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91. 发明授权

EP2868044B1 DYNAMIC SPANNING TREE ROOT SELECTION 有权转让
标题翻译：动态开花树根选择
公开(公告)号：EP2868044B1
公开(公告)日：2017-09-20
申请号：EP13810449.2
申请日：2013-06-28
申请人： Sonos, Inc.
发明人： GOSSAIN, Hrishikesh , MILLINGTON, Nicholas A.J. , PETERS, Jeffrey M.
IPC分类号： H04L12/28 , H04L12/46 , H04L12/753
CPC分类号： H04L45/48 , H04L12/2838 , H04L12/462 , H04L45/02
摘要： Systems, methods, apparatus, and articles of manufacture to provide root re-selection in a spanning tree protocol are disclosed. An example method includes transmitting, by a current root network device of a network, a first unicast message to a network router, wherein the network is organized according to a spanning tree protocol. If the current root network device determines that the first unicast message is not received by one or more other network devices, the current root network device remains the root device for the network and sends a second unicast message at a later time to the network router. If the first unicast message is received by one or more other network devices, the method comprises: receiving, by the current root network device, one or more responses from the one or more other network devices; determining, by the current root network device based on the received responses, that a particular network device that is different than the current root network device is a more optimal root of the network spanning tree than the current root network device; and sending, by the current root network device, a message to designate the identified particular network device as the new root network device.
摘要翻译：公开了在生成树协议中提供根重选的系统，方法，装置和制造物品。示例方法包括从回放网络上的当前根设备向回放网络上的路由器发送查询消息。该示例方法包括评估从当前根和路由器之间的至少一个中间设备接收到的响应，该至少一个中间设备将来自根的查询消息中继到路由器，并向当前根设备发回响应，指示与该中间设备相关联的根路径成本。示例方法包括基于接收到的根路径成本来确定用于回放网络的新根设备的更新指定。该示例方法包括，如果新根设备不同于当前根设备，则交换当前根和新根之间的桥优先级。

92. 发明授权

EP2549698B1 Scalable forwarding table with overflow address learning 失效转让
公开(公告)号：EP2549698B1
公开(公告)日：2017-09-13
申请号：EP12154002.5
申请日：2012-02-06
申请人： Juniper Networks, Inc.
发明人： An, Yafan , Kumar, Sandeep , Aybay, Gunes , Dubey, Rakesh
IPC分类号： H04L12/751 , H04L12/701 , H04L12/741 , H04L29/12
CPC分类号： H04L45/124 , H04L45/02 , H04L45/025 , H04L45/08 , H04L45/12 , H04L45/127 , H04L45/22 , H04L45/50 , H04L45/54 , H04L45/745 , H04L45/7453 , H04L61/10 , H04L61/103 , H04L67/1072 , H04W28/0278

93. 发明公开

EP3208977A1 DATA FORWARDING METHOD, DEVICE AND SYSTEM IN SOFTWARE-DEFINED NETWORKING 有权转让
标题翻译：数据转发方法，设备和系统在软件定义网络中的应用
公开(公告)号：EP3208977A1
公开(公告)日：2017-08-23
申请号：EP14908176.2
申请日：2014-12-17
申请人： Huawei Technologies Co., Ltd.
发明人： ZUO, Shaofu
IPC分类号： H04L12/70
CPC分类号： H04L45/74 , H04L12/18 , H04L12/1854 , H04L12/6418 , H04L45/02 , H04L45/34 , H04L45/38 , H04L45/50 , H04L45/54 , H04L45/64 , H04L45/745 , H04L49/201 , H04L69/22
摘要： The present invention provides a data forwarding method, device, and system in software-defined networking. An SDN control device delivers a proactive flow entry according to network topology information, where the proactive flow entry is unrelated to a service, but only related to the network topology information. After being delivered, the proactive flow entry may be reused during data forwarding. After data is received, the SDN control device delivers reactive flow entries to some switching devices, where the reactive flow entries are related to the service, but are delivered only to some switching devices. This reduces flow entries delivered by the SDN control device to some switching devices, so that occupation of resources of the SDN control device and a switching device by flow entries is reduced.
摘要翻译：本发明提供了一种软件定义联网的数据转发方法，设备和系统。 SDN控制设备根据网络拓扑信息下发主动流表项，主动流表项与业务无关，只与网络拓扑信息相关。在交付之后，在数据转发期间可以重新使用主动流条目。数据收到后，SDN控制设备向一些交换设备下发反应流表项，反应流表项与业务相关，但只交付给一些交换设备。这样可以减少SDN控制设备下发给一些交换设备的流表项，从而减少流表项对SDN控制设备和交换设备资源的占用。

