公开(公告)号：US12126518B2

公开(公告)日：2024-10-22

申请号：US17981247

申请日：2022-11-04

申请人： Huawei Technologies Co., Ltd.

发明人： Huaimo Chen ,  Zhibo Hu

IPC分类号： H04L45/02 ,  H04L45/50 ,  H04L47/2441 ,  H04L67/56

CPC分类号： H04L45/02 ,  H04L45/04 ,  H04L45/50 ,  H04L47/2441 ,  H04L67/56

摘要： A Proxy Forwarding node configured to advertise Segment Routing (SR) proxy forwarding capability of the Proxy Forwarding node for neighboring nodes of the Proxy Forwarding node using extensions to interior gateway protocol (IGP) for Proxy Forwarding for enabling an ingress node to the SR Traffic Engineering (SR-TE) path to continue to forward the traffic without modifying a segment list of the SR-TE path that includes a node segment identifier (SID) of a failed neighboring node of the Proxy Forwarding node. When the Proxy Forwarding node receives traffic targeting the failed neighboring node, the Proxy Forwarding node performs SR proxy forwarding for the failed neighboring node by forwarding the traffic towards a destination of the traffic in a direction that avoids the failed neighboring node for a period of time after the IGP has converged.

公开(公告)号：US20240340236A1

公开(公告)日：2024-10-10

申请号：US18296399

申请日：2023-04-06

申请人： Cisco Technology, Inc.

发明人： Bharath Vasudevan ,  Christian Schmutzer

IPC分类号： H04L45/50 ,  H04L9/40 ,  H04L12/66 ,  H04L45/00

CPC分类号： H04L45/50 ,  H04L12/66 ,  H04L45/66 ,  H04L63/0272

摘要： Presented herein are techniques that remove the unnecessary provisioning system complexities of manual inter-domain service/circuit stitching by introducing a solution to perform dynamic end-to-end circuit setup in a hybrid networking environment. A method is provided that is performed by a gateway node at a boundary of a first domain and a second domain of a hybrid network, the first domain and the second domain using different types of transport and different types of control planes.

公开(公告)号：US12113706B2

公开(公告)日：2024-10-08

申请号：US17000898

申请日：2020-08-24

申请人： Nokia Solutions and Networks Oy

发明人： Pranjal Kumar Dutta

IPC分类号： H04L45/50 ,  H04L12/18 ,  H04L45/52 ,  H04L45/748

CPC分类号： H04L45/50 ,  H04L12/18 ,  H04L45/52 ,  H04L45/748

摘要： Various example embodiments for supporting stateless multicast in communication networks are presented. Various example embodiments for supporting stateless multicast in communication networks may be configured to support stateless multicast in multi-domain packet distribution networks. Various example embodiments for supporting stateless multicast in communication networks may be configured to support stateless multicast in multi-domain packet distribution networks which may be based on Internet Protocol (IP). Various example embodiments for supporting stateless multicast in a multi-domain packet distribution network may be configured to support multicast of packets based on use of internal multicast packets for multicast communication of the multicast packets within sub-domains of the multi-domain packet distribution network and use of external multicast packets for unicast communication of the multicast packets across or between sub-domains of the multi-domain packet distribution network.

公开(公告)号：US12095664B2

公开(公告)日：2024-09-17

申请号：US17406865

申请日：2021-08-19

申请人： K.Mizra LLC

发明人： Ping Pan ,  Richard D. Gitlin

IPC分类号： H04L29/06 ,  H04L45/00 ,  H04L45/50 ,  H04L45/74 ,  H04L47/24 ,  H04L65/10 ,  H04L69/22

CPC分类号： H04L45/68 ,  H04L45/00 ,  H04L45/38 ,  H04L45/50 ,  H04L45/74 ,  H04L47/24 ,  H04L65/1013 ,  H04L69/22

摘要： A method includes, at a node associated with a multiprotocol label switching system (MPLS) network, identifying information associated with an application flow based on one or more unencapsulated packet headers of the application flow or based on an ingress data stream that includes the application flow. The method further includes, in response to identifying the information, and based on stored data that maps application flows with pseudowires, determining a number of pseudowires corresponding to paths through the MPLS network, where the stored data indicates, for a sending device application, a distributed mapping of the application flow via at least one of the number of pseudowires, and communicating data related to the sending device application via at least one of the number of pseudowires.

公开(公告)号：US20240291748A1

公开(公告)日：2024-08-29

申请号：US18568934

申请日：2022-05-30

申请人： ZTE Corporation

发明人： Benchong XU ,  Zheng ZHANG

IPC分类号： H04L45/16 ,  H04L45/00 ,  H04L45/17 ,  H04L45/50

CPC分类号： H04L45/16 ,  H04L45/17 ,  H04L45/34 ,  H04L45/507

摘要： Embodiments of the present disclosure relate to the technical field of communications, and in particular, to a forwarding method, a forwarding system, an electronic device, and a computer-readable storage medium. The forwarding method includes: acquiring a packet to be forwarded, and detecting whether the packet to be forwarded contains a preset indicator, wherein the preset indicator is used for indicating that the packet to be forwarded has a designated forwarding path; when the packet to be forwarded contains the preset indicator, acquiring information of a protocol header following a Bit Indexed Explicit Replication (BIER) header of the packet to be forwarded, wherein the information of the protocol header is at least used for indicating the designated forwarding path; determining a next hop according to the information of the protocol header; and forwarding the packet to be forwarded according to the next hop.

公开(公告)号：US12058054B2

公开(公告)日：2024-08-06

申请号：US17580831

申请日：2022-01-21

申请人： HUAWEI TECHNOLOGIES CO., LTD.

