公开(公告)号：US07023840B2

公开(公告)日：2006-04-04

申请号：US10059641

申请日：2002-01-28

申请人： Prasad N. Golla ,  Gerard Damm ,  John Blanton ,  Mei Yang ,  Dominique Verchere ,  Hakki Candan Cankaya ,  Yijun Xiong

发明人： Prasad N. Golla ,  Gerard Damm ,  John Blanton ,  Mei Yang ,  Dominique Verchere ,  Hakki Candan Cankaya ,  Yijun Xiong

IPC分类号： H04L12/56 ,  G06F13/00

CPC分类号： H04L49/254 ,  H04L49/101 ,  H04L49/205 ,  H04L49/3045 ,  H04L49/508

摘要： A scheduling system and methodology for use in a network switch element having multiserver, multiple-arbiter architecture. Ingress ports and egress ports coupled to the cross-connect fabric of the network element are provided with multiple ingress and egress arbiters, respectively, for effectuating an iterative arbitration strategy such as RGA or RG. Arbiter architectures include singe-arbiter-per-port; single-arbiter-per-server; multiple-arbiters-per-port; and multiple-arbiters-per-server arrangements, wherein the arbiters can be implemented using RRA, BTA, Flexible Ring, or any other arbiter technology. Depending on the iteration strategy, ingress arbiter architecture and egress arbiter architecture, a variety of iterative, multiserver-capable scheduling algorithms can be obtained, which scheduling algorithms can also be implemented in QoS-aware network nodes.

公开(公告)号：US07007123B2

公开(公告)日：2006-02-28

申请号：US10109423

申请日：2002-03-28

申请人： Prasad N. Golla ,  Gerard Damm ,  Timochin Ozugur ,  John Blanton ,  Dominique Verchere

发明人： Prasad N. Golla ,  Gerard Damm ,  Timochin Ozugur ,  John Blanton ,  Dominique Verchere

IPC分类号： G06F13/14

CPC分类号： H04L47/6215 ,  H04L47/50 ,  H04L47/623

摘要： A binary-tree-based arbitration system and methodology with attributes that approximate a Generalized Processor Sharing (GPS) scheme for rendering fairer service grants in an environment having a plurality of competing entities. Arbitration based on probabilistic control of arbiter nodes' behavior is set forth for alleviating the inherent unfairness of a binary tree arbiter (BTA). In one implementation, BTA flag direction probabilities are computed based on composite weighted functions that assign relative weights or priorities to such factors as queue sizes, queue ages, and service class parameters. Within this general framework, techniques for desynchronizing a binary tree's root node, shuffling techniques for mapping incoming service requests to the BTA's inputs, and multi-level embedded trees are described.

摘要翻译： 一种基于二进制树的仲裁系统和具有近似广义处理器共享（GPS）方案的属性的方法，用于在具有多个竞争实体的环境中呈现更公平的服务授权。 阐述了基于仲裁节点行为概率控制的仲裁，以减轻二叉树仲裁器（BTA）的固有不公平性。 在一个实现中，BTA标志方向概率是基于将相对权重或优先级分配给诸如队列大小，队列龄和服务类参数等因素的组合加权函数计算的。 在这个一般框架内，描述了用于使二叉树的根节点同步的技术，用于将传入服务请求映射到BTA的输入的混洗技术以及多级嵌入式树。

公开(公告)号：US20150081902A1

公开(公告)日：2015-03-19

申请号：US14388861

申请日：2013-04-10

申请人： Dominique Verchere ,  Gerard Damm

发明人： Dominique Verchere ,  Gerard Damm

IPC分类号： H04L29/08 ,  H04L12/24

CPC分类号： H04L67/148 ,  H04L41/0896 ,  H04L41/5051 ,  H04L41/5054 ,  H04L41/5077

摘要： Network service orchestrator Network service orchestrator operationally connected to a network management system, the network service orchestrator comprising a connectivity services database comprising information representing multiple connectivity services configured on a network managed by the network management system, the network service orchestrator further comprising input means for receiving service orders, processing means configured to process an orchestrator algorithm to select a set of connectivity services out of said multiple connectivity services based on said service orders, and a signal generator for generating and transmitting a signal to activate/deactivate the selected set of connectivity services on the network.

