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11. 发明授权

US07283529B2 Method and system for supporting a dedicated label switched path for a virtual private network over a label switched communication network 有权
标题翻译：用于在标签交换通信网络上支持用于虚拟专用网络的专用标签交换路径的方法和系统
公开(公告)号：US07283529B2
公开(公告)日：2007-10-16
申请号：US10383973
申请日：2003-03-07
申请人： Claude Basso , Brahmanand K. Gorti , Natarajan Vaidhyanathan , Colin B. Verrilli
发明人： Claude Basso , Brahmanand K. Gorti , Natarajan Vaidhyanathan , Colin B. Verrilli
IPC分类号： H04L12/28 , H04L12/56 , G06F15/173
CPC分类号： H04L45/54 , H04L12/4641 , H04L45/50
摘要： A system and method for transmitting data from a first site to a second site over a shared Multi-Protocol Label Switched (MPLS) network comprising a plurality of routers, including an ingress router in communication with the first site and an egress router in communication with the second site, includes configuring a plurality of label switching paths between the ingress router and the egress router over a plurality of label switching devices. The method further includes performing a first lookup on one of at least one virtual routing and forwarding (VRF) table stored in the ingress router, whereby the first lookup identifies one routing table from a plurality of routing tables stored in the ingress router, each routing table being associated with one of the plurality of label switched paths, and performing a second lookup on the one routing table, wherein the routing table defines the associated label switched path between the ingress router and the egress router for a virtual private network (VPN) between the first site and the second site.
摘要翻译：一种用于通过共享的多协议标签交换（MPLS）网络从第一站点传送数据到第二站点的系统和方法，包括多个路由器，包括与第一站点通信的入口路由器和与第一站点通信的出口路由器第二站点包括通过多个标签交换设备在入口路由器和出口路由器之间配置多个标签交换路径。该方法还包括对存储在入口路由器中的至少一个虚拟路由和转发（VRF）表中的一个执行第一查找，由此第一查找从存储在入口路由器中的多个路由表中识别一个路由表，每个路由表与多个标签交换路径中的一个相关联，并且在一个路由表上执行第二查找，其中该路由表定义入口路由器与用于虚拟专用网（VPN）的出口路由器之间的关联标签交换路径，在第一个站点和第二个站点之间。

12. 发明授权

US07050940B2 Method and system for maintaining and examining timers for network connections 失效
标题翻译：用于维护和检查网络连接的定时器的方法和系统
公开(公告)号：US07050940B2
公开(公告)日：2006-05-23
申请号：US10802235
申请日：2004-03-17
申请人： Claude Basso , Richard J. Blasiak , Philippe Damon , Laurent Frelechoux , Brahmanand K. Gorti , Bernard Metzler , Bay V. Nguyen , Natarajan Vaidhyanathan , Colin B. Verrilli
发明人： Claude Basso , Richard J. Blasiak , Philippe Damon , Laurent Frelechoux , Brahmanand K. Gorti , Bernard Metzler , Bay V. Nguyen , Natarajan Vaidhyanathan , Colin B. Verrilli
IPC分类号： G06F15/00
CPC分类号： H04L69/28
摘要： System and method for maintenance and examination of timers for a computer system having connections in a networking system. Timer values in a connection table each indicate a timeout for a timer for a connection, where each connection has multiple timers, and one of the timer values is written to a global timer array for each connection such that the global timer array can be scanned to determine when timeouts occur for active connections. Sparse restart of a timer includes restarting the timer if data is communicated with a connected computer before the timeout occurs and after a predetermined time interval after timer start, and not restarting the timer if data is communicated before the timeout occurs and within the predetermined interval after timer start.
摘要翻译：用于维护和检查具有网络系统中的连接的计算机系统的定时器的系统和方法。连接表中的定时器值各自表示连接的定时器的超时，其中每个连接具有多个定时器，并且其中一个定时器值被写入到每个连接的全局定时器阵列，以便可以扫描全局定时器阵列确定活动连接的超时时间。定时器的稀疏重新启动包括重新启动定时器，如果数据在超时发生之前与连接的计算机通信，并且在定时器启动之后的预定时间间隔之后重新启动，并且如果在超时发生之前传输数据并且在超时之后的预定时间间隔内，则不重新启动定时器定时器启动。

