公开(公告)号：US20230231795A1

公开(公告)日：2023-07-20

申请号：US18184899

申请日：2023-03-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ling Xu ,  Jie Dong ,  Guoyi Chen

IPC: H04L45/02 ,  H04L45/64 ,  H04L45/60

CPC classification number: H04L45/02 ,  H04L45/64 ,  H04L45/60

Abstract: A method for synchronizing topology information in a service function chain (SFC) network, where the SFC network includes at least one classifier (CF) and at least one service function forwarder (SFF). The method includes that a first network element in the at least two routing network elements establishes a Border Gateway Protocol (BGP) connection to at least one second network element other than the first network element in the at least two routing network elements, where the first network element is any one of the at least two routing network elements, and the first network element sends a first BGP update message to the at least one second network element, where the first BGP update message includes topology information of the first network element such that the at least one second network element obtains the topology information of the first network element.

公开(公告)号：US20230179515A1

公开(公告)日：2023-06-08

申请号：US18154712

申请日：2023-01-13

Applicant: Futurewei Technologies, Inc.

Inventor： Huaimo Chen

IPC: H04L45/52 ,  H04L45/24 ,  H04L45/60 ,  H04L45/12 ,  H04L45/02

CPC classification number: H04L45/52 ,  H04L45/24 ,  H04L45/60 ,  H04L45/12 ,  H04L45/04

Abstract: A first router in a first AS, the first router comprises: a processor configured to: obtain information about a broadcast link connecting the first router to a second router in a second AS, and generate a link state message comprising the information; and a transmitter coupled to the processor and configured to transmit the link state message to a third router, wherein the third router is in the first AS and is adjacent to the first router. A method comprises: receiving a first link state message from a first router; receiving a second link state message from a second router; receiving a third link state message from a third router; determining which of the first router, the second router, and the third router are ASBRs connected to a broadcast link based on information in the first link state message, the second link state message, and the third link state message.

公开(公告)号：US20230164069A1

公开(公告)日：2023-05-25

申请号：US17914921

申请日：2021-05-07

Applicant: HONOR DEVICE CO., LTD.

Inventor： Youzhang LI ,  Yangyang XIA ,  Cun WANG

IPC: H04L45/60 ,  H04Q1/02

CPC classification number: H04L45/60 ,  H04Q1/11

Abstract: This application provides a router. A shielding portion is formed by extending outward an end of a housing where a rotary shaft seat is disposed. The rotary shaft seat is disposed on a side of the shielding portion facing a back of the housing. An end of the shielding portion away from the housing extends to at least a side of the rotary shaft seat away from the housing, so as to shield a front of the rotary shaft seat. In this way, the rotary shaft seat is invisible in a conventional viewing angle, that is, a viewing angle from a front of the router.

公开(公告)号：US20230136142A1

公开(公告)日：2023-05-04

申请号：US17794526

申请日：2020-01-30

Applicant: Nippon Telegraph and Telephone Corporation

Inventor： Osamu Moriwaki ,  Shunichi Soma ,  Keita Yamaguchi ,  Kenya Suzuki ,  Seiki Kuwabara ,  Tetsuro Inui ,  Shuto Yamamoto ,  Seiji Okamoto ,  Hideki Nishizawa

IPC: H04L45/60 ,  H04Q11/00

Abstract: A high-performance optical and electronic integrated switch capable of effectively extending the transmission distance includes a network processor that controls the functions of the packet switch, a plurality of optical transceivers provided near the processor and having a photoelectric conversion function, and an optical relay switch. A plurality of optical waveguides are connected to the input and output sides of the optical relay switch. Each optical transceiver has a regeneration function that performs optical-electrical conversion on inputted optical signals, then turns back the converted signals, and performs signal conversion on them, and its input side is connected with a routing optical waveguide included in the optical waveguides on the output side of the switch and its output side is connected with a routing optical waveguide included in the optical waveguides on the input side of the switch. The optical waveguides include ones for connecting to an external communication counterpart.

公开(公告)号：US11621914B2

公开(公告)日：2023-04-04

申请号：US17105008

申请日：2020-11-25

Applicant: Juniper Networks, Inc.

Inventor： Dipankar Barman ,  Chin Man Kim

IPC: H04L45/00 ,  H04L45/02 ,  H04L67/1023 ,  H04L45/60 ,  H04L101/663

Abstract: Techniques are disclosed for maintaining processing unit core affinity for fragmented packets. In one example, a service physical interface card (PIC) implementing a service plane of a network device receives fragmented and/or non-fragmented packet data for a traffic flow. The service PIC comprises at least one processing unit comprising multiple cores. A routing engine operating in a control plane of the network device defines one or more core groups comprising a subset of the cores. The routing engine assigns the traffic flow to a core group and a forwarding engine operating in a forwarding plane of the network device forwards the packet data for the traffic flow to the assigned core group. A core of the assigned core group applies a network service to the fragmented and/or non-fragmented packet data for the traffic flow, and the forwarding engine forwards the packet data for the traffic flow toward a destination.