摘要翻译： 网络服务协调器网络服务协调器可操作地连接到网络管理系统，所述网络服务协调器包括连接服务数据库，所述连接服务数据库包括表示在由所述网络管理系统管理的网络上配置的多个连接性服务的信息，所述网络服务编排器还包括用于接收的输入装置 服务订单，处理装置，被配置为处理协调器算法以基于所述服务订单从所述多个连接服务中选择一组连接服务;以及信号发生器，用于生成和发送信号以激活/去激活所选择的一组连接服务 在网络上。

公开(公告)号：US07158510B1

公开(公告)日：2007-01-02

申请号：US10075176

申请日：2002-02-14

申请人： Prasad N. Golla ,  Gerard Damm ,  John Blanton ,  Dominique Verchere

发明人： Prasad N. Golla ,  Gerard Damm ,  John Blanton ,  Dominique Verchere

IPC分类号： H04L12/54

CPC分类号： H04L49/3045 ,  H04L49/254 ,  H04L49/3018

摘要： A look-up table (LUT)-based arbitration (LTA) system and methodology for use in a network switch element. Input control signals generated by ingress and egress entities associated with a cross-connect matrix of the network switch element are encoded into address information that is used for interrogating a storage structure. Pre-computed arbitration results based on a select arbiter scheme are stored into fields associated with the storage structure. When a particular input combination is applied with respect to an arbitration iteration, a selected arbitration result is obtained by querying the appropriate field, which is then decoded into a corresponding selected entity for the arbitration iteration.

摘要翻译： 一种基于查询表（LUT）的仲裁（LTA）系统和用于网络交换机元件的方法。 由与网络交换元件的交叉连接矩阵相关联的入口和出口实体生成的输入控制信号被编码成用于询问存储结构的地址信息。 基于选择仲裁方案的预先计算的仲裁结果被存储到与存储结构相关联的字段中。 当相对于仲裁迭代应用特定的输入组合时，通过查询适当的字段来获得选定的仲裁结果，该字段然后被解码成用于仲裁迭代的对应的选定实体。

公开(公告)号：US07298728B2

公开(公告)日：2007-11-20

申请号：US10328613

申请日：2002-12-23

申请人： Prasad N. Golla ,  John Blanton ,  Gerard Damm ,  Dominique Verchere ,  Céline Haardt ,  Farid Farahmand

发明人： Prasad N. Golla ,  John Blanton ,  Gerard Damm ,  Dominique Verchere ,  Céline Haardt ,  Farid Farahmand

IPC分类号： H04B7/212

CPC分类号： H04L47/10 ,  H04B7/2045 ,  H04B7/212 ,  H04L47/30 ,  H04L47/32 ,  H04L47/50 ,  H04L47/56

摘要： A scheduling system and method operable with a burst switching element wherein control information is provided to the switching element via a separate Burst Header that precedes data bursts on ingress data channels. In one embodiment, a series of scheduling determinations are made in a select order such that packet treatment (i.e., processing for transmission, buffering, or packet dropping) is optimized with respect to packet loss and available buffer space. In another embodiment, control information received in the Burst Headers is utilized to reserve output data channel bandwidth to future incoming data packets in a forward-looking scheduling mechanism.

