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1. 发明授权

US10097481B2 Methods and apparatus for providing services in distributed switch 有权
公开(公告)号：US10097481B2
公开(公告)日：2018-10-09
申请号：US13538344
申请日：2012-06-29
申请人： Krishna Narayanaswamy , Jean-Marc Frailong , Anjan Venkatramani , Srinivasan Jagannadhan
发明人： Krishna Narayanaswamy , Jean-Marc Frailong , Anjan Venkatramani , Srinivasan Jagannadhan
IPC分类号： H04L12/28 , H04L12/931 , H04L29/08
摘要： In some embodiments, a non-transitory processor-readable medium stores code representing instructions to be executed by a processor. The code causes the processor to receive, from a source peripheral processing device, a portion of a data packet having a destination address associated with a destination peripheral processing device. The code causes the processor to identify, based on the destination address, a service to be performed on the portion of the data packet. The code causes the processor to select, based on the service, an identifier of a service module associated with the service. The code further causes the processor to send the portion of the data packet to the service module via a distributed switch fabric such that the service module performs the service on the portion of the data packet and sends the portion of the data packet to the destination peripheral processing device via the distributed switch fabric.

2. 发明申请

US20130246651A1 LONGEST PREFIX MATCH SEARCHES WITH VARIABLE NUMBERS OF PREFIXES 有权
标题翻译：最新的前缀匹配搜索与可变数字的前缀
公开(公告)号：US20130246651A1
公开(公告)日：2013-09-19
申请号：US13418907
申请日：2012-03-13
申请人： John Keen , Jean-Marc Frailong , Deepak Goel , Srinivasan Jagannadhan , Srilakshmi Adusumalli
发明人： John Keen , Jean-Marc Frailong , Deepak Goel , Srinivasan Jagannadhan , Srilakshmi Adusumalli
IPC分类号： G06F15/173
CPC分类号： H04L45/748 , H04L45/7453
摘要： An example network device includes a control plane and a filter lookup module that includes a Bloom filter that supports parallel lookup of a maximum number of different prefix lengths. The filter lookup module accesses the Bloom filter to determine a longest length prefix that matches an entry in a set of prefixes. The control plane receives prefix lengths that include more than the maximum number of different prefix lengths supported by the Bloom filter, wherein the set of prefix lengths is associated with one application, generates, based on the received set of prefix lengths, two or more groups of different prefix lengths, wherein each of the two or more groups of different prefix lengths includes no more than the maximum number of different prefix lengths, and programs the filter lookup module with the two or more groups of different prefix lengths associated with the one application.
摘要翻译：示例性网络设备包括控制平面和过滤器查找模块，其包括支持最大数量的不同前缀长度的并行查找的布隆过滤器。过滤器查找模块访问Bloom过滤器以确定与一组前缀中的条目匹配的最长长度前缀。控制平面接收包括大于由Bloom过滤器支持的不同前缀长度的最大数量的前缀长度，其中前缀长度集合与一个应用相关联，基于所接收的一组前缀长度生成两个或多个组其中不同前缀长度的两个或多个组中的每一个包括不超过不同前缀长度的最大数目，并且将过滤器查找模块与与一个应用程序相关联的两个或更多个不同前缀长度的组编程。

3. 发明申请

US20100080224A1 METHODS AND APPARATUS FOR PACKET CLASSIFICATION BASED ON POLICY VECTORS 有权
标题翻译：基于政策向量的分组分类的方法和装置
公开(公告)号：US20100080224A1
公开(公告)日：2010-04-01
申请号：US12242172
申请日：2008-09-30
申请人： Ramesh Panwar , Deepak Goel , Srinivasan Jagannadhan , Jean-Marc Frailong
发明人： Ramesh Panwar , Deepak Goel , Srinivasan Jagannadhan , Jean-Marc Frailong
IPC分类号： H04L12/56
CPC分类号： H04L45/745 , H04L49/1515 , H04L49/503 , H04L69/22
摘要： In one embodiment, a method, comprising producing a first policy vector based on a first portion of a data packet received at a multi-stage switch. The method also includes producing a second policy vector based on a second portion of the data packet different than the first portion of the data packet. A third policy vector is produced based on a combination of at least the first policy vector and at least the second policy vector. The third policy vector including a combination of bit values configured to trigger an element at the multi-stage switch to process the data packet.
摘要翻译：在一个实施例中，一种方法，包括基于在多级交换机处接收到的数据分组的第一部分产生第一策略向量。该方法还包括基于不同于数据分组的第一部分的数据分组的第二部分产生第二策略向量。基于至少第一策略向量和至少第二策略向量的组合来生成第三策略向量。第三策略向量包括被配置为触发多级切换处的元素以处理数据分组的比特值的组合。