13. 发明授权

US09088594B2 Providing to a parser and processors in a network processor access to an external coprocessor 有权
标题翻译：向网络处理器中的解析器和处理器提供对外部协处理器的访问
公开(公告)号：US09088594B2
公开(公告)日：2015-07-21
申请号：US13365679
申请日：2012-02-03
申请人： Claude Basso , Jean L. Calvignac , Chih-jen Chang , Philippe Damon , Natarajan Vaidhyanathan , Fabrice J. Verplanken , Colin B. Verrilli
发明人： Claude Basso , Jean L. Calvignac , Chih-jen Chang , Philippe Damon , Natarajan Vaidhyanathan , Fabrice J. Verplanken , Colin B. Verrilli
IPC分类号： G06F9/30 , H04L29/06
CPC分类号： H04L69/12
摘要： A mechanism is provided for sharing a communication used by a parser (parser path) in a network adapter of a network processor for sending requests for a process to be executed by an external coprocessor. The parser path is shared by processors of the network processor (software path) to send requests to the external processor. The mechanism uses for the software path a request mailbox comprising a control address and a data field accessed by MMIO for sending two types of messages, one message type to read or write resources and one message type to trigger an external process in the coprocessor and a response mailbox for receiving response from the external coprocessor comprising a data field and a flag field. The other processors of the network poll the flag until set and get the coprocessor result in the data field.
摘要翻译：提供了一种用于共享由网络处理器的网络适配器中的解析器（解析器路径）使用的通信的机制，用于发送对要由外部协处理器执行的进程的请求。解析器路径由网络处理器（软件路径）的处理器共享，以将请求发送到外部处理器。该机制用于软件路径，包括由MMIO访问的控制地址和数据字段的请求邮箱，用于发送两种类型的消息，一种用于读取或写入资源的消息类型和一个消息类型以触发协处理器中的外部进程，用于从包括数据字段和标志字段的外部协处理器接收响应的响应邮箱。网络的其他处理器轮询该标志直到设置，并获得协处理器结果的数据字段。

14. 发明申请

US20140082176A1 USING SPECIAL-CASE HARDWARE UNITS FOR FACILITATING ACCESS CONTROL LISTS ON A NETWORKING ELEMENT 有权
标题翻译：使用特殊情况硬件单元，实现对网络元素的访问控制列表
公开(公告)号：US20140082176A1
公开(公告)日：2014-03-20
申请号：US13616201
申请日：2012-09-14
申请人： Claude Basso , Natarajan Vaidhyanathan , Colin B. Verrilli
发明人： Claude Basso , Natarajan Vaidhyanathan , Colin B. Verrilli
IPC分类号： G06F15/173
CPC分类号： H04L45/7457 , G06F15/167 , G06F17/30982 , H04L63/101
摘要： Access control lists (ACLs) include one or more rules that each define a condition and one or more actions to be performed if the condition is satisfied. In one embodiment, the conditions are stored on a ternary content-addressable memory (TCAM), which receives a portion of network traffic, such as a frame header, and compares different portions of the header to entries in the TCAM. If the frame header satisfies the condition, the TCAM reports the match to other elements in the ACL. For certain conditions, the TCAM may divide the condition into a plurality of sub-conditions which are each stored in a row of the TCAM. To efficiently use the limited space in TCAM, the networking element may include one or more comparator units which check for special-case conditions. The comparator units may be used in lieu of the TCAM to determine whether the condition is satisfied.
摘要翻译：访问控制列表（ACL）包括一个或多个规则，每个规则定义条件和满足条件时要执行的一个或多个操作。在一个实施例中，条件存储在三元可内容寻址存储器（TCAM）上，该内容可寻址存储器（TCAM）接收网络业务的一部分，例如帧头，并且将头部的不同部分与TCAM中的条目进行比较。如果帧头满足条件，则TCAM报告与ACL中其他元素的匹配。对于某些条件，TCAM可以将条件划分为多个子条件，这些子条件各自存储在一行TCAM中。为了有效地使用TCAM中的有限空间，网络元件可以包括一个或多个比较器单元，用于检查特殊情况。可以使用比较器单元代替TCAM来确定条件是否满足。

