专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07986706B2 Hierarchical pipelined distributed scheduling traffic manager 有权
标题翻译：分层流水线分布式调度流量管理器
公开(公告)号：US07986706B2
公开(公告)日：2011-07-26
申请号：US12432373
申请日：2009-04-29
申请人： Thomas C. Yip , Michael Feng , Sun Den Chen , Stephen Chow , Edward Ho , Patrick Wang , Srivi Dhruvanarayan , Ranjit Rozario , Edmund Chen
发明人： Thomas C. Yip , Michael Feng , Sun Den Chen , Stephen Chow , Edward Ho , Patrick Wang , Srivi Dhruvanarayan , Ranjit Rozario , Edmund Chen
IPC分类号： H04L12/28
CPC分类号： H04L47/623 , H04L47/50 , H04L47/60 , H04L49/90
摘要： A hierarchical pipelined distributed scheduling traffic manager includes multiple hierarchical levels to perform hierarchical winner selection and propagation in a pipeline including selecting and propagating winner queues of a lower level to subsequent levels to determine one final winning queue. The winner selection and propagation is performed in parallel between the levels to reduce the time required in selecting the final winning queue. In some embodiments, the hierarchical traffic manager is separated into multiple separate sliced hierarchical traffic managers to distributively process the traffic.
摘要翻译：分级流水线分布式调度业务管理器包括多个层次级别，以在流水线中执行分级获胜者选择和传播，包括选择和传播较低级别的优胜者队列到后续级别，以确定一个最终获胜队列。获胜者选择和传播在级别之间并行执行，以减少选择最终获胜队列所需的时间。在一些实施例中，分层业务管理器被分成多个分离的分层分层业务管理器以分布地处理业务。

2. 发明申请

US20100278190A1 HIERARCHICAL PIPELINED DISTRIBUTED SCHEDULING TRAFFIC MANAGER 有权
标题翻译：分层管理分布式调度流量管理器
公开(公告)号：US20100278190A1
公开(公告)日：2010-11-04
申请号：US12432373
申请日：2009-04-29
申请人： Thomas C. Yip , Michael Feng , Sun Den Chen , Stephen Chow , Edward Ho , Patrick Wang , Srivi Dhruvanarayan , Ranjit Rozario , Edmund Chen
发明人： Thomas C. Yip , Michael Feng , Sun Den Chen , Stephen Chow , Edward Ho , Patrick Wang , Srivi Dhruvanarayan , Ranjit Rozario , Edmund Chen
IPC分类号： H04L12/56
CPC分类号： H04L47/623 , H04L47/50 , H04L47/60 , H04L49/90
摘要： A hierarchical pipelined distributed scheduling traffic manager includes multiple hierarchical levels to perform hierarchical winner selection and propagation in a pipeline including selecting and propagating winner queues of a lower level to subsequent levels to determine one final winning queue. The winner selection and propagation is performed in parallel between the levels to reduce the time required in selecting the final winning queue. In some embodiments, the hierarchical traffic manager is separated into multiple separate sliced hierarchical traffic managers to distributively process the traffic.
摘要翻译：分级流水线分布式调度业务管理器包括多个层次级别，以在流水线中执行分级获胜者选择和传播，包括选择和传播较低级别的优胜者队列到后续级别，以确定一个最终获胜队列。获胜者选择和传播在级别之间并行执行，以减少选择最终获胜队列所需的时间。在一些实施例中，分层业务管理器被分成多个分离的分层分层业务管理器以分布地处理业务。

3. 发明授权

US08897316B2 On-chip packet cut-through 有权
标题翻译：片上分组直通
公开(公告)号：US08897316B2
公开(公告)日：2014-11-25
申请号：US12983104
申请日：2010-12-31
申请人： Edmund Chen , Ramanathan Lakshmikanthan , Ranjit Rozario , Brian Alleyne , Stephen Chow , Patrick Wang , Edward Ho , Thomas Yip , Sun Den Chen , Michael Feng
发明人： Edmund Chen , Ramanathan Lakshmikanthan , Ranjit Rozario , Brian Alleyne , Stephen Chow , Patrick Wang , Edward Ho , Thomas Yip , Sun Den Chen , Michael Feng
IPC分类号： H04L12/54 , H04L12/861 , H04L12/801 , H04L12/851 , H04L12/823
CPC分类号： H04L49/9073 , H04L47/12 , H04L47/2441 , H04L47/32 , H04L49/9036 , H04L49/9063 , H04L49/9078
摘要： Embodiments of the invention include a method for avoiding memory bandwidth utilization during packet processing. The packet processing core receives a plurality of packets. The packet processing core identifies the packet's quality of service (QoS) descriptor. The packet processing core determines that at least one packet should be moved to an off-chip packet stored prior to the packet being transmitted to the egress port. The packet processing core bases that determination, at least in part, on the packet's QoS descriptor. The packet processing core moves the determined packets to the off-chip packet store. The packet processing core determines that at least one packet should not be moved to the off-chip packet store prior to the packet being transmitted to the egress port. This determination is also made, at least in part, based on the packet's QoS descriptor.
摘要翻译：本发明的实施例包括一种用于在分组处理期间避免存储器带宽利用的方法。分组处理核心接收多个分组。分组处理核心识别分组的服务质量（QoS）描述符。分组处理核心确定至少一个分组应该被移动到在分组被发送到出口端口之前存储的片外分组。分组处理核心基于至少部分地确定分组的QoS描述符。分组处理核心将确定的分组移动到片外分组存储。分组处理核心在分组被发送到出口端口之前确定至少一个分组不应该被移动到片外分组存储。该决定至少部分地基于分组的QoS描述符进行。

