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31. 发明申请

US20120106956A1 GMPLS Signaling for Networks Having Multiple Multiplexing Levels 有权
标题翻译：具有多重复用级别的网络的GMPLS信令
公开(公告)号：US20120106956A1
公开(公告)日：2012-05-03
申请号：US12977696
申请日：2010-12-23
申请人： Rajan Rao , Khuzema Pithewan , Ashok Kunjidhapatham , Biao Lu , Mohit Misra
发明人： Rajan Rao , Khuzema Pithewan , Ashok Kunjidhapatham , Biao Lu , Mohit Misra
IPC分类号： H04J14/08
CPC分类号： H04J3/1652 , H04J3/12 , H04J3/14 , H04J2203/006 , H04J2203/0089 , H04L45/50
摘要： A method comprising the steps of receiving, with circuitry at a first node, a signal indicative of a request to set up an optical channel data unit label switched path between the first node and a second node in a network. Time slots for a plurality of types of signals to be transmitted from the first node to the second node are reserved, and a set up message is transmitted from the first node to the second node. The set up message identifies the plurality of signal types and the reserved time slots. The optical channel data unit label switched path is then provided between the first and second nodes.
摘要翻译：一种方法，包括以下步骤：在第一节点处的电路接收指示在网络中的第一节点和第二节点之间建立光信道数据单元标签交换路径的请求的信号。保留要从第一节点发送到第二节点的多种类型的信号的时隙，并且从第一节点向第二节点发送建立消息。建立消息识别多个信号类型和保留的时隙。然后，在第一和第二节点之间提供光信道数据单元标签交换路径。

32. 发明授权

US08848712B2 Distributed RSVP-TE in a multi-chassis node architecture 有权
标题翻译：分布式RSVP-TE在多机箱节点架构中
公开(公告)号：US08848712B2
公开(公告)日：2014-09-30
申请号：US12538315
申请日：2009-08-10
申请人： Ashok Kunjidhapatham , Rajan Rao , Biao Lu , Mohit Misra , Sri Mohana Satya Srinivas Singamsetty
发明人： Ashok Kunjidhapatham , Rajan Rao , Biao Lu , Mohit Misra , Sri Mohana Satya Srinivas Singamsetty
IPC分类号： H04L12/28 , G06F15/173 , H04L12/46 , H04L12/913 , H04L12/775 , H04L12/931 , H04Q11/00
CPC分类号： H04L47/724 , H04L12/4633 , H04L45/583 , H04L49/40 , H04Q2011/0039
摘要： A network device includes a multi-chassis system in which each chassis includes a RSVP-TE protocol stack that may provide RSVP-TE services for LSP tunnels associated with each chassis. The multi-chassis system may include an administrative chassis. The administrative chassis may forward RSVP messages to other chassis of the network device. The administrative chassis may encapsulate the RSVP messages with a chassis address. The other chassis may de-encapsulate the RSVP messages and process the RSVP messages according to the RSVP-TE protocol. The administrative chassis may obtain session information associated with other chassis based on RSVP messages received. The administrative chassis may manage adjacency mechanisms and failure and recovery mechanisms. The multi-chassis system including the distributed RSVP-TE protocol stacks may minimize scalability issues and improve performance when high-capacity routing and/or switching services are needed.
摘要翻译：网络设备包括多机箱系统，其中每个机箱包括RSVP-TE协议栈，其可以为与每个机箱相关联的LSP隧道提供RSVP-TE服务。多机箱系统可以包括管理机箱。管理机箱可以将RSVP消息转发到网络设备的其他机箱。管理机箱可以封装具有机箱地址的RSVP消息。另一个机箱可以解封装RSVP消息，并根据RSVP-TE协议对RSVP消息进行处理。基于接收的RSVP消息，管理机箱可以获取与其他机箱相关联的会话信息。管理机箱可以管理邻接机制，故障恢复机制。包括分布式RSVP-TE协议栈的多机箱系统可以在需要大容量路由和/或交换服务时最小化可扩展性问题并提高性能。

33. 发明授权

US09923805B2 Backward-recursive path computation using RSVP-TE 有权
公开(公告)号：US09923805B2
公开(公告)日：2018-03-20
申请号：US13849138
申请日：2013-03-22
申请人： Snigdho Chandra Bardalai , Rajan Rao , Charles Andrew Palmer Moorwood
发明人： Snigdho Chandra Bardalai , Rajan Rao , Charles Andrew Palmer Moorwood
IPC分类号： G06F15/16 , H04L12/707 , H04L12/715 , H04L12/723
CPC分类号： H04L45/22 , H04L45/04 , H04L45/50
摘要： One or more nodes, in a network, are configured to transmit a message, for computing diverse paths through the network from a first domain to a second domain using a Resource Reservation Protocol-Traffic Engineering (RSVP-TE) signaling protocol; generate at least one data structure that identifies multiple diverse entry points to the second domain; transmit the at least one data structure toward the first domain; complete the at least one data structure to form at least one completed data structure; use a first data structure, of the at least one completed data structure, to compute a primary path from the first domain to the second domain; and use a second data structure, of the at least one completed data structure, to compute a secondary path from the first domain to the second domain.

34. 发明申请

US20050195807A1 Systems and methods for providing multi-layer protection switching within a sub-networking connection 有权
标题翻译：在子网络连接中提供多层保护倒换的系统和方法
公开(公告)号：US20050195807A1
公开(公告)日：2005-09-08
申请号：US10791506
申请日：2004-03-02
申请人： Rajan Rao , Ambrose Stone , Sridhar Vasireddy , Christopher Roller
发明人： Rajan Rao , Ambrose Stone , Sridhar Vasireddy , Christopher Roller
IPC分类号： H04J3/14 , H04Q11/04 , H04L12/50
CPC分类号： H04J3/14
摘要： A subnetwork connection system is provided that includes line modules configures to receive traffic signals over bridged, individual corresponding channels. The line modules are grouped into sets at a lower protection layer, while the sets of line modules are organized into working legs and protection legs at an upper protection layer. The line modules are activated and deactivated based on different upper and lower protection schemes associated with the upper and lower protection layers. The subconnection system further includes state maps associated with each of the line modules. The state maps store state data that activates and deactivates the line modules. The state maps are updates in accordance with the lower protection scheme to permit intra-leg switching between the line modules in one of the working and protection legs. The state map is also updated in accordance with the upper protection scheme to perform inter-leg switching between a first line module in one of the working and protection legs and a second line module in the other of the working and protection legs. The subnetwork connection system also includes a network control module interconnected with the line modules. The control module performs inter-leg switching by updating the state data in the state maps for corresponding line modules in associated working and protection legs.
摘要翻译：提供了一种子网连接系统，其包括线路模块配置以在桥接的各个对应的信道上接收交通信号。线路模块在较低的保护层被分组成集合，而线路模块组被组织成上保护层的工作腿和保护腿。基于与上保护层和下保护层相关联的不同的上和下保护方案，线路模块被激活和去激活。子连接系统还包括与每个线路模块相关联的状态图。状态映射存储状态数据，激活和停用线路模块。状态图是根据较低保护方案的更新，以允许在工作和保护腿之一之间的线路模块之间的腿内切换。状态图还根据上保护方案进行更新，以在工作和保护腿中的一个中的第一线路模块和另一个工作和保护腿中的第二线路模块之间进行腿间切换。子网连接系统还包括与线路模块互连的网络控制模块。控制模块通过在关联的工作和保护腿中的相应线路模块的状态图中更新状态数据来执行腿间切换。

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