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1. 发明申请

WO2016027221A1 A METHOD AND SYSTEM TO DYNAMICALLY COLLECT STATISTICS OF TRAFFIC FLOWS IN A SOFTWARE-DEFINED NETWORKING (SDN) SYSTEM 审中-公开
标题翻译：一种动态收集软件定义网络（SDN）系统中交通流量统计的方法和系统
公开(公告)号：WO2016027221A1
公开(公告)日：2016-02-25
申请号：PCT/IB2015/056259
申请日：2015-08-18
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： ZHANG, Ying
IPC分类号： H04L12/26
CPC分类号： H04L67/1029 , H04L29/08153 , H04L43/026 , H04L43/0811 , H04L43/16 , Y02D50/30
摘要： Methods implemented in an electronic device are disclosed for dynamically collecting traffic flow in a SDN system. For each of a plurality of sets of traffic flows, the method causes a monitor to be configured to collect traffic statistics. The monitors are instructed to collect traffic statistics, and the traffic statistics are received. For each monitor, the method determines if the received traffic statistics are within a set of acceptable limits or not, wherein the set of acceptable limits includes one or more of an upper bound and a lower bound. For each of the sets of traffic flows of which the received traffic statistics were determined outside of the acceptable limits, the method causes a change of increase or decrease of collection of the traffic statistics of the traffic flows.
摘要翻译：公开了一种在电子设备中实现的方法，用于动态收集SDN系统中的业务流。对于多组流量流中的每一个，该方法使得监视器被配置为收集流量统计。指示监视器收集流量统计信息，并接收流量统计信息。对于每个监视器，该方法确定接收到的流量统计是否在一组可接受的限度内，其中可接受限度的集合包括上限和下限中的一个或多个。对于接收到的流量统计信息在可接受限制之外确定的流量集合中的每一组，该方法导致业务流量流量统计的收集增加或减少。

2. 发明申请

WO2015155616A1 A METHOD AND SYSTEM FOR NETWORK FUNCTION PLACEMENT 审中-公开
标题翻译：一种用于网络功能放置的方法和系统
公开(公告)号：WO2015155616A1
公开(公告)日：2015-10-15
申请号：PCT/IB2015/051999
申请日：2015-03-18
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： XIA, Ming , SHIRAZIPOUR, Meral , ZHANG, Ying
IPC分类号： H04L12/24 , G06F9/50
CPC分类号： H04L47/782 , G06F9/50 , H04L41/0806 , H04L41/0896 , H04L41/5041 , H04L47/748 , H04L47/822
摘要： A method implemented for network function placement is disclosed. The method optimizes network function placement for each traffic flow, to minimize the overall inter-pod traffic volume. For each traffic flow going through a data center, the method initiates a pod list. The network functions of the traffic flow is sorted in a descending order by resource demanded. Then one network function is selected one at a time according to the descending order. For each network function, the pods in the pod list is sorted in an ascending order by resource available in each pod. The method selects a first pod for the network function when possible. When no pod in the pod list has enough resource for the network function, the method adds a pod with the most available resource from a pod pool to the pod list, and selects the added pod for the network function.
摘要翻译：公开了一种实现网络功能放置的方法。该方法优化每个流量的网络功能布局，以最大限度地减少整个荚间流量。对于通过数据中心的每个流量，该方法启动pod列表。业务流的网络功能按照所需资源的降序排序。然后根据降序一次选择一个网络功能。对于每个网络功能，pod列表中的pod按照每个pod中可用资源的升序进行排序。该方法尽可能选择网络功能的第一个pod。当pod列表中的pod没有足够的网络功能资源时，该方法将具有从pod pool的最多可用资源的pod添加到pod列表，并选择添加的pod作为网络功能。