15. 发明申请

US20120204002A1 Providing to a Parser and Processors in a Network Processor Access to an External Coprocessor 有权
标题翻译：提供给网络处理器中的解析器和处理器访问外部协处理器
公开(公告)号：US20120204002A1
公开(公告)日：2012-08-09
申请号：US13365679
申请日：2012-02-03
申请人： Claude Basso , Jean L. Calvignac , Chih-jen Chang , Philippe Damon , Natarajan Vaidhyanathan , Fabrice J. Verplanken , Colin B. Verrilli
发明人： Claude Basso , Jean L. Calvignac , Chih-jen Chang , Philippe Damon , Natarajan Vaidhyanathan , Fabrice J. Verplanken , Colin B. Verrilli
IPC分类号： G06F15/76 , G06F9/06
CPC分类号： H04L69/12
摘要： A mechanism is provided for sharing a communication used by a parser (parser path) in a network adapter of a network processor for sending requests for a process to be executed by an external coprocessor. The parser path is shared by processors of the network processor (software path) to send requests to the external processor. The mechanism uses for the software path a request mailbox comprising a control address and a data field accessed by MMIO for sending two types of messages, one message type to read or write resources and one message type to trigger an external process in the coprocessor and a response mailbox for receiving response from the external coprocessor comprising a data field and a flag field. The other processors of the network poll the flag until set and get the coprocessor result in the data field.
摘要翻译：提供了一种用于共享由网络处理器的网络适配器中的解析器（解析器路径）使用的通信的机制，用于发送对要由外部协处理器执行的进程的请求。解析器路径由网络处理器（软件路径）的处理器共享，以将请求发送到外部处理器。该机制用于软件路径，包括由MMIO访问的控制地址和数据字段的请求邮箱，用于发送两种类型的消息，一种用于读取或写入资源的消息类型和一个消息类型以触发协处理器中的外部进程，用于从包括数据字段和标志字段的外部协处理器接收响应的响应邮箱。网络的其他处理器轮询该标志直到设置，并获得协处理器结果的数据字段。

16. 发明授权

US09571502B2 Priority resolution for access control list policies in a networking device 有权
标题翻译：网络设备中访问控制列表策略的优先级分辨率
公开(公告)号：US09571502B2
公开(公告)日：2017-02-14
申请号：US13616256
申请日：2012-09-14
申请人： Claude Basso , Natarajan Vaidhyanathan , Colin B. Verrilli
发明人： Claude Basso , Natarajan Vaidhyanathan , Colin B. Verrilli
IPC分类号： G06F15/173 , H04L29/06 , H04L12/00
CPC分类号： H04L63/101 , H04L12/00 , H04L29/06823
摘要： Access control lists (ACLs) permit network administrators to manage network traffic flowing through a networking element to optimize network security, performance, quality of service (QoS), and the like. If a networking element has multiple ACLs directed towards different types of network optimization, each ACL may return a separate action set that identifies one or more actions the networking element should perform based on a received frame. In some cases, these action sets may conflict. To resolve the conflicts, a networking element may include resolution logic that selects one of the conflicting actions based on a predefined precedence value assigned to each action in an action set. By comparing the different precedence values, the resolution logic generates a new action set based on the actions with the highest precedence value.
摘要翻译：访问控制列表（ACL）允许网络管理员管理流经网络元件的网络流量，以优化网络安全性，性能，服务质量（QoS）等。如果网络元件具有针对不同类型的网络优化的多个ACL，则每个ACL可以返回单独的动作集合，其识别基于接收到的帧的网络元件应该执行的一个或多个动作。在某些情况下，这些操作集可能会发生冲突。为了解决冲突，网络元件可以包括分辨率逻辑，其基于分配给动作集中的每个动作的预定义优先级值来选择冲突动作之一。通过比较不同的优先级值，分辨率逻辑基于具有最高优先级值的动作生成新的动作集。

