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公开(公告)号：US20160105362A1
公开(公告)日：2016-04-14
申请号：US14971985
申请日：2015-12-16
Applicant: Huawei Technologies Co., Ltd.
IPC: H04L12/741 , H04L12/46 , H04L12/707
CPC classification number: H04L45/745 , H04L12/4633 , H04L45/22
Abstract: The present application provides a packet sending method and a network device. The packet sending method includes: receiving, by a network device, a first data packet; and if a MAC entry matching a destination MAC address of the first data packet is not found in a media access control MAC address table of the network device, sending, by the network device, the first data packet according to a forwarding behavior in a MAC default entry of the MAC address table. When the MAC entry matching the destination MAC address of the first data packet is not found, the network device does not need to flood the first data packet on all interfaces, but directly sends the first data packet according to the MAC default entry in the own MAC address table, thereby reducing a need for MAC address capacity in the network device, and not increasing unnecessary network traffic.
Abstract translation: 本申请提供了分组发送方法和网络设备。 分组发送方法包括：由网络设备接收第一数据分组; 并且如果在所述网络设备的媒体访问控制MAC地址表中没有找到与所述第一数据分组的目的地MAC地址相匹配的MAC表项，则由所述网络设备根据MAC中的转发行为发送所述第一数据分组 MAC地址表的默认条目。 当没有找到与第一个数据包的目的地MAC地址匹配的MAC表项时，网络设备不需要在所有接口上泛洪第一个数据包，而是根据自己的MAC默认条目直接发送第一个数据包 MAC地址表，从而减少对网络设备中MAC地址容量的需求，而不会增加不必要的网络流量。
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公开(公告)号：US20180367438A9
公开(公告)日：2018-12-20
申请号：US15866305
申请日：2018-01-09
Applicant: Huawei Technologies Co., Ltd.
Inventor： Qiandeng LIANG , Xiaohu XU , Qin WU
IPC: H04L12/751 , H04L12/741 , H04L12/723 , H04L12/703 , H04L12/26
CPC classification number: H04L45/02 , H04L43/0811 , H04L43/10 , H04L43/50 , H04L45/24 , H04L45/28 , H04L45/306 , H04L45/50 , H04L45/745
Abstract: Embodiments of this application provide a method for obtaining path information and an apparatus, relate to the communications field, and can accurately obtain a forwarding path for detecting a service packet. A service packet is obtained, where the service packet is a target service packet or an updated target service packet, the target service packet is a service packet that matches a flow rule, and the flow rules used to obtain the service packet that matches the flow rule; an ingress interface information field and/or an egress interface information field is/are generated according to a path detection tag on an ingress interface and/or an egress interface through which the service packet passes. The method is used to obtain path information of the service packet.
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3.发明申请METHOD FOR PROCESSING HOST ROUTE IN VIRTUAL SUBNET, RELATED DEVICE, AND COMMUNICATIONS SYSTEM 审中-公开在虚拟子网中处理主机路由的方法，相关设备和通信系统公开(公告)号：US20160373356A1
公开(公告)日：2016-12-22
申请号：US15242087
申请日：2016-08-19
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xiaohu XU , Dacheng ZHANG
IPC: H04L12/28 , H04L12/741 , H04L12/713 , H04L12/721
CPC classification number: H04L45/741 , H04L45/04 , H04L45/18 , H04L45/586 , H04L45/66 , H04L45/745
Abstract: The present disclosure discloses a method for processing a host route in a virtual subnet, a related device and a communications system. The method includes: receiving, by a first provider edge device, a packet for address resolution, where a virtual subnet site in which the first provider edge device is located further includes at least one second provider edge device; determining, by the first provider edge device, whether a source MAC address carried in the packet is a virtual MAC address; and when it is determined that the source MAC address is a virtual MAC address, skipping performing at least one of the following operations: saving a local CE host routing table entry corresponding to a source IP address carried in the packet, or distributing, in the virtual subnet based on a routing protocol of a layer 3 VPN, a local CE host route corresponding to the IP address.