3. 发明申请

WO2015107466A1 SYSTEM AND METHODS FOR OPTICAL LAMBDA FLOW STEERING 审中-公开
标题翻译：用于光学平板流动转向的系统和方法
公开(公告)号：WO2015107466A1
公开(公告)日：2015-07-23
申请号：PCT/IB2015/050282
申请日：2015-01-14
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： XIA, Ming , SHIRAZIPOUR, Meral , ZHANG, Ying , GREEN, Howard , TAKÁCS, Attila
IPC分类号： H04J14/02
CPC分类号： H04J14/0212 , H04J14/0269 , H04Q11/0003 , H04Q2011/0073
摘要： A system implementing an optical steering domain that steers traffic flows through a plurality of processing nodes is described. The system includes a first, second, and third wavelength selective switch (WSS). The first WSS receives the traffic flows, and transmits traffic flows out a plurality of tributary ports toward the processing nodes. The second WSS receives the processed traffic from the processing nodes, and sends it to a third WSS. The third WSS receives the processed traffic from the second WSS, and causes the processed traffic requiring further processing to be transmitted out its third plurality of tributary ports to be looped back toward the plurality of processing nodes, and causes the processed traffic that does not require further processing to be transmitted by a different tributary port of the third WSS that is an exit port leading out of the optical steering domain.
摘要翻译：描述了实现导向业务流经多个处理节点的光学导向域的系统。该系统包括第一，第二和第三波长选择开关（WSS）。第一WSS接收到流量，并将流量从多个支路端口传送到处理节点。第二个WSS从处理节点接收已处理的流量，并将其发送到第三个WSS。第三WSS从第二WSS接收经处理的流量，并使处理后的流量需要进一步处理，从其第三个多个支路端口传出，以循环回多个处理节点，并使处理后的流量不需要由作为从光导向域引出的出口的第三WSS的不同辅助端口进行进一步处理。

4. 发明申请

WO2015083018A1 A METHOD AND SYSTEM OF SERVICE PLACEMENT FOR SERVICE CHAINING 审中-公开
标题翻译：服务维修服务的方法和系统
公开(公告)号：WO2015083018A1
公开(公告)日：2015-06-11
申请号：PCT/IB2014/065799
申请日：2014-11-04
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： BEHESHTI-ZAVAREH, Neda , ZHANG, Ying
IPC分类号： H04L12/24 , H04L12/715 , H04L12/727
CPC分类号： H04L47/2408 , H04L45/02 , H04L45/121 , H04L45/20
摘要： A method for placing services at network devices is disclosed. A network contains a plurality of network devices and the network offers a set of services to subscribers. Each subscriber of the network utilizes a subset of the set of service, where an order of the services is not predefined. The method starts with ordering the services from the most utilized service to the least utilized, and selects services from the most utilized to the least utilized. For each service, a network device is selected so that placing the service adds a least sum of additional delay based on services already placed in the network, and a path for each subscriber utilizing the service is updated to include the service, where the path is an ordered chain of services, and where the service is inserted in the path to result in minimum addition to delay to the subscriber. Implementation uses software defined networks (SDN) and OpenFlow. Enables service function chaining and network function virtualization without predetermined order of services to be applied.
摘要翻译：公开了一种在网络设备上放置业务的方法。网络包含多个网络设备，并且网络向订户提供一组服务。网络的每个用户利用服务集合的子集，其中服务的顺序未被预定义。该方法首先将服务从最常用的服务排序到最少的服务，并选择从最受欢迎的服务到最不利用的服务。对于每个服务，选择网络设备，使得服务基于已经放置在网络中的服务来添加最小额外的延迟，并且利用该服务的每个订户的路径被更新为包括服务，其中路径是一个有序的服务链，并且服务被插入路径中，从而导致用户的最小延迟。实现使用软件定义网络（SDN）和OpenFlow。支持服务功能链接和网络功能虚拟化，无需预定的服务顺序。

5. 发明申请

WO2013186712A1 ELASTIC ENFORCEMENT LAYER FOR CLOUD SECURITY USING SDN 审中-公开
标题翻译：使用SDN进行云安全的弹性执行层
公开(公告)号：WO2013186712A1
公开(公告)日：2013-12-19
申请号：PCT/IB2013/054794
申请日：2013-06-11
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , KOOREVAAR, Tommy , POURZANDI, Makan , ZHANG, Ying
发明人： KOOREVAAR, Tommy , POURZANDI, Makan , ZHANG, Ying
IPC分类号： G06F9/455 , G06F21/53 , H04L29/06
CPC分类号： G06F9/45558 , G06F2009/4557 , G06F2009/45595 , H04L45/306 , H04L63/20
摘要： An efficient elastic enforcement layer (EEL) for realizing security policies is deployed in a cloud computing environment based on a split architecture framework. The split architecture network includes a controller coupled to switches. When the controller receives a packet originating from a source VM, it extracts an application identifier from the received packet that identifies an application running on the source VM. Based on the application identifier, the controller determines a chain of middlebox types. The controller further determines middlebox instances based on current availability of resources. The controller then adds a set of rules to the switches to cause the switches to forward the packet toward the destination VM via the middlebox instances.
摘要翻译：基于分割架构框架，在云计算环境中部署了实现安全策略的高效弹性执行层（EEL）。分离架构网络包括耦合到交换机的控制器。当控制器接收到源VM的数据包时，它从接收到的数据包中提取一个应用程序标识符，该数据包标识在源虚拟机上运行的应用程序。基于应用程序标识符，控制器确定一系列中间件类型。控制器还根据资源的当前可用性进一步确定中间件实例。然后，控制器向交换机添加一组规则，以使交换机通过中间箱实例将数据包转发到目标VM。

