公开(公告)号：US20130036331A1

公开(公告)日：2013-02-07

申请号：US13647190

申请日：2012-10-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Dacheng ZHANG ,  Yichao LI ,  Dan LIU ,  Qinyuan CHEN ,  Zepeng LIU ,  Bingxue QIU

IPC: G06F11/36

CPC classification number: G06F11/362

Abstract: A debugging method includes: modifying a fault handling function address corresponding to a page attribute fault in an interrupt descriptor table of a system processor to a user-defined fault handling function address; obtaining current information when a designated page attribute fault occurs in a target program; storing the current information into a virtual execution buffer corresponding to a current thread; pushing the current information in the buffer into a stack; determining whether an extended instruction pointer of the target program matches a preset breakpoint address of a faulty page; if the matching succeeds, interacting with a user; otherwise, copy-constructing an instruction, pointed to by the extended instruction pointer of the target program, to the virtual execution buffer corresponding to the current thread; and popping the current information out of the stack, executing the instruction in the buffer, and repeating the determination about whether the address matches the preset breakpoint address.

Abstract translation: 调试方法包括：将系统处理器的中断描述符表中的页属性故障对应的故障处理功能地址修改为用户定义的故障处理功能地址; 在目标程序中发生指定的页面属性故障时获取当前信息; 将当前信息存储到与当前线程对应的虚拟执行缓冲器中; 将缓冲区中的当前信息推送到堆栈中; 确定目标程序的扩展指令指针是否匹配故障页的预设断点地址; 如果匹配成功，则与用户进行交互; 否则，将由目标程序的扩展指令指针指向的指令复制到对应于当前线程的虚拟执行缓冲器; 并将当前信息从堆栈中弹出，在缓冲器中执行指令，并重复关于地址是否匹配预设断点地址的确定。

公开(公告)号：US20170302660A1

公开(公告)日：2017-10-19

申请号：US15639248

申请日：2017-06-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Danping HE ,  Dacheng ZHANG

IPC: H04L29/06

CPC classification number: H04L63/0853 ,  H04L29/06 ,  H04L63/0807 ,  H04L63/083 ,  H04L63/0884 ,  H04L63/108 ,  H04L63/126 ,  H04L63/1441 ,  H04L2463/121 ,  H04L2463/142 ,  H04W12/06 ,  H04W12/1205

Abstract: Embodiments of the present application disclose a forwarding method, a forwarding apparatus, and a forwarder for authentication information in the Internet of Things. The method is applied to a constrained node and includes: receiving authentication information; determining whether the authentication information is received for the first time; and if the authentication information is received not for the first time, forwarding the authentication information; or if the authentication information is received for the first time, determining whether the authentication information is valid authentication information, and if the authentication information is not valid authentication information, discarding the authentication information, or if the authentication information is valid authentication information, verifying the valid authentication information, and forwarding the valid authentication information after the verification succeeds. The embodiments of the present application can reduce resources of the constrained node, and improve performance of the Internet of Things.

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。

公开(公告)号：US20140157367A1

公开(公告)日：2014-06-05

申请号：US14175221

申请日：2014-02-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Dacheng ZHANG

IPC: H04L29/06

CPC classification number: H04L63/08 ,  H04L41/28 ,  H04L43/00 ,  H04L43/10 ,  H04L63/1466

Abstract: A verification method and node for a BFD session relate to the field of communications technologies. The method includes: adding, by an initiating node, a first random number to a first BFD control packet and sending the first BFD control packet to a remote node; obtaining and saving, by the remote node, the first random number in the received first BFD control packet; adding, by the remote node, a second random number to the received first BFD control packet and sending the first BFD control packet to the initiating node; and obtaining and saving, by the initiating node, the second random number in the received second BFD control packet.

Abstract translation: BFD会话的验证方法和节点与通信技术领域有关。 该方法包括：由发起节点将第一随机数加到第一BFD控制报文，并将第一BFD控制报文发送给远端节点; 由所述远程节点获取并保存所接收的第一BFD控制分组中的第一随机数; 由所述远程节点向所接收的第一BFD控制分组添加第二随机数，并将所述第一BFD控制分组发送到所述发起节点; 并且由所述发起节点获取和保存所接收的第二BFD控制分组中的第二随机数。