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公开(公告)号：US20180241698A1
公开(公告)日：2018-08-23
申请号：US15753471
申请日：2016-08-25
发明人： Zhiyu ZHAO
IPC分类号： H04L12/931 , H04L12/937 , H04L12/24 , H04L12/721 , G06F13/38
CPC分类号： H04L49/40 , G06F11/2002 , G06F13/385 , G06F13/4022 , G06F2213/0026 , H04L41/0806 , H04L45/38 , H04L49/253
摘要： A network device may include a first forwarding board, a second forwarding board and an interface board. The interface board may include a control apparatus and a network interface chip. The control apparatus may form a first upstream packet flow which is sent to the first forwarding board via a first I/O bus and a second upstream packet flow which is sent to the second forwarding board via a second I/O bus using data packets received through the network interface chip from the exterior of the network device. The control apparatus may selectively connect one of a first downstream packet flow and a second downstream packet flow to the network interface chip through the network interface bus according to an active/standby state of the first forwarding board and the second forwarding board, wherein the first downstream packet flow is processed by the first forwarding board and received through the first I/O bus and the second downstream packet flow is processed by the second forwarding board and received through the second I/O bus.
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公开(公告)号：US20180159702A1
公开(公告)日：2018-06-07
申请号：US15571717
申请日：2016-06-24
发明人： Yubing Song
IPC分类号： H04L12/46 , H04L12/931 , H04L12/775 , H04L12/705
CPC分类号： H04L12/4666 , H04L12/4633 , H04L45/18 , H04L45/245 , H04L45/583 , H04L45/66 , H04L49/354
摘要： In an example, a method for forwarding packet is applied to a port extender (PE) device within a PE stack system. In a case that the PE device receives a packet from a local ingress port of the PE device, the PE device may determine the local egress port corresponding to the local ingress port by looking up a local forwarding entry according to the local ingress port, and then forward the packet via the local egress port.
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公开(公告)号：US20240243990A1
公开(公告)日：2024-07-18
申请号：US18002835
申请日：2021-06-25
发明人： Jinrong YE
摘要： The present disclosure provides route notifying methods and electronic devices. In an embodiment, a first ASBR in a first AS carries an NLRI as well as a newly-added BIER Path Attribute in a UPDATE message and notifies them to a second AS. BIER information in the autonomous system is exchanged between the ASs in a cross-AS BIER scenario, and BIER route notifying between the ASs in the cross-AS BIER scenario is realized.
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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
发明人： Xiangqing CHANG , Mengxiao CHEN , Zhaoyan LEI , Tao LIN , Hao LI
摘要： 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：US20240214323A1
公开(公告)日：2024-06-27
申请号：US18557364
申请日：2021-07-15
发明人： Zuopin CHENG
IPC分类号： H04L47/56 , H04L47/2483
CPC分类号： H04L47/562 , H04L47/2483
摘要： The examples of the present disclosure provide a packet transmission method and apparatus, which relates to the field of network technology and is applied to the first network device. The method comprises: receiving a packet sent by a second network device; forwarding, after buffering the received packet for a preset time duration, the received packet. The disclosure of the technical solutions provided by the examples of the present disclosure improves the adaptability of the deterministic transmission to the WAN.
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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
发明人： Changwang LIN , Mengxiao CHEN , Hao LI
IPC分类号： H04L45/03 , H04L45/00 , H04L45/52 , H04L45/745
CPC分类号： H04L45/03 , H04L45/34 , H04L45/745 , H04L45/52
摘要： 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：US12015587B2
公开(公告)日：2024-06-18
申请号：US17905155
申请日：2020-02-28
发明人： Jinrong Ye , Haina Zhong , Qing Gong
IPC分类号： H04L61/103 , H04L45/02
CPC分类号： H04L61/103 , H04L45/04
摘要： Provided are methods and apparatuses for updating a route. In the present disclosure, when an access device receives a first host route and a first sequence number sent by a BGP peer of the access device, regardless of the value of the first sequence number, the first host route is used as a route used by the access device to forward data to a target host, and a recorded first ARP entry corresponding to the target host is deleted, so as to trigger the BGP peer of the access device, for example, a convergence device, to withdraw host routes associated with the first ARP entry based on the existing route withdrawal mechanism.
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公开(公告)号：US12003418B2
公开(公告)日：2024-06-04
申请号：US18001518
申请日：2021-06-25
发明人： Yang Wang
IPC分类号： H04L12/00 , H04L45/74 , H04L45/7453 , H04L45/748
CPC分类号： H04L45/748 , H04L45/742 , H04L45/7453
摘要： A method and apparatus for packet matching, a network device, and a medium are disclosed, which includes adding N first data packets into N pipelines and configuring a stage for each pipeline as a root node of a decision tree; calculating a first hash value for a first pipeline in the N pipelines, and asynchronously prefetching a first output interface data corresponding to the first hash value from a memory, calculating a second hash value for a second pipeline in the N pipelines while prefetching the first output interface data from the memory, obtaining the first output interface data from the cache when calculation of the hash value for each pipeline is finished, deleting the first data packet when the first output interface data is characterized as being used to forward the first data packet in the first pipeline and adding a second data packet into the first pipeline.
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公开(公告)号：US20240137317A1
公开(公告)日：2024-04-25
申请号：US18001518
申请日：2021-06-24
发明人： Yang WANG
IPC分类号： H04L45/748 , H04L45/74 , H04L45/7453
CPC分类号： H04L45/748 , H04L45/742 , H04L45/7453
摘要： Examples of the present disclosure provide a method and apparatus for packet matching, a network device, and a medium, which are related to the communication field, comprising: adding N first data packets into N pipelines and configuring a stage for each pipeline as a root node of a decision tree; calculating a first hash value for a first pipeline in the N pipelines, and asynchronously prefetching a first output interface data corresponding to the first hash value from a memory, calculating a second hash value for a second pipeline in the N pipelines while prefetching the first output interface data from the memory, obtaining the first output interface data from the cache when calculation of the hash value for each pipeline in the N pipelines is finished, deleting the first data packet in the first pipeline from the first pipeline when the first output interface data is characterized as being used to forward the first data packet in the first pipeline and adding a second data packet into the first pipeline when receiving the second data packet, which can accelerate the packet matching speed.
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公开(公告)号：US11719757B2
公开(公告)日：2023-08-08
申请号：US17287330
申请日：2019-10-14
发明人： Ping Yang , Chunxi Yan , Muzi Zhou
CPC分类号： G01R31/40 , G01R31/2633 , G06F1/30
摘要： A fault identification apparatus includes a detector and a plug interface connected with the detector, where the plug interface includes a first measuring terminal and a second measuring terminal; when fault identification is performed for a PSU in a communication apparatus under test, the first measuring terminal is connected with a first end of the PSU, and the second measuring terminal is connected with a second end of the PSU; and the detector obtains a voltage value between the first measuring terminal and the second measuring terminal to determines whether a failure occurs to the PSU based on the voltage value.
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