94. 发明公开

EP2648374A4 METHOD AND DEVICE FOR PROCESSING DATA CELL 有权
标题翻译： VERFAHREN UND VORRICHTUNG ZUR DATENZELLENVERARBEITUNG
公开(公告)号：EP2648374A4
公开(公告)日：2017-08-23
申请号：EP11853857
申请日：2011-10-24
申请人： ZTE CORP
发明人： LIU JIANLI , ZENG MIN
IPC分类号： H04L12/721
CPC分类号： H04L45/02 , H04L45/16 , H04L45/245 , Y02D50/30
摘要： A method and device for processing data cells are disclosed. The method includes: configuring a unicast routing table which includes a corresponding relation between unicast destination addresses and port trunking (Trunks), and a multicast routing table which includes a corresponding relation between multicast group addresses and Trunks; receiving data cells; determining a corresponding Trunk according to types of the data cells, if the data cell is a unicast cell, extracting a destination address of the unicast cell, querying the unicast routing table, and obtaining a Trunk corresponding to the unicast cell; and if the data cell is a multicast cell, extracting a multicast group address of the multicast cell, querying the multicast routing table, and obtaining one or more Trunks corresponding to the multicast cell; and selecting an output link from the determined Trunks according to a preset load balancing policy, and sending data cells through the selected output link. In the present document, a service traffic balance of each link is guaranteed, and the delay of the data cell within the switched network is reduced at the meantime.
摘要翻译：公开了一种用于处理数据单元的方法和设备。该方法包括：配置单播路由表，该单播路由表包括单播目的地址与端口汇聚（Trunks）之间的对应关系，以及包括组播地址与中继之间的对应关系的组播路由表; 接收数据信元; 根据所述数据小区的类型确定对应的中继，若所述数据小区为单播小区，则提取所述单播小区的目的地址，查询所述单播路由表，获得所述单播小区对应的中继线; 若所述数据单元为多播小区，则提取所述多播小区的多播组地址，查询所述多播路由表，并获取所述多播小区对应的一个或多个中继线; 以及根据预设的负载均衡策略从确定的中继线中选择输出链路，并通过所选择的输出链路发送数据单元。在本文档中，保证了每条链路的业务流量平衡，同时减少了交换网络内数据单元的延迟。

95. 发明公开

EP3198798A1 COMPILER FOR AND METHOD OF SOFTWARE DEFINED NETWORKING, STORAGE AND COMPUTE DETERMINING PHYSICAL AND VIRTUAL RESOURCES 有权
标题翻译：编译器和软件定义方法的定义网络，存储和计算确定物理和虚拟资源
公开(公告)号：EP3198798A1
公开(公告)日：2017-08-02
申请号：EP15791787.3
申请日：2015-09-21
申请人： Wolting Holding B.V.
发明人： WOLTING, Simon
IPC分类号： H04L12/24 , H04L12/00 , H04L12/851 , H04L12/931 , H04L29/08 , H04L12/701
CPC分类号： H04L45/02 , H04L41/12 , H04L49/252 , H04L49/70
摘要： Method of and a compiler for controlling a network based on a logical network model. The compiler determines physical and/or virtual resources, comprising of physical nodes and physical links, against which the logical model can be compiled. The network has known physical nodes, unknown physical nodes and logical nodes. The known physical nodes are “physical nodes” which are existing or still to be setup (virtual) nodes in the network. The known physical nodes are interconnected by physical links in accordance with a physical network layout. The logical network model has logical nodes indicated with a logical node name which refers to at least one known physical node or one unknown physical node in the network. The method uses a depth-mapping relation defining how the logical nodes are mapped to the known physical nodes and the unknown physical nodes. The term “unknown physical node” is used to define an imaginary physical node to which logical nodes can be mapped through depth-mappings and which are to be substituted by a physical node of the network of which the physical node name is stored. The method includes creating logical links between the logical nodes in dependence on the paths between the known physical nodes and/or the unknown physical nodes and on the depth-mapping relation. Known physical nodes are determined for unknown physical nodes and known physical paths are determined for unknown physical paths between unknown physical nodes by performing a search. The method uses edge-relationships between logical link, logical path, physical link, physical path and depth-mapping relations. Logical paths in the logical network are transformed into a physical path comprising of physical links between the physical nodes through recursive calculation and forwarding instructions are created for the physical nodes, in dependence on the edge-relationships and point-of-attachment names between physical links and physical nodes.
摘要翻译：基于逻辑网络模型的用于控制网络的方法和编译器。编译器确定物理和/或虚拟资源，包括物理节点和物理链路，可以编译逻辑模型。网络具有已知的物理节点，未知的物理节点和逻辑节点。已知的物理节点是网络中现有的或仍将设置（虚拟）节点的“物理节点”。已知的物理节点根据物理网络布局通过物理链路互连。逻辑网络模型具有用逻辑节点名称指示的逻辑节点，该逻辑节点名称指网络中的至少一个已知物理节点或一个未知物理节点。该方法使用定义如何将逻辑节点映射到已知物理节点和未知物理节点的深度映射关系。术语“未知物理节点”用于定义虚拟物理节点，逻辑节点可通过深度映射映射到虚拟物理节点，并由存储物理节点名称的网络的物理节点替代。该方法包括根据已知物理节点和/或未知物理节点之间的路径以及深度映射关系在逻辑节点之间创建逻辑链路。对于未知的物理节点确定已知的物理节点，并且通过执行搜索来确定未知物理节点之间的未知物理路径的已知物理路径。该方法使用逻辑链路，逻辑路径，物理链路，物理路径和深度映射关系之间的边缘关系。通过递归计算将逻辑网络中的逻辑路径变换成包括物理节点之间的物理链路的物理路径，并且根据物理链路之间的边缘关系和附接点名称为物理节点创建转发指令和物理节点。

