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1. 发明授权

US11463905B2 Adaptive in-band network telemetry for full network coverage 有权
公开(公告)号：US11463905B2
公开(公告)日：2022-10-04
申请号：US17100656
申请日：2020-11-20
申请人： HUAWEI TECHNOLOGIES CO., LTD.
发明人： Haoyu Song , Tianran Zhou , Min Liu , Zhenbin Li
IPC分类号： H04L29/06 , H04W28/02 , H04L69/22
摘要： A mechanism for adaptively performing in-band network telemetry (INT) by a network controller is disclosed. The mechanism includes receiving one or more congestion indicators from a collector. An adjusted sampling rate is generated. The adjusted sampling rate is a specified rate of insertion of instruction headers for INT and is generated based on the congestion indicators. The adjusted sampling rate is transmitted to a head node, which is configured to perform INT via instruction header insertion into user packets.

2. 发明申请

US20210092061A1 DATA PACKET DETECTION METHOD, DEVICE, AND SYSTEM 有权
公开(公告)号：US20210092061A1
公开(公告)日：2021-03-25
申请号：US17113104
申请日：2020-12-07
申请人： HUAWEI TECHNOLOGIES CO.,LTD.
发明人： Tianran Zhou , Haoyu Song , Zhenbin Li , Yunan Gu
IPC分类号： H04L12/741 , H04L12/733 , H04L12/717 , H04L12/26
摘要： A data packet detection method, a device, and a system are disclosed. The method includes: receiving first control information sent by a controller; receiving a first data packet sent by a previous-hop network device of a first network device, where the first data packet includes first detection information, and the first detection information includes a first detection node identifier, a first sequence number, and first collection information; determining, based on the first collection information, first collected data corresponding to the first collection information, and updating the first detection node identifier; and sending, to a next-hop network device of the first network device, the first data packet carrying the updated first detection information. This implements information telemetry on a data packet on a transmission path.

3. 发明申请

US20230015347A1 SYSTEM AND METHOD FOR FORWARDING PACKETS IN A HIERARCHICAL NETWORK ARCHITECTURE USING VARIABLE LENGTH ADDRESSES 有权
公开(公告)号：US20230015347A1
公开(公告)日：2023-01-19
申请号：US17956661
申请日：2022-09-29
申请人： HUAWEI TECHNOLOGIES CO., LTD.
发明人： Haoyu Song , Yingzhen Qu
IPC分类号： H04L45/74 , H04L45/02 , H04L45/00
摘要： This disclosure relates to transmitting data packets from a source to a destination within a communications network. A data packet is received from the source located in a local sub-network of the network. The data packet includes a first network layer protocol header having a source address containing the local sub-network address of the source, a destination address of the destination, a first field indicating a length of the source address and a second field indicating a length of the destination address. The first network layer protocol header is transformed by modifying the source address and the first field indicating the length of the source address, such that the modifying includes appending to the local sub-network address a prefix of the sub-network to make the source address an address of a higher-level network. The data packet is then forwarded toward the destination in the higher-level network.

4. 发明授权

US11228534B2 Congestion control method, network device, and network interface controller 有权
公开(公告)号：US11228534B2
公开(公告)日：2022-01-18
申请号：US16683730
申请日：2019-11-14
申请人： HUAWEI TECHNOLOGIES CO., LTD.
发明人： Haoyu Song , Zhigang Ji , Yali Zhang , Yinben Xia
IPC分类号： H04L12/807 , H04L12/833 , H04L12/861
摘要： This application provides a congestion control method, a network device, and a network interface controller. In the congestion control method performed by a first intermediate device, the first intermediate device receives a first data packet sent by a sending device, sends the first data packet to a receiving device along a first path, receives a first acknowledgment packet that is sent by the receiving device and that is used for acknowledging the first data packet, and determines a congestion degree of the first path based on a congestion mark in the first acknowledgment packet. The first intermediate device changes a window value and sends the changed first acknowledgment packet to the sending device. According to a solution provided in this application, a speed of transmitting a data packet is adjusted based on a congestion degree of a communication path and a quantity of bytes of the data packet.

5. 发明授权

US11201820B2 Segment routing in MPLS network 有权
公开(公告)号：US11201820B2
公开(公告)日：2021-12-14
申请号：US16940323
申请日：2020-07-27
申请人： Huawei Technologies Co., Ltd.
发明人： Haoyu Song , Zhenbin Li , Tianran Zhou , James N. Guichard , Stewart Frederick Bryant , Andrew G. Malis
IPC分类号： H04L12/723 , H04L29/06
摘要： Described herein are methods and devices (e.g., routers) for performing segment routing over a multiprotocol label switching (MPLS) network. A method can include a router of the MPLS network receiving a packet, and the router modifying the packet by adding a segment routing header (SRH) type MPLS extension header. The SRH type MPLS extension header includes one or more segment identifiers (SIDs) that collectively provide a SID list for use in segment routing. The method further comprises the router copying one of the one or more SIDs in the SRH type MPLS extension header to a top of an MPLS label stack, and the router forwarding the packet as modified to another router of the MPLS network based on the one of the one or more SIDs included in a label stack entry at the top of the MPLS label stack.

