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11. 发明授权

US08391163B2 Operating MPLS label switched paths and MPLS pseudowire in loopback mode 有权
标题翻译：在环回模式下运行MPLS标签交换路径和MPLS伪线
公开(公告)号：US08391163B2
公开(公告)日：2013-03-05
申请号：US12383366
申请日：2009-03-23
申请人： Sami Boutros , Muthurajah Sivabalan , David D. Ward , George Swallow , Carlos M. Pignataro
发明人： Sami Boutros , Muthurajah Sivabalan , David D. Ward , George Swallow , Carlos M. Pignataro
IPC分类号： H04J1/16
CPC分类号： H04L43/50 , H04L45/00 , H04L45/20 , H04L45/50 , H04L45/68
摘要： In one embodiment, an initiating maintenance end point (MEP) may transmit a lock message to lock a circuit traversing one or more maintenance intermediate points (MIPs) between the initiating MEP and an end MEP. The initiating MEP may then transmit an in-band packet containing a loopback request to a particular MIP along the circuit using a particular time-to-live (TTL) value in the packet to reach the particular MIP. Upon receiving the packet at the particular MIP, and in response to determining that the TTL has expired, the particular MIP inspects the packet to discover the loopback request, and correspondingly operates in a loopback mode.
摘要翻译：在一个实施例中，启动维护端点（MEP）可以发送锁定消息以锁定经过起始MEP和结束MEP之间的一个或多个维护中间点（MIP）的电路。然后，启动MEP可以使用分组中的特定生存时间（TTL）值将包含环回请求的带内分组沿着电路发送到特定的MIP，以达到特定的MIP。在接收到特定MIP的分组时，响应于确定TTL已经到期，特定MIP检查分组以发现环回请求，并相应地以环回模式工作。

12. 发明授权

US07539176B1 System and method for providing link, node and PG policy based routing in PNNI based ATM networks 有权
标题翻译：在基于PNNI的ATM网络中提供基于链路，节点和PG策略的路由的系统和方法
公开(公告)号：US07539176B1
公开(公告)日：2009-05-26
申请号：US10817253
申请日：2004-04-02
申请人： Mahesh Chellappa , Chandrasekar Krishnamurthy , Stephen Eugene Morrow , Carlos M. Pignataro , Krishna Sundaresan
发明人： Mahesh Chellappa , Chandrasekar Krishnamurthy , Stephen Eugene Morrow , Carlos M. Pignataro , Krishna Sundaresan
IPC分类号： H04L12/28
CPC分类号： H04L47/10 , H04L45/04 , H04L45/06 , H04L45/124
摘要： A system and method for providing link, node, and PG policy based routing in PNNI based ATM networks is disclosed. A computer implemented method signals and routes a call in the network. Upon detecting the call's arrival, its service request is accessed. Upon determining that the service request relates to an attribute of a link, a routing path is sought that conforms to the service request, as by accessing information relating to the routing path and comparing the information to the service request. A conforming routing path is selected, and the call is routed via that path. A computer implemented method advertises an attribute of links, nodes, policies, etc. Data relating to the route's attribute can be provided to a node as a GAT IE component of a PNNI signaling setup message for multi-peer group networks, and advertised using PTSEs within a peer group.
摘要翻译：公开了一种在基于PNNI的ATM网络中提供基于链路，节点和PG策略的路由的系统和方法。计算机实现的方法在网络中发信号并路由呼叫。在检测到呼叫到达时，访问其服务请求。在确定服务请求与链路的属性相关联时，通过访问与路由路径相关的信息并将该信息与服务请求进行比较，寻求符合服务请求的路由路径。选择合适的路由路径，并且通过该路径路由该呼叫。计算机实现的方法通告链路，节点，策略等的属性。与路由属性相关的数据可以作为多对等群组网络的PNNI信令建立消息的GAT IE组件提供给节点，并且使用PTSE 在同伴组内。