17. 发明授权

US08942095B2 Identification of QoS classification based on packet attributes 有权
标题翻译：基于分组属性的QoS分类识别
公开(公告)号：US08942095B2
公开(公告)日：2015-01-27
申请号：US13302489
申请日：2011-11-22
申请人： Francois Abel , Claude Basso , Jean L. Calvignac , Natarajan Vaidhyanathan , Fabrice Jean Verplanken , Colin B. Verrilli
发明人： Francois Abel , Claude Basso , Jean L. Calvignac , Natarajan Vaidhyanathan , Fabrice Jean Verplanken , Colin B. Verrilli
IPC分类号： H04L12/54 , H04L12/851 , H04L29/06
CPC分类号： H04L47/2441 , H04L69/22
摘要： A method, a system, and a computer program product is disclosed for identifying a quality of service (QoS) classification of a packet in a network by a network processor. The method comprising: providing a table wherein a priority value with a maximum of N values is used as an index into the table to retrieve a QoS classification having a maximum of M values with M less than N; receiving a data packet in a stream of data packets; extracting at least two priority indicator values from the packet; converting the at least two priority indicator values into a priority value; utilizing the priority value as an index into the table; extracting the entry in the table corresponding to the priority value as the QoS classification of the packet; and utilizing the QoS classification for subsequent processing of the data packet.
摘要翻译：公开了一种方法，系统和计算机程序产品，用于通过网络处理器来识别网络中的分组的服务质量（QoS）分类。该方法包括：提供一个表，其中将具有最大N个值的优先级值用作表中的索引以检索具有M小于N的最大M个值的QoS分类; 在数据包流中接收数据包; 从分组中提取至少两个优先级指示符值; 将所述至少两个优先级指示符值转换为优先级值; 利用优先级值作为表中的索引; 提取对应于优先级值的表中的条目作为分组的QoS分类; 并利用QoS分类来对数据分组进行后续处理。

18. 发明申请

US20140082168A1 PRIORITY RESOLUTION FOR ACCESS CONTROL LIST POLICIES IN A NETWORKING DEVICE 有权
标题翻译：网络设备访问控制列表策略的优先解决方案
公开(公告)号：US20140082168A1
公开(公告)日：2014-03-20
申请号：US13616256
申请日：2012-09-14
申请人： Claude Basso , Natarajan Vaidhyanathan , Colin B. Verrilli
发明人： Claude Basso , Natarajan Vaidhyanathan , Colin B. Verrilli
IPC分类号： G06F15/173
CPC分类号： H04L63/101 , H04L12/00 , H04L29/06823
摘要： Access control lists (ACLs) permit network administrators to manage network traffic flowing through a networking element to optimize network security, performance, quality of service (QoS), and the like. If a networking element has multiple ACLs directed towards different types of network optimization, each ACL may return a separate action set that identifies one or more actions the networking element should perform based on a received frame. In some cases, these action sets may conflict. To resolve the conflicts, a networking element may include resolution logic that selects one of the conflicting actions based on a predefined precedence value assigned to each action in an action set. By comparing the different precedence values, the resolution logic generates a new action set based on the actions with the highest precedence value.
摘要翻译：访问控制列表（ACL）允许网络管理员管理流经网络元件的网络流量，以优化网络安全性，性能，服务质量（QoS）等。如果网络元件具有针对不同类型的网络优化的多个ACL，则每个ACL可以返回单独的动作集合，其识别基于接收到的帧的网络元件应该执行的一个或多个动作。在某些情况下，这些操作集可能会发生冲突。为了解决冲突，网络元件可以包括分辨率逻辑，其基于分配给动作集中的每个动作的预定义优先级值来选择冲突动作之一。通过比较不同的优先级值，分辨率逻辑基于具有最高优先级值的动作生成新的动作集。

