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11. 发明授权

US07403999B2 Classification support system and method for fragmented IP packets 失效
标题翻译：分片支持系统和分片IP分组的方法
公开(公告)号：US07403999B2
公开(公告)日：2008-07-22
申请号：US10034470
申请日：2001-12-28
申请人： Everett Arthur Corl, Jr. , Brahmanand Kumar Gorti , Colin Beaton Verrilli
发明人： Everett Arthur Corl, Jr. , Brahmanand Kumar Gorti , Colin Beaton Verrilli
IPC分类号： G06F15/16 , G06F7/00 , H04L12/50
CPC分类号： H04L47/32 , H04L47/10 , H04L47/2441 , H04L69/16 , H04L69/166 , Y10S707/99943
摘要： A wire-speed forwarding platform and method for supporting multifield classification of a packet fragmented into a plurality of fragments in the wire-speed forwarding platform, comprising: receiving a fragment of the fragmented packet at the forwarding platform and deriving a key from one or more fields of the received fragment; and performing multifield classification of the received fragment by matching the key to a rule out of a plurality of rules, the rule comprising a plurality of fields including at least one field for specifying whether the received fragment's fragmentation characteristics are to be applied when performing the multifield classification.
摘要翻译：一种线速转发平台和方法，用于支持分片到线速转发平台中的多个片段的分组的多帧分类，包括：在转发平台处接收分片分组的片段，并从一个或多个收到的片段的字段; 以及通过将所述密钥与多个规则中的规则进行匹配来对所接收的片段进行多字段分类，所述规则包括多个字段，所述多个字段包括至少一个字段，用于指定在执行所述多字段时是否应用所接收的片段的分片特征分类。

12. 发明授权

US07304991B2 Minimizing memory accesses for a network implementing differential services over multi-protocol label switching 失效
标题翻译：最小化通过多协议标签交换实现差分服务的网络的存储器访问
公开(公告)号：US07304991B2
公开(公告)日：2007-12-04
申请号：US10174390
申请日：2002-06-18
申请人： Claude Basso , Francis Arts , Brahmanand Kumar Gorti , Colin Beaton Verrilli
发明人： Claude Basso , Francis Arts , Brahmanand Kumar Gorti , Colin Beaton Verrilli
IPC分类号： H04L12/28
CPC分类号： H04L47/2491 , H04L47/10 , H04L47/17 , H04L47/2408 , H04L47/2416
摘要： A method, system and computer program product for translating a type of service field of one protocol into multiple protocols. An ingress router in a DIFFerentiated SERVices network (Diffserv over MPLS network) may determine a type of quality of service, e.g., forward IP packet using best effort. A value referred to as a Per Hope Behavior (PHB) value may be generated based on the identified type of quality of service. The PHB value may be used to index into a table comprising a row of entries with different quality of service values, e.g., DSCP value, EXP value, corresponding to a particular PHB value. Consequently, the PHB value may be used to perform a single memory access to determine the quality of service values for a plurality of protocols where the quality of service values corresponds to the identified type of quality of service.
摘要翻译：一种方法，系统和计算机程序产品，用于将一种协议的服务领域的类型转换为多种协议。 DIFFerentiated SERVices网络中的入侵路由器（MPLS网络上的Diffserv）可以使用最大的努力来确定服务质量的类型，例如转发IP分组。可以基于所识别的服务质量类型来生成被称为希望行为（PHB）值的值。 PHB值可以用于索引到包括具有不同服务质量值的条目行的表，例如对应于特定PHB值的DSCP值，EXP值。因此，PHB值可用于执行单个存储器访问以确定多个协议的服务质量值，其中服务质量值对应于所识别的服务质量类型。

