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1. 发明公开

US20230327984A1 REVERSE FORWARDING INFORMATION BASE ENFORCEMENT 审中-公开
公开(公告)号：US20230327984A1
公开(公告)日：2023-10-12
申请号：US18333800
申请日：2023-06-13
申请人： 128 Technology, Inc.
发明人： Abilash Menon , Robert Penfield , Hadriel S. Kaplan
IPC分类号： H04L45/00 , H04L47/32 , H04L49/00
CPC分类号： H04L45/36 , H04L49/309 , H04L47/32
摘要： In exemplary embodiments of the present invention, a router determines whether or not to establish a stateful routing session based on the suitability of one or more candidate return path interfaces. This determination is typically made at the time a first packet for a new session arrives at the router on a given ingress interface. In some cases, the router may be configured to require that the ingress interface be used for the return path of the session, in which case the router may evaluate whether the ingress interface is suitable for the return path and may drop the session if the ingress interface is deemed by the router to be unsuitable for the return path. In other cases, the router may be configured to not require that the ingress interface be used for the return path, in which case the router may evaluate whether at least one interface is suitable for the return path and drop the session if no interface is deemed by the router to be suitable for the return path.

2. 发明授权

US09769068B2 Virtual LDP session 有权
公开(公告)号：US09769068B2
公开(公告)日：2017-09-19
申请号：US14040989
申请日：2013-09-30
申请人： Cisco Technology, Inc.
发明人： Ijsbrand Wijnands , Nagendra Kumar
IPC分类号： H04L12/28 , H04L12/723 , H04L12/721
CPC分类号： H04L45/507 , H04L45/36
摘要： A receiving node receives a virtual LDP initialization (vInit) message from a first node, where the vInit message comprises a request to establish a vLDP session between a requesting node and a target node. If the receiving node does not own a destination address of the vInit message, the receiving node is determined to be a relay node. The relay node inserts a relay label into the vInit message, where the relay label is an outgoing label that the relay node uses to reach the first node, and forwards the vInit message toward the destination address. If the receiving node owns the destination address, the receiving node is determined to be the target node, which extracts a stack of relay labels from the vInit message. The relay labels are used to define a return path to the requesting node for messages transmitted over the vLDP session.

3. 发明授权

US09743339B2 Route optimization for on-demand routing protocols for mesh networks 有权
公开(公告)号：US09743339B2
公开(公告)日：2017-08-22
申请号：US14887152
申请日：2015-10-19
申请人： Firetide, Inc.
发明人： Jorjeta Gueorguieva Jetcheva , Sachin Kanodia , Murali Sundaramoorthy Repakula , Mohan Natarajan
IPC分类号： H04W40/38 , H04W24/02 , H04W40/02 , H04W40/28 , H04L12/721 , H04L12/933 , H04L12/733 , H04L12/707 , H04W40/34 , H04W84/18
CPC分类号： H04W40/38 , H04L45/122 , H04L45/22 , H04L45/26 , H04L45/36 , H04L49/1584 , H04W24/02 , H04W40/02 , H04W40/023 , H04W40/28 , H04W40/34 , H04W84/18
摘要： Various embodiments implement a set of low overhead mechanisms to enable on-demand routing protocols. The on-demand protocols use route accumulation during discovery floods to discover when better paths have become available even if the paths that the protocols are currently using are not broken. In other words, the mechanisms (or “Route Optimizations”) enable improvements to routes even while functioning routes are available. The Route Optimization mechanisms enable nodes in the network that passively learn routing information to notify nodes that need to know of changes in the routing information when the changes are important. Learning routing information on up-to-date paths and determining nodes that would benefit from the information is performed, in some embodiments, without any explicit control packet exchange. One of the Route Optimization mechanisms includes communicating information describing an improved route from a node where the improved route diverges from a less nearly optimal route.