96. 发明授权

EP2314025B1 LINK DIVERSITY AND LOAD BALANCING ACROSS DIGITAL AND OPTICAL EXPRESS-THRU NODES 有权
标题翻译：在数字和光纤快速通道之间实现链路分集和负载平衡
公开(公告)号：EP2314025B1
公开(公告)日：2017-08-02
申请号：EP09774365.2
申请日：2009-06-30
申请人： Infinera Corporation
发明人： KUNJIDHAPATHAM, Ashok , MISRA, Mohit , KU, Biao
IPC分类号： H04L12/721 , H04L12/751 , H04L12/707
CPC分类号： H04L45/22 , H04L45/02 , H04L45/62

97. 发明授权

EP2983331B1 METHOD AND DEVICE FOR STORING AND SENDING MAC ADDRESS ENTRY 有权
公开(公告)号：EP2983331B1
公开(公告)日：2017-07-19
申请号：EP15184795.1
申请日：2013-02-20
申请人： Huawei Technologies Co., Ltd.
发明人： ZENG, Qing , XU, Xiaohu
IPC分类号： H04L12/46 , H04L12/701 , H04L12/751
CPC分类号： H04L61/6022 , H04L12/4633 , H04L12/4641 , H04L45/02 , H04L45/74 , H04L61/10

98. 发明公开

EP3190752A1 METHOD, SYSTEM AND MEDIUM FOR AVOIDING TRAFFIC FLOODING DUE TO ASYMMETRIC MAC LEARNING AND ACHIEVING PREDICTABLE CONVERGENCE FOR PBB-EVPN ACTIVE-ACTIVE REDUNDANCY 有权
标题翻译：用于避免由于不对称MAC学习和实现PBB-EVPN主动冗余的可预测收敛而导致的流量淹没的方法，系统和媒体
公开(公告)号：EP3190752A1
公开(公告)日：2017-07-12
申请号：EP17150432.7
申请日：2017-01-05
申请人： Juniper Networks, Inc.
发明人： TIRUVEEDHULA, Maruthi Kishore , SINGH, Tapraj , RUSTAGI, Sunesh , PAUL, Arijit , PATEL, Vikas V. , AGARWAL, Himanshu , PENTALA, Suneel Kumar
IPC分类号： H04L12/721 , H04L12/46 , H04L12/741 , H04L12/751 , H04L12/707
CPC分类号： H04L45/02 , H04L12/462 , H04L12/4641 , H04L45/24 , H04L45/66 , H04L45/68 , H04L45/74
摘要： In one example, a method includes performing L2 learning of a C-MAC address included in a first L2 data message by a first provider edge (PE) router included in an Ethernet Segment of a Provider-Backbone Bridging Ethernet Virtual Private Network (PBB-EVPN); sending to a second PE router within the Ethernet Segment an L2 control message comprising the C-MAC address and a B-MAC address corresponding to the Ethernet Segment of the PBB-EVPN, wherein the L2 control message informs the second PE router of the reachability of the C-MAC address through the first PE router; receiving, by the first PE router and from the second PE router, a second L2 data message as unicast traffic destined for the C-MAC address; and forwarding the second L2 data message to the first CE router.
摘要翻译：在一个示例中，一种方法包括通过包括在提供商 - 骨干桥接以太网虚拟专用网络（PBB-1）的以太网段中的第一提供商边缘（PE）路由器执行包括在第一L2数据消息中的C-MAC地址的L2学习， EVPN）; 向所述以太网段内的第二PE路由器发送包括与所述PBB-EVPN的以太网段对应的C-MAC地址和B-MAC地址的L2控制消息，其中所述L2控制消息通知所述第二PE路由器可达性通过第一个PE路由器的C-MAC地址; 由所述第一PE路由器并且从所述第二PE路由器接收第二L2数据消息作为目的地为所述C-MAC地址的单播业务; 并将第二L2数据报文转发给第一CE路由器。