6. 发明申请

US20150067249A1 Memory Scheduling Method and Memory Controller 有权
标题翻译：内存调度方法和内存控制器
公开(公告)号：US20150067249A1
公开(公告)日：2015-03-05
申请号：US14538095
申请日：2014-11-11
申请人： Huawei Technologies Co., Ltd.
发明人： Xinyuan Wang , Haoyu Song
IPC分类号： G11C11/406 , G06F13/16
CPC分类号： G11C11/40615 , G06F13/1689
摘要： In a memory scheduling method, a memory controller writes a first group of first row strobe commands (ACTs) into a first memory. The first group of first ACTs includes multiple first ACTs and a periodic interval exists between two adjacent first ACTs written by the memory controller into the first memory. The memory controller writes operation commands that correspond to the first group of first ACTs into the first memory after writing the first group of first ACTs into the first memory. The memory controller writes second ACTs into a second memory in periodic intervals for writing the first group of first ACTs into the first memory and/or in periodic intervals for writing the operation commands that correspond to the first group of first ACTs. The memory controller writes operation commands that correspond to the second ACTs into the second memory.
摘要翻译：在存储器调度方法中，存储器控制器将第一组第一行选通命令（ACT）写入第一存储器。第一组第一ACT包括多个第一ACT，并且在由存储器控制器写入第一存储器的两个相邻的第一ACT之间存在周期性间隔。存储器控制器将第一组第一ACT写入第一存储器之后，将与第一组第一ACT对应的操作命令写入第一存储器。存储器控制器以周期性间隔将第二ACT写入第二存储器，以将第一组第一ACT写入第一存储器和/或以周期性间隔写入与第一组ACT相对应的操作命令。存储器控制器将对应于第二ACT的操作命令写入第二存储器。

7. 发明申请

US20230083671A1 Domain Name System Services for Variable-Length Address Networks 有权
公开(公告)号：US20230083671A1
公开(公告)日：2023-03-16
申请号：US17991247
申请日：2022-11-21
申请人： Huawei Technologies Co., Ltd.
发明人： Yingzhen Qu , Haoyu Song , Michael McBride , James N. Guichard
IPC分类号： H04L61/4511
摘要： A DNS server comprises: a receiver configured to receive a registration request comprising a domain name, a local address, and a scope, the registration request requests registration of the domain name; a processor coupled to the receiver and configured to execute computer instructions that cause the processor to: assign an address to the domain name based on the local address and the scope, and generate a registration response comprising the address; and a transmitter coupled to the processor and configured to transmit the registration response towards an endpoint. The processor may be further configured to cache a correspondence among the domain name, the address, and the scope.

8. 发明申请

US20230017175A1 ADAPTIVE IN-BAND NETWORK TELEMETRY FOR FULL NETWORK COVERAGE 有权
公开(公告)号：US20230017175A1
公开(公告)日：2023-01-19
申请号：US17935578
申请日：2022-09-27
申请人： HUAWEI TECHNOLOGIES CO., LTD.
发明人： Haoyu Song , Tianran Zhou , Min Liu , Zhenbin Li
IPC分类号： H04W28/02 , H04L69/22
摘要： A mechanism for adaptively performing in-band network telemetry (INT) by a network controller is disclosed. The mechanism includes receiving one or more congestion indicators from a collector. An adjusted sampling rate is generated. The adjusted sampling rate is a specified rate of insertion of instruction headers for INT and is generated based on the congestion indicators. The adjusted sampling rate is transmitted to a head node, which is configured to perform INT via instruction header insertion into user packets.

9. 发明申请

US20210203599A1 MPLS EXTENSION HEADERS IN MIXED NETWORKS 有权
公开(公告)号：US20210203599A1
公开(公告)日：2021-07-01
申请号：US17170318
申请日：2021-02-08
申请人： Huawei Technologies Co., Ltd.
发明人： James N. Guichard , Haoyu Song , Loa Andersson
IPC分类号： H04L12/723 , H04L29/06 , H04L12/741
摘要： A mixed Multiprotocol Label Switching (MPLS) network includes both extension header capable (EH capable) nodes and EH non-capable nodes. A first EH capable node receives advertised capabilities of a downstream node. These advertised capabilities indicate whether the downstream node is EH capable. The first EH capable node receives a packet to be transmitted to the downstream node via the MPLS network, and determines whether the packet includes an extension header (EH). The node inserts an EH label into an MPLS label stack of the packet after determining the advertised capabilities of the downstream node indicate that the downstream node is EH capable, and after determining the packet does not include the EH.

10. 发明申请

US20210135986A1 MPLS EXTENSION HEADERS FOR IN-NETWORK SERVICES 有权
公开(公告)号：US20210135986A1
公开(公告)日：2021-05-06
申请号：US17147208
申请日：2021-01-12
申请人： Huawei Technologies Co., Ltd.
发明人： Haoyu Song , Zhenbin Li , Tianran Zhou , James N. Guichard , Stewart Frederick Bryant , Andrew G. Malis
IPC分类号： H04L12/723 , H04L12/761 , H04L29/06
摘要： Described herein are methods and devices (e.g., routers) that add in-network services to a multiprotocol label switching (MPLS) network. A method can include a router of the MPLS network receiving a packet and modifying the packet by adding one or more MPLS extension headers, adding a header of the extension header(s), and adding an indication within an MPLS label stack that one or more MPLS extension headers have been added to the packet. The method can also include the router forwarding the packet as modified to another router of the MPLS network. In certain embodiments, an extension header label (EHL) within a label value field of a label stack entry indicates that one or more MPLS extension headers have been added to the packet. In other embodiments, a forward equivalent class (FEC) indicates that one or more MPLS extension headers follow the MPLS label stack.

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