13. 发明申请

US20120327954A1 Packet Meta-Tagging Using Excess Payload 审中-公开
标题翻译：使用超量有效载荷的数据包元标记
公开(公告)号：US20120327954A1
公开(公告)日：2012-12-27
申请号：US13168322
申请日：2011-06-24
申请人： Andrei Iourtchenko , Carlos M. Pignataro , Daniel G. Wing
发明人： Andrei Iourtchenko , Carlos M. Pignataro , Daniel G. Wing
IPC分类号： H04J3/24
CPC分类号： H04L65/607 , H04L69/22 , H04L69/28 , H04L69/324
摘要： Packet meta-tagging using excess payload is described. In an implementation, a total packet length value specified in packet received at a network element is adjusted while preserving a data length value associated with a data portion of the packet to generate additional space in the packet to accommodate packet transmission meta-data. Packet-transmission meta-data can be inserted into the additional space created in the packet by the network element. In some implementations, the meta-data describes packet transmission characteristics of the packet. For example, the meta-data can be a timestamp corresponding to the time at which the packet was received by the network element. The meta-data can be an identifier corresponding to the network element that received the packet.
摘要翻译：描述使用多余有效载荷的数据包元标记。在实现中，调整在网元处接收到的分组中指定的总分组长度值，同时保留与分组的数据部分相关联的数据长度值，以在分组中生成附加空间以适应分组传输元数据。分组传输元数据可以被网元插入分组中创建的附加空间。在一些实现中，元数据描述了分组的分组传输特性。例如，元数据可以是对应于网络元件接收到分组的时间的时间戳。元数据可以是对应于接收到分组的网元的标识符。

14. 发明申请

US20110055637A1 ADAPTIVELY COLLECTING NETWORK EVENT FORENSIC DATA 有权
标题翻译：自适应收集网络活动审核数据
公开(公告)号：US20110055637A1
公开(公告)日：2011-03-03
申请号：US12551143
申请日：2009-08-31
申请人： L. Alexander Clemm , Carlos M. Pignataro , Rodney S. Dunn , Steve Chen-Lin Chang , Shyyunn Sheran Lin
发明人： L. Alexander Clemm , Carlos M. Pignataro , Rodney S. Dunn , Steve Chen-Lin Chang , Shyyunn Sheran Lin
IPC分类号： G06F11/34 , G06F15/16
CPC分类号： H04L41/0856 , G06F11/3495 , G06F2201/86 , H04L41/0816 , H04L41/0853
摘要： In an embodiment, a data processing system comprises a repository configured to store a plurality of event message definitions for error messages, syslog messages, or other notification messages that may be emitted by one or more managed network elements; event annotation logic coupled to the data repository and configured to receive and store one or more annotations to each of the event message definitions, wherein each of the annotations specifies event context information to be collected in the managed network elements when an associated event message occurs; event forensics definitions generator logic coupled to the event annotation logic and configured to generate an event forensics definitions file capable of interpretation by one or more managed network elements and comprising event type identifiers and context information identifiers for context information to be collected, and configured to cause distributing the event forensics definitions file to the one or more managed network elements.
摘要翻译：在一个实施例中，数据处理系统包括存储库，其被配置为存储用于错误消息，系统日志消息或可由一个或多个被管理网元发出的其他通知消息的多个事件消息定义; 事件注释逻辑，其耦合到所述数据存储库并且被配置为接收并存储每个所述事件消息定义的一个或多个注释，其中每个所述注释指定在相关联的事件消息发生时在所述被管理网元中收集的事件上下文信息; 事件取证定义生成器逻辑，其耦合到所述事件注释逻辑，并且被配置为生成能够被一个或多个受管网络元素解释的事件取证定义文件，并且包括要收集的上下文信息的事件类型标识符和上下文信息标识符，并且被配置为导致将事件取证定义文件分发到一个或多个受管网络元素。

15. 发明申请

US20090034533A1 SYSTEM AND METHOD FOR PROVIDING LINK, NODE AND PG POLICY BASED ROUTING IN PNNI BASED ATM NETWORKS 审中-公开
标题翻译：基于PNNI的ATM网络提供链路，节点和PG策略路由的系统和方法
公开(公告)号：US20090034533A1
公开(公告)日：2009-02-05
申请号：US12247985
申请日：2008-10-08
申请人： Mahesh Chellappa , Chandrasekar Krishnamurthy , Stephen Eugene Morrow , Carlos M. Pignataro , krishna Sundaresan
发明人： Mahesh Chellappa , Chandrasekar Krishnamurthy , Stephen Eugene Morrow , Carlos M. Pignataro , krishna Sundaresan
IPC分类号： H04L12/56
CPC分类号： H04L47/10 , H04L45/04 , H04L45/06 , H04L45/124
摘要： A system and method for providing link, node, and PG policy based routing in PNNI based ATM networks is disclosed. A computer implemented method signals and routes a call in the network. Upon detecting the call's arrival, its service request is accessed. Upon determining that the service request relates to an attribute of a link, a routing path is sought that conforms to the service request, as by accessing information relating to the routing path and comparing the information to the service request. A conforming routing path is selected, and the call is routed via that path. A computer implemented method advertises an attribute of links, nodes, policies, etc. Data relating to the route's attribute can be provided to a node as a GAT IE component of a PNNI signaling setup message for multi-peer group networks, and advertised using PTSEs within a peer group.
摘要翻译：公开了一种在基于PNNI的ATM网络中提供基于链路，节点和PG策略的路由的系统和方法。计算机实现的方法在网络中发信号并路由呼叫。在检测到呼叫到达时，访问其服务请求。在确定服务请求与链路的属性相关联时，通过访问与路由路径相关的信息并将该信息与服务请求进行比较，寻求符合服务请求的路由路径。选择合适的路由路径，并且通过该路径路由该呼叫。计算机实现的方法通告链路，节点，策略等的属性。与路由属性相关的数据可以作为多对等群组网络的PNNI信令建立消息的GAT IE组件提供给节点，并且使用PTSE 在同伴组内。