99. 发明公开

EP3189631A1 AUTO-DISCOVERY OF PACKET ISLANDS OVER GMPLS-UNI 有权
标题翻译：在GMPLS-UNI上自动发现数据包岛屿
公开(公告)号：EP3189631A1
公开(公告)日：2017-07-12
申请号：EP14758931.1
申请日：2014-09-03
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： GERÖ, Balázs Peter , CECCARELLI, Daniele , KERN, András
IPC分类号： H04L12/46 , H04L12/751 , H04L12/915 , H04Q11/00 , H04L12/24
CPC分类号： H04L12/4604 , H04L12/4633 , H04L41/04 , H04L41/0893 , H04L41/5096 , H04L45/02 , H04L45/04 , H04Q11/0066 , H04Q11/0067 , H04Q2011/0077
摘要： The present disclosure generally relates to the support of optical connection setup. More specifically, the present disclosure relates to a technique of supporting provision of a connection via a data communication network of an optical network between packet network islands. A method embodiment comprises establishing a Border Gateway Protocol-Link State, BGP-LS, connection via the DCN between a first edge node of the first packet network island and a BGP-LS node in the optical network.
摘要翻译：本公开总体上涉及光连接设置的支持。更具体地，本公开涉及支持在分组网岛之间经由光网络的数据通信网络提供连接的技术。方法实施例包括经由DCN在光网络中的第一分组网络岛的第一边缘节点与BGP-LS节点之间建立边界网关协议 - 链路状态BGP-LS连接。

100. 发明授权

EP2624525B1 METHOD, APPARATUS AND VIRTUAL PRIVATE NETWORK SYSTEM FOR ISSUING ROUTING INFORMATION 有权
标题翻译：用于发布路由信息的方法，装置和虚拟私人网络系统
公开(公告)号：EP2624525B1
公开(公告)日：2017-07-05
申请号：EP11853907.1
申请日：2011-11-29
申请人： Huawei Technologies Co., Ltd.
发明人： ZHENG, Ruobin
IPC分类号： H04L29/12 , H04L12/771 , H04L12/751 , H04L12/715 , H04L12/721 , H04L12/749 , H04L12/741
CPC分类号： H04L45/741 , H04L45/02 , H04L45/04 , H04L45/54 , H04L45/66 , H04L61/2015 , H04L61/203
摘要： The present invention discloses a method for advertising routing information, and embodiments of the present invention further provide a virtual private network server device, an IP edge node device, and a client-based virtual private network system. In the technical solutions of the present invention, a virtual private network server first collects MAC address routing information of each site on a local virtual private network and then sends MAC address routing information of each site except a destination site in a unicast manner to a customer edge node that corresponds to each site on the virtual private network. This solves the problem that CE nodes in sites on the virtual private network cannot exchange routing information with each other by using a routing protocol because multicast packets are filtered by an access node of the data center network.
摘要翻译：本发明公开了一种通告路由信息的方法，本发明实施例还提供了一种虚拟专用网络服务器设备，IP边缘节点设备和基于客户端的虚拟专用网络系统。在本发明的技术方案中，虚拟专用网服务器首先收集本地虚拟专用网各站点的MAC地址路由信息，然后以单播方式向客户发送除目的站点以外的各站点的MAC地址路由信息边缘节点对应于虚拟专用网络上的每个站点。解决了由于组播报文被数据中心网络的接入节点过滤而导致虚拟专用网络中的CE节点之间无法通过路由协议交换路由信息的问题。

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