4. 发明授权

US09131433B2 Minimization of radio resource usage in multi-hop networks with multiple 有权
标题翻译：在多跳网络中减少无线资源使用量
公开(公告)号：US09131433B2
公开(公告)日：2015-09-08
申请号：US13424523
申请日：2012-03-20
申请人： David Steer , Koon Hoo Teo , Adrian D. Smith
发明人： David Steer , Koon Hoo Teo , Adrian D. Smith
IPC分类号： G01R31/08 , H04W40/24 , H04L12/721 , H04L12/727 , H04W28/08 , H04W40/28 , H04W84/22
CPC分类号： H04W40/246 , H04L45/12 , H04L45/121 , H04L45/36 , H04W28/08 , H04W40/28 , H04W84/22
摘要： Packets in a multi-hop wireless network are routed based on the available link throughputs, network node congestion and the connectivity of the network in a manner that minimizes the use of radio resources and minimizes delay for packets in multi-hop system. The routing method also avoids congestion in the access network, especially near the network access points as provided by network access nodes. Each wireless network node maintains a link table for storing link conditions and associated route costs. Packets are routed according to the low cost route. Subsequent wireless network nodes evaluate whether a lower cost route is available and, if so, route the data packet according to the lower cost route. Every wireless network node transmits the data packet, a specified route and a time stamp indicated a time of the last data entry in the link table that was used to calculate the low cost route.
摘要翻译：基于可用的链路吞吐量，网络节点拥塞和网络的连通性，以最小化无线资源的使用并最小化多跳系统中的分组的延迟的方式来路由多跳无线网络中的分组。路由方法还可以避免接入网络中的拥塞，特别是网络接入节点附近的网络接入点。每个无线网络节点维护用于存储链路条件和相关联的路由成本的链路表。数据包根据低成本路由进行路由。随后的无线网络节点评估较低成本路由是否可用，如果是，则根据较低成本路由路由数据分组。每个无线网络节点发送数据包，指定的路由和时间戳表示在用于计算低成本路由的链路表中最后一个数据条目的时间。

5. 发明授权

US09083553B2 Signaling co-routed and non co-routed LSPs of a bidirectional packet TE tunnel 有权
标题翻译：双向分组TE隧道的信令共路由和非共路由LSP
公开(公告)号：US09083553B2
公开(公告)日：2015-07-14
申请号：US14299912
申请日：2014-06-09
申请人： Cisco Technology, Inc.
发明人： Rakesh Gandhi , Muthurajah Sivabalan
IPC分类号： H04L12/46 , H04L12/913
CPC分类号： H04L47/724 , H04L12/4633 , H04L45/36 , H04L45/50 , H04L47/825
摘要： Particular embodiments may enable setup and signaling of co-routed and non co-routed label switched paths (LSPs) of a bidirectional packet traffic engineering (TE) tunnel in an unambiguous manner with respect to provisioning of the LSPs/tunnel. A head-end node may set up the bidirectional packet TE tunnel by computing a forward (and possibly a reverse) direction LSP, and then signal the bidirectional TE tunnel utilizing, e.g., extensions to an associated Resource Reservation Protocol (RSVP) signaling method. The extensions to the associated RSVP signaling method include a plurality of additional Association Types of an Extended Association object carried in a RSVP Path message transmitted by the head-end node to the tail-end node over the forward direction LSP, wherein the additional Association Types explicitly identify the provisioning of the forward and reverse direction LSPs as co-routed or non co-routed.
摘要翻译：具体实施例可以使得能够以相对于LSP /隧道的提供的明确方式建立和发送双向分组流量工程（TE）隧道的共路由和非共路由标签交换路径（LSP）。前端节点可以通过计算前向（可能是反向）LSP来建立双向分组TE隧道，然后利用例如关联的资源预留协议（RSVP）信令方法的扩展来向双向TE隧道发信号。相关RSVP信令方法的扩展包括由前端节点通过前向LSP发送到尾端节点的RSVP路径消息中携带的扩展关联对象的多个附加关联类型，其中附加关联类型明确地将前向和反向LSP的配置标识为共路由或非共路由。

