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1. 发明授权

US06975588B1 Method and apparatus for computing a path through a bidirectional line switched 失效
标题翻译：用于计算通过双向线路切换的路径的方法和装置
公开(公告)号：US06975588B1
公开(公告)日：2005-12-13
申请号：US09872176
申请日：2001-06-01
申请人： Suresh Katukam , Venkataraman Anand
发明人： Suresh Katukam , Venkataraman Anand
IPC分类号： G01R31/08 , H04L12/43 , H04Q3/66
CPC分类号： H04L12/43 , H04Q3/66 , H04Q2213/13103 , H04Q2213/13106 , H04Q2213/13141 , H04Q2213/13144 , H04Q2213/13292 , H04Q2213/13392 , H04Q2213/13399
摘要： Methods and apparatus for automatically creating a path through a bi-directional line switched ring which uses common time slots are disclosed. According to one aspect of the present invention, an apparatus for creating a path between first and second nodes through a third node using first and second links includes a querying device, a comparator, and a routing device. The querying device identifies a first time slot of the first link for transferring data from the first node to the third node, and also identifies a second time slot associated with the second link for transferring data between the third node and the second node. The comparator determines when the first time slot and the second time slot are consistent, and the routing device computes the path between the first and second nodes using the first and second time slots when the first and second time slots are consistent.
摘要翻译：公开了通过使用公共时隙的双向线路交换环自动创建路径的方法和装置。根据本发明的一个方面，一种使用第一和第二链路通过第三节点创建在第一和第二节点之间的路径的装置包括查询装置，比较器和路由装置。查询设备识别第一链路的第一时隙，用于将数据从第一节点传送到第三节点，并且还识别与第二链路相关联的第二时隙，用于在第三节点和第二节点之间传送数据。比较器确定第一时隙和第二时隙何时一致，并且当第一和第二时隙一致时，路由设备使用第一和第二时隙计算第一和第二节点之间的路径。

2. 发明授权

US06631136B1 Methods and apparatus for data communication using a hybrid transport switching protocol 有权
标题翻译：使用混合传输交换协议进行数据通信的方法和装置
公开(公告)号：US06631136B1
公开(公告)日：2003-10-07
申请号：US09383714
申请日：1999-08-26
申请人： Noor A. Chowdhury , Paul G. Wallner , Suresh Katukam
发明人： Noor A. Chowdhury , Paul G. Wallner , Suresh Katukam
IPC分类号： H04L1228
CPC分类号： H04L45/02 , H04L45/04 , H04L45/124
摘要： A data communication method enables the transfer of data having different protocols without requiring increased bandwidth in the transmission line. The system efficiently re-routes data in the event of network alterations and determines a fast and efficient way to transport data based on the then-existing network structure using link-state and distance vector techniques.
摘要翻译：数据通信方法能够传输具有不同协议的数据，而不需要增加传输线中的带宽。在网络改变的情况下，系统有效地重新路由数据，并且使用链路状态和距离向量技术确定基于当前存在的网络结构传输数据的快速和有效的方式。

3. 发明授权

US07542414B1 Computing a diverse path while providing optimal usage of line protected links 有权
标题翻译：计算不同的路径，同时提供线路保护链路的最佳使用
公开(公告)号：US07542414B1
公开(公告)日：2009-06-02
申请号：US10698700
申请日：2003-10-31
申请人： Suresh Katukam
发明人： Suresh Katukam
IPC分类号： G01R31/08 , G06F11/00
CPC分类号： H04L12/437 , H04L45/00 , H04L45/22 , H04L45/28 , H04Q11/0062 , H04Q2011/0073 , H04Q2011/0081
摘要： Methods and apparatus for enabling line-protected links to be included in path-protected segments of a unidirectional path-switched ring are disclosed. According to one aspect of the present invention, a method for computing a circuit path that includes a primary path between a start node and a destination node as well as an alternate path includes determining the primary path using a routing algorithm. The primary path includes a protectable segment which has a first line-protected link. The method also includes creating the alternate path using the routing algorithm. Creating the alternate path includes creating the alternate path between the start node and the end node with the alternate path arranged to protect at least the protectable segment which includes the first line-protected link. In one embodiment, the alternate path is created including the first line-protected link.
摘要翻译：公开了用于使线路保护链路能够包括在单向路径交换环的路径保护段中的方法和装置。根据本发明的一个方面，一种用于计算包括起始节点和目的地节点之间的主路径以及备选路径的电路路径的方法包括使用路由算法确定主路径。主路径包括具有第一线路保护链路的可保护段。该方法还包括使用路由算法创建备用路径。创建备用路径包括在起始节点和末端节点之间创建备用路径，其中备用路径被布置为至少保护包括第一线路保护链路的可保护段。在一个实施例中，创建包括第一线路保护链路的备用路径。