19. 发明申请

US20130308653A1 Techniques for Connecting an External Network Coprocessor to a Network Processor Packet Parser 有权
标题翻译：将外部网络协处理器连接到网络处理器数据包解析器的技术
公开(公告)号：US20130308653A1
公开(公告)日：2013-11-21
申请号：US13884664
申请日：2011-12-19
申请人： Claude Basso , Jean L. Calvignac , Chih-Jen Chang , Damon Philippe , Natarajan Vaidhyanathan , Colin B. Verrilli , Fabrice Jean Verplanken
发明人： Claude Basso , Jean L. Calvignac , Chih-Jen Chang , Damon Philippe , Natarajan Vaidhyanathan , Colin B. Verrilli , Fabrice Jean Verplanken
IPC分类号： H04L29/06
CPC分类号： H04L29/0653 , G06F9/3877 , G06F9/544 , G06F13/385 , G06F15/163 , H04L69/22
摘要： A network processor includes first communication protocol ports that each support ‘M’ minimum size packet data path traffic on ‘N’ lanes at ‘S’ Gigabits per second (Gbps) and traffic with different communication protocol units on ‘n’ additional lanes at ‘s’ Gbps. The first communication protocol ports support access to an external coprocessor using parsing logic located in each of the first communication protocol ports. The parsing logic, during a parsing period, is configured to send a request to the external coprocessor at reception of a ‘M’ size packet and to receive a response from the external coprocessor. The parsing logic sends a request maximum ‘m’ size byte word to the external coprocessor on one of the additional lanes and receives a response maximum ‘m’ size byte word from the external coprocessor on the one of the additional lanes while complying with the equation N×S/M=
摘要翻译：网络处理器包括第一通信协议端口，每个端口以“S”千兆位/秒（Gbps）在“N”通道上支持“M”个最小尺寸分组数据路径业务，并且在“n”个附加车道上以不同的通信协议单元的流量“ s Gbps 第一通信协议端口支持使用位于每个第一通信协议端口中的解析逻辑来访问外部协处理器。解析逻辑在解析周期期间被配置为在接收到“M”大小的分组时向外部协处理器发送请求并且从外部协处理器接收响应。解析逻辑在附加通道之一上向外部协处理器发送请求最大“m”字节字，并在附加通道之一上从外部协处理器接收响应最大“m”字节字，同时遵循等式 N×S / M =

20. 发明授权

US08576864B2 Host ethernet adapter for handling both endpoint and network node communications 失效
标题翻译：主机以太网适配器，用于处理端点和网络节点通信
公开(公告)号：US08576864B2
公开(公告)日：2013-11-05
申请号：US13011663
申请日：2011-01-21
申请人： Claude Basso , Jean L. Calvignac , Chih-jen Chang , Philippe Damon , Natarajan Vaidhyanathan , Fabrice J. Verplanken , Colin B. Verrilli
发明人： Claude Basso , Jean L. Calvignac , Chih-jen Chang , Philippe Damon , Natarajan Vaidhyanathan , Fabrice J. Verplanken , Colin B. Verrilli
IPC分类号： H04L12/28 , H04J1/16
CPC分类号： G06F15/1735
摘要： A host Ethernet adapter (HEA) and method of managing network communications is provided. The HEA includes a host interface configured for communication with a multi-core processor over a processor bus. The host interface comprises a receive processing element including a receive processor, a receive buffer and a scheduler for dispatching packets from the receive buffer to the receive processor; a send processing element including a send processor and a send buffer; and a completion queue scheduler (CQS) for dispatching completion queue elements (CQE) from the head of the completion queue (CQ) to threads of the multi-core processor in a network node mode. The method comprises operatively coupling an Ethernet adapter to a multi-core processor system via a processor bus, selectively assigning a first plurality of packets to a first queue pair for servicing in an endpoint mode, running a device driver on the multi-core processing system, the device driver controlling the servicing of the first queue pair by dispatching the first plurality of packets to only one processor core of the multi-core processor system, selectively assigning a second plurality of packets to a second queue pair for servicing in a network node mode; and the Ethernet adapter controlling the servicing of the second queue pair by dispatching the second plurality of packets to multiple processor threads.
摘要翻译：提供主机以太网适配器（HEA）和管理网络通信的方法。 HEA包括被配置为通过处理器总线与多核处理器进行通信的主机接口。所述主机接口包括接收处理元件，所述接收处理元件包括接收处理器，接收缓冲器和用于从所述接收缓冲器向所述接收处理器分发分组的调度器; 包括发送处理器和发送缓冲器的发送处理元件; 以及用于从完成队列（CQ）的头部将网络节点模式中的多核处理器的线程调度完成队列元素（CQE）的完成队列调度器（CQS）。该方法包括经由处理器总线可操作地将以太网适配器耦合到多核处理器系统，选择性地将第一多个分组分配到第一队列对以在端点模式下进行服务，在多核处理系统上运行设备驱动程序所述设备驱动程序通过将所述第一多个分组分派到所述多核处理器系统的一个处理器核心来控制所述第一队列对的服务，选择性地将第二多个分组分配给第二队列对以在网络节点中进行服务模式; 以及所述以太网适配器通过将所述第二多个分组分派到多个处理器线程来控制所述第二队列对的服务。

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