公开(公告)号：WO2015000386A1

公开(公告)日：2015-01-08

申请号：PCT/CN2014/081042

申请日：2014-06-27

Applicant: HANGZHOU H3C TECHNOLOGIES CO., LTD

Inventor： WANG, Songbo ,  LIN, Tao ,  ZHANG, Yinfei ,  REN, Weichun

IPC: H04L12/46

CPC classification number: H04L49/354 ,  H04L12/462 ,  H04L41/0893 ,  H04L41/12 ,  H04L45/66 ,  H04L45/74 ,  H04L47/82 ,  H04L69/324

Abstract: A SDN controller receives a forwarding request message including a header portion of a layer-2packet. The SDN controller determines whether a source host and a destination host of the layer-2packet are in the same virtual network according to a virtual network table.

Abstract translation: SDN控制器接收包括第二层分组的报头部分的转发请求消息。 SDN控制器根据虚拟网络表确定第二层分组的源主机和目的主机是否在同一个虚拟网络中。

公开(公告)号：WO2016055027A1

公开(公告)日：2016-04-14

申请号：PCT/CN2015/091610

申请日：2015-10-10

Applicant: HANGZHOU H3C TECHNOLOGIES CO., LTD.

Inventor： LIN, Tao ,  WEN, Tao ,  REN, Weichun ,  ZHANG, Yinfei ,  ZHANG, Xilong

IPC: H04L12/741

CPC classification number: H04L45/54 ,  H04L12/6418 ,  H04L45/30 ,  H04L45/56 ,  H04L69/22

Abstract: A forwarding flow table request sent by a host device when the host device fails to find a matching forwarding flow table entry for a data packet to be forwarded is received, when a destination MAC address of the data packet is the global virtual MAC address, a forwarding flow table entry is generated according to the global port table; the forwarding flow table entry includes an operation indication of replacing the destination MAC address of the data packet with the matching MAC address found in the global port table; and the forwarding flow table entry is sent to the host device, so that the host device may forward a data packet matching the forwarding flow table entry.

Abstract translation: 当主机设备找不到要转发的数据包的匹配转发流表条目时，由主机设备发送的转发流表请求，当数据包的目的MAC地址为全局虚拟MAC地址时， 转发流表项根据全局端口表生成; 转发流表项包括用全局端口表中找到的匹配MAC地址替换数据分组的目的MAC地址的操作指示; 并将转发流表项发送到主机设备，使得主机设备可以转发与转发流表项相匹配的数据分组。

公开(公告)号：WO2014131274A1

公开(公告)日：2014-09-04

申请号：PCT/CN2013/082618

申请日：2013-08-30

Applicant: HANGZHOU H3C TECHNOLOGIES CO., LTD.

Inventor： ZHANG, Lianlei ,  LIN, Tao ,  REN, Weichun ,  LIU, Yang ,  WU, Shaobo

IPC: H04L12/741

CPC classification number: H04L45/38 ,  H04L45/42 ,  H04L45/64 ,  H04L45/745 ,  H04L49/254 ,  H04L49/70

Abstract: According to an example, a VEPA switch may receive a message and a determination may be made as to whether a Datapath of the VEPA switch includes a flow table entry for forwarding the message. In response to a determination that the VEPA switch does not include a flow table entry for forwarding the message, the message may be forwarded to a SDN controller through a SDN protocol that is to construct the flow table entry for forwarding the message according to information contained in the message, in which the constructed flow table entry identifies an egress port of the VEPA switch for forwarding the message. The VEPA switch may also obtain the constructed flow table entry from the SDN controller and forward the message via the egress port identified in the obtained flow table entry.