4. 发明申请

US20140003433A1 METHODS AND APPARATUS FOR PROVIDING SERVICES IN DISTRIBUTED SWITCH 审中-公开
标题翻译：在分布式交换机中提供服务的方法和装置
公开(公告)号：US20140003433A1
公开(公告)日：2014-01-02
申请号：US13538344
申请日：2012-06-29
申请人： Krishna Narayanaswamy , Jean-Marc Frailong , Anjan Venkatramani , Srinivasan Jagannadhan
发明人： Krishna Narayanaswamy , Jean-Marc Frailong , Anjan Venkatramani , Srinivasan Jagannadhan
IPC分类号： H04L12/56
CPC分类号： H04L49/355 , H04L67/327
摘要： In some embodiments, a non-transitory processor-readable medium stores code representing instructions to be executed by a processor. The code causes the processor to receive, from a source peripheral processing device, a portion of a data packet having a destination address associated with a destination peripheral processing device. The code causes the processor to identify, based on the destination address, a service to be performed on the portion of the data packet. The code causes the processor to select, based on the service, an identifier of a service module associated with the service. The code further causes the processor to send the portion of the data packet to the service module via a distributed switch fabric such that the service module performs the service on the portion of the data packet and sends the portion of the data packet to the destination peripheral processing device via the distributed switch fabric.
摘要翻译：在一些实施例中，非暂时处理器可读介质存储表示要由处理器执行的指令的代码。代码使得处理器从源外围处理设备接收具有与目的地外围设备处理设备相关联的目的地地址的数据分组的一部分。代码使得处理器基于目的地地址来识别要在数据分组的部分上执行的服务。代码使得处理器基于该服务来选择与服务相关联的服务模块的标识符。该代码还使得处理器经由分布式交换结构将数据分组的一部分发送到服务模块，使得服务模块在数据分组的一部分上执行服务，并将数据分组的一部分发送到目的地外设处理设备通过分布式交换结构。

5. 发明授权

US07961734B2 Methods and apparatus related to packet classification associated with a multi-stage switch 有权
标题翻译：与多级开关相关的分组分类相关的方法和装置
公开(公告)号：US07961734B2
公开(公告)日：2011-06-14
申请号：US12242168
申请日：2008-09-30
申请人： Ramesh Panwar , Deepak Goel , Srinivasan Jagannadhan , Jean-Marc Frailong
发明人： Ramesh Panwar , Deepak Goel , Srinivasan Jagannadhan , Jean-Marc Frailong
IPC分类号： H04L12/28
CPC分类号： H04L45/00 , H04L45/12 , H04L49/1515 , H04L49/503
摘要： In one embodiment, an apparatus can include a policy vector module configured to retrieve a compressed policy vector based on a portion of a data packet received at a multi-stage switch. The apparatus can also include a decompression module configured to receive the compressed policy vector and configured to define a decompressed policy vector based on the compressed policy vector. The decompressed policy vector can define a combination of bit values associated with a policy.
摘要翻译：在一个实施例中，装置可以包括策略向量模块，其被配置为基于在多级交换机处接收到的数据分组的一部分来检索压缩策略向量。该装置还可以包括解压缩模块，其被配置为接收压缩的策略向量并且被配置为基于压缩的策略向量来定义解压缩的策略向量。解压缩的策略向量可以定义与策略相关联的比特值的组合。

6. 发明申请

US20100083345A1 METHODS AND APPARATUS RELATED TO PACKET CLASSIFICATION ASSOCIATED WITH A MULTI-STAGE SWITCH 有权
标题翻译：与多级开关相关的分组分类相关的方法和装置
公开(公告)号：US20100083345A1
公开(公告)日：2010-04-01
申请号：US12242168
申请日：2008-09-30
申请人： Ramesh Panwar , Deepak Goel , Srinivasan Jagannadhan , Jean-Marc Frailong
发明人： Ramesh Panwar , Deepak Goel , Srinivasan Jagannadhan , Jean-Marc Frailong
IPC分类号： H04L9/00 , H04L12/56
CPC分类号： H04L45/00 , H04L45/12 , H04L49/1515 , H04L49/503
摘要： In one embodiment, an apparatus can include a policy vector module configured to retrieve a compressed policy vector based on a portion of a data packet received at a multi-stage switch. The apparatus can also include a decompression module configured to receive the compressed policy vector and configured to define a decompressed policy vector based on the compressed policy vector. The decompressed policy vector can define a combination of bit values associated with a policy.
摘要翻译：在一个实施例中，装置可以包括策略向量模块，其被配置为基于在多级交换机处接收到的数据分组的一部分来检索压缩策略向量。该装置还可以包括解压缩模块，其被配置为接收压缩的策略向量并且被配置为基于压缩的策略向量来定义解压缩的策略向量。解压缩的策略向量可以定义与策略相关联的比特值的组合。