16. 发明申请

US20130114462A1 Sub-Topology Discovery for Operating Hybrid Solutions 有权
标题翻译：操作混合解决方案的子拓扑发现
公开(公告)号：US20130114462A1
公开(公告)日：2013-05-09
申请号：US13289330
申请日：2011-11-04
申请人： Carlos M. Pignataro , Rajesh Kumar , Marc Holloman
发明人： Carlos M. Pignataro , Rajesh Kumar , Marc Holloman
IPC分类号： H04L12/28
CPC分类号： H04L41/145 , H04L41/0856 , H04L41/12 , H04L41/147 , H04L41/22 , H04L45/02
摘要： Network topology information may be determined for a plurality of network devices on a network. System identifier information may then be determined for each of the plurality of network devices on the network. The system identifier information may be a list of network solutions that each network device actually or potentially belongs to. The system may then flag the system identifier information to indicate whether each solution is an actual or a potential solution.
摘要翻译：可以为网络上的多个网络设备确定网络拓扑信息。然后可以为网络上的多个网络设备中的每一个确定系统标识符信息。系统标识符信息可以是每个网络设备实际上或可能属于的网络解决方案的列表。系统然后可以标记系统标识符信息以指示每个解决方案是实际的还是潜在的解决方案。

17. 发明申请

US20120063314A1 UNIVERSAL LOAD-BALANCING TUNNEL ENCAPSULATION 有权
标题翻译：通用负载平衡隧道封装
公开(公告)号：US20120063314A1
公开(公告)日：2012-03-15
申请号：US12881238
申请日：2010-09-14
申请人： Carlos M. Pignataro , Clarence Filsfils , Pradosh Mohapatra
发明人： Carlos M. Pignataro , Clarence Filsfils , Pradosh Mohapatra
IPC分类号： H04L12/26 , H04L12/28
CPC分类号： H04L12/4633 , H04L45/00
摘要： In one embodiment, packets received at head-end nodes in a computer network may have a payload and protocol ID of an original protocol of the packet. To allow load balancing across the network, the head-end node may convert the protocol ID to indicate a UDP packet, and may insert a UDP shim header into the packet having a load balance ID, at least one port ID of a destination tail-end node of the packet, and an indication of the original protocol ID. The head-end node may transmit the converted UDP packet toward the tail-end node as part of a load-balanced UDP flow based on the load balance ID. Tail-end nodes may receive UDP packets, and determine whether they are converted UDP packets. If so, the original protocol of the packet may be determined, the UDP header may be removed, and the packet may be processed according to the original protocol.
摘要翻译：在一个实施例中，在计算机网络中的头端节点处接收的分组可以具有分组的原始协议的有效载荷和协议ID。为了允许跨网络的负载平衡，前端节点可以将协议ID转换为指示UDP分组，并且可以将UDP垫片头部插入到具有负载均衡ID的分组中，至少一个目的地尾部的端口ID，分组的终端节点，以及原始协议ID的指示。基于负载平衡ID，头端节点可以将转换的UDP分组作为负载平衡UDP流的一部分向尾端节点发送。尾端节点可以接收UDP分组，并确定它们是否是转换的UDP分组。如果是这样，则可以确定分组的原始协议，可以去除UDP报头，并且可以根据原始协议来处理分组。

