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1. 发明授权

US08111697B1 Methods and apparatus for packet classification based on multiple conditions 有权
标题翻译：基于多种条件的分组分类方法和装置
公开(公告)号：US08111697B1
公开(公告)日：2012-02-07
申请号：US12347495
申请日：2008-12-31
申请人： Ramesh Panwar , Deepak Goel , Jianhui Huang , Srinivasan Jagannadhan
发明人： Ramesh Panwar , Deepak Goel , Jianhui Huang , Srinivasan Jagannadhan
IPC分类号： H04L12/28
CPC分类号： H04L63/0263 , H04L45/745 , H04L47/2441 , H04L49/00
摘要： In one embodiment, a method includes classifying a data packet received at a switch fabric, selecting an action descriptor in response to the classifying, and processing an action defined in the action descriptor. The classifying is based on a primary classification condition and first portion of the data packet. The action descriptor is associated with the primary classification condition. The processing includes determining whether a secondary classification condition is satisfied by a second portion of the data packet.
摘要翻译：在一个实施例中，一种方法包括对在交换结构处接收的数据分组进行分类，响应于分类选择动作描述符，以及处理在动作描述符中定义的动作。分类基于主分类条件和数据分组的第一部分。动作描述符与主分类条件相关联。该处理包括确定辅助分类条件是否被数据分组的第二部分所满足。

2. 发明授权

US07889741B1 Methods and apparatus for packet classification based on multiple conditions 有权
标题翻译：基于多种条件的分组分类方法和装置
公开(公告)号：US07889741B1
公开(公告)日：2011-02-15
申请号：US12347499
申请日：2008-12-31
申请人： Ramesh Panwar , Deepak Goel , Jianhui Huang , Srinivasan Jagannadhan
发明人： Ramesh Panwar , Deepak Goel , Jianhui Huang , Srinivasan Jagannadhan
IPC分类号： H04L12/56 , H04L12/28 , G06F9/26
CPC分类号： H04L49/30
摘要： In one embodiment, a method includes accessing a condition test vector, selecting a key from a plurality of keys, and determining whether the key selected and a condition value satisfy a condition relation. The accessing being based on an index value. The condition test vector including a first plurality of bit values defining the condition relation, a second plurality of bit values defining a key selector, and a third plurality of bit values defining the condition value. The selecting being based on the second plurality of bit values. Each key from the plurality of keys including a combination of bit values representing a portion of a data packet. A result is defined based on the determining.
摘要翻译：在一个实施例中，一种方法包括访问条件测试向量，从多个键中选择密钥，以及确定所选择的密钥和条件值是否满足条件关系。访问是基于索引值。条件测试向量包括定义条件关系的第一多个比特值，定义密钥选择器的第二多个比特值以及定义条件值的第三多个比特值。所述选择基于所述第二多个比特值。来自多个键的每个键包括表示数据分组的一部分的比特值的组合。结果是基于确定而定义的。

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。

5. 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。

6. 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。

7. 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。

8. 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。

9. 发明授权

US08798057B1 Methods and apparatus to implement except condition during data packet classification 有权
标题翻译：在数据包分类期间实现除条件之外的方法和装置
公开(公告)号：US08798057B1
公开(公告)日：2014-08-05
申请号：US12242278
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 , H04J3/24
CPC分类号： H04L45/745 , H04L45/302
摘要： In one embodiment, a method includes receiving a value associated with a data packet and identifying a data set based on the value. The data set is associated with a range of values and represents routing actions. The data set is a first data set from a plurality of data sets if the value is included in the range of values associated with the first data set. The data set is a default data set if the value is not included in a range of values associated with a data set from the plurality of data sets. The method includes combining the first data set with the default data set if the first data set is identified. The method includes combining the default data set with an except data set if the default data set is identified.
摘要翻译：在一个实施例中，一种方法包括接收与数据分组相关联的值并基于该值识别数据集。数据集与值的范围相关联，并表示路由动作。如果该值包括在与第一数据集相关联的值的范围内，则数据集是来自多个数据集的第一数据集。如果该值不包括在与多个数据集中的数据集相关联的值的范围内，则数据集是默认数据集。该方法包括如果识别出第一数据集，则将第一数据集合与默认数据集合。该方法包括如果识别出默认数据集，则将默认数据集与除数据集合组合。

10. 发明申请

US20110200038A1 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：US20110200038A1
公开(公告)日：2011-08-18
申请号：US13097770
申请日：2011-04-29
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： H04L12/50 , 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。

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