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41. 发明公开

EP2901625A4 SYSTEM AND METHODS FOR IMPROVED NETWORK ROUTING 有权
标题翻译：系统和方法以提高网络路由
公开(公告)号：EP2901625A4
公开(公告)日：2016-04-27
申请号：EP13840532
申请日：2013-09-27
申请人： UNIV CORNELL
发明人： MICHAEL NITHIN , TANG AO
IPC分类号： H04L12/721 , H04L12/28 , H04L12/707 , H04L12/753
CPC分类号： H04L45/123 , H04L45/22 , H04L45/24 , H04L45/48 , H04L47/17
摘要： Known intra-domain routing methods (e.g., OSPF and IS-IS) are link-state routing protocols with hop-by-hop forwarding that sacrifice optimal traffic engineering for ease of implementation and management. Known optimal traffic engineering procedures are either not link-state methods or require source routing—characteristics that make them difficult to implement. Certain embodiments of the present invention include a fully distributed, adaptive, link-state routing protocol with hop-by-hop forwarding configured to achieve optimal traffic engineering. Such embodiments facilitate significant performance improvements relative to known intra-domain routing methods and decrease network infrastructure requirements.

42. 发明公开

EP2922247A4 METHOD AND APPARATUS FOR RAPIDLY RESTORING SPANNING TREE BACKUP PORT 失效转让
标题翻译： VERFAHREN UND VORRICHTUNG ZUR SCHNELLEN WIEDERHERSTELLUNG EINES SPANNING-TREE-SICHERUNGSPORTS
公开(公告)号：EP2922247A4
公开(公告)日：2016-01-20
申请号：EP13807157
申请日：2013-08-29
申请人： ZTE CORP
发明人： JIA SHURUI
IPC分类号： H04L12/703
CPC分类号： H04L45/22 , H04L45/28 , H04L45/48 , H04L49/30
摘要： Disclosed is a fast recovery method for a Spanning Tree Protocol (STP) based backup port, and the method includes: it is detected that a failure occurs on a port of an STP-based device; and it is determined whether there is a backup port taking a failed port as a master port, and when it is determined that there is such a backup port, said backup port is changed to a master port; further disclosed is a fast recovery device for an STP based backup port. By means of the technical solutions of the disclosure, it is possible to shorten significantly recovery time of a backup port, and improve greatly performance of link recovery.
摘要翻译：公开了一种基于生成树协议（STP）的备份端口的快速恢复方法，该方法包括：检测到基于STP的设备的端口发生故障; 并且确定是否存在将故障端口作为主端口的备份端口，并且当确定存在这样的备份端口时，所述备份端口被改变为主端口; 进一步公开了一种用于基于STP的备份端口的快速恢复设备。通过本公开的技术方案，可以缩短备份端口的显着恢复时间，提高链路恢复的性能。

43. 发明公开

EP2965468A1 NETWORK BANDWIDTH ALLOCATION IN MULTI-TENANCY CLOUD COMPUTING NETWORKS 有权
标题翻译：网络带宽分配策略在云计算网络，多方参与
公开(公告)号：EP2965468A1
公开(公告)日：2016-01-13
申请号：EP14720695.7
申请日：2014-02-14
申请人： Telefonaktiebolaget L M Ericsson (Publ)
发明人： ZHANG, Ying
IPC分类号： H04L12/24 , G06F9/50 , H04L12/801 , H04L12/753 , H04L29/08
CPC分类号： H04L41/0806 , G06F9/5072 , G06F9/5077 , H04L41/0896 , H04L41/142 , H04L41/5096 , H04L45/48 , H04L47/10 , H04L67/10
摘要： A computing device determines an optimal allocation of network bandwidth on a plurality of communications links for a plurality of virtual machines (VMs) in a multi-tenant cloud network based upon a set of bandwidth requirements for the plurality of VMs. The computing device generates a plurality of spanning tree data structures (TDSs). Edges in the TDSs include computed bandwidth values indicating an amount of bandwidth to be reserved over a communications link represented by that edge for the plurality of VMs. The computing device generates a weighted distance value for each TDS of the plurality of TDSs, and selects a TDS of the plurality of TDSs having a smallest weighted distance value as the TDS having computed bandwidth values representing the optimal allocation of network bandwidth.