18. 发明授权

US07602726B1 Method and system for optimizing link aggregation usage during failures 有权
标题翻译：在故障期间优化链路聚合使用的方法和系统
公开(公告)号：US07602726B1
公开(公告)日：2009-10-13
申请号：US10639151
申请日：2003-08-11
申请人： Krishna Sundaresan , Mahesh Chellappa , Chandrasekar Krishnamurthy , Carlos M. Pignataro
发明人： Krishna Sundaresan , Mahesh Chellappa , Chandrasekar Krishnamurthy , Carlos M. Pignataro
IPC分类号： H04L12/28
CPC分类号： H04L45/125 , H04L45/10 , H04L45/22 , H04L45/245 , H04L45/28 , H04L45/42 , H04L2012/5624 , H04L2012/5627 , Y02D50/30
摘要： A method and system for optimizing link aggregation usage during failures is disclosed. The method and system are deployed in a network having a data plane in which data traffic flows between nodes coupled by a link formed by an aggregation of a number of individual connections (e.g., an IMA comprising a plurality of T1 or E1 lines, MPLS transport LSPs, ATM VPCs, etc.) and a control plane for controlling data traffic. The method includes communicating a bandwidth change on the link corresponding to the failure to the control plane. Flapping of the link is deterred. A component of the traffic is released based on a configured policy.
摘要翻译：公开了一种在故障期间优化链路聚合使用的方法和系统。该方法和系统部署在具有数据平面的网络中，其中数据业务在由多个单独连接的聚合形成的链路（例如，包括多个T1或E1线路的IMA，MPLS传输 LSP，ATM VPC等）和用于控制数据业务的控制平面。该方法包括将与故障相对应的链路上的带宽变化传送到控制平面。震动连线的震荡。基于配置的策略释放流量的组件。

19. 发明申请

US20090135728A1 USER DATAGRAM PROTOCOL TRACEROUTE PROBE EXTENSION 有权
标题翻译：用户数据协议协议探索扩展
公开(公告)号：US20090135728A1
公开(公告)日：2009-05-28
申请号：US11946673
申请日：2007-11-28
申请人： Naiming Shen , Enke Chen , Carlos M. Pignataro , Rajiv Asati
发明人： Naiming Shen , Enke Chen , Carlos M. Pignataro , Rajiv Asati
IPC分类号： H04L12/26
CPC分类号： H04L43/12 , H04L41/0853 , H04L41/12
摘要： The embodiments described herein provide methods and apparatuses for implementing a User Datagram Protocol traceroute probe extension. In an example embodiment, a request to transmit a User Datagram Protocol (UDP) packet to a remote destination is received. A probe header and a probe data element is then stored in a data field of the UDP packet. The UDP packet is then transmitted toward the remote destination. In an example embodiment, a User Datagram Protocol (UDP) packet is received and it is determined whether the UDP packet includes a probe data structure. When the determination is affirmative, the probe data structure is processed.
摘要翻译：本文描述的实施例提供了用于实现用户数据报协议跟踪路由探测扩展的方法和装置。在示例实施例中，接收向远程目的地发送用户数据报协议（UDP）分组的请求。然后将探测头和探测数据元素存储在UDP分组的数据字段中。然后将UDP分组发送到远程目的地。在示例实施例中，接收到用户数据报协议（UDP）分组，并且确定UDP分组是否包括探测数据结构。当确定为肯定时，处理探测数据结构。

20. 发明申请

US20140096197A1 INSTANT MESSAGING VIRTUAL PRIVATE NETWORKS 有权
标题翻译：即时消息虚拟私人网络
公开(公告)号：US20140096197A1
公开(公告)日：2014-04-03
申请号：US13630143
申请日：2012-09-28
申请人： Carlos M. Pignataro , Gonzalo A. Salgueiro , Joseph M. Clarke
发明人： Carlos M. Pignataro , Gonzalo A. Salgueiro , Joseph M. Clarke
IPC分类号： G06F21/00 , G06F15/16
CPC分类号： H04L63/0272 , H04L12/4641 , H04L51/04
摘要： According to one embodiment, an apparatus may receive a virtual private network (VPN) establishment request communicated over an instant messenger protocol. The apparatus may negotiate a communication tunnel in response to receiving the VPN establishment request and receive a datagram through the communication tunnel.
摘要翻译：根据一个实施例，设备可以接收通过即时消息协议传送的虚拟专用网络（VPN）建立请求。响应于接收到VPN建立请求并通过通信隧道接收数据报，设备可以协商通信隧道。

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