CPC classification number: H04L43/55

    Abstract: A method for testing a device or a subsection under test within a network includes generating, by at least one sending device that is a regular participant of the network and borders the device or subsection under test, at least one test data flow; sending the test data flow to at least one receiving device that is a regular participant of the network different from the sending device and also borders the device or subsection under test, on a path that passes through the device or subsection under test; determining, by the receiving device, at least one performance metric of the received test data flow; determining, based on the at least one performance metric, whether the device or subsection under test, and/or a link between this device or subsection under test and the sending device or receiving device, is performing according to at least one predetermined criterion.

    Method for Testing Networks Using Test Data Flows

    公开(公告)号:US20230111201A1

    公开(公告)日:2023-04-13

    申请号:US17961759

    申请日:2022-10-07

    Applicant: ABB Schweiz AG

    Abstract: A method for testing a network that comprises multiple devices includes sending, by a first device that is a regular participant of the network, on a path through the network, a test data flow to a second device that is another regular participant of the network; sending, by the second device, the received test data flow, and/or at least one diagnostic metric derived from this received test data flow, to a diagnostic entity; and determining, by the diagnostic entity, based at least in part on the test data flow, and/or on the diagnostic metric, received from the second device, whether the path through the network is performing according to at least one predetermined criterion.

    SYSTEM AND METHOD FOR ENABLING TSN-STREAM CONFIGURATION

    公开(公告)号:US20220070114A1

    公开(公告)日:2022-03-03

    申请号:US17411069

    申请日:2021-08-25

    Applicant: ABB Schweiz AG

    Abstract: A system for enabling Time-Sensitive Networking (TSN)-stream configuration of a TSN network includes: a gathering device for gathering resource utilization information from TSN switches of the TSN-stream configuration as gathered resource utilization information; and a tool device for providing a TSN stream path calculation based on the gathered resource utilization information and allocating stream paths and establishing channel multiplexing in the TSN network based on the gathered resource utilization information.

    Method for testing networks using test data flows

    公开(公告)号:US11870676B2

    公开(公告)日:2024-01-09

    申请号:US17961759

    申请日:2022-10-07

    Applicant: ABB Schweiz AG

    CPC classification number: H04L43/55 H04L43/10 H04L43/50

    Abstract: A method for testing a network that comprises multiple devices includes sending, by a first device that is a regular participant of the network, on a path through the network, a test data flow to a second device that is another regular participant of the network; sending, by the second device, the received test data flow, and/or at least one diagnostic metric derived from this received test data flow, to a diagnostic entity; and determining, by the diagnostic entity, based at least in part on the test data flow, and/or on the diagnostic metric, received from the second device, whether the path through the network is performing according to at least one predetermined criterion.

    Collaborative Testing of Devices or Subsections Within a Network

    公开(公告)号:US20230116553A1

    公开(公告)日:2023-04-13

    申请号:US17961755

    申请日:2022-10-07

    Applicant: ABB Schweiz AG

    Abstract: A method for testing a device or a subsection under test within a network includes generating, by at least one sending device that is a regular participant of the network and borders the device or subsection under test, at least one test data flow; sending the test data flow to at least one receiving device that is a regular participant of the network different from the sending device and also borders the device or subsection under test, on a path that passes through the device or subsection under test; determining, by the receiving device, at least one performance metric of the received test data flow; determining, based on the at least one performance metric, whether the device or subsection under test, and/or a link between this device or subsection under test and the sending device or receiving device, is performing according to at least one predetermined criterion.

    Transporting a Message from an Industrial End Device over an Ethernet Network

    公开(公告)号:US20230069976A1

    公开(公告)日:2023-03-09

    申请号:US17941147

    申请日:2022-09-09

    Applicant: ABB Schweiz AG

    Abstract: A method for transporting a message from an end device in an industrial plant over an Ethernet network with extended functionality for time-sensitive communication includes obtaining the message from a control application of the end device, mapping the message, based at least in part on the content of the message, to at least one functionality for time-sensitive communication converting the message into Ethernet frames; encoding a request to transport the message; transmitting the Ethernet frames; decoding the request; and forwarding the message on the Ethernet network according to the requested functionality for time-sensitive communication.

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