Abstract translation: 根据示例，VEPA交换机可以接收消息，并且可以确定VEPA交换机的数据路径是否包括用于转发消息的流表条目。 响应于VEPA交换机的确定不包括用于转发消息的流表条目，可以通过SDN协议将消息转发到SDN控制器，SDN协议根据包含的信息构建用于转发消息的流表条目 在消息中，其中构造的流表条目标识用于转发消息的VEPA交换机的出口端口。 VEPA交换机还可以从SDN控制器获得构造的流表条目，并通过获取的流表条目中标识的出口端口转发消息。

公开(公告)号：WO2012103771A1

公开(公告)日：2012-08-09

申请号：PCT/CN2011/084459

申请日：2011-12-22

Applicant: HANGZHOU H3C TECHNOLOGIES CO., LTD. ,  WANG, Ju ,  WANG, Hao ,  LIN, Tao

Inventor： WANG, Ju ,  WANG, Hao ,  LIN, Tao

IPC: H04W12/08 ,  H04L29/06

CPC classification number: H04W12/08 ,  H04L63/126

Abstract: A verification method or apparatus applied in a Wireless Local Area Network (WLAN) includes learning an Internet Protocol (IP) address assigned to a station; sending the IP address to a managing device that is managing the access device and receiving, from the managing device, a determination of whether the IP address is used by another station; and verifying a data packet sent by the station by using an IP address that is not used by another station as reported by the managing device.

Abstract translation: 应用于无线局域网（WLAN）的验证方法或装置包括学习分配给站的因特网协议（IP）地址; 将IP地址发送到正在管理接入设备的管理设备，并从管理设备接收该IP地址是否被另一台站使用的确定; 以及通过使用由管理设备报告的另一站不使用的IP地址来验证站发送的数据分组。

公开(公告)号：WO2015043464A1

公开(公告)日：2015-04-02

申请号：PCT/CN2014/087263

申请日：2014-09-24

Applicant: HANGZHOU H3C TECHNOLOGIES CO., LTD.

Inventor： LIN, Tao ,  REN, Weichun ,  ZHANG, Lianlei ,  WU, Shaobo ,  ZHANG, Xianghui

IPC: H04L12/741

CPC classification number: H04L45/38 ,  H04L12/6418

Abstract: A controller of a virtual switch system receives an uplink packet forwarded by a SDN switch hosted on a server from a VM (virtual machine) hosted on the server. The controller determines an outgoing interface from at least two uplink interfaces on the SDN switch respectively corresponding to aggregated member ports of a physical switch by using an aggregation algorithm according to the uplink packet. The controller generates a first flow table entry and sends the first flow table entry to the SDN switch, wherein the first flow table entry is to instruct the SDN switch to forward a received uplink packet to the physical switch through the outgoing interface.

Abstract translation: 虚拟交换机系统的控制器从托管在服务器上的VM（虚拟机）接收由托管在服务器上的SDN交换机转发的上行链路分组。 控制器通过使用根据上行链路分组的聚合算法，从分别对应于物理交换机的聚合成员端口的SDN交换机上的至少两个上行链路接口确定出局接口。 所述控制器生成第一流表条目，并将所述第一流表条目发送到所述SDN交换机，其中所述第一流表条目是指示所述SDN交换机通过所述输出接口将接收到的上行链路分组转发到所述物理交换机。

公开(公告)号：WO2012116616A1

公开(公告)日：2012-09-07

申请号：PCT/CN2012/071559

申请日：2012-02-24

Applicant: HANGZHOU H3C TECHNOLOGIES CO., LTD ,  SUN, Kai ,  LIN, Tao

Inventor： SUN, Kai ,  LIN, Tao

IPC: H04L12/56

CPC classification number: H04L67/1004 ,  H04L61/251 ,  H04L67/1023 ,  H04L69/167

Abstract: A load balancing method by a load balancing device providing a load balancing service to a group of servers. A service access request message sent by a client terminal is received at the load balancing device, wherein a source Internet Protocol address of the request message is an Internet Protocol address of the client terminal of a first protocol version. A server is selected from the group of servers to send the request message. A determination is made as to whether the first protocol version is same as a second protocol version of an IP address of the selected server. If determination is affirmative, the request message is sent to the selected server. Otherwise, network address translation is performed to replace the source Internet Protocol address of the request message with an Internet Protocol address of the second protocol version configured on an interface between the load balancing device and the group of servers, and the request message is sent to the selected server.

