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公开(公告)号：US20240348537A1
公开(公告)日：2024-10-17
申请号：US18692120
申请日：2021-09-15
Applicant: Telefonaktiebolaget LM Ericsson (publ)
Inventor： Wei XU , Shuxia TAI , Huajie GUO , Lei ZHOU
IPC: H04L45/28 , H04L45/023 , H04L45/03
CPC classification number: H04L45/28 , H04L45/023 , H04L45/03
Abstract: Embodiments of the present disclosure provide method and apparatus for Designated Router (DR) seamless switchover. A method performed by a network device comprises detecting a DR failure event due to a failure DR. The method further comprises detecting that the second edge device is unreachable. The method further comprises holding refresh of router-Link State Advertisements (router-LSA) in a link-state database and flooding procedure, when a Backup Designated Router (BDR) has not declared to be a working DR in an Open Shortest Path First (OSPF) network.
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公开(公告)号：US20240205134A1
公开(公告)日：2024-06-20
申请号：US18288158
申请日：2022-02-25
Applicant: New H3C Technologies Co., Ltd.
Inventor： Changwang LIN , Mengxiao CHEN , Hao LI
IPC: H04L45/03 , H04L45/00 , H04L45/52 , H04L45/745
CPC classification number: H04L45/03 , H04L45/34 , H04L45/745 , H04L45/52
Abstract: The examples of the present disclosure provide a method and a device for determining a Segment Identity, and relates to the field of communication. The solution is as follows: receiving a first message and a second message sent by a second device; the first message includes at least one first Block Identity and a boundary address of an address space corresponding to each first Block Identity; the second message includes at least a second Block Identity and a first index value; calculating the first SID by using a boundary address of a first address space corresponding to a same Block and the first index value, where the same Block is a Block characterized by the same Block Identity in at least one first Block Identity and at least one second Block Identity. By applying the technical solution provided by the examples of the present disclosure, the overhead of messages in the process of issuing SIDs is reduced, thus ensuring the performance of devices and the stability of message transmission protocol.
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公开(公告)号：US12218835B2
公开(公告)日：2025-02-04
申请号：US17090621
申请日：2020-11-05
Applicant: Juniper Networks, Inc.
Inventor： Zhaohui Zhang , Jeffrey Haas , Srihari Ramachandra Sangli , Shraddha Hegde
Abstract: Techniques are described by which a routing protocol, such as border gateway protocol (BGP), is extended to control propagation and importation of information using route targets (RTs) specified as bitmasks that encode link administrative group information. For example, a network control device (e.g., controller) is configured to allocate one or more subset of resources (e.g., nodes or links) of an underlay network to each of one or more virtual networks established over the underlay network. The controller generates a bitmask encoded with link administrative group information of the one or more links. The controller then outputs, to a plurality of provider edge (PE) routers that are participating in a respective virtual network, a routing protocol message to advertise the one or more subset of resources, wherein the routing protocol message includes a route target specified as the bitmask.
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公开(公告)号：US20240214297A1
公开(公告)日：2024-06-27
申请号：US18088913
申请日：2022-12-27
Applicant: Nokia Solutions and Networks Oy
Inventor： Pranjal Kumar Dutta
Abstract: Various example embodiments for supporting autonomous path construction and routing in a communication network are presented. Various example embodiments for supporting autonomous path construction and routing in a communication network may be configured to support autonomous path construction based on flooding of path state advertisements within the communication network. Various example embodiments for supporting autonomous path construction and routing in a communication network may be configured to support autonomous path construction based on flooding of path state advertisements including information supporting construction of full sets of loop-free unequal cost paths between all pairs of network elements in the communication network. Various example embodiments for supporting autonomous path construction and routing in a communication network may be configured to support routing based on autonomously constructed paths that include loop-free unequal cost paths between pairs of network elements in the communication network.
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公开(公告)号：US20230336466A1
公开(公告)日：2023-10-19
申请号：US17721679
申请日：2022-04-15
Applicant: Cisco Technology, Inc.