4. 发明授权

US07490165B1 Method and apparatus for computing a path in a system with nodal and link diverse constraints 有权
标题翻译：用于计算具有节点和链路多种约束的系统中的路径的方法和装置
公开(公告)号：US07490165B1
公开(公告)日：2009-02-10
申请号：US09909049
申请日：2001-07-18
申请人： Suresh Katukam , Venkataraman Anand
发明人： Suresh Katukam , Venkataraman Anand
IPC分类号： G06F15/173 , H04L1/00
CPC分类号： H04L12/462 , H04L45/00
摘要： Methods and apparatus for defining an alternate circuit path within a network are described. According to one aspect of the present invention, a device for computing circuit paths between a first node and a second node within a network that has a plurality of elements includes a route generator and a list mechanism. The route generator computes a primary circuit path between the first node and the second node such that the primary circuit path includes a first element. The list mechanism identifies the first element as being inaccessible to an alternate circuit path. Using the list mechanism, the route generator computes an alternate circuit path that does not include the first element identified by the list mechanism. In one embodiment, the first element is a link. In another embodiment, the first element is a node.
摘要翻译：描述了用于在网络内定义备用电路路径的方法和装置。根据本发明的一个方面，一种用于计算具有多个元素的网络内的第一节点和第二节点之间的电路路径的装置包括路由发生器和列表机制。路由发生器计算第一节点和第二节点之间的主要电路路径，使得主电路路径包括第一元件。列表机制将第一个元素标识为不可访问的备用电路路径。使用列表机制，路由生成器计算不包括由列表机制标识的第一个元素的备用电路路径。在一个实施例中，第一元件是链接。在另一实施例中，第一元件是节点。

5. 发明授权

US07082124B1 Method and apparatus for computing primary and alternate paths in mixed protection domain networks 失效
标题翻译：用于计算混合保护域网络中主要和替代路径的方法和装置
公开(公告)号：US07082124B1
公开(公告)日：2006-07-25
申请号：US09903217
申请日：2001-07-10
申请人： Suresh Katukam
发明人： Suresh Katukam
IPC分类号： H04L12/66
CPC分类号： H04J3/14
摘要： Methods and apparatus for automatically routing paths in a network with a mixed protection domain. According to one aspect, a method for computing a primary path within a network includes identifying a plurality of potential paths which are characteristically similar and are arranged between the source node and the destination node and selecting a first potential path from the plurality of potential paths which are characteristically similar. The first potential path is considered for use as an actual path between the source node and the destination node, while the other potential paths included in the plurality of potential paths which are characteristically similar are not considered for use as the actual path between the source node and the destination node.
摘要翻译：在具有混合保护域的网络中自动路由路径的方法和装置。根据一个方面，一种用于计算网络内的主要路径的方法包括识别特征相似并且被布置在源节点和目的地节点之间的多个潜在路径，并且从多个潜在路径中选择第一潜在路径，特征相似。第一个潜在路径被认为用作源节点和目的地节点之间的实际路径，而包含在特征相似的多个潜在路径中的其他潜在路径不被认为用作源节点之间的实际路径和目标节点。

6. 发明申请

US20090172190A1 LINK STATE PROTOCOL ROUTING MESSAGE CONTAINMENT 有权
标题翻译：链接协议路由消息容量
公开(公告)号：US20090172190A1
公开(公告)日：2009-07-02
申请号：US11967931
申请日：2007-12-31
申请人： Navindra Yadav , Suresh Katukam , Abhay Roy
发明人： Navindra Yadav , Suresh Katukam , Abhay Roy
IPC分类号： G06F15/16
CPC分类号： H04W40/30 , H04L45/025 , H04L45/04
摘要： In one example embodiment, a system and method are shown that includes calculating a first SPF tree for a first device, the first SPF tree including a root node and a first child node, the first device being the root node of the first SPF tree. Additionally, the system and method may include calculating a second SPF tree for a second device that is a neighbor of the first device, the second SPF tree including a root node and a first child node, the second device being the root node of the second SPF tree. Further, the system and method may include building a set of interested nodes including the second device, if the first child node if the first SPF tree and the first child node of the second SPF tree are distinct.
摘要翻译：在一个示例实施例中，示出了系统和方法，其包括为第一设备计算第一SPF树，第一SPF树包括根节点和第一子节点，第一设备是第一SPF树的根节点。另外，该系统和方法可以包括为作为第一设备的邻居的第二设备计算第二SPF树，第二SPF树包括根节点和第一子节点，第二设备是第二设备的根节点 SPF树。此外，所述系统和方法可以包括：如果第一子节点（如果第一SPF树和第二SPF树的第一子节点是不同的），则建立包括第二设备的一组感兴趣的节点。

7. 发明申请

US20060104199A1 Minimizing single points of failure in paths with mixed protection schemes 有权
公开(公告)号：US20060104199A1
公开(公告)日：2006-05-18
申请号：US10986675
申请日：2004-11-12
申请人： Suresh Katukam , Pradeep Singh
发明人： Suresh Katukam , Pradeep Singh
IPC分类号： H04J1/16
CPC分类号： H04L12/43 , H04J2203/0053 , H04J2203/006 , H04L45/00 , H04L45/22 , H04L45/28
摘要： Methods and apparatus for substantially minimizing single points of failure for circuit paths in networks with mixed protection schemes are disclosed. According to one aspect of the present invention, a method for routing circuit paths between a source and a destination of a network includes identifying a first available circuit path between the source and the destination. The first available circuit path includes a first plurality of links which each have an associated protection type. The method also includes determining a number protection changes associated with the first plurality of links, and assigning a first metric to the first available path that is based on the number of protection changes. Finally, the method includes identifying a selected available path to be used to pass information between the source and the destination based at least in part on the first metric.