公开(公告)号：US20230030537A1

公开(公告)日：2023-02-02

申请号：US17966099

申请日：2022-10-14

Applicant: Nokia Solutions and Networks Oy

Inventor： Hooman Bidgoli ,  Jayant Kotalwar

IPC: H04L12/18 ,  H04L45/16 ,  H04L45/48 ,  H04L45/50 ,  H04L45/52 ,  H04L45/586 ,  H04L45/60

Abstract: Various example embodiments for supporting multicast are presented. Various example embodiments for supporting multicast are configured to support multicast, on a multicast tree for a multicast group, based on use of penultimate hop popping (PHP) on the multicast tree. Various example embodiments for supporting multicast are configured to support multicast, on a multicast tree for a multicast group, based on use of PHP on the multicast tree where the multicast tree is Point-to-Multipoint (P2MP) Multiprotocol Label Switching (MPLS) tree that is formed based on a TREE-SID multicast solution (although it will be appreciated that PHP may be applied on other types of multicast trees (e.g., other than P2MP MPLS multicast trees), on multicast trees formed based on other multicast solutions (e.g., other than TREE-SID), or the like, as well as various combinations thereof).

公开(公告)号：US20220345401A1

公开(公告)日：2022-10-27

申请号：US17861570

申请日：2022-07-11

Applicant: Evertz Microsystems Ltd.

Inventor： Rakesh Patel

IPC: H04L45/60 ,  H04L49/20 ,  H04L49/101

Abstract: The embodiments described herein provide a router control system for routing data streams from a plurality of input ports to a plurality of output ports using at least one video router. Each router in the system comprises a backplane including a plurality of backplane connections, at least one line card and at least one fabric card. Each line card comprises a plurality of input ports and output ports, each input port and output port being coupled to a respective external signal through the backplane, and a line card cross-point switch having a plurality of input switch terminals and a plurality of output switch terminals, wherein a first plurality of input and output switch terminals are coupled to a respective plurality of input and output ports and a second plurality of input and output switch terminals are coupled to a respective plurality of backplane connections. Each fabric card comprises a fabric card cross-point switch having a plurality of input switch terminals and a plurality of output switch terminals, wherein the plurality of input and output switch terminals are coupled to a respective plurality of backplane connections. For each of the one or more video routers, the one or more configuration signals are configured to instruct selective coupling of one or more input switch terminals of a corresponding cross-point switch of one or more line or fabric card to one or more corresponding output switch terminals, and selectively control the operation of the corresponding one or more line or fabric card.

公开(公告)号：US11483237B2

公开(公告)日：2022-10-25

申请号：US16394561

申请日：2019-04-25

Applicant: Nokia Solutions and Networks OY

Inventor： Pranjal Kumar Dutta

IPC: H04L45/60 ,  H04L45/50 ,  H04L45/74 ,  H04L47/724 ,  H04L47/70 ,  H04L45/16

Abstract: At a router, at least one memory and computer program code stored therein are configured to, with at least one processor, cause the router to: determine source router identification information for a tunnel traversing the router based on a routable source IP address for the tunnel; determine destination router identification information for the tunnel based on a routable destination IP address for the tunnel; program a bit string entry for the tunnel in a Bit Index Forwarding Table (BIFT) for tunnels from a source router to a plurality of destination routers, the BIFT being indexed based on the source router identification information and at least a portion of the destination router identification information; and route packet data received at the router according to the BIFT.

公开(公告)号：US20220303356A1

公开(公告)日：2022-09-22

申请号：US17824540

申请日：2022-05-25

Applicant: Intel Corporation

Inventor： Laurent Cariou ,  Yaron Alpert ,  Bahareh Sadeghi ,  Robert J. Stacey

IPC: H04L67/51 ,  H04L41/0246 ,  H04L45/60 ,  H04L27/26 ,  H04L1/00 ,  H04W52/50 ,  H04W74/08 ,  H04L67/147 ,  H04Q11/04 ,  H04J11/00 ,  H04L5/00 ,  H04L1/16 ,  H04Q11/00 ,  H04L1/18

Abstract: Simultaneous dual band operation (2.4 and 5 GHz) is common in APs on the market today, and tri-band devices are expected in the market soon. Link aggregation can also be applicable to multiple air interfaces in the same band (for instance 2 independent IEEE 802.1 lac/ax air interfaces at 5 GHz on 2 different 80 MHz channels). One exemplary aspect provides technology that enables significantly higher throughput and/or higher reliability for two stations (STAs) or a STA and the access point (AP) when the devices support simultaneous multi-band operation.

公开(公告)号：US11411853B2

公开(公告)日：2022-08-09

申请号：US16818606

申请日：2020-03-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiuli Zheng ,  Xiaohu Xu ,  Nongda Hu ,  Chuang Wang ,  Zhe Chen ,  Bingyang Liu

IPC: H04L12/751 ,  H04L12/721 ,  H04L45/02 ,  H04L45/12 ,  H04L45/60

Abstract: This application discloses a link-state advertisement LSA sending method, an apparatus, and a system, to reduce a quantity of LSA sending times. The method includes: generating, by a first router, a first path table based on level location information of the first router, level location information of a second router, and level location information of at least one third router; sending, by the first router, a first link state update LSU message to the second router; receiving, by the second router, the first link state update LSU message from the first router; updating, by the second router, a link state database LSDB of the second router based on a first LSA; and sending, by the second router, the first LSA to a router corresponding to an identifier in the first path table.