公开(公告)号：US10033619B2

公开(公告)日：2018-07-24

申请号：US15289249

申请日：2016-10-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Quancai Li

IPC: H04L12/28 ,  H04L12/26 ,  H04L12/715 ,  H04L12/709

Abstract: A data processing method and an OpenFlow network are provided. According to the method, after acquiring an aggregation rule from a controller in the OpenFlow network, a switch in the OpenFlow network performs rule matching on to-be-reported data flows according to the aggregation rule. The switch extracts information about data flows matching the aggregation rule in the to-be-reported data flows. Then the switch packetizes and sends the information to the controller, such that the controller determines, according to the information, a forwarding rule for the data flows matching the aggregation rule in the switch. This method avoids that each to-be-reported data flow is sent to the controller using a Packet_In message respectively, such that control channel bandwidth resources consumed by the Packet_In message are reduced. Utilization of the control channel bandwidth resources is improved.

公开(公告)号：US20170041234A1

公开(公告)日：2017-02-09

申请号：US15299667

申请日：2016-10-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ke Lin ,  Quancai Li

IPC: H04L12/803 ,  H04L12/741

CPC classification number: H04L47/125 ,  H04L45/70 ,  H04L45/745

Abstract: A load balancing implementation method, device, and system, where the method includes determining, by a switch according to a meter entry of each output port, a write value corresponding to a real-time flow rate of each output port when a flow entry used to forward traffic does not exist, sending the write value to a controller such that the controller creates a forwarding flow entry used to forward the traffic according to the write value, receiving, by the switch, the forwarding flow entry, and forwarding the traffic through the target output port. Therefore, the controller can obtain a rate range of a real-time flow rate of an output port of the switch and allocate a forwarding path according to the obtained rate range of the real-time flow rate, and implement a better load balancing.

Abstract translation: 一种负载平衡实现方法，设备和系统，其中所述方法包括：当所述流入口使用时，由交换机根据每个输出端口的计费器条目确定与每个输出端口的实时流量对应的写入值 转发流量不存在，向控制器发送写入值，使得控制器根据写入值创建用于转发流量的转发流条目，由交换机接收转发流项，并转发流量 目标输出端口。 因此，控制器可以获得交换机输出端口实时流量的速率范围，并根据获取的实时流量速率范围分配转发路径，实现更好的负载均衡。

公开(公告)号：US20150334085A1

公开(公告)日：2015-11-19

申请号：US14812063

申请日：2015-07-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Quancai Li ,  Bo Man

IPC: H04L29/12

CPC classification number: H04L61/2015 ,  H04L45/64

Abstract: A method and an apparatus for acquiring an Internet Protocol (IP) address by a Dynamic Host Configuration Protocol, Dynamic Host Configuration Protocol (DHCP) client. The method includes generating, by a controller, a first DHCP discover packet, forwarding, by the controller, the first DHCP discover packet to a DHCP server through a switch so that the DHCP server generates a DHCP offer packet, and sends the DHCP offer packet to the switch, receiving, by the controller, the DHCP offer packet and port information of the switch to communicate with the DHCP server, wherein the DHCP offer packet and the port are reported by the switch, acquiring address information of the DHCP server, and generating, by the controller according to the address information and the port, a forwarding rule for forwarding from the switch to the DHCP server, to assist the DHCP client in acquiring an IP address of the DHCP client.

Abstract translation: 一种用于通过动态主机配置协议（Dynamic Host Configuration Protocol，动态主机配置协议（DHCP））客户端获取因特网协议（IP）地址的方法和装置。 该方法包括由控制器产生第一DHCP发现分组，由控制器通过交换机将第一DHCP发现分组转发给DHCP服务器，使得DHCP服务器生成DHCP提供分组，并发送DHCP提供分组 由控制器接收交换机的DHCP提供报文和端口信息，与DHCP服务器进行通信，其中DHCP报文报文和端口由交换机报告，获取DHCP服务器的地址信息， 由控制器根据地址信息和端口生成从交换机转发到DHCP服务器的转发规则，以协助DHCP客户端获取DHCP客户端的IP地址。