Abstract translation: 负载平衡设备的负载平衡方法，为一组服务器提供负载均衡服务。 在负载平衡设备处接收由客户终端发送的服务访问请求消息，其中请求消息的源互联网协议地址是第一协议版本的客户终端的因特网协议地址。 从服务器组中选择一个服务器来发送请求消息。 确定第一协议版本是否与所选服务器的IP地址的第二协议版本相同。 如果确定是肯定的，则请求消息被发送到所选择的服务器。 否则，执行网络地址转换，以在负载平衡设备和服务器组之间的接口上配置的第二协议版本的Internet协议地址替换请求消息的源Internet协议地址，并将请求消息发送到 所选服务器。

公开(公告)号：WO2016127909A1

公开(公告)日：2016-08-18

申请号：PCT/CN2016/073477

申请日：2016-02-04

Applicant: HANGZHOU H3C TECHNOLOGIES CO., LTD.

Inventor： ZHANG, Yinfei ,  LIN, Tao ,  WEN, Tao ,  REN, Weichun ,  ZHANG, Guanghui

IPC: H04L12/46 ,  H04L12/741

CPC classification number: H04L12/4633 ,  H04L2012/4629

Abstract: Examples of the present disclosure may provide a packet forwarding method. A first OVS may receive an original packet, which may be destined for a second VM on a second OVS, from a first VM. The first OVS may add a VxLAN packet header to the original packet at a VxLAN port to generate a VxLAN packet according to VxLAN packet address information in an FT entry, which may be obtained from an SDN controller. The first OVS may send out the VxLAN packet via a tunnel egress port designated by the FT entry.

Abstract translation: 本公开的示例可以提供分组转发方法。 第一OVS可以从第一VM接收可以发往第二OVS上的第二VM的原始分组。 第一个OVS可以在VxLAN端口向原始分组添加VxLAN分组报头，以根据可以从SDN控制器获得的FT条目中的VxLAN分组地址信息生成VxLAN分组。 第一个OVS可以通过FT条目指定的隧道出口端口发送VxLAN数据包。

公开(公告)号：WO2016041521A1

公开(公告)日：2016-03-24

申请号：PCT/CN2015/089946

申请日：2015-09-18

Applicant: HANGZHOU H3C TECHNOLOGIES CO., LTD.

Inventor： DAI, Xinchun ,  ZHANG, Yinfei ,  LIN, Tao ,  REN, Weichun ,  WEN, Tao

IPC: H04L12/46 ,  H04L29/12

CPC classification number: G06F9/4856 ,  G06F9/45558 ,  G06F9/5088 ,  G06F2009/4557 ,  H04L12/4633 ,  H04L67/10 ,  H04L67/2814

Abstract: Examples of the present disclosure provide a method of migrating a virtual machine. In response to receiving information of a newly added port, a first controller within a software defined network may search for a matching destination Internet protocol address within a first neighbor relationship table when an IP address contained in the information of the newly added port is taken as a source IP address. The first controller may send flow tables relating to the matching destination IP address to a destination virtual switching device of a migrated virtual machine, and update flow tables stored in virtual switching devices managed by the first controller. The first controller may send a migration success message including the information of the newly added port to a second controller, to enable the second controller to update flow tables stored in virtual switching devices managed by the second controller.

Abstract translation: 本公开的示例提供了迁移虚拟机的方法。 响应于新添加的端口的接收信息，当将新添加的端口的信息中包含的IP地址作为第一邻居关系表时，软件定义的网络内的第一控制器可以在第一邻居关系表内搜索匹配的目的地因特网协议地址 源IP地址。 第一控制器可以将与匹配目的地IP地址相关的流表发送到迁移的虚拟机的目的地虚拟交换设备，并且更新存储在由第一控制器管理的虚拟交换设备中的流表。 第一控制器可以将包括新添加的端口的信息的迁移成功消息发送到第二控制器，以使第二控制器更新存储在由第二控制器管理的虚拟交换设备中的流表。

公开(公告)号：WO2014206112A1

公开(公告)日：2014-12-31

申请号：PCT/CN2014/073095

申请日：2014-03-10

Applicant: HANGZHOU H3C TECHNOLOGIES CO., LTD.

