公开(公告)号：US11218575B2

公开(公告)日：2022-01-04

申请号：US16983154

申请日：2020-08-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Delei Yu ,  Shoushou Ren ,  Xiuli Zheng ,  Haiyan Mao ,  Yongtao Zhang ,  Ailiang Ma

IPC: H04L29/06 ,  H04L29/12 ,  H04L29/08

Abstract: A communication method and a communications device, so that both a location and a length of information carried in a data packet header are flexible and variable, the length does not need to be fixed, and the location does not need to be specified. Compared with a conventional protocol, the communication method has stronger flexibility and higher scalability. The method includes: obtaining, by a first device, a data packet, where the data packet includes a first packet header, the first packet header includes first indication information and a value of first packet header information, the first indication information is used to indicate a location of the value of the first packet header information, and the first packet header information is device identification information; and processing, by the first device, the data packet.

公开(公告)号：US10805169B2

公开(公告)日：2020-10-13

申请号：US16234009

申请日：2018-12-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiuli Zheng ,  Jiao Wang

IPC: H04L12/24 ,  H04L12/715 ,  H04L12/751 ,  H04L29/08

Abstract: Embodiments of this application disclose a topology determining method used by an OFC to determine a complete topology structure of a hybrid SDN-IP network. The method includes: receiving, by an OFC, a first message forwarded by a first OFS; determining information about a link from the first TS to the first OFS based on the first message; sending a second message to the first OFS, and instructing the first OFS to forward the second message on the first port; sending a third message to the first OFS; receiving a first response message, where the first response message carries the MIB information of the first TS; and obtaining the information about the link from the first OFS to the first TS and information about a link from a second TS to the first TS based on the MIB information of the first TS.

公开(公告)号：US20170041229A1

公开(公告)日：2017-02-09

申请号：US15333714

申请日：2016-10-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiuli Zheng

IPC: H04L12/741 ,  H04L29/06

CPC classification number: H04L69/16 ,  H04L12/4633 ,  H04L41/083 ,  H04L69/08 ,  H04L69/22

Abstract: Embodiments of the present disclosure provide a method, an apparatus, and a system for communication between an OpenFlow device and an IP network device. According to the embodiments of the present disclosure, an OpenFlow control message is used to carry payload information, a field value that is in a packet header and that is used to determine a protocol type, and identification information of the IP network device that are in a TCP/IP data packet of an IP network control plane protocol message in order to encapsulate the IP network control plane protocol message into the OpenFlow control message for transmission between an OFS and an OFC, such that communication between the OpenFlow device and the IP network device can be implemented, the OFC does not need to process a TCP/IP protocol stack twice, and extra overheads of the OFC are avoided.

Abstract translation: 本公开的实施例提供了一种用于OpenFlow设备和IP网络设备之间的通信的方法，设备和系统。 根据本公开的实施例，OpenFlow控制消息用于携带有效载荷信息，位于分组报头中的用于确定协议类型的字段值，以及IP网络设备的标识信息 IP网络控制平面协议消息的TCP / IP数据分组，以便将IP网络控制平面协议消息封装到OpenFlow控制消息中，以在OFS和OFC之间进行传输，使得OpenFlow设备和IP网络之间的通信 设备可以实现，OFC不需要处理TCP / IP协议栈两次，避免了OFC的额外开销。