Abstract translation: 本公开公开了一种用于处理虚拟子网中的主机路由，相关设备和通信系统的方法。 该方法包括：由第一提供商边缘设备接收用于地址解析的分组，其中第一提供商边缘设备所在的虚拟子网站点还包括至少一个第二提供商边缘设备; 由所述第一提供商边缘设备确定所述分组中承载的源MAC地址是否为虚拟MAC地址; 并且当确定源MAC地址是虚拟MAC地址时，跳过执行以下操作中的至少一个：保存与分组中携带的源IP地址对应的本地CE主机路由表条目，或者在 基于第3层VPN的路由协议的虚拟子网，与该IP地址对应的本地CE主机路由。
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公开(公告)号：US20210044520A1
公开(公告)日：2021-02-11
申请号：US16998997
申请日：2020-08-20
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xiaohu XU
IPC: H04L12/723 , H04L12/721 , H04L12/46 , H04L12/741
Abstract: A method and an apparatus for forwarding an MPLS data packet are provided, which are used in an environment of hybrid networking of an SR network and a non-SR network. The method includes: when obtaining a to-be-sent MPLS data packet, a first SR router in an SR network determines whether a next-hop router supports an SR characteristic; the first SR router encapsulates the MPLS data packet into an IP tunnel when determining that the next-hop router does not support the SR characteristic, and sends an encapsulated MPLS data packet to the next-hop router to enable the encapsulated MPLS data packet to be forwarded, based on an IP routing table, to a second SR router. According to the application, correct forwarding of an MPLS data packet is completed in an environment of hybrid networking of an SR router and a non-SR router.
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公开(公告)号：US20190124498A1
公开(公告)日：2019-04-25
申请号：US16221377
申请日：2018-12-14
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xiuli ZHENG , Xiaohu XU , Jiao WANG
Abstract: The present application discloses a service data packet encapsulation method and apparatus. The method includes at least: obtaining, by a source communications device, a mobility support parameter of a current service, where the mobility support parameter is used to indicate whether a corresponding service requires mobility support, and the source communications device includes at least an ID identifier layer and a locator layer; determining, by the source communications device based on the mobility support parameter of the current service, whether the current service requires mobility support; and obtaining, by the source communications device, a source locator of the source communications device and a destination locator of a destination communications device when determining that the current service does not require mobility support, and performing, by using the source locator and the destination locator, locator layer encapsulation on a data packet that needs to be sent by the current service.
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Patent Agency Ranking
公开(公告)号：US20160164779A1
公开(公告)日：2016-06-09
申请号：US15044779
申请日：2016-02-16
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xiaohu XU
IPC: H04L12/723 , H04L12/46 , H04L12/741
CPC classification number: H04L45/50 , H04L12/4633 , H04L45/38 , H04L45/745
Abstract: The application discloses a method and an apparatus for forwarding an MPLS data packet, which are used in an environment of hybrid networking of an SR network and a non-SR network. The method is as follows: when obtaining a to-be-sent MPLS data packet, a first SR router in an SR network determines whether a next-hop router supports an SR characteristic; the first SR router encapsulates the MPLS data packet into an IP tunnel when determining that the next-hop router does not support the SR characteristic, and sends an encapsulated MPLS data packet to the next-hop router to enable the encapsulated MPLS data packet to be forwarded, based on an IP routing table, to a second SR router. In this way, correct forwarding of an MPLS data packet is completed in an environment of hybrid networking of an SR router and a non-SR router.
Abstract translation: 本申请公开了一种用于转发MPLS数据分组的方法和装置，其用于SR网络和非SR网络的混合组网环境中。 方法如下：当获取要发送的MPLS数据包时，SR网络中的第一个SR路由器确定下一跳路由器是否支持SR特性; 当确定下一跳路由器不支持SR特性时，第一个SR路由器将MPLS数据包封装到IP隧道中，并将封装的MPLS数据包发送到下一跳路由器，以使封装的MPLS数据包成为 基于IP路由表转发到第二SR路由器。 以这种方式，在SR路由器和非SR路由器的混合组网环境中完成MPLS数据包的正确转发。
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公开(公告)号：US20130230049A1
公开(公告)日：2013-09-05
申请号：US13772899
申请日：2013-02-21
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
IPC: H04L12/56
CPC classification number: H04L45/745 , H04L12/4633 , H04L45/22
Abstract: The present invention provides a packet sending method and a network device. The packet sending method includes: receiving, by a network device, a first data packet; and if a MAC entry matching a destination MAC address of the first data packet is not found in a media access control MAC address table of the network device, sending, by the network device, the first data packet according to a forwarding behavior in a MAC default entry of the MAC address table. When the MAC entry matching the destination MAC address of the first data packet is not found, the network device does not need to flood the first data packet on all interfaces, but directly sends the first data packet according to the MAC default entry in the own MAC address table, thereby reducing a need for MAC address capacity in the network device, and not increasing unnecessary network traffic.