Inventor： WANG, Songbo ,  LIN, Tao ,  ZHANG, Yinfei

IPC: H04L12/947

CPC classification number: H04L49/70 ,  H04L12/6418 ,  H04L45/745 ,  H04L49/25 ,  H04L61/2038 ,  H04L61/6022 ,  H04L69/22

Abstract: A distributed virtual switch system comprises a controller and multiple servers. Each server is configured with a virtual SDN switch and at least one VM. Each VM is connected with an external physical switch via the SDN switch. The controller obtains interface information of a switch logic interface corresponding to a VM, adds an entry comprising the interface information into a local global interface management table. The interface information includes a global unique identifier of the switch logic interface corresponding to the VM, a switch identifier of an SDN switch corresponding to the switch logic interface, and a local port identifier of the SDN switch corresponding to the switch logic interface. The controller manages each VM connected with each SDN switch according to the local global interface management table.

Abstract translation: 分布式虚拟交换机系统包括控制器和多个服务器。 每个服务器配置有虚拟SDN交换机和至少一个虚拟机。 每个VM通过SDN交换机与外部物理交换机连接。 控制器获取与VM对应的交换机逻辑接口的接口信息，将包含接口信息的条目添加到本地全局接口管理表中。 接口信息包括对应于VM的交换机逻辑接口的全局唯一标识符，对应于交换机逻辑接口的SDN交换机的交换机标识符以及对应于交换机逻辑接口的SDN交换机的本地端口标识符。 控制器根据本地全局接口管理表管理与每个SDN交换机相连的每个虚拟机。

公开(公告)号：WO2011120424A1

公开(公告)日：2011-10-06

申请号：PCT/CN2011/072253

申请日：2011-03-29

Applicant: HANGZHOU H3C TECHNOLOGIES CO., LTD. ,  LIN, Tao ,  LIU, Jianfeng

Inventor： LIN, Tao ,  LIU, Jianfeng

IPC: H04L29/12

CPC classification number: H04L12/2898 ,  H04L29/12226 ,  H04L29/12358 ,  H04L29/12575 ,  H04L61/2015 ,  H04L61/251 ,  H04L61/2592 ,  H04L69/08 ,  H04L69/16 ,  H04L69/161 ,  H04L69/167 ,  H04L69/22

Abstract: Disclosed is a method and apparatus for processing packets in an IPv6 network. A CPE (Customer-Premises Equipment) replaces source address information in an IP packet with external address information after receiving the IP packet from a user terminal, stores a mapping relation between the source address information and the external address information; converts the IP packet into an IPv6 packet, and transmits the IPv6 packet to an NPE (Network-Premises Equipment) via an IPv6 tunnel between the CPE and the NPE; receives a second IP packet from the NPE via the IPv6 tunnel, converts the second IP packet according to destination address information in the second IP packet, replaces the destination address information in the converted second IP packet with the source address information corresponding to the destination address information in the mapping relation, and transmits the second IP packet to the user terminal.

Abstract translation: 公开了一种在IPv6网络中处理分组的方法和装置。 CPE（客户驻地设备）在从用户终端接收到IP分组之后，用IP地址信息替换IP分组中的源地址信息，存储源地址信息和外部地址信息之间的映射关系; 将IP数据包转换为IPv6数据包，并通过CPE与NPE之间的IPv6隧道将IPv6数据包发送到NPE（网络驻地设备）; 通过IPv6隧道从NPE接收第二个IP包，根据第二个IP包中的目的地址信息转换第二个IP包，用转换后的第二个IP包中的目的地址信息替换与目的地址对应的源地址信息 映射关系中的信息，并将第二IP分组发送到用户终端。