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    • 1. 发明申请
    • CONTROLLER AND SWITCH FOR CONTROL PLANE TRAFFIC CONTROL IN SOFTWARE DEFINED NETWORKS
    • 控制器和开关在软件定义网络中的控制平面流量控制
    • WO2017198307A1
    • 2017-11-23
    • PCT/EP2016/061367
    • 2016-05-20
    • HUAWEI TECHNOLOGIES CO., LTD.KHALILI, RaminDESPOTOVIC, ZoranPEREZ, DavidHECKER, Artur
    • KHALILI, RaminDESPOTOVIC, ZoranPEREZ, DavidHECKER, Artur
    • H04L12/707H04L12/717H04L12/721
    • H04L45/22H04L45/38H04L45/42
    • The invention relates to a controller (110) configured to control the forwarding of control data packets within a software defined network (100), wherein the controller (110) can be connected with a data packet forwarding unit (120a-c) via at least two TCP connections (138, 139), wherein the controller (110) comprises: a first path manager (113) and a second path manager (117), wherein the first path manager (113) is configured in response to a request from the data packet forwarding unit (120a-c) to establish a TCP connection (138, 139) between the controller (110) and the data packet forwarding unit (120a-c) and to inform the second path manager (117) about the TCP connection (138, 139) between the controller (110) and the data packet forwarding unit (120a-c), and wherein the second path manager (117) is configured to determine a data packet path for the TCP connection (138, 139) between the controller (110) and the data packet forwarding unit (120a-c) and to provide a respective set of data packet forwarding rules to each data packet forwarding unit (120a-c) located along the data packet path for the TCP connection (138, 139), wherein the sets of data packet forwarding rules define for each TCP connection (138, 139) between the controller (110) and the data packet forwarding unit (120a-c) a unique data packet path between the controller (110) and the data packet forwarding unit (120a-c).
    • 控制器(110)被配置为控制软件定义网络(100)内的控制数据分组的转发,其中控制器(110)可以与数据分组转发单元 (113,139),其中所述控制器(110)包括:第一路径管理器(113)和第二路径管理器(117),其中所述第一路径管理器(113)是通过至少两个TCP连接 ,其响应于来自数据分组转发单元(120a-c)的请求而在控制器(110)与数据分组转发单元(120a-c)之间建立TCP连接(138,139)并且通知第二路径 (117)关于所述控制器(110)和所述数据分组转发单元(120a-c)之间的TCP连接(138,139),并且其中所述第二路径管理器(117)被配置为确定所述控制器 控制器(110)和数据分组转发单元(120a-c)之间的TCP连接(138,139),并提供a (138,139)的数据分组路径上的每个数据分组转发单元(120a-c)的相应数据分组转发规则,其中所述数据分组转发规则的集合针对每个TCP连接 控制器(110)和数据分组转发单元(120a-c)之间的唯一数据分组路径在控制器(110)和数据分组转发单元(120a-c)
    • 2. 发明申请
    • MOBILITY MANAGEMENT IN SDN SYSTEMS
    • SDN系统中的移动性管理
    • WO2017121475A1
    • 2017-07-20
    • PCT/EP2016/050603
    • 2016-01-14
    • HUAWEI TECHNOLOGIES CO., LTD.DESPOTOVIC, ZoranHECKER, ArturMARQUEZAN, ClarissaPEREZ, DavidKHALILI, Ramin
    • DESPOTOVIC, ZoranHECKER, ArturMARQUEZAN, ClarissaPEREZ, DavidKHALILI, Ramin
    • H04L12/24H04W36/00
    • H04L41/0816H04L41/083H04L41/147H04W36/0083
    • A control unit (110) for a software defined networking, SDN, system (10) is provided. The control unit is configured to send configuration data to a forwarding unit (210, 220) for the SDN system, wherein the configuration data relates at least to configuration of a data packet handling task which is to be executed by the forwarding unit. The control unit is further configured to determine an identifier of a mobile entity having established a communication link to a first forwarding unit for the SDN system and to send second configuration data to a second forwarding unit for the SDN system, wherein the second configuration data relates to handling data packets sent by or addressed to the mobile entity. The control unit is configured to send the second configuration data to the second forwarding unit while the mobile entity has the communication link to the first forwarding unit, wherein the second forwarding unit is a forwarding unit serving the mobile entity after termination of the communication link between the mobile entity and the first forwarding unit. Further, a SDN system is provided comprising such a controller and at least two forwarding units. Further, a method for configuring such a SDN system is provided.