6. 发明申请

WO2013164795A1 CONGESTION CONTROL IN PACKET DATA NETWORKING 审中-公开
标题翻译：分组数据网络中的约束控制
公开(公告)号：WO2013164795A1
公开(公告)日：2013-11-07
申请号：PCT/IB2013/053504
申请日：2013-05-02
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： BEHESHTI-ZAVAREH, Neda , ZHANG, Ying
IPC分类号： H04L12/24 , H04L12/815 , H04L12/891
CPC分类号： H04L47/12 , H04L43/062 , H04L43/0882 , H04L47/115 , H04L47/22 , H04L47/41 , Y02D50/30
摘要： A network element controls congestion in a link of a packet data network. A congested link is identified and a throttle rate is determined for one or more of the traffic groups traversing the congested link. The central controller determines the throttle rates using a weight of the group and the current traffic rate of the group through the link. The throttle rates are sent to switches to throttle traffic for each affected group.
摘要翻译：网络元件控制分组数据网络的链路中的拥塞。识别出拥塞的链路，并且针对穿过拥塞的链路的一个或多个业务组确定节流速率。中央控制器使用组的权重和通过链路的组的当前流量速率来确定节流率。油门速度被发送到交换机以遏制每个受影响组的流量。

7. 发明申请

WO2013150438A1 CONGESTION CONTROL AND RESOURCE ALLOCATION IN SPLIT ARCHITECTURE NETWORKS 审中-公开
标题翻译：分布式架构网络中的约束控制和资源分配
公开(公告)号：WO2013150438A1
公开(公告)日：2013-10-10
申请号：PCT/IB2013/052606
申请日：2013-04-01
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： ZHANG, Ying , BEHESHTI-ZAVAREH, Neda
IPC分类号： H04L12/815 , H04L12/891
CPC分类号： H04L47/22 , H04L41/5025 , H04L43/0835 , H04L43/0882 , H04L47/41 , H04L47/822 , Y02D50/30
摘要： A controller performs network-wide congestion control in a split architecture network. The controller receives flow statistics from switches for each entity that communicates via the network. The controller chooses a most congested link as a bottleneck link based on a packet loss rate that is derived from the flow statistics and estimated for each entity on each link of the network. The controller identifies a target path in the network that passes through the bottleneck link and carries the most traffic, and calculates a throttling probability for each sharing entity that shares the target path based on the capacity of the bottleneck link, capacity of the first link of the target path, bandwidth consumption and packet loss rate of each sharing entity. The controller then transmits the throttling probability of each sharing entity to the ingress switch of the target path to reduce the congestion on the bottleneck link.
摘要翻译：控制器在分离式架构网络中执行全网络拥塞控制。控制器从交换机接收通过网络进行通信的每个实体的流量统计信息。控制器基于从流量统计导出并针对网络的每个链路上的每个实体估计的分组丢失率，选择最拥挤的链路作为瓶颈链路。控制器识别网络中通过瓶颈链路并承载最多流量的目标路径，并且基于瓶颈链路的容量计算共享目标路径的每个共享实体的节流概率，第一链路的容量每个共享实体的目标路径，带宽消耗和丢包率。然后，控制器将每个共享实体的节流概率发送到目标路径的入口交换机，以减少瓶颈链路上的拥塞。