Inventor： Hemamalini Subash , David John Zacks , N Shalini Srinivasan , Rashmi Nikhil Patil , Joel Abraham Obstfeld
IPC: H04L45/00 , H04L45/03 , H04L45/28 , H04L43/065
CPC classification number: H04L45/38 , H04L45/22 , H04L45/03 , H04L45/28 , H04L43/065
Abstract: Systems, methods, and computer-readable media are disclosed for proactively and adaptively rerouting data to a healthier path through network, as part of flow provisioning, based on environmental variables associated with devices in the network. The present technology includes identifying a routing path for forwarding traffic flows in a network, receiving diagnostic data of a routing device on the routing path. The diagnostic data include one or more environmental parameters associated with internal state and surroundings of the routing device. Further, the present technology includes comparing the diagnostic data of the routing device with a predetermined threshold and modifying, prior to a failure of the routing device, the routing path to bypass the routing device for at least a portion of the traffic flows based on the comparison between the diagnostic data of the routing device and the predetermined threshold.
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Patent Agency Ranking
公开(公告)号：US20240414082A1
公开(公告)日：2024-12-12
申请号：US18804327
申请日：2024-08-14
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Wei YU , Guoqi XU , Jie DONG , Zhibo HU , Dapeng CHEN
Abstract: This application discloses a network slice information transmission method and apparatus. For example, a controller performs slice division on a network based on a service requirement and then obtains slice information, and sends the slice information to a first network device in the network by using a path computation element protocol (PCEP) packet, which includes first slice information corresponding to the first network device. After receiving the PCEP packet, the first network device parses the PCEP packet to obtain the first slice information, and further performs network slice configuration based on the first slice information. That is, in this application, the controller delivers the slice information by using the PCEP packet, so that after obtaining the PCEP packet, the first network device can obtain the first slice information corresponding to the first network device in a timely manner and perform network slice configuration without waiting for a configuration command.
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公开(公告)号：US20240314071A1
公开(公告)日：2024-09-19
申请号：US18675665
申请日：2024-05-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Ling WU , Qi HE , Yanqiao JIANG
Abstract: This application provides an address detection method and a related apparatus. The method includes: receiving a first internet protocol (internet protocol, IP) address from a first device, where the first IP address is a to-be-detected IP address of the first device; determining a first information table, where the first information table includes an IP address of one or more devices, and the one or more devices and a first apparatus are at a media access control layer of a same network; determining a second information table based on the first information table; and detecting whether a second IP address that is the same as the first IP address exists in the second information table, where a first media access control address corresponding to the first IP address is different from a second media access control address corresponding to the second IP address.
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公开(公告)号：US20230353479A1
公开(公告)日：2023-11-02
申请号：US18315375
申请日：2023-05-10
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yingzhen Qu , Michael McBride , James N. Guichard
IPC: H04L45/03 , H04L45/12 , H04L45/745
CPC classification number: H04L45/03 , H04L45/12 , H04L45/745
Abstract: An edge routing device at an edge of a network including a memory storing instructions one or more processors. The one or more processors are configured to execute the instructions to determine that an edge routing capability of the edge routing device has been updated, encode an updated edge routing capability into a type length value (TLV) structure of a link state message, and flood the link state message including the TLV structure having the updated edge routing capability to other edge routing devices at the edge of the network.
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公开(公告)号：US20240372798A1
公开(公告)日：2024-11-07
申请号：US18647356
申请日：2024-04-26
Applicant: CenturyLink Intellectual Property LLC
Inventor： Dean Ballew , John R.B. Woodworth
Abstract: In a network system, network switching devices such as routers may store routes to various networks. The system may on occasion be reconfigured, e.g., as new network switching devices are brought on line, or as servers are moved to new locations. Such reconfiguring may involve the storing of new routes in a network switching device, or the deletion of routes stored in a network switching device. As such, systems and methods for cloaking routes are provided.
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公开(公告)号：US20240250897A1
公开(公告)日：2024-07-25
申请号：US18294848
申请日：2022-08-05
Applicant: Rockport Networks Inc.
Inventor： Dan OPREA
Abstract: Signaling link or node failure in a direct interconnect network may be facilitated by recording paths between the various nodes in the network in a lookup table. whereby the paths are represented by a sequence of exit port numbers for nodes along with a terminator marker indicating the end of the path and thus the destination node. Each path in the lookup table may also be associated with a status indicator. As packets are broken down into flits and sent over the network. failures in links or nodes may be detected. Once a failure is detected, a path failure flit is sent back through the path in reverse with path information to notify the source node of the failure. Once notified of a link or node failure. the associated path is updated to reflect its unavailability.
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