公开(公告)号：US20160191406A1

公开(公告)日：2016-06-30

申请号：US14909199

申请日：2014-04-15

Applicant: ZTE CORPORATION

Inventor： Min XIAO ,  Bo WU ,  Junhui ZHANG

IPC: H04L12/863 ,  H04L12/741 ,  H04L12/851 ,  H04L12/721

CPC classification number: H04L47/622 ,  H04L12/6418 ,  H04L45/38 ,  H04L45/745 ,  H04L47/2441

Abstract: Provided are a method and device for implementing QoS in an OpenFlow network. The method includes that: for a packet entering an OpenFlow switch, when a flow table is successfully matched, an instruction which is used for calling a scheduler and adding the packet into a specified queue in the scheduler is executed; and under the triggering of the instruction, queue scheduling is managed by using the scheduler. By using the technical means provided by the disclosure, the technical problem in related art that the OpenFlow switch cannot implement Hierarchical QoS (HQoS) is solved, so that the OpenFlow switch may implement both single-layer QoS and HQoS.

Abstract translation: 提供了一种在OpenFlow网络中实现QoS的方法和设备。 该方法包括：对于进入OpenFlow交换机的分组，当流表成功匹配时，执行用于调用调度器并将分组添加到调度器中的指定队列中的指令; 并且在指令的触发下，通过使用调度器来管理队列调度。 通过使用本公开提供的技术手段，解决了OpenFlow交换机不能实现分层QoS（HQoS）的相关技术问题，从而OpenFlow交换机可以实现单层QoS和HQoS。

公开(公告)号：US20160315847A1

公开(公告)日：2016-10-27

申请号：US15102737

申请日：2014-06-16

Applicant: ZTE CORPORATION

Inventor： Junhui ZHANG ,  Yanjie ZHAO ,  Zhui GUO

IPC: H04L12/733 ,  H04L12/771

CPC classification number: H04L45/122 ,  H04L12/6418 ,  H04L41/0806 ,  H04L45/12 ,  H04L45/124 ,  H04L45/24 ,  H04L45/34 ,  H04L45/50 ,  H04L45/56

Abstract: The present disclosure discloses a method and device for calculating a network path. Wherein, the method includes that: a network control node calculates a forwarding path from a source node to a destination node according to capability information of a forwarding node and a constraint condition. By the method, correctness of calculating the SDN path and network applicability may be improved.

Abstract translation: 本公开公开了一种用于计算网络路径的方法和装置。 其中，所述方法包括：网络控制节点根据转发节点的能力信息和约束条件，计算从源节点到目的节点的转发路径。 通过该方法，可以提高计算SDN路径的正确性和网络适用性。

公开(公告)号：US20160173267A1

公开(公告)日：2016-06-16

申请号：US14907561

申请日：2014-05-23

Applicant: ZTE CORPORATION

Inventor： Junhui ZHANG

IPC: H04L7/00

CPC classification number: H04L7/0008 ,  H04J3/0667 ,  H04L41/0806 ,  H04L43/0864 ,  H04L43/106 ,  H04L69/28 ,  H04M15/00

Abstract: A method and device for processing time synchronization are provided. The method includes that: an instruction set of OpenFlow protocol is extended, wherein the extended instruction set is used to implement 1588-protocol-based time synchronization, and a FlowTable configuration message is sent to time synchronization equipment, wherein the FlowTable configuration message includes the extended instruction set, and the time synchronization equipment implements time synchronization processing according to the extended instruction set. By the present invention, the problem that an OpenFlow protocol in the related technology may not implement precision time synchronization is solved, and effects of enabling the OpenFlow protocol to support precision time synchronization and expanding application fields of the OpenFlow protocol are further achieved.