7. 发明授权

US09042402B1 Methods and apparatus for control protocol validation of a switch fabric system 有权
标题翻译：交换架构系统控制协议验证的方法和装置
公开(公告)号：US09042402B1
公开(公告)日：2015-05-26
申请号：US13104423
申请日：2011-05-10
申请人： Jaihari V. Loganathan , Srinivasan Jagannadhan
发明人： Jaihari V. Loganathan , Srinivasan Jagannadhan
IPC分类号： H04L12/66 , H04L12/46
CPC分类号： H04L43/50 , H04L12/4641 , H04L45/02 , H04L45/586
摘要： In some embodiments, an apparatus includes a first network control entity within a control plane of a switch fabric system. The first network control entity is configured to receive a first test signal including a test instruction to be implemented within the switch fabric system. The first network control entity is configured to send a second test signal including the test instruction to a second network control entity such that the second network control entity implements the test instruction for a predetermined amount of time.
摘要翻译：在一些实施例中，装置包括在交换结构系统的控制平面内的第一网络控制实体。第一网络控制实体被配置为接收包括要在交换结构系统内实现的测试指令的第一测试信号。第一网络控制实体被配置为向第二网络控制实体发送包括测试指令的第二测试信号，使得第二网络控制实体在预定时间量内实施测试指令。

8. 发明授权

US08675648B1 Methods and apparatus for compression in packet classification 有权
标题翻译：分组分类中的压缩方法和装置
公开(公告)号：US08675648B1
公开(公告)日：2014-03-18
申请号：US12242143
申请日：2008-09-30
申请人： Deepak Goel , Ramesh Panwar , Srinivasan Jagannadhan
发明人： Deepak Goel , Ramesh Panwar , Srinivasan Jagannadhan
IPC分类号： H04L12/28
CPC分类号： H04L49/10
摘要： In one embodiment, a method includes receiving a policy vectors associated with a switch fabric, determining a compression scheme, and producing a compressed vector based on the policy vector and the compression scheme. The policy vector is represented by a bit sequence and has a plurality of policy bit values. A policy bit value from the plurality of policy bit vales is configured to trigger an action associated with a data packet in the switch fabric. The compression scheme is determined based on a portion of the policy vector.
摘要翻译：在一个实施例中，一种方法包括接收与交换结构相关联的策略向量，确定压缩方案，以及基于策略向量和压缩方案产生压缩向量。策略向量由比特序列表示，并具有多个策略比特值。来自多个策略比特值的策略比特值被配置为触发与交换结构中的数据分组相关联的动作。基于策略向量的一部分来确定压缩方案。

9. 发明授权

US08571023B2 Methods and Apparatus Related to Packet Classification Based on Range Values 有权
标题翻译：基于范围值的分组分类相关方法与设备
公开(公告)号：US08571023B2
公开(公告)日：2013-10-29
申请号：US12794175
申请日：2010-06-04
申请人： Ramesh Panwar , Deepak Goel , Srinivasan Jagannadhan
发明人： Ramesh Panwar , Deepak Goel , Srinivasan Jagannadhan
IPC分类号： H04L12/28 , H04J1/16
CPC分类号： H04L45/745 , H04L49/1515 , H04L49/3009
摘要： In one embodiment, an apparatus comprises a range selection module, a first stage of bloom filters, a second stage of bloom filters and a hashing module. The range selection module is configured to define a set of hash key vectors based on a set of range values associated with at least a portion of an address value from a data packet received at a multi-stage switch. The first stage of bloom filters and the second stage of bloom filters are collectively configured to determine that at least a portion of a hash key vector from the set of hash key vectors has a probability of being included in a hash table. The hashing module is configured to produce a hash value based on the hash key vector such that a first policy vector is selected based on the hash value and the first policy vector is decompressed to produce a second policy vector associated with the data packet.
摘要翻译：在一个实施例中，一种装置包括范围选择模块，第一阶段的布隆过滤器，第二阶段的布隆过滤器和散列模块。范围选择模块被配置为基于与在多级交换机处接收的数据分组的地址值的至少一部分相关联的一组范围值来定义一组散列密钥向量。布隆过滤器的第一阶段和布隆过滤器的第二阶段共同配置为确定来自该组散列密钥向量的散列密钥向量的至少一部分具有被包括在散列表中的概率。散列模块被配置为基于散列密钥向量产生散列值，使得基于散列值选择第一策略向量，并且解压缩第一策略向量以产生与数据分组相关联的第二策略向量。

10. 发明授权

US07738454B1 Methods and apparatus related to packet classification based on range values 有权
标题翻译：基于范围值的与分组分类相关的方法和设备
公开(公告)号：US07738454B1
公开(公告)日：2010-06-15
申请号：US12242154
申请日：2008-09-30
申请人： Ramesh Panwar , Deepak Goel , Srinivasan Jagannadhan
发明人： Ramesh Panwar , Deepak Goel , Srinivasan Jagannadhan
IPC分类号： H04L12/28
CPC分类号： H04L45/745 , H04L49/1515 , H04L49/3009
摘要： In one embodiment, a method includes receiving a portion of a hash key vector. The hash key vector can be defined based on a range value and based on at least a portion of an address value from a data packet queued within a multi-stage switch. The method also includes defining, based on the hash key vector, a hash value associated with a location in a hash table when the portion of the hash key vector matches a bit vector stored in a tag table.
摘要翻译：在一个实施例中，一种方法包括接收散列密钥向量的一部分。可以基于范围值并且基于来自在多级交换机内排队的数据分组的地址值的至少一部分来定义散列密钥向量。该方法还包括当哈希密钥向量的一部分与存储在标签表中的位向量匹配时，基于散列密钥向量定义与散列表中的位置相关联的哈希值。

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