Abstract translation: 本发明提供一种分组发送方法和网络设备。 分组发送方法包括：由网络设备接收第一数据分组; 并且如果在所述网络设备的媒体访问控制MAC地址表中没有找到与所述第一数据分组的目的地MAC地址相匹配的MAC表项，则由所述网络设备根据MAC中的转发行为发送所述第一数据分组 MAC地址表的默认条目。 当没有找到与第一个数据包的目的地MAC地址匹配的MAC表项时，网络设备不需要在所有接口上泛洪第一个数据包，而是根据自己的MAC默认条目直接发送第一个数据包 MAC地址表，从而减少对网络设备中MAC地址容量的需求，而不会增加不必要的网络流量。
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公开(公告)号：US20190306771A1
公开(公告)日：2019-10-03
申请号：US16442968
申请日：2019-06-17
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xiuli ZHENG , Xiaohu XU
Abstract: Embodiments of the present disclosure disclose a handover method and an apparatus, so as to reduce a handover delay in a process of handing over an MN from a previous access network to a new access network. The method includes: sending, by the MN, first instruction information to a NAR by using a PAR, where the first instruction information is used to instruct the NAR to construct a care-of test initialization message and send the care-of test initialization message to a CN, and the care-of test initialization message includes an NCoA of the MN and is used to request a care-of keygen token from the CN based on the NCoA; handing over the MN from the PAR to the NAR; receiving, by the MN, the care-of keygen token sent by the NAR from the CN; and binding the MN with the CN based on the care-of keygen token.
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公开(公告)号：US20190222513A1
公开(公告)日：2019-07-18
申请号：US16360965
申请日：2019-03-21
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xiaohu XU
IPC: H04L12/723 , H04L12/741 , H04L12/721 , H04L12/46
CPC classification number: H04L45/50 , H04L12/4633 , H04L45/38 , H04L45/745
Abstract: The application discloses a method and an apparatus for forwarding an MPLS data packet, which are used in an environment of hybrid networking of an SR network and a non-SR network. The method is as follows: when obtaining a to-be-sent MPLS data packet, a first SR router in an SR network determines whether a next-hop router supports an SR characteristic; the first SR router encapsulates the MPLS data packet into an IP tunnel when determining that the next-hop router does not support the SR characteristic, and sends an encapsulated MPLS data packet to the next-hop router to enable the encapsulated MPLS data packet to be forwarded, based on an IP routing table, to a second SR router. In this way, correct forwarding of an MPLS data packet is completed in an environment of hybrid networking of an SR router and a non-SR router.
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公开(公告)号：US20180159759A1
公开(公告)日：2018-06-07
申请号：US15866305
申请日：2018-01-09
Applicant: Huawei Technologies Co., Ltd.
Inventor： Qiandeng LIANG , Xiaohu XU , Qin WU
IPC: H04L12/751 , H04L12/741 , H04L12/723 , H04L12/703 , H04L12/26
Abstract: Embodiments of this application provide a method for obtaining path information and an apparatus, relate to the communications field, and can accurately obtain a forwarding path for detecting a service packet. A service packet is obtained, where the service packet is a target service packet or an updated target service packet, the target service packet is a service packet that matches a flow rule, and the flow rules used to obtain the service packet that matches the flow rule; an ingress interface information field and/or an egress interface information field is/are generated according to a path detection tag on an ingress interface and/or an egress interface through which the service packet passes. The method is used to obtain path information of the service packet.
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