8. 发明申请

WO2012028972A1 LOCALIZED CONGESTION EXPOSURE 审中-公开
标题翻译：本地化接触
公开(公告)号：WO2012028972A1
公开(公告)日：2012-03-08
申请号：PCT/IB2011/053223
申请日：2011-07-19
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , ZHANG, Ying , JOHANSSON, Ingemar , GREEN, Howard
发明人： ZHANG, Ying , JOHANSSON, Ingemar , GREEN, Howard
IPC分类号： H04L12/56 , H04W28/10
CPC分类号： H04L47/2483 , H04L12/4633 , H04L47/115 , H04L47/12 , H04L47/127 , H04L47/14 , H04L47/22 , H04L47/26 , H04L47/32 , H04L61/2592 , H04W28/0231 , H04W28/0242 , H04W28/0284 , H04W28/0289 , H04W28/08 , H04W28/12 , H04W52/343 , H04W84/042
摘要： A method for localized congestion exposure within a local loop in a cellular network that is performed by a localized congestion exposure receiver node of the local loop. The method includes receiving downlink packets destined for a downstream user device. The downlink packets have headers that indicate a level of congestion experienced by the downlink packets. The headers also indicate a level of expected downstream congestion declared by an upstream node. The method also includes forwarding the downlink packets to the downstream user device through a wireless connection. The method further includes sending packets upstream that have feedback indicative of the level of congestion experienced by the downlink packets and any congestion experienced within the localized congestion exposure receiver node.
摘要翻译：一种在本地环路的本地拥塞暴露接收器节点执行的蜂窝网络中本地环路内的局部拥塞暴露的方法。该方法包括接收去往下游用户设备的下行链路分组。下行链路分组具有指示下行链路分组经历的拥塞的级别的报头。标头还指示由上游节点声明的预期下游拥塞的级别。该方法还包括通过无线连接将下行链路分组转发到下游用户设备。该方法还包括向上游发送具有指示下行链路分组经历的拥塞的级别以及局部拥塞暴露接收机节点内经历的任何拥塞的反馈的分组。

9. 发明申请

WO2016079722A1 PASSIVE PERFORMANCE MEASUREMENT FOR INLINE SERVICE CHAINING 审中-公开
标题翻译：用于在线服务链接的被动性能测量
公开(公告)号：WO2016079722A1
公开(公告)日：2016-05-26
申请号：PCT/IB2015/059021
申请日：2015-11-20
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： ZHANG, Ying , HALPERN, Joel
IPC分类号： H04L12/26
CPC分类号： H04L43/0829 , H04B1/0003 , H04B17/00 , H04L43/062 , H04L43/0835 , H04L43/0858 , H04L47/12
摘要： A method is implemented by a computing device to monitor the performance of packet processing in an in-line service chain. The computing device is in communication with a plurality of network devices forming a software defined network (SDN) and the in- line service chain. The SDN includes a controller implemented by the computing device to configure the plurality of network devices. The plurality of devices includes a set of switches monitoring packets traversing the in-line service chain including at least one service.
摘要翻译：计算设备实现一种方法来监视在线服务链中分组处理的性能。计算设备与形成软件定义网络（SDN）和在线服务链的多个网络设备通信。 SDN包括由计算设备实现的用于配置多个网络设备的控制器。多个设备包括一组监视跨越包括至少一个服务的在线服务链的分组的交换机。

10. 发明申请

WO2015121789A1 DENIAL OF SERVICE PREVENTION IN A SOFTWARE DEFINED NETWORK 审中-公开
标题翻译：软件定义网络中的服务防范异常
公开(公告)号：WO2015121789A1
公开(公告)日：2015-08-20
申请号：PCT/IB2015/050969
申请日：2015-02-09
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： ZHANG, Ying , MANGHIRMALANI, Ravi
IPC分类号： H04L29/06
CPC分类号： H04L47/32 , H04L43/0894 , H04L43/16 , H04L45/124 , H04L63/1416 , H04L63/1458
摘要： A method in a controller module is described for allocating rate-limiting meters to a plurality of network elements (NEs) of a software defined network (SDN). The method includes receiving a plurality of rate limit indicators, from one or more network destinations, for a plurality of flows of data that arrive at the network destinations; sending one or more meter installation messages to cause a plurality of meter entries corresponding to the plurality of rate limit indicators to be installed by one or more of the NEs according to a metering configuration that is determined by, for each of the flows, selecting a flow of the plurality of flows that has not been selected yet and that traverses a path in the SDN having a fewest number of the plurality of NEs, and selecting a NE from the path that the selected flow traverses to have a meter entry installed.
摘要翻译：描述了一种控制器模块中的一种方法，用于将速率限制表分配给软件定义网络（SDN）的多个网络元件（NE）。该方法包括从一个或多个网络目的地接收多个到达网络目的地的多个数据流的速率限制指示符; 发送一个或多个仪表安装消息，以使得与所述多个速率限制指示符相对应的多个计费表条目由一个或多个所述网元根据由所述流程确定的计量配置来安装，尚未选择的多个流的流，并且遍历具有多个NE的最少数量的SDN中的路径，并且从所选择的流程所经过的路径中选择一个具有安装了计费器条目的NE。

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