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1. 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。

2. 发明申请

US20160085722A1 DATA PACKET PROCESSING 有权
标题翻译：数据包处理
公开(公告)号：US20160085722A1
公开(公告)日：2016-03-24
申请号：US14862599
申请日：2015-09-23
申请人： Fabrice Jean VERPLANKEN , Francois ABEL , Claude BASSO , Damon PHILIPPE
发明人： Fabrice Jean VERPLANKEN , Francois ABEL , Claude BASSO , Damon PHILIPPE
IPC分类号： G06F15/80 , G06F13/42 , G06F13/40
CPC分类号： G06F13/4282 , G06F13/4022
摘要： Proposed is an action machine for processing packet data in a network processor. The action machine comprises: first and second data storage units adapted to store data for processing; and a processing unit adapted to process data from the first and second data storage units. The first storage unit is adapted to be accessed by the processing unit and a unit external to the action machine, and the second storage unit is adapted to only be accessed by the processing unit.
摘要翻译：提出了一种在网络处理器中处理分组数据的动作机器。动作机器包括：适于存储用于处理的数据的第一和第二数据存储单元; 以及适于处理来自第一和第二数据存储单元的数据的处理单元。第一存储单元适于由处理单元访问和操作机外部的单元，并且第二存储单元仅适于由处理单元访问。

3. 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。

4. 发明授权

US08913620B2 Multicast traffic generation using hierarchical replication mechanisms for distributed switches 有权
标题翻译：使用分布式交换机的分层复制机制的组播流量生成
公开(公告)号：US08913620B2
公开(公告)日：2014-12-16
申请号：US13420203
申请日：2012-03-14
申请人： Claude Basso , Todd A. Greenfield , Bruce M. Walk
发明人： Claude Basso , Todd A. Greenfield , Bruce M. Walk
IPC分类号： H04L12/28 , H04L1/00 , H04L12/66 , H04H20/71 , H04J3/16 , H04J3/24 , H04J3/26 , G06F15/173 , H04W72/00
CPC分类号： H04L45/16 , H04L49/201 , H04L49/351 , H04L49/70
摘要： A distributed switch may include a hierarchy with one or more levels of surrogate sub-switches (and surrogate bridge elements) that enable the distributed switch to scale bandwidth based on the size of the membership of a multicast group. When a sub-switch receives a multicast data frame, it forwards the packet to one of the surrogate sub-switches. Each surrogate sub-switch may then forward the packet to another surrogate in a different hierarchical level or to a destination computing device. Because the surrogates may transmit the data frame in parallel using two or more connection interfaces, the bandwidth used to forward the multicast packet increases for each surrogate used.
摘要翻译：分布式交换机可以包括具有使得分布式交换机能够基于多播组的成员资格的大小来缩放带宽的代理子交换机（和代理桥元素）的一个或多个级别的层级。当子交换机接收到组播数据帧时，它将数据包转发到其中一个代理子交换机。然后，每个代理子交换机可以将分组转发到不同层级的另一个代理或转发到目的地计算设备。由于代理可以使用两个或多个连接接口并行传输数据帧，所以用于转发组播数据包的带宽随着使用的每个代理而增加。

5. 发明授权

US08891535B2 Managing a global forwarding table in a distributed switch 有权
标题翻译：在分布式交换机中管理全局转发表
公开(公告)号：US08891535B2
公开(公告)日：2014-11-18
申请号：US13352973
申请日：2012-01-18
申请人： Debra L. Angst , Claude Basso , Josep Cors , Rekha Mundhra , Natarajan Vaidhyanathan
发明人： Debra L. Angst , Claude Basso , Josep Cors , Rekha Mundhra , Natarajan Vaidhyanathan
IPC分类号： H04L12/28 , G06F15/173 , H04L12/44 , H04L12/751 , H04L12/801 , H04L12/24 , H04L12/931
CPC分类号： H04L12/44 , H04L12/18 , H04L12/4625 , H04L41/12 , H04L45/02 , H04L45/16 , H04L45/54 , H04L47/15 , H04L49/201 , H04L49/65 , H04L69/28
摘要： Apparatuses and methods to manage a global forwarding table in a distributed switch are provided. A particular method may include managing a global forwarding table in a distributed switch. The distributed switch may include a plurality of switch forwarding units. The method may start a timer for an entry in the global forwarding table, and the entry may include a multicast destination address and corresponding multicast membership information. The method may also, in response to expiration of the timer of the entry, check at least one hit status to determine whether at least one switch forwarding unit of the plurality of switch forwarding units has forwarded multicast data to the corresponding multicast membership information of the multicast destination address of the entry. The method may further determine whether the entry is a cast-out candidate based on the hit status.
摘要翻译：提供了在分布式交换机中管理全局转发表的设备和方法。特定方法可以包括管理分布式交换机中的全局转发表。分布式交换机可以包括多个交换机转发单元。该方法可以启动全局转发表中的条目的定时器，并且该条目可以包括多播目的地地址和相应的多播成员资格信息。该方法还可以响应于条目的定时器的到期来检查至少一个命中状态，以确定多个交换机转发单元中的至少一个交换机转发单元是否已经将多播数据转发到相应的组播成员信息组播目的地址。该方法还可以基于命中状态进一步确定该条目是否是舍弃候选者。

6. 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。

7. 发明申请

US20140064277A1 SLICED ROUTING TABLE MANAGEMENT 有权
公开(公告)号：US20140064277A1
公开(公告)日：2014-03-06
申请号：US13597784
申请日：2012-08-29
申请人： Claude Basso , David A. Shedivy , Colin B. Verrilli , Bruce M. Walk , Daniel Wind
发明人： Claude Basso , David A. Shedivy , Colin B. Verrilli , Bruce M. Walk , Daniel Wind
IPC分类号： H04L12/56
CPC分类号： H04L45/44 , H04L45/7453
摘要： Techniques are provided for hash-based routing table management in a distributed network switch. A frame having a source address and a destination address is received. If no routing entry for the source address is found in a routing table of a switch module in the distributed network switch, where the routing table is divided into slices of buckets, then routing information is determined for the source address and a routing entry is generated. The routing table is modified to include the routing entry and based on a set of hash functions and properties of the slices.