13. 发明授权

US06700883B1 Algorithm to bypass L4 processing in an internet protocol forwarding processor 有权
标题翻译：在互联网协议转发处理器中绕过L4处理的算法
公开(公告)号：US06700883B1
公开(公告)日：2004-03-02
申请号：US09543145
申请日：2000-04-05
申请人： Anthony Matteo Gallo , Brahmanand Kumar Gorti , Donald Newland Jones , Natarajan Vaidhyanathan , Colin Beaton Verrilli
发明人： Anthony Matteo Gallo , Brahmanand Kumar Gorti , Donald Newland Jones , Natarajan Vaidhyanathan , Colin Beaton Verrilli
IPC分类号： H04L1256
CPC分类号： H04L29/06 , H04L69/32
摘要： A controllable mechanism for by-passing Layer 4 (L4) classification is based on the insertion into a set of Layer 3 (L3) rules in an L3 lookup tree set of Layer 4 (L4) Classification Required Flags. The state of the L4 classification flag is set by comparing the L4 classification rule to an IP (Internet Protocol) lookup rule. Routing is accomplished by selecting which rule to apply to the data packet and reading the state of the corresponding L4 Classification Required Flag. In response to a first state of the corresponding L4 Classification Required Flag, an L4 classification is performed followed by a routing of the data packet. In response to a second state of the corresponding L4 Classification Required Flag performing a routing of said data packet. In a second embodiment, the method inserts into a set of L3 rules in L3 lookup means a set L4 Classification Required Flags and Global Flags. A first state of the L4 Classification Required Flag is set when a new rule is added to L4 classification means, the new rule being correlatable to a single entry in L3 lookup means. Routing is accomplished by selecting which rule to apply to the data packet and reading the state of the corresponding L4 classification required flag. In response to a first state of the corresponding L4 classification flag, a L4 classification is performed followed by a routing of the data packet. In response to a second state of the corresponding L4 classification flag, the state of the Global Flag is read, and in response to a first state of the Global flag, a L4 classification is performed followed by a routing of the data packet. In response to a second state of the Global Flag, the data packet is routed.
摘要翻译：用于旁路第4层（L4）分类的可控机制是基于在第4层（L4）分类要求标志的L3查找树集中插入到一组第3层（L3）规则中。通过将L4分类规则与IP（因特网协议）查找规则进行比较来设定L4分类标志的状态。通过选择应用于数据包的规则并读取相应的L4分类要求标志的状态来完成路由。响应于对应的L4分类要求标志的第一状态，执行L4分类，然后进行数据分组的路由。响应于相应的L4分类要求标志的第二状态来执行所述数据分组的路由。在第二实施例中，该方法在L3查找中插入一组L3规则，即集合L4分类要求标志和全局标志。当将新规则添加到L4分类装置时，设置L4分类要求标志的第一状态，新规则可与L3查找装置中的单个条目相关。通过选择应用于数据包的规则并读取相应的L4分类所需标志的状态来完成路由。响应对应的L4分类标志的第一状态，执行L4分类，然后进行数据分组的路由。响应对应的L4分类标志的第二状态，读取全局标志的状态，并且响应于全局标志的第一状态，执行L4分类，然后进行数据分组的路由。响应全局标志的第二状态，数据包被路由。

14. 发明授权

US06452921B1 Method and system within a computer network for maintaining source-route information at a router bypassed by shortcut communication 失效
标题翻译：计算机网络中的方法和系统，用于在通过快捷通信旁路的路由器上维护源路由信息
公开(公告)号：US06452921B1
公开(公告)日：2002-09-17
申请号：US09199071
申请日：1998-11-24
申请人： Cedell Adam Alexander, Jr. , Russell Eugene Gardo , Brahmanand Kumar Gorti , Olen Lee Stokes, Jr.
发明人： Cedell Adam Alexander, Jr. , Russell Eugene Gardo , Brahmanand Kumar Gorti , Olen Lee Stokes, Jr.
IPC分类号： H04L1228
CPC分类号： H04L45/10 , H04L12/4608 , H04L12/5601 , H04L2012/5617 , H04L2012/5668 , H04L2012/5669
摘要： In a data communication internetwork including a source station, an end station, and a default router for the source station, a default communication path including the default router is defined between the source station and the destination station. During operation of the data communication internetwork, a shortcut data communication path by passing the default router is established between the source station and the destination station, such that data packets transmitted by the source station are not received by the default router. After the shortcut communication path has been established, a control frame containing source-route information regarding the source station is transmitted to the router, and the source-route information is stored at the router. In this manner, the default router can efficiently direct data packets to the source station and facilitate the establishment of shortcut communication paths terminating at the source station even though the default router is bypassed by a shortcut communication path.
摘要翻译：在包括源站，终端站和用于源站的默认路由器的数据通信互联网络中，在源站和目的地站之间定义包括默认路由器的默认通信路径。在数据通信互联网的运行过程中，在源站与目的站之间建立通过缺省路由器的快捷数据通信路径，使得由源站发送的数据包不被默认路由器接收。快速通信路径建立后，将包含源站的源路由信息的控制帧发送给路由器，源路由信息存储在路由器上。以这种方式，默认路由器可以有效地将数据分组引导到源站，并且便于建立在源站终止的快捷通信路径，即使默认路由器被快捷通信路径旁路。

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