Communication Method and System Applied to Metro Transport Network MTN or Slicing Packet Network SPN

    公开(公告)号:US20230283541A1

    公开(公告)日:2023-09-07

    申请号:US18317650

    申请日:2023-05-15

    IPC分类号: H04L45/00 H04L41/0654

    CPC分类号: H04L45/22 H04L41/0654

    摘要: Embodiments of this application disclose a communication method and system applied to an MTN or an SPN. An MTN communication system includes a third communication apparatus connected to the first communication apparatus and the second communication apparatus by using a first MTN path and a second MTN path respectively. If the second MTN path is available, the third communication apparatus transmits data stream corresponding to a first client by using the second MTN path. If the second MTN path is unavailable, the third communication apparatus transmits the data stream corresponding to the first client by using the first MTN path, to ensure normal transmission of the data stream. In addition, the third communication apparatus may further implement load sharing.

    Method and apparatus for processing low-latency service flow

    公开(公告)号:US11616729B2

    公开(公告)日:2023-03-28

    申请号:US17222201

    申请日:2021-04-05

    发明人: Yuanlong Jiang

    摘要: A method and an apparatus for processing a low-latency service flow, where the method includes that a first forwarding device obtains a low latency identifier corresponding to a first service flow, and obtains a second data packet based on the first data packet and the low latency identifier after determining that a received first data packet belongs to the first service flow, where the second data packet includes the first data packet and the low latency identifier, the low latency identifier instructing a forwarding device that receives the first service flow to forward the first service flow in a low-latency forwarding mode, and the low-latency forwarding mode is a mode in which fast forwarding of the first service flow is implemented under dynamic control, and the first forwarding device sends the second data packet to a second forwarding device in the low-latency forwarding mode.

    Method, apparatus, and system for obtaining network slice

    公开(公告)号:US11533239B2

    公开(公告)日:2022-12-20

    申请号:US17665661

    申请日:2022-02-07

    摘要: This application discloses a method for obtaining a network slice. The method includes: receiving, by a control device, a slice request sent by a user, where the slice request includes an identifier, and the identifier is used to identify isolation information of a slice requested by the user; obtaining, by the control device, a network slice based on the identifier and a resource topology, where the resource topology is used to describe a network topology and isolation information of N elements in the network topology, the N elements include at least one of a node and a link, N is an integer greater than or equal to 1, and the network slice includes a node and a link that are required for implementing the slice.

    Packet transmission method and apparatus

    公开(公告)号:US11252129B2

    公开(公告)日:2022-02-15

    申请号:US16581826

    申请日:2019-09-25

    摘要: An embodiment provides a packet transmission method and apparatus, to resolve a problem that occurs when a packet cannot traverse a NAT device when VTEPs communicate with each other through the NAT device. The method is applied to a VXLAN including a first VTEP, a second VTEP, and a NAT device. The method includes: performing, by the first VTEP, VXLAN encapsulation on a first packet, obtaining a second packet; sending, by the first VTEP, the second packet to the second VTEP through the NAT device; and performing, by the second VTEP, VXLAN decapsulation on the received second packet, to obtain the first packet. The first packet is a packet to be sent by the first VTEP, a destination port number of the second packet is obtained based on a destination IP address of the second packet, and a source port number of the second packet is a preset port number.

    Method for Generating Forwarding Information, Controller, and Service Forwarding Entity

    公开(公告)号:US20190074995A1

    公开(公告)日:2019-03-07

    申请号:US16175104

    申请日:2018-10-30

    摘要: A method for generating forwarding information includes determining, by a controller, a first service forwarding entity (SFE) and a second SFE forwarding a service stream, where the first SFE and the second SFE are on a service function chain corresponding to the service stream, generating, by the controller, first forwarding information for the first SFE and second forwarding information for the second SFE, and sending, by the controller, the first forwarding information to the first SFE and sending the second forwarding information to the second SFE. Hence, the controller generates forwarding information for the SFE such that a service chaining technology can be applied to a service environment in which a large quantity of services and a large quantity of service processing function units exist.

    Method for implementing E-tree service and provider edge device

    公开(公告)号:US09680769B2

    公开(公告)日:2017-06-13

    申请号:US14319306

    申请日:2014-06-30

    发明人: Yuanlong Jiang

    IPC分类号: H04L12/933 H04L12/46

    摘要: The present invention discloses a method for implementing an E-tree service and a provider edge device, and relates to the field of network communications technologies. A local PE device obtains leaf PE attribute information of a peer provider edge PE device; when the leaf PE attribute information of the peer PE device indicates that the peer PE device is a leaf PE device and the local PE device is a leaf PE device, the local PE device forbids a pseudo-wire connection between the local PE device and the peer PE device. The technical solution of the present invention implements effective isolation between leaf nodes supporting an E-Tree service and therefore implements the E-Tree service in a VPLS network.

    Method and apparatus for processing service flow in packet network

    公开(公告)号:US11909659B2

    公开(公告)日:2024-02-20

    申请号:US17528555

    申请日:2021-11-17

    发明人: Yuanlong Jiang

    IPC分类号: H04L47/34 H04L45/50

    CPC分类号: H04L47/34 H04L45/50

    摘要: A method for processing a service flow in a packet network and applied to a network device group including a first network device and a second network device coupled to the first network device includes the first network device: obtaining a first upstream service flow; receiving a second upstream service flow from the second network device; obtaining a third upstream service flow based on a first reference sequence number, a sequence number included in each upstream data packet in the first upstream service flow, and a sequence number included in each upstream data packet in the second upstream service flow, where a sequence number included in any upstream data packet in the third upstream service flow is greater than the first reference sequence number; and sending the third upstream service flow to a next hop node.

    Method and Apparatus for Processing Low-Latency Service Flow

    公开(公告)号:US20190199642A1

    公开(公告)日:2019-06-27

    申请号:US16285913

    申请日:2019-02-26

    发明人: Yuanlong Jiang

    摘要: A method and an apparatus for processing a low-latency service flow, where the method includes that a first forwarding device obtains a low latency identifier corresponding to a first service flow, and obtains a second data packet based on the first data packet and the low latency identifier after determining that a received first data packet belongs to the first service flow, where the second data packet includes the first data packet and the low latency identifier, the low latency identifier instructing a forwarding device that receives the first service flow to forward the first service flow in a low-latency forwarding mode, and the low-latency forwarding mode is a mode in which fast forwarding of the first service flow is implemented under dynamic control, and the first forwarding device sends the second data packet to a second forwarding device in the low-latency forwarding mode.