6. 发明申请

US20150163114A1 NETWORK CONTROLLER FOR DELAY MEASUREMENT IN SDN AND RELATED DELAY MEASUREMENT SYSTEM AND DELAY MEASUREMENT METHOD 有权
标题翻译：用于SDN和相关延迟测量系统的延迟测量的网络控制器和延迟测量方法
公开(公告)号：US20150163114A1
公开(公告)日：2015-06-11
申请号：US14336182
申请日：2014-07-21
申请人： Industrial Technology Research Institute
发明人： Tai-Hua Hsiao , Wen-Hung Chang
IPC分类号： H04L12/26 , H04L12/721
CPC分类号： H04L43/0864 , H04L43/10 , H04L45/36 , H04L45/38 , H04L45/64
摘要： A network controller for delay measurement in SDN and related delay measurement system and delay measurement method are provided. A probe packet is used to record the transmission of the probe packet between the network controller and network switches, to calculate a transport delay time between the network switches and hop delay time between the network switches, to obtain the delay of each link in the transmission path, which helps in finding out a critical hop in the SDN transmission path. Through the delay measurement mechanism according to the present disclosure, the critical hop will become a reference based on which a network manager adjusts a network framework, or a basis taken by an SDN control system to select a path.
摘要翻译：提供了一种用于SDN中延迟测量的网络控制器及相关的延迟测量系统和延迟测量方法。探测包用于记录网络控制器和网络交换机之间的探测包的传输，计算网络交换机之间的传输延迟时间和网络交换机之间的跳时延迟时间，以获得传输中每个链路的延迟路径，有助于找出SDN传输路径中的关键跳。通过根据本公开的延迟测量机制，关键跳变将成为网络管理器调整网络框架或由SDN控制系统选择路径所采取的基准的参考。

7. 发明申请

US20140286341A1 SIGNALING CO-ROUTED AND NON CO-ROUTED LSPS OF A BIDIRECTIONAL PACKET TE TUNNEL 审中-公开
公开(公告)号：US20140286341A1
公开(公告)日：2014-09-25
申请号：US14299912
申请日：2014-06-09
申请人： Cisco Technology, Inc.
发明人： Rakesh Gandhi , Muthurajah Sivabalan
IPC分类号： H04L12/46 , H04L12/913
CPC分类号： H04L47/724 , H04L12/4633 , H04L45/36 , H04L45/50 , H04L47/825
摘要： Particular embodiments may enable setup and signaling of co-routed and non co-routed label switched paths (LSPs) of a bidirectional packet traffic engineering (TE) tunnel in an unambiguous manner with respect to provisioning of the LSPs/tunnel. A head-end node may set up the bidirectional packet TE tunnel by computing a forward (and possibly a reverse) direction LSP, and then signal the bidirectional TE tunnel utilizing, e.g., extensions to an associated Resource Reservation Protocol (RSVP) signaling method. The extensions to the associated RSVP signaling method include a plurality of additional Association Types of an Extended Association object carried in a RSVP Path message transmitted by the head-end node to the tail-end node over the forward direction LSP, wherein the additional Association Types explicitly identify the provisioning of the forward and reverse direction LSPs as co-routed or non co-routed.

8. 发明申请

US20140280464A1 INTERMEDIARY API FOR PROVIDING PRESENCE DATA TO REQUESTING CLIENTS 有权
标题翻译：用于提供存在数据以供客户要求的中间API
公开(公告)号：US20140280464A1
公开(公告)日：2014-09-18
申请号：US13797612
申请日：2013-03-12
申请人： MICROSOFT CORPORATION
发明人： Kurt K. De Ding , Ajay Soni , Stephane Taine
IPC分类号： H04L29/06
CPC分类号： H04L67/24 , H04L29/06197 , H04L45/36 , H04L65/1006 , H04L67/28 , H04L67/327
摘要： Technologies are generally described for providing an intermediary API for intercepting and processing subscribing requests to a communications server. An intermediary API may intercept a subscribing request from a local or PIC client to receive presence status data from a presentity such as a bot executed on the communications server. The intermediary API may be configured to provide the presence data to a PIC client without consuming the communications server registered subscription limit. The intermediary API may employ a server-supported protocol-specific processing language or module to intercept the subscribing requests, to determine if the request is targeted for one or more bots executed on the communications server, and to determine if the request is for presence data for one or more bots. The intermediary API may determine if the request is non-terminating, and if all criteria are met, may provide presence data to the requesting client.
摘要翻译：通常描述技术来提供用于拦截和处理对通信服务器的订阅请求的中间API。中间API可以截取来自本地或PIC客户端的订阅请求，以从诸如在通信服务器上执行的bot的呈现体接收存在状态数据。中间API可以被配置为在PIC客户端提供存在数据，而不消耗通信服务器注册的订阅限制。中介API可以采用服务器支持的协议特定处理语言或模块来拦截订阅请求，以确定该请求是针对在通信服务器上执行的一个或多个机器人，并且确定该请求是否用于存在数据一个或多个机器人。中介API可以确定请求是否是非终止的，并且如果满足所有标准，则可以向请求客户端提供存在数据。