44. 发明公开

EP2962431A1 SPANNING TREE IN FABRIC SWITCHES 有权转让
标题翻译：布料开关中的开花树
公开(公告)号：EP2962431A1
公开(公告)日：2016-01-06
申请号：EP14711886.3
申请日：2014-02-28
申请人： Brocade Communications Systems, Inc.
发明人： VENKATA, Ganesh D. , GUPTA, Amit , THAYALAN, Prabu , VENKATESH, Vardarajan , RAMAN, Mythilikanth , MUTHIAH, Selvam
IPC分类号： H04L12/753
CPC分类号： H04L45/48 , H04L12/462 , H04L45/02 , H04L49/70
摘要： One embodiment of the present invention provides a switch. The switch includes a packet processor and a spanning tree management module. The packet processor obtains information associated with a spanning tree from a message. The spanning tree management module, in response to the obtained information being superior to locally available information of the spanning tree, determines the port role of a local port of the switch for the spanning tree to be the root port and the port state of the local port for the spanning tree to be blocking.
摘要翻译：本发明的一个实施例提供了一种开关。交换机包括分组处理器和生成树管理模块。分组处理器从消息中获得与生成树相关联的信息。生成树管理模块响应获取的信息优先于生成树的本地可用信息，确定交换机的本地端口对于生成树的端口角色为本端口的端口角色和端口状态阻止生成树的端口。

45. 发明公开

EP2863595A4 TOPOLOGY GRADING METHOD AND APPARATUS, AND FLOODING PROCESSING METHOD AND APPARATUS 有权
标题翻译： VORRICHTUNG的地球物理学家协会
公开(公告)号：EP2863595A4
公开(公告)日：2016-01-06
申请号：EP13852964
申请日：2013-03-29
申请人： HUAWEI TECH CO LTD
发明人： LI JIANFEI , WANG RONG
IPC分类号： H04L12/715 , H04L12/24 , H04L12/721 , H04L12/741 , H04L12/747 , H04L12/751 , H04L12/753 , H04L29/12
CPC分类号： H04L45/745 , H04L45/02 , H04L45/32 , H04L45/48 , H04L61/103 , H04L61/2015 , H04L61/6022
摘要： Embodiments of the present invention disclose a topology stratification method and apparatus, and a flooding processing method and apparatus. The method includes the following: First, a controller receives a data packet that is reported by a switch connected to a source host; then the controller searches a local MAC address table of physical addresses of devices to determine whether a destination address of the data packet exists, and the controller acquires a destination port if no destination address of the data packet exists, where the destination port is a port of a switch connected to a destination host, and the destination host is another host different from the source host; and finally, the controller uses the destination port as a destination address to generate a routing table, and sends the routing table to the switch connected to the source host, so that the switch connected to the source host forwards the data packet according to the routing table. The present invention is applicable to the field of communications systems.
摘要翻译：本发明的实施例公开了一种拓扑分层方法和装置，以及一种泛洪处理方法和装置。该方法包括：首先，控制器接收由连接到源主机的交换机报告的数据包; 那么控制器在本地MAC地址表中搜索设备的物理地址表，以确定数据包的目的地址是否存在，如果不存在数据包的目的地址，则控制器获取目的地端口，其中目的地端口是端口连接到目的主机的交换机，目的主机是与源主机不同的另一主机; 最后，控制器使用目的端口作为目的地址生成路由表，并将路由表发送到连接到源主机的交换机，以便连接到源主机的交换机根据路由转发数据包表。本发明可应用于通信系统领域。