发明人： Rui Meng ,  Chuang Wang ,  Delei Yu

IPC分类号： H04L47/28 ,  H04L45/50 ,  H04L47/12

CPC分类号： H04L47/28 ,  H04L45/50 ,  H04L47/12

摘要： A packet transmission method and apparatus, and a system. The method includes: after receiving a first packet, a first device determines, based on a condition met by a first number carried in the first packet, a manner of sending the first packet. When the first number of the first packet meets a first condition, a second device determines a second cycle label corresponding to a first cycle label and sends the first packet to a third device in a cycle corresponding to the second cycle label. When the first number of the first packet meets a second condition, the second device determines a third cycle label corresponding to the first cycle label and sends the first packet to the third device in a cycle corresponding to the third cycle label.

公开(公告)号：US20240259305A1

公开(公告)日：2024-08-01

申请号：US18632852

申请日：2024-04-11

申请人： Cisco Technology, Inc.

发明人： Balaji Sundararajan ,  Khalil A. Jabr ,  Anand Oswal ,  Vivek Agarwal ,  Chandramouli Balasubramanian

IPC分类号： H04L45/64 ,  H04L9/40 ,  H04L12/46 ,  H04L45/02 ,  H04L45/50 ,  H04L47/2441

CPC分类号： H04L45/64 ,  H04L12/4641 ,  H04L45/04 ,  H04L45/50 ,  H04L47/2441 ,  H04L63/162

摘要： Systems, methods, and computer-readable media for interconnecting SDWANs through segment routing. A first SDWAN and a second SDWAN of a SDWAN fabric can be identified. A segment routing domain that interconnects the first SDWAN and the second SDWAN can be formed across a WAN underlay of the SDWAN fabric. Data transmission between the first SDWAN and the second SDWAN can be controlled by performing segment routing through the segment routing domain formed between the first SDWAN and the second SDWAN.

公开(公告)号：US20240250906A1

公开(公告)日：2024-07-25

申请号：US18427216

申请日：2024-01-30

申请人： Huawei Technologies Co., Ltd.

发明人： Cheng Li ,  Zhenbin Li ,  Yang Xia ,  Taixu Tian

IPC分类号： H04L45/74 ,  H04L45/00 ,  H04L45/50

CPC分类号： H04L45/74 ,  H04L45/34 ,  H04L45/50 ,  H04L2212/00

摘要： A segment routing device receives a first packet from a first network. A first packet header of the first packet includes a segment list. The segment list includes a plurality of sequentially arranged identifiers. The identifiers include a first-type identifier and a plurality of second-type identifiers. Network devices or links identified by the first-type identifier and the second-type identifier are respectively on the first network and a second network. A type of the first network is different from a type of the second network. The segment routing device encapsulates a second packet header for the first packet to form a second packet. The second packet header includes the plurality of second-type identifiers. The segment routing device sends the second packet to the second network.

公开(公告)号：US12047274B2

公开(公告)日：2024-07-23

申请号：US17615925

申请日：2020-06-03

申请人： ZTE CORPORATION

发明人： Shaofu Peng ,  Feicai Jin

IPC分类号： H04L45/12 ,  H04L45/50

CPC分类号： H04L45/124 ,  H04L45/50

摘要： The present disclosure provides a path computation method, a non-transitory storage medium, and an electronic apparatus. The path computation method includes: sending a path computation request (PCReq) message to a path computation element (PCE), wherein the PCReq message carries a constraint condition ID including at least one of a protocol ID, a multi-topology ID, a network slice ID, an application ID, or a traffic engineering (TE) target ID, and the PCReq message is configured to instruct the PCE to compute a TE path according to the constraint condition ID; and receiving a path computation reply (PCRep) message returned from the PCE, wherein the PCRep message carries the TE path.

公开(公告)号：US12041479B2

公开(公告)日：2024-07-16

申请号：US16851301

申请日：2020-04-17

申请人： VMware LLC

发明人： Jegadish Devadoss ,  Kartik Kamdar ,  Stephen Craig Connors ,  Satheesh Kumar Rajendran ,  Ram Kumar Manoharan

IPC分类号： H04W28/02 ,  H04L43/062 ,  H04L43/0829 ,  H04L43/0852 ,  H04L43/087 ,  H04L43/10 ,  H04L45/302 ,  H04L45/50 ,  H04L47/2408 ,  H04L47/2425 ,  H04L47/2441 ,  H04L47/80 ,  H04L49/20 ,  H04L49/55

CPC分类号： H04W28/0268 ,  H04L43/062 ,  H04L43/0835 ,  H04L43/0858 ,  H04L43/087 ,  H04L43/10 ,  H04L45/302 ,  H04L45/50 ,  H04L47/2408 ,  H04L47/2425 ,  H04L47/2441 ,  H04L47/805 ,  H04L49/205 ,  H04L49/555

摘要： Some embodiments provide a method for quantifying quality of several service classes provided by a link between first and second forwarding nodes in a wide area network (WAN). At a first forwarding node, the method computes and stores first and second path quality metric (PQM) values based on packets sent from the second forwarding node for the first and second service classes. The different service classes in some embodiments are associated with different quality of service (QoS) guarantees that the WAN offers to the packets. In some embodiments, the computed PQM value for each service class quantifies the QoS provided to packets processed through the service class. In some embodiments, the first forwarding node adjusts the first and second PQM values as it processes more packets associated with the first and second service classes. The first forwarding node also periodically forwards to the second forwarding node the first and second PQM values that it maintains for the first and second service classes. In some embodiments, the second forwarding node performs a similar set of operations to compute first and second PQM values for packets sent from the first forwarding node for the first and second service classes, and to provide these PQM values to the first forwarding node periodically.