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1. 发明授权

US07889712B2 Methods and apparatus for providing loop free routing tables 有权
标题翻译：提供无循环路由表的方法和设备
公开(公告)号：US07889712B2
公开(公告)日：2011-02-15
申请号：US11318217
申请日：2005-12-23
申请人： Dheerendra Talur , Rex Fernando , Avneesh Sachdev , Derek Man-Kit Yeung
发明人： Dheerendra Talur , Rex Fernando , Avneesh Sachdev , Derek Man-Kit Yeung
IPC分类号： H04L12/28
CPC分类号： H04L45/48 , H04L45/00 , H04L45/18 , H04L45/54
摘要： A router is described that includes a routing table containing route information and a module to evaluate a route and detect a loop path associated with the route using the routing table. A process is described to detect and eliminate routing loops associated with recursive routes in a routing table, so as to provide a routing table that will be loop free.
摘要翻译：描述了路由器，其包括包含路由信息的路由表和用于评估路由并且使用路由表检测与路由相关联的循环路径的模块。描述了一种过程来检测和消除与路由表中的递归路由相关联的路由环路，以便提供将无循环的路由表。

2. 发明授权

US09350665B2 Congestion mitigation and avoidance 有权
标题翻译：阻塞和避免拥塞
公开(公告)号：US09350665B2
公开(公告)日：2016-05-24
申请号：US13601957
申请日：2012-08-31
申请人： Derek Man-Kit Yeung , Ali Sajassi , Hong Zhang
发明人： Derek Man-Kit Yeung , Ali Sajassi , Hong Zhang
IPC分类号： H04J1/16 , H04L12/803
CPC分类号： H04L47/125
摘要： In one embodiment, a method is provided for congestion mitigation. In this method, a congestion level of data flows along a path is monitored relative to a threshold. Here, each data flow is associated with a flow identifier. Based on detection that the congestion level exceeds the threshold, the flow identifier of a number (e.g., one or more) of the data flows is changed to a different flow identifier. This change results in the number of the data flows redirected to a different path. In an alternate embodiment, another method is provided for congestion avoidance. In this method, a data flow transmitted along a single path is received, and the data flow is split into multiple micro data flows. A different flow identifier is then assigned to each micro data flow. This change results in the multiple micro data flows distributed along multiple different paths.
摘要翻译：在一个实施例中，提供了一种用于拥塞缓解的方法。在该方法中，相对于阈值监视沿着路径的数据流的拥塞级别。这里，每个数据流与流标识符相关联。基于拥塞级别超过阈值的检测，数据流（例如，一个或多个）的流标识被改变为不同的流标识符。此更改导致重定向到不同路径的数据流的数量。在替代实施例中，提供了另一种用于拥塞避免的方法。在该方法中，接收沿着单个路径发送的数据流，并将数据流分割为多个微数据流。然后将不同的流标识符分配给每个微数据流。这种变化导致沿着多个不同路径分布的多个微数据流。

3. 发明申请

US20140064082A1 CONGESTION MITIGATION AND AVOIDANCE 有权
标题翻译：紧急缓解和避免
公开(公告)号：US20140064082A1
公开(公告)日：2014-03-06
申请号：US13601957
申请日：2012-08-31
申请人： Derek Man-Kit Yeung , Ali Sajassi , Hong Zhang
发明人： Derek Man-Kit Yeung , Ali Sajassi , Hong Zhang
IPC分类号： H04L12/803
CPC分类号： H04L47/125
摘要： In one embodiment, a method is provided for congestion mitigation. In this method, a congestion level of data flows along a path is monitored relative to a threshold. Here, each data flow is associated with a flow identifier. Based on detection that the congestion level exceeds the threshold, the flow identifier of a number (e.g., one or more) of the data flows is changed to a different flow identifier. This change results in the number of the data flows redirected to a different path. In an alternate embodiment, another method is provided for congestion avoidance. In this method, a data flow transmitted along a single path is received, and the data flow is split into multiple micro data flows. A different flow identifier is then assigned to each micro data flow. This change results in the multiple micro data flows distributed along multiple different paths.
摘要翻译：在一个实施例中，提供了一种用于拥塞缓解的方法。在该方法中，相对于阈值监视沿着路径的数据流的拥塞级别。这里，每个数据流与流标识符相关联。基于拥塞级别超过阈值的检测，数据流（例如，一个或多个）的流标识被改变为不同的流标识符。此更改导致重定向到不同路径的数据流的数量。在替代实施例中，提供了另一种用于拥塞避免的方法。在该方法中，接收沿着单个路径发送的数据流，并将数据流分割为多个微数据流。然后将不同的流标识符分配给每个微数据流。这种变化导致沿着多个不同路径分布的多个微数据流。

4. 发明授权

US07742437B2 CSNP cache for efficient periodic CSNP in a router 有权
标题翻译： CSNP缓存用于路由器中有效的周期性CSNP
公开(公告)号：US07742437B2
公开(公告)日：2010-06-22
申请号：US11280950
申请日：2005-11-15
申请人： Derek Man-Kit Yeung , Christian Hopps , Nair Venugopal , Anthony Li
发明人： Derek Man-Kit Yeung , Christian Hopps , Nair Venugopal , Anthony Li
IPC分类号： H04L12/28
CPC分类号： H04L45/00 , H04L45/02 , H04L45/54 , H04L45/60
摘要： A networking device such as a router may include, in one embodiment, a database storing a plurality of link state entries, and a cache operatively coupled with the database, the cache storing entries relating to the link state entries of the database. The networking device may also include a module for sending, over a network, packets including link state data, the module operatively coupled with the cache. In one example, the module accesses the cache to create one or more packets including link state data. Embodiments of the invention may be used for forming CSNP packets (complete sequence number packets) without the need for having to repeatedly walking a link state database in order to form the CNSP packets.
摘要翻译：在一个实施例中，诸如路由器的联网设备可以包括存储多个链路状态条目的数据库和与数据库可操作地耦合的高速缓存，存储与数据库的链接状态条目有关的条目。网络设备还可以包括用于通过网络发送包括链路状态数据的分组的模块，模块与高速缓存操作耦合。在一个示例中，模块访问高速缓存以创建包括链路状态数据的一个或多个分组。本发明的实施例可以用于形成CSNP分组（完整序列号分组），而不需要不必重复地步行链路状态数据库以形成CNSP分组。

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