9. 发明授权

US08811183B1 Methods and apparatus for multi-path flow control within a multi-stage switch fabric 有权
标题翻译：多级交换结构中多路径流量控制的方法和装置
公开(公告)号：US08811183B1
公开(公告)日：2014-08-19
申请号：US13252615
申请日：2011-10-04
申请人： Prashant Anand , Hardik Bhalala
发明人： Prashant Anand , Hardik Bhalala
IPC分类号： G01R31/08
CPC分类号： H04L47/6205 , H04L41/0631 , H04L41/0681 , H04L45/24 , H04L45/36 , H04L45/70 , H04L45/7453 , H04L47/11 , H04L47/12 , H04L47/122 , H04L47/127 , H04L47/25 , H04L47/26 , H04L49/10 , H04L49/101 , H04L49/109 , H04L49/1507 , H04L49/1515 , H04L49/25 , H04L49/251 , H04L49/253 , H04L49/254 , H04L49/505 , H04W28/02 , H04W28/0278 , H04W28/12
摘要： In some embodiments, an apparatus comprises a switch from a set of switches associated with a stage of a multi-stage switch fabric. The switch is configured to receive a data packet having a destination address of a destination device from a source device, and then store the data packet in a queue of the switch. The switch is configured to define a message based on the queue having an available capacity less than a threshold, and include a congestion root indicator in the message if the switch is a congestion root. The switch is then configured to send the message to the source device such that the source device sends another data packet having the destination address of the destination device to another switch from the set of switches and not to the previous switch if the message includes the congestion root indicator.
摘要翻译：在一些实施例中，装置包括从与多级交换结构的级相关联的一组交换机的交换机。交换机被配置为从源设备接收具有目的地设备的目的地地址的数据分组，然后将数据分组存储在交换机的队列中。交换机被配置为基于具有小于阈值的可用容量的队列来定义消息，并且如果交换机是拥塞根，则在消息中包括拥塞根指示符。然后将交换机配置为将消息发送到源设备，使得源设备将具有目的地设备的目的地地址的另一数据分组从该组交换机发送到另一交换机，而不是发送到先前交换机，如果该消息包括拥塞根指示器

10. 发明申请

US20140204804A1 Method For The Exchange Of Data Between Nodes Of A Server Cluster, And Server Cluster Implementing Said Method 有权
标题翻译：服务器群集节点和服务器群集实现所述方法之间数据交换的方法
公开(公告)号：US20140204804A1
公开(公告)日：2014-07-24
申请号：US14241436
申请日：2012-08-28
申请人： Georges Lecourtier , Alain Spir
发明人： Georges Lecourtier , Alain Spir
IPC分类号： H04L12/24 , H04L12/26
CPC分类号： H04L41/12 , H04L43/08 , H04L43/10 , H04L45/06 , H04L45/20 , H04L45/34 , H04L45/36 , H04L45/38
摘要： A method for the exchange of data between nodes of a server cluster comprising a plurality of nodes interconnected together by a geographic interconnection network comprising a plurality of transmission segments linking the nodes together, including sending by a sending node, data intended for at least one other node, or receiving node, transmitting the data using the geographic interconnection network, receiving the data by each receive node, supplying the data to each receiving node with information relating to the transmission segments of the geographic interconnection network traversed between the sending node and this receiving node on the transmission thereof.
摘要翻译：一种用于在服务器集群的节点之间交换数据的方法，包括由地理互连网络互连在一起的多个节点，所述地理互连网络包括将节点链接在一起的多个传输段，包括由发送节点发送用于至少一个其他的数据节点或接收节点，使用地理互连网络发送数据，由每个接收节点接收数据，向每个接收节点提供与发送节点和该接收之间穿过的地理互连网络的传输段有关的信息节点的传输。

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