摘要翻译： 一种可利用突发交换元件操作的调度系统和方法，其中通过在入口数据信道上的数据突发之前的独立突发头向控制信息提供给交换元件。 在一个实施例中，以选择顺序进行一系列调度确定，使得针对分组丢失和可用缓冲区空间优化分组处理（即，用于传输，缓冲或分组丢弃的处理）。 在另一个实施例中，利用在突发报头中接收的控制信息在前瞻调度机制中将未来输入数据分组的输出数据信道带宽保留。

公开(公告)号：US07898982B2

公开(公告)日：2011-03-01

申请号：US11468530

申请日：2006-08-30

申请人： Kamakshi Sridhar ,  David Elie-Dit-Cosaque ,  Gerard Damm

发明人： Kamakshi Sridhar ,  David Elie-Dit-Cosaque ,  Gerard Damm

IPC分类号： H04L12/28

CPC分类号： H04L12/4679 ,  H04L12/1886 ,  H04L29/12292 ,  H04L29/12839 ,  H04L45/16 ,  H04L61/2069 ,  H04L61/6022

摘要： A method and system for logical group endpoint discovery in a data communication network is disclosed. A network endpoint receives from a source a request identifying a logical group and determines whether a port associated with the endpoint is a member of the logical group. If a port associated with the endpoint is a member of the logical group, the endpoint transmits to the source a reply identifying the port and the logical group. The request may be multicast while the reply may be unicast. The logical group may be a VLAN or a multicast group. The source and endpoint are preferably 802.1ag maintenance endpoints. The request may include an IEEE 802.1ag continuity check multicast address as a destination address.

摘要翻译： 公开了一种数据通信网络中逻辑组端点发现的方法和系统。 网络端点从源接收标识逻辑组的请求，并确定与端点相关联的端口是否是逻辑组的成员。 如果与端点相关联的端口是逻辑组的成员，则端点向源发送标识端口和逻辑组的应答。 该请求可以是多播的，而应答可以是单播。 逻辑组可以是VLAN或组播组。 源和端点最好是802.1ag维护端点。 该请求可以包括IEEE 802.1ag连续性检查多播地址作为目的地址。

公开(公告)号：US08095640B2

公开(公告)日：2012-01-10

申请号：US10733393

申请日：2003-12-12

申请人： Pierrick Guingo ,  Vincent Mouilleron ,  Arnold Jansen ,  Gerard Damm

发明人： Pierrick Guingo ,  Vincent Mouilleron ,  Arnold Jansen ,  Gerard Damm

IPC分类号： G06F15/173

CPC分类号： H04L43/106 ,  H04L41/5003 ,  H04L41/5009 ,  H04L41/5029 ,  H04L43/026 ,  H04L43/0829 ,  H04L43/0864 ,  H04L43/087 ,  H04L43/10 ,  H04L43/16 ,  Y02D50/30

摘要： A virtual router network (VRN) for performing real-time flow measurements (RTFM) is provided. The VRN effectively reduces the number of traffic metering points required thereby simplifying the aggregation and exportation of flow records to a collector. The collector may be service manager in a network management system. The metering points, in a preferred embodiment, are at virtual interfaces (VI) which are edge nodes in VRN. One of the virtual interfaces is selected as a master virtual interface and act as a collector and distributor of flow related information. In one aspect of the invention the VRN is used to provide, non-invasively, per-flow delay monitoring in a communication system.

摘要翻译： 提供了用于执行实时流量测量（RTFM）的虚拟路由器网络（VRN）。 VRN有效地减少了所需的流量计量点数，从而简化了流量记录到收集器的汇总和导出。 收集器可以是网络管理系统中的服务管理器。 在优选实施例中，计量点位于作为VRN中的边缘节点的虚拟接口（VI）。 其中一个虚拟接口被选为主虚拟接口，并充当流相关信息的收集器和分发器。 在本发明的一个方面，VRN用于在通信系统中提供非侵入式的每流延迟监控。

公开(公告)号：US07865591B2

公开(公告)日：2011-01-04

申请号：US11986265

申请日：2007-11-20

申请人： Hakki Candan Cankaya ,  Gerard Damm ,  Kamakshi Sridhar ,  Sven Ooghe

发明人： Hakki Candan Cankaya ,  Gerard Damm ,  Kamakshi Sridhar ,  Sven Ooghe

IPC分类号： G06F15/173

CPC分类号： H04L61/2015

摘要： A computer-implemented method for facilitating DHCP diagnostic functionality comprises a plurality of operation. An operation is performed for identifying misconfigurations to a DHCP option configuration of a DHCP agent between a DHCP server and a client of the DHCP server. An operation is performed for confirming proper address concentration configuration with respect to the DHCP agent. An operation is performed for snooping on address assignments from the DHCP server to the client of the DHCP server to determine unauthorized ones of the address assignments.

