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公开(公告)号：US20250055794A1
公开(公告)日：2025-02-13
申请号：US18715044
申请日：2022-06-28
Applicant: New H3C Technologies Co., Ltd.
Inventor： Hao LI
IPC: H04L45/74 , H04L45/00 , H04L45/741
Abstract: The present disclosure provides packet processing and relates to the technical field of communications. The solution of the present disclosure includes: receiving a first packet sent by a data plane of a network device, wherein the first packet includes a first SID, first encapsulation information, and notification information that includes a first head node address; if there is a first cache entry associated with the first SID locally and a second head node address included in the first cache entry is the same as the first head node address, sending the first SID and the first encapsulation information to the data plane, so that the data plane updates the stored second encapsulation information associated with the first SID to the first encapsulation information, so as to avoid the problem that the subsequent forwarding path of the service packet processed by the SF node is unclear and may be a wrong path.
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公开(公告)号：US20240243989A1
公开(公告)日：2024-07-18
申请号：US18001746
申请日：2021-06-23
Applicant: New H3C Technologies Co., Ltd.
Inventor： Xiangqing CHANG , Mengxiao CHEN , Zhaoyan LEI , Tao LIN , Hao LI
Abstract: A method and apparatus for generating a forwarding path, a network device and a storage medium, related to the technical field of network communications, are provided. The method comprises: obtaining topology information of first network nodes supporting a target path calculation algorithm; performing, using the target path calculation algorithm, path calculation based on the topology information of the first network nodes to generate a first forwarding path; obtaining a second forwarding path from the source node to the tail node when there is a path interruption in the first forwarding path; determining, from the second forwarding path, first network nodes communicated with second network nodes to obtain node pairs; updating a next hop device of the first node in each node pair on the second forwarding path as the second node in the node pair to obtain a forwarding path communicated from the source node to the tail node, the second node is located behind the first node in each node pair in a direction of the second forwarding path. A communicated forwarding path can still be generated in case that logical topology changes.
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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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Patent Agency Ranking
公开(公告)号：US20250030634A1
公开(公告)日：2025-01-23
申请号：US18714687
申请日：2022-06-28
Applicant: New H3C Technologies Co., Ltd.
Inventor： Hao LI
Abstract: The present disclosure provides message sending and relates to the technical field of communications. The solutions of the present disclosure include: receiving a first service message, which comprises a destination address, a first in-situ flow detection option, a segment routing header (SRH) and an original service message, and the SRH comprises an SID list indicating a forwarding path; if the destination address is a locally configured proxy SID, sending a second service message on the forwarding path, and sending the original service message to a service function node; wherein, the second service message comprises a second in-situ flow detection option, which comprises replication flag information for indicating that the second service message is a replication message of the first service message. The in-situ flow detection can be performed on the forwarding path without affecting service chain services.
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公开(公告)号：US20250030629A1
公开(公告)日：2025-01-23
申请号：US18714903
申请日：2022-06-28
Applicant: New H3C Technologies Co., Ltd.
Inventor： Changwang LIN , Hao LI
Abstract: The present disclosure provides message sending, which relates to the technical field of communication. The technical solution provided by the present disclosure includes: receiving a first message; sending a second message, wherein the second message includes a segment routing header SRH and the first message, and wherein the SRH includes a plurality of compressed segment identifier C-SID containers and segment description information, and the segment description information includes a Block length, a C-SID length and a compression type of C-SID carried by each C-SID container, so that a complete segment list can be restored offline.
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公开(公告)号：US20240275712A1
公开(公告)日：2024-08-15
申请号：US18567060
申请日：2021-10-28
Applicant: NEW H3C TECHNOLOGIES CO., LTD.
Inventor： Changwang LIN , Mengxiao CHEN , Hao LI
IPC: H04L45/02 , H04L67/1095 , H04L67/1097
CPC classification number: H04L45/04 , H04L67/1095 , H04L67/1097
Abstract: The present application provides a method and apparatus for synchronizing information between switches. The method includes: acquiring to-be-synchronized target data; sending BGP routes carrying the target data through BGP sessions established between the switch with one or more designated switches, so that the target data is synchronized between the switch and target switches that need to synchronize with the switch.
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公开(公告)号：US20250047522A1
公开(公告)日：2025-02-06
申请号：US18714545
申请日：2022-06-28
Applicant: New H3C Technologies Co., Ltd.
Inventor： Hao LI
IPC: H04L12/46
Abstract: The present disclosure provides packet forwarding and relates to the technical field of communications. The solutions of the present disclosure comprise: receiving a first packet comprising a destination address and a first Segment Routing Header (SRH) comprising a SID list indicating a forwarding path; sending the first packet on the forwarding path if the destination address is a locally instantiated SID and the first SRH includes indicating information used for indicating that the first packet is a detection packet. The present disclosure can avoid the problem that a head node erroneously switches paths.
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公开(公告)号：US20250030630A1
公开(公告)日：2025-01-23
申请号：US18714929
申请日：2022-06-28
Applicant: New H3C Technologies Co., Ltd.
Inventor： Hao LI
IPC: H04L45/00 , H04L45/741
Abstract: The present disclosure provides packet processing and relates to the technical field of communication. The solution of the present disclosure includes: receiving a first packet; forwarding a second packet, the second packet comprises a first segment routing header SRH and the first packet, and the first SRH comprises marking information, and the marking information indicates encapsulation basis of the first SRH. In this way, the intermediate node can accurately acquire the original packet.
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