8. 发明申请

US20130242985A1 MULTICAST BANDWIDTH MULTIPLICATION FOR A UNIFIED DISTRIBUTED SWITCH 有权
公开(公告)号：US20130242985A1
公开(公告)日：2013-09-19
申请号：US13420180
申请日：2012-03-14
申请人： Claude Basso , Todd A. Greenfield , Philip R. Hillier, III , Mark L. Rudquist , Kenneth M. Valk , Brian T. Vanderpool , Bruce M. Walk
发明人： Claude Basso , Todd A. Greenfield , Philip R. Hillier, III , Mark L. Rudquist , Kenneth M. Valk , Brian T. Vanderpool , Bruce M. Walk
IPC分类号： H04L12/56
CPC分类号： H04L45/16 , H04L49/201 , H04L49/351 , H04L49/70
摘要： The distributed switch may include a plurality of chips (i.e., sub-switches) on a switch module. These sub-switches may receive from a computing device connected to a Tx/Rx port a multicast data frame (e.g., an Ethernet frame) that designates a plurality of different destinations. Instead of simply using one egress connection interface to forward the copies of the data frame to each of the destinations sequentially, the sub-switch may use a plurality of a connection interfaces to transfer copies of the multicast data frame simultaneously. The port that receives the multicast data frame can borrow the connection interfaces (and associated hardware such as buffers) assigned to these other ports to transmit copies of the multicast data frame simultaneously.

9. 发明申请

US20120221928A1 CHECKSUM VERIFICATION ACCELERATOR 有权
标题翻译：检查验证加速器
公开(公告)号：US20120221928A1
公开(公告)日：2012-08-30
申请号：US13466940
申请日：2012-05-08
申请人： Francois Abel , Claude Basso , Jean L. Calvignac , Natarajan Vaidhyanathan , Fabrice Jean Verplanken
发明人： Francois Abel , Claude Basso , Jean L. Calvignac , Natarajan Vaidhyanathan , Fabrice Jean Verplanken
IPC分类号： H03M13/09 , G06F11/10
CPC分类号： H04L1/0079 , H04L1/0061 , H04L1/0072
摘要： Disclosed a method for validating a data packet by a network processor supporting a first, network protocol and a second network protocol and utilizing shared hardware. The network processor receives a data packet: identities a network packet protocol for the data packet; and processes the data packet according to the network packet protocol comprising: updating a first register with a first partial packet length specific to the first network protocol; updating a second register with a second partial packet length specific to the second network protocol; and updating a third register with a first checksum computed from fields independent of the network protocol. The method produces a second checksum utilizing a function that combines values from the first register, the second register, and the third register. The method validates the data packet by comparing the data packet checksum to the second checksum.
摘要翻译：公开了一种通过支持第一网络协议和第二网络协议的网络处理器来验证数据分组并利用共享硬件的方法。网络处理器接收数据包：识别数据包的网络包协议; 并根据网络分组协议对数据分组进行处理，包括：以第一网络协议特有的第一部分分组长度更新第一寄存器; 用第二网络协议特有的第二部分分组长度更新第二寄存器; 以及用独立于网络协议的字段计算的具有第一校验和的更新第三寄存器。该方法利用组合来自第一寄存器，第二寄存器和第三寄存器的值的函数产生第二校验和。该方法通过将数据包校验和与第二校验和进行比较来验证数据包。

10. 发明授权

US08225188B2 Apparatus for blind checksum and correction for network transmissions 有权
标题翻译：用于网络传输的盲校验和校正装置
公开(公告)号：US08225188B2
公开(公告)日：2012-07-17
申请号：US12200985
申请日：2008-08-29
申请人： Claude Basso , Jean Louis Calvignac , Chih-Jen Chang , Philippe Damon , Ronald Edward Fuhs , Natarajan Vaidhyanathan , Fabrice Jean Verplanken , Colin Beaton Verrilli , Scott Michael Willenborg
发明人： Claude Basso , Jean Louis Calvignac , Chih-Jen Chang , Philippe Damon , Ronald Edward Fuhs , Natarajan Vaidhyanathan , Fabrice Jean Verplanken , Colin Beaton Verrilli , Scott Michael Willenborg
IPC分类号： H03M13/00
CPC分类号： H04L69/16 , H04L1/0041 , H04L1/0061 , H04L1/0072 , H04L69/161
摘要： Apparatus for providing a checksum in a network transmission. In one aspect of the invention, a checksum for a packet to be transmitted on a network is determined by retrieving packet information from a storage device, the packet information to be included in the packet to be transmitted. A blind checksum value is determined based on the retrieved packet information, and the blind checksum value is adjusted to a protocol checksum based on descriptor information describing the structure of the packet. The protocol checksum is inserted in the packet before the packet is transmitted.
摘要翻译：用于在网络传输中提供校验和的装置。在本发明的一个方面，通过从存储设备检索分组信息来确定要在网络上发送的分组的校验和，所述分组信息将包括在要发送的分组中。基于检索的分组信息确定盲校验和值，并且基于描述分组的结构的描述符信息将盲校验和值调整为协议校验和。在分组发送之前，协议校验和被插入到分组中。

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