4. 发明授权

US08879550B2 Method and apparatus for packet classification 有权
标题翻译：分组分类的方法和装置
公开(公告)号：US08879550B2
公开(公告)日：2014-11-04
申请号：US13466984
申请日：2012-05-08
申请人： Prashant Anand , Ramanathan Lakshmikanthan , Sun Den Chen , Ning Xu
发明人： Prashant Anand , Ramanathan Lakshmikanthan , Sun Den Chen , Ning Xu
IPC分类号： H04L12/28
CPC分类号： H04L63/0227 , H04L45/745 , H04L47/2441 , H04L47/2483 , H04L63/0263 , H04L63/101 , H04L63/1408
摘要： In one aspect, the present invention reduces the amount of low-latency memory needed for rules-based packet classification by representing a packet classification rules database in compressed form. A packet processing rules database, e.g., an ACL database comprising multiple ACEs, is preprocessed to obtain corresponding rule fingerprints. These rule fingerprints are much smaller than the rules and are easily accommodated in on-chip or other low-latency memory that is generally available to the classification engine in limited amounts. The rules database in turn can be stored in off-chip or other higher-latency memory, as initial matching operations involve only the packet key of the subject packet and the fingerprint database. The rules database is accessed for full packet classification only if a tentative match is found between the packet key and an entry in the fingerprint database. Thus, the present invention also advantageously minimizes accesses to the rules database.
摘要翻译：一方面，本发明通过以压缩形式表示分组分类规则数据库来减少基于规则的分组分类所需的低延迟存储器的数量。分组处理规则数据库（例如，包括多个ACE的ACL数据库）被预处理以获得相应的规则指纹。这些规则指纹比规则小得多，并且容易地被容纳在分类引擎中有限的片上或其他低延迟存储器中。因为初始匹配操作仅涉及主题分组和指纹数据库的分组密钥，因此规则数据库又可以存储在片外或其他较高延迟的存储器中。仅当在分组密钥和指纹数据库中的条目之间发现暂时匹配时，才能对完整分组分类进行规则数据库的访问。因此，本发明还有利地最小化对规则数据库的访问。

5. 发明申请

US20120170452A1 HIERARCHICAL PACKET POLICER 有权
标题翻译：分层分组策略器
公开(公告)号：US20120170452A1
公开(公告)日：2012-07-05
申请号：US13239214
申请日：2011-09-21
申请人： Brian Alleyne , Sun Den Chen , Ramanathan Lakshmikanthan
发明人： Brian Alleyne , Sun Den Chen , Ramanathan Lakshmikanthan
IPC分类号： H04L12/56
CPC分类号： H04L47/31 , H04L47/20 , H04L47/215
摘要： Embodiments of the invention a method for policing a packet at line rate. A hierarchical policer receives a policer request comprising packet characteristics and identifying request configuration information. The hierarchical policer retrieves meter states specified by the request configuration information. The hierarchical policer processes packet characteristics through meters to generate a meter result. The hierarchical policer generates a hierarchical policer table lookup address using a plurality of meter types, a plurality of input color controls, one or more of the packet characteristics, the meter results, and a plurality of coupling algorithm identifiers. The hierarchical policer reads a hierarchical meter result from a hierarchical policer result table, containing at least a final output packet attribute that classifies the packet. The hierarchical policer updates one or more of the meter states based on the plurality of meter state results. The hierarchical policer returns the final packet output to a policing requestor.
摘要翻译：本发明的实施例提供了一种以线速度对分组进行管理的方法。分层策略器接收包含分组特性和识别请求配置信息的策略请求。分层策略器检索由请求配置信息指定的仪表状态。分层策略器通过米来处理分组特征，以产生测量结果。分级策略器使用多个仪表类型，多个输入颜色控制，分组特性中的一个或多个，仪表结果和多个耦合算法标识符来生成分层策略表查找地址。分层策略器从分层策略器结果表中读取分层计量表结果，其中至少包含对数据包进行分类的最终输出数据包属性。分层监视器基于多个仪表状态结果来更新仪表状态中的一个或多个。分层策略器将最终的分组输出返回到管理请求者。