    • 提供了用于软件定义网络SDN系统(10)的控制单元(110)。 控制单元被配置为向用于SDN系统的转发单元(210,220)发送配置数据,其中配置数据至少与将由转发单元执行的数据分组处理任务的配置相关。 控制单元进一步被配置为确定已经建立到SDN系统的第一转发单元的通信链路的移动实体的标识符并且将第二配置数据发送到SDN系统的第二转发单元,其中第二配置数据涉及 处理由移动实体发送或寻址到移动实体的数据分组。 所述控制单元被配置为在所述移动实体具有到所述第一转发单元的通信链路的同时将所述第二配置数据发送到所述第二转发单元,其中,所述第二转发单元是在所述通信链路终止之后为所述移动实体服务的转发单元 移动实体和第一转发单元。 此外,提供了包括这种控制器和至少两个转发单元的SDN系统。 此外,提供了用于配置这种SDN系统的方法。
    • 3. 发明申请
    • FORWARDING UNIT AND CONTROLLER UNIT FOR SDN
    • 用于SDN的转发单元和控制器单元
    • WO2017067578A1
    • 2017-04-27
    • PCT/EP2015/074255
    • 2015-10-20
    • HUAWEI TECHNOLOGIES CO., LTD.VAISHNAVI, IshanGUERZONI, RiccardoPEREZ, DavidKHALILI, Ramin
    • VAISHNAVI, IshanGUERZONI, RiccardoPEREZ, DavidKHALILI, Ramin
    • H04L12/24
    • H04L41/083
    • A forwarding unit (210) for a software defined networking, SDN, system (10) is provided, the forwarding unit being configured to forward data packets and comprising a memory module (214) for storing at least one forwarding rule and a forwarding rule managing module (212), wherein the forwarding rule managing module (212) is configured to activate the at least one forwarding rule according to a preset time condition and wherein the preset time condition comprises at least two activation times of the at least one forwarding rule and wherein the forwarding rule managing module (212) is configured to activate the at least one forwarding rule at any one of the at least two activation times. Thus, the activation and deactivation of a forwarding rule is done by the forwarding element and the number of control commands from a control unit to the forwarding unit can be reduced.
    • 提供了用于软件定义联网SDN系统(10)的转发单元(210),所述转发单元被配置为转发数据分组并且包括存储模块(214),用于至少存储 一个转发规则和一个转发规则管理模块,其中,所述转发规则管理模块用于根据预设时间条件激活所述至少一个转发规则,所述预设时间条件包括至少两个激活时间 并且其中所述转发规则管理模块(212)被配置为在所述至少两个激活时间中的任何一个激活时间激活所述至少一个转发规则。 因此,转发规则的激活和去激活由转发元件完成,并且可以减少从控制单元到转发单元的控制命令的数量。
    • 6. 发明申请
    • DYNAMIC FORWARDING RULES IN SDN
    • SDN中的动态转发规则
    • WO2017121471A1
    • 2017-07-20
    • PCT/EP2016/050549
    • 2016-01-13
    • HUAWEI TECHNOLOGIES CO., LTD.WEI, QingPEREZ, David
    • WEI, QingPEREZ, David
    • H04L12/715H04L12/741
    • H04L45/54H04L45/64H04L45/745
    • A forwarding unit (210, 220) for a software defined networking, SDN, system (10) is provided. The forwarding unit comprises a storage module (212) for storing at least one forwarding rule (300), wherein each of the at least one forwarding rule comprises a match field (305) comprising at least one reconfigurable element (320) and an instruction set (330) comprising at least one reconfiguration action. The forwarding unit (210, 220) is configured to apply a forwarding rule of the at least one forwarding rule to a received data packet by comparing the received data packet with the match field of the forwarding rule (300). The forwarding unit is further configured to carry out the at least one reconfiguration action of the forwarding rule if the received data packet does not match one or more of the at least one reconfigurable element of the forwarding rule.
    • 提供了用于软件定义网络SDN系统(10)的转发单元(210,220)。 所述转发单元包括用于存储至少一个转发规则(300)的存储模块(212),其中所述至少一个转发规则中的每一个包括包含至少一个可重配置元素(320)和指令集 (330)包括至少一个重新配置动作。 转发单元(210,220)被配置为通过将接收到的数据分组与所述转发规则(300)的匹配字段进行比较来将所述至少一个转发规则的转发规则应用于接收到的数据分组。 所述转发单元还被配置为如果所接收的数据分组不匹配所述转发规则的所述至少一个可重配置元素中的一个或多个,则执行所述转发规则的所述至少一个重配置动作。