Abstract translation: 提供了一种用于处理时间同步的方法和装置。 该方法包括：扩展OpenFlow协议的指令集，其中扩展指令集用于实现基于1588协议的时间同步，并且将FlowTable配置消息发送到时间同步设备，其中，FlowTable配置消息包括 扩展指令集，时间同步设备根据扩展指令集实现时间同步处理。 通过本发明，解决了相关技术中的OpenFlow协议可能无法实现精确时间同步的问题，进一步实现了使OpenFlow协议支持OpenFlow协议的精确时间同步和扩展应用领域的效果。

公开(公告)号：US20180131459A1

公开(公告)日：2018-05-10

申请号：US15311192

申请日：2014-09-12

Applicant: ZTE CORPORATION

Inventor： Junhui ZHANG ,  Li HE ,  Bin WANG ,  Lin WEN ,  Hongguang ZHAO

IPC: H04J3/06

CPC classification number: H04J3/0641 ,  H04J3/0679 ,  H04J3/12 ,  H04J3/14 ,  H04L41/12

Abstract: The present document discloses a synchronization method, herein the method includes a controller determining synchronization link topology information according to physical link topology information of the synchronous network and synchronization information of a synchronous node in the synchronous network; the controller generating a synchronization rule of the synchronous node according to the synchronization link topology information; and the controller transmitting the synchronization rule and/or a request message to the synchronous node in the synchronous network according to the synchronization link topology information. The present document further discloses a controller, a synchronous node, a synchronous network, and a storage medium.

公开(公告)号：US20160013876A1

公开(公告)日：2016-01-14

申请号：US14758619

申请日：2013-12-12

Applicant: ZTE CORPORATION

Inventor： Junhui ZHANG ,  Dongjia LIU ,  Li HE ,  Liang XIA ,  Bin WANG ,  Hongguang ZHAO

IPC: H04J3/06

CPC classification number: H04J3/0667 ,  H04J3/0641

Abstract: Disclosed are a time synchronization method and system. The method comprises: an NE1 and the upstream nodes of the NE1 are classified into the first level, and the downstream nodes of the NE1 are classified into the second level, where the first level priority of the first level is higher than the second level priority of the second level; an NE3 connected to the NE1 through a PTP synchronization link in the downstream node receives a first device priority of the NE1 and the first level priority from the NE1; and after the NE3 receives the second device priority of an NE2 and the second level priority sent by the NE2 in the downstream nodes which is connected to the NE1 through the 1PPS+TOD synchronization link, determines that a clock parameter of the NE1 is optimal, and synchronizes the local clock to the NE1.

Abstract translation: 公开了一种时间同步方法和系统。 该方法包括：NE1和NE1的上游节点分为第一级，NE1的下游节点分为第一级，其中第一级的第一级优先级高于第二级优先级 的二级; 通过下游节点的PTP同步链路连接到NE1的NE3从NE1接收到NE1的第一设备优先级和第一级优先级; 在NE3接收到NE2的第二设备优先级和NE2在通过1PPS + TOD同步链路连接到NE1的下游节点发送的第二级优先级后，确定NE1的时钟参数为最佳， 并将本地时钟同步到NE1。

公开(公告)号：US20180337827A1

公开(公告)日：2018-11-22

申请号：US15552497

申请日：2016-03-28

Applicant: ZTE CORPORATION

Inventor： Min XIAO ,  Yu WANG ,  Junhui ZHANG ,  Bo WU

IPC: H04L12/24 ,  H04L12/851 ,  H04L29/06 ,  H04L12/46

CPC classification number: H04L41/0893 ,  H04L12/4641 ,  H04L29/08 ,  H04L41/0853 ,  H04L41/16 ,  H04L47/2425 ,  H04L69/18

Abstract: A method and apparatus for reporting a feature of an OpenFlow switch are provided. The method includes: when the OpenFlow switch learns that an OpenFlow controller needs to query for port information, reporting port group identifiers of port groups, to which each port of the OpenFlow switch or each port to be queried by the OpenFlow controller belongs, to the OpenFlow controller, herein the port groups are obtained by grouping ports with different features in the OpenFlow switch based on one or more feature types, and each of the port groups has a port group identifier.