46. 发明授权

EP2392105B1 PORT TABLE FLUSHING IN ETHERNET NETWORKS 有权
标题翻译：空端口表以太网络
公开(公告)号：EP2392105B1
公开(公告)日：2015-10-07
申请号：EP09778996.0
申请日：2009-01-30
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： KAPITANY, Gábor , PLOSZ, Sándor , HORVATH, Dániel , PALLOS, Richard , FARKAS, János
IPC分类号： H04L12/437 , H04L12/751 , H04L12/721 , H04L12/703 , H04L12/705 , H04L12/753 , H04L12/46
CPC分类号： H04L12/437 , H04L12/462 , H04L45/02 , H04L45/025 , H04L45/18 , H04L45/28 , H04L45/48 , H04L45/66 , Y02D30/32
摘要： A method and apparatus for flushing port tables in an Ethernet network that includes a Root Bridge node (1) and a plurality of bridge nodes (2-7). A ring of bridge nodes affected by a change in the topology of the Ethernet network is identified from the plurality of, bridge nodes. The ring of bridge nodes (2-7) includes a branching bridge node (2) providing a connection to the Root Bridge node (1). Port tables are flushed only at the bridge nodes on the ring (2-7), rather than all of the bridge nodes in the Ethernet network, which greatly reduces the amount of signalling required during a relearning process.

47. 发明公开

EP2883334A1 TECHNIQUES FOR FLOODING OPTIMIZATION FOR LINK STATE PROTOCOLS IN A NETWORK TOPOLOGY 有权
标题翻译： VERFAHREN ZURSPÜLUNGSOPTIMIERUNGFÜRVERKNÜPFUNGSSTATUSPROTOKOLLEIN EINER NETZWERKTOPOLOGIE
公开(公告)号：EP2883334A1
公开(公告)日：2015-06-17
申请号：EP13750997.2
申请日：2013-08-05
申请人： Cisco Technology, Inc.
发明人： MIRTORABI, Sina , ROY, Abhay
IPC分类号： H04L12/721 , H04L12/751 , H04L12/753 , H04L12/703
CPC分类号： H04L45/32 , H04L45/02 , H04L45/18 , H04L45/28 , H04L45/48
摘要： Techniques are provided for generating efficient flooding tree paths in a network. At a node device in a network, a unicast message is sent to a plurality of node devices in the network. The node device obtains an identifier associated with each of the node devices in the network. The identifier contains information indicating node connectivity for each of the node devices. A selected node device is then identified. The selected node device is one of the node devices in the network that has a lowest identifier value indicating a lowest number of connected node devices to the selected node device in the network. The selected node device is classified as a root flooding tree node device. A flooding tree is generated by performing a shortest path first operation from the selected node device to the plurality of node devices in the network.
摘要翻译：提供了用于在网络中生成有效的洪泛树路径的技术。在网络中的节点设备处，单播消息被发送到网络中的多个节点设备。节点设备获得与网络中的每个节点设备相关联的标识符。标识符包含指示每个节点设备的节点连接性的信息。然后识别所选择的节点设备。所选择的节点设备是网络中具有最低标识符值的节点设备之一，其指示网络中所选节点设备的连接节点设备的最少数量。所选择的节点设备被分类为根洪泛树节点设备。通过从所选择的节点设备到网络中的多个节点设备执行最短路径第一操作来生成洪泛树。