6. 发明授权

US08767540B2 Hierarchical packet policer 有权
标题翻译：层次分组监管器
公开(公告)号：US08767540B2
公开(公告)日：2014-07-01
申请号：US13239214
申请日：2011-09-21
申请人： Brian Alleyne , Sun Den Chen , Ramanathan Lakshmikanthan
发明人： Brian Alleyne , Sun Den Chen , Ramanathan Lakshmikanthan
IPC分类号： G01R31/08 , G06F11/00 , G08C15/00 , H04J1/16 , H04J3/14 , H04L1/00 , H04L12/26
CPC分类号： H04L47/31 , H04L47/20 , H04L47/215
摘要： Embodiments of the invention a method for policing a packet at line rate. A hierarchical policer receives a policer request comprising packet characteristics and identifying request configuration information. The hierarchical policer retrieves meter states specified by the request configuration information. The hierarchical policer processes packet characteristics through meters to generate a meter result. The hierarchical policer generates a hierarchical policer table lookup address using a plurality of meter types, a plurality of input color controls, one or more of the packet characteristics, the meter results, and a plurality of coupling algorithm identifiers. The hierarchical policer reads a hierarchical meter result from a hierarchical policer result table, containing at least a final output packet attribute that classifies the packet. The hierarchical policer updates one or more of the meter states based on the plurality of meter state results. The hierarchical policer returns the final packet output to a policing requestor.
摘要翻译：本发明的实施例提供了一种以线速度对分组进行管理的方法。分层策略器接收包含分组特性和识别请求配置信息的策略请求。分层策略器检索由请求配置信息指定的仪表状态。分层策略器通过米来处理分组特征，以产生测量结果。分级策略器使用多个仪表类型，多个输入颜色控制，分组特性中的一个或多个，仪表结果和多个耦合算法标识符来生成分层策略表查找地址。分层策略器从分层策略器结果表中读取分层计量表结果，其中至少包含对数据包进行分类的最终输出数据包属性。分层监视器基于多个仪表状态结果来更新仪表状态中的一个或多个。分层策略器将最终的分组输出返回到管理请求者。

7. 发明申请

US20130301641A1 METHOD AND APPARATUS FOR PACKET CLASSIFICATION 有权
标题翻译：分组分类的方法和装置
公开(公告)号：US20130301641A1
公开(公告)日：2013-11-14
申请号：US13466984
申请日：2012-05-08
申请人： Prashant Anand , Ramanathan Lakshmikanthan , Sun Den Chen , Ning Xu
发明人： Prashant Anand , Ramanathan Lakshmikanthan , Sun Den Chen , Ning Xu
IPC分类号： H04L12/56
CPC分类号： H04L63/0227 , H04L45/745 , H04L47/2441 , H04L47/2483 , H04L63/0263 , H04L63/101 , H04L63/1408
摘要： In one aspect, the present invention reduces the amount of low-latency memory needed for rules-based packet classification by representing a packet classification rules database in compressed form. A packet processing rules database, e.g., an ACL database comprising multiple ACEs, is preprocessed to obtain corresponding rule fingerprints. These rule fingerprints are much smaller than the rules and are easily accommodated in on-chip or other low-latency memory that is generally available to the classification engine in limited amounts. The rules database in turn can be stored in off-chip or other higher-latency memory, as initial matching operations involve only the packet key of the subject packet and the fingerprint database. The rules database is accessed for full packet classification only if a tentative match is found between the packet key and an entry in the fingerprint database. Thus, the present invention also advantageously minimizes accesses to the rules database.
摘要翻译：一方面，本发明通过以压缩形式表示分组分类规则数据库来减少基于规则的分组分类所需的低延迟存储器的数量。分组处理规则数据库（例如，包括多个ACE的ACL数据库）被预处理以获得相应的规则指纹。这些规则指纹比规则小得多，并且容易地被容纳在分类引擎中有限的片上或其他低延迟存储器中。因为初始匹配操作仅涉及主题分组和指纹数据库的分组密钥，因此规则数据库又可以存储在片外或其他较高延迟的存储器中。仅当在分组密钥和指纹数据库中的条目之间发现暂时匹配时，才能对完整分组分类进行规则数据库的访问。因此，本发明还有利地最小化对规则数据库的访问。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式