8. 发明授权

US07031253B1 Method and apparatus for computing a path through specified elements in a network 失效
标题翻译：用于计算网络中指定元素的路径的方法和装置
公开(公告)号：US07031253B1
公开(公告)日：2006-04-18
申请号：US09872141
申请日：2001-06-01
申请人： Suresh Katukam , Venkataraman Anand
发明人： Suresh Katukam , Venkataraman Anand
IPC分类号： G01R31/08
CPC分类号： H04L45/12 , H04L41/0806 , H04L41/509 , H04L45/04
摘要： Methods and apparatus for automatically creating a circuit path that includes specified elements are disclosed. According to one aspect of the present embodiment, a method for computing a circuit path between a source node and a destination node of a network includes identifying at least a first element that is to be traversed by the circuit path such that the path passes from the source node, traverses the first element, then passes to the destination node. The method also includes routing a first segment of the circuit path automatically such that the source node and the first element are components of the first segment. In one embodiment, routing the first segment automatically includes routing the first segment automatically using a shortest path first algorithm.
摘要翻译：公开了用于自动创建包括指定元件的电路路径的方法和装置。根据本实施例的一个方面，一种用于计算网络的源节点和目的地节点之间的电路路径的方法包括识别至少要由电路路径穿过的第一元素，使得路径从源节点，遍历第一个元素，然后传递到目标节点。该方法还包括自动路由电路路径的第一段，使得源节点和第一元素是第一段的组件。在一个实施例中，自动路由第一段包括使用最短路径优先算法自动路由第一段。

9. 发明授权

US08755319B2 Host route convergence 有权
标题翻译：主机路由收敛
公开(公告)号：US08755319B2
公开(公告)日：2014-06-17
申请号：US12027977
申请日：2008-02-07
申请人： Suresh Katukam , Navindra Yadav , Shree Murthy , Abhay Roy
发明人： Suresh Katukam , Navindra Yadav , Shree Murthy , Abhay Roy
IPC分类号： H04L12/26
CPC分类号： H04W40/36 , H04L45/025
摘要： In one embodiment, detecting a host device on a port of a forwarder switch in a network, detecting a movement of the host device from a first forwarder switch to a second forwarder switch, and multicast broadcasting an updated device information for the host device to a convergence group switches and a proximity group switches, where the convergence group switches includes switches in the network that are not configured as forwarder switches, and the proximity group switches include forwarder switches grouped together based on radio proximity is provided.
摘要翻译：在一个实施例中，检测网络中的转发器交换机的端口上的主机设备，检测主机设备从第一转发器交换机到第二转发器交换机的移动，以及多播广播主机设备的更新设备信息到汇聚组交换机和接近组交换机，其中收敛组交换机包括未配置为转发器交换机的网络中的交换机，并且提供接近组交换机包括基于无线电接近度分组在一起的转发器交换机。

10. 发明授权

US08711729B2 Host route convergence based on sequence values 有权
标题翻译：基于序列值的主机路由收敛
公开(公告)号：US08711729B2
公开(公告)日：2014-04-29
申请号：US12013176
申请日：2008-01-11
申请人： Suresh Katukam , Navindra Yadav , Venkata Tanikella , Abhay Roy
发明人： Suresh Katukam , Navindra Yadav , Venkata Tanikella , Abhay Roy
IPC分类号： H04L12/28
CPC分类号： H04L45/70 , H04W40/36
摘要： In an example embodiment, a method is provided that assigns a sequence value to a host. The host is identified by a host network layer address. After the assignment, the host network layer address and the sequence value are included in an advertisement for transmission. In another example embodiment, another method is provided. Here, a first sequence value associated with the host network layer address is received from a network device. In addition, a second sequence value associated with the same host network layer address is received from a different network device. The first sequence value is ranked relative to the second sequence value and data is transmitted to the network device based on the ranking.
摘要翻译：在示例实施例中，提供了向主机分配序列值的方法。主机由主机网络层地址标识。在分配之后，主机网络层地址和序列值被包括在用于传输的广告中。在另一示例实施例中，提供了另一种方法。这里，从网络设备接收与主机网络层地址相关联的第一序列值。此外，从不同的网络设备接收与相同主机网络层地址相关联的第二序列值。第一序列值相对于第二序列值排序，并且基于排名将数据发送到网络设备。

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