48. 发明公开

EP2724498A4 SWITCHED LINK-BASED VEHICULAR NETWORK ARCHITECTURE AND METHOD 审中-公开
标题翻译：接通基于连接的车载网络体系结构和方法
公开(公告)号：EP2724498A4
公开(公告)日：2015-06-03
申请号：EP12802045
申请日：2012-05-22
申请人： TELCORDIA TECH INC , TOYOTA INFO TECHNOLOGY CT U S A INC
发明人： CHEN WAI , GUHA RATUL K , LEE JOHN , FUKUYAMA JUNICHIRO , VUYYURU RAMA
IPC分类号： H04L12/18 , G08G1/16 , H04B7/155 , H04L12/28 , H04L12/741 , H04L12/753 , H04L29/08 , H04W40/24 , H04W84/18 , H04W88/04 , H04W92/18
CPC分类号： G08G1/163 , H04B7/15521 , H04L12/185 , H04L12/1854 , H04L12/189 , H04L45/48 , H04L45/54 , H04L67/12 , H04W40/246 , H04W84/18 , H04W88/04 , H04W92/18

49. 发明公开

EP1954093A4 ROUTE SELECTING METHOD OF MULTICAST SERVICE IN AUTOMATICALLY SWITCHED OPTICAL NETWORK 审中-公开
标题翻译： IN A自动交换光网络的多播服务路由选择过程
公开(公告)号：EP1954093A4
公开(公告)日：2015-05-27
申请号：EP05813846
申请日：2005-11-25
申请人： ZTE CORP
发明人： GAO PENG , SUN DESHENG , KE MING
IPC分类号： H04Q11/00 , H04L12/733 , H04L12/753 , H04L12/761 , H04L12/931
CPC分类号： H04Q11/0062 , H04L45/122 , H04L45/16 , H04L45/48 , H04L49/201 , H04L49/357 , H04Q2011/0073
摘要： This invention discloses a routing method for multicast service in automatic switched optical network (ASON). In the method, it is to decompose a complex multicast service connection routing problem into a processing of multiple point-to-point connection routings, realize link resource sharing of multicast service in route selecting way, solve the problem in establishing, modifying and recovering multicast service connection in ASON network, and the method has the advantages of simplicity and reliability.

50. 发明公开

EP2871578A1 METHOD FOR MANAGING TREE STRUCTURE, INFORMATION PROCESSING SYSTEM, AND PROGRAM 有权
标题翻译： VERFAHREN ZUR VERWALTUNG EINER BAUMSTRUKTUR，INFORMATIONSVERARBEITUNGSSYSTEM UND PROGRAMM
公开(公告)号：EP2871578A1
公开(公告)日：2015-05-13
申请号：EP12881107.2
申请日：2012-07-09
申请人： Murakumo Corporation
发明人： YAMADA, Hiroyuki
IPC分类号： G06F12/00
CPC分类号： H04L12/44 , G06F17/30575 , H04L41/0816 , H04L41/0883 , H04L45/02 , H04L45/48 , H04L49/90
摘要： A technique of enabling nodes to migrate reliably without impairing the consistency in a system in which large volume of messages are transmitted within a tree structure is provided. In the tree structure, a migrating node forms a connection with a parent node of a migration destination, the migrating node transmits a migration request to a root node, and the root node distributes a reply to the migration request according to the tree structure, upon receiving the reply, the parent node of the migration destination transmits a message, which is received later than the reply, to the migrating node via the formed connection, the migrating node stores in a queue messages which are received later than the reply received via the formed connection, upon receiving a reply distributed according to the tree structure, the migrating node reconstructs the distributed message, based on a message which is received earlier than the reply received from the parent node before migration and a message which is received later than the reply stored in the queue.
摘要翻译：提供了使节点可靠地迁移而不损害在树结构内传输大量消息的系统中的一致性的技术。在树结构中，迁移节点与迁移目的地的父节点形成连接，迁移节点向根节点发送迁移请求，根节点根据树结构向迁移请求分配回复，根据树结构接收到该回复时，迁移目的地的父节点经由形成的连接将经过该应答后接收到的消息发送到迁移节点，迁移节点存储在比经由形成的连接，在接收到根据树结构分发的应答时，迁移节点基于在迁移之前从父节点接收的回复早于接收到的消息和接收晚于该回复的消息来重建分布式消息存储在队列中。

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