摘要翻译： 用于促进DHCP诊断功能的计算机实现的方法包括多个操作。 执行DHCP服务器和DHCP服务器的客户端之间的DHCP代理的DHCP选项配置的错误配置操作。 执行操作以确定关于DHCP代理的适当地址浓度配置。 执行操作来窥探从DHCP服务器到DHCP服务器的客户端的地址分配，以确定未授权的地址分配。

公开(公告)号：US20090132696A1

公开(公告)日：2009-05-21

申请号：US11986265

申请日：2007-11-20

申请人： Hakki Candan Cankaya ,  Gerard Damm ,  Kamakshi Sridhar ,  Sven Ooghe

发明人： Hakki Candan Cankaya ,  Gerard Damm ,  Kamakshi Sridhar ,  Sven Ooghe

IPC分类号： G06F15/173

CPC分类号： H04L61/2015

摘要： A computer-implemented method for facilitating DHCP diagnostic functionality comprises a plurality of operation. An operation is performed for identifying misconfigurations to a DHCP option configuration of a DHCP agent between a DHCP server and a client of the DHCP server. An operation is performed for confirming proper address concentration configuration with respect to the DHCP agent. An operation is performed for snooping on address assignments from the DHCP server to the client of the DHCP server to determine unauthorized ones of the address assignments.

摘要翻译： 用于促进DHCP诊断功能的计算机实现的方法包括多个操作。 执行DHCP服务器和DHCP服务器的客户端之间的DHCP代理的DHCP选项配置的错误配置操作。 执行操作以确定关于DHCP代理的适当地址浓度配置。 执行操作来窥探从DHCP服务器到DHCP服务器的客户端的地址分配，以确定未授权的地址分配。

公开(公告)号：US20080049763A1

公开(公告)日：2008-02-28

申请号：US11466516

申请日：2006-08-23

申请人： Gerard Damm ,  Kamakshi Sridhar ,  John Coulter ,  Gino Dion

发明人： Gerard Damm ,  Kamakshi Sridhar ,  John Coulter ,  Gino Dion

IPC分类号： H04L12/56

CPC分类号： H04L45/22 ,  H04L12/4625 ,  H04L45/02 ,  H04L45/28 ,  H04L45/50

摘要： A bridge/router and method are described herein that are capable of avoiding packet replication at layer 2 where there is a failure in a network. In one embodiment, the bridge/router is informed about a fault which occurred within the network. Then, the bridge/router makes a determination about whether or not multiple LSPs would be used to flood/carry the same IP traffic out off a single port. If yes, the first bridge/router chooses one of the LSPs to carry the IP traffic out the single port and then prevents the IP traffic from being carried on the remaining LSP(s) out the single port which avoids the packet replication on a link which is associated with the single port. If no, then the first bridge/router allows the IP traffic to be carried on the LSPs out off more than one port.

摘要翻译： 这里描述了能够避免在网络中存在故障的层2处的分组复制的桥/路由器和方法。 在一个实施例中，桥接/路由器被通知在网络内发生的故障。 然后，桥/路由器确定是否将使用多个LSP来将单个端口上的相同IP流量进行泛洪/携带。 如果是，则第一个桥接器/路由器选择其中一个LSP将IP流量从单个端口携带，然后防止IP流量在单个端口上携带，从而避免链路上的数据包复制 它与单个端口相关联。 如果否，则第一个桥接器/路由器允许在多个端口上的LSP上携带IP流量。