专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

61. 发明授权

US07929557B2 Summarization and longest-prefix match within MPLS networks 有权
标题翻译： MPLS网络中的汇总和最长前缀匹配
公开(公告)号：US07929557B2
公开(公告)日：2011-04-19
申请号：US12403496
申请日：2009-03-13
申请人： Kireeti Kompella
发明人： Kireeti Kompella
IPC分类号： H04L12/28 , H04L12/56
CPC分类号： H04L29/12283 , H04L29/12018 , H04L45/04 , H04L45/50 , H04L45/507 , H04L61/10 , H04L61/2061 , H04L69/22
摘要： In general, techniques are described for summarizing label mappings and thereby enabling longest-prefix match within Multi-Protocol Label Switching (MPLS) networks. More specifically, a first router included within a first area of a network comprises a control unit that maintains a label space defining labels available for mapping to a plurality of addresses assigned to network devices within the network. The control unit reserves a contiguous set of the labels of the label space and maps the contiguous set of labels to first area addresses. The first area addresses include those addresses of the plurality of addresses available for assignment to network devices within the first area. The first router also includes an interface card that transmits, to a second router of a second area of the network, an advertisement that advertises a summarized version of the mapping between the contiguous set of labels and the first area addresses.
摘要翻译：一般来说，描述了用于总结标签映射的技术，从而在多协议标签交换（MPLS）网络中实现最长前缀匹配。更具体地，包括在网络的第一区域内的第一路由器包括控制单元，其维护标签空间，该标签空间定义可用于映射到分配给网络内的网络设备的多个地址的标签。控制单元保留标签空间的一组连续的标签，并将连续的标签集合映射到第一区域地址。第一区域地址包括可用于分配给第一区域内的网络设备的多个地址中的那些地址。第一路由器还包括一个接口卡，该接口卡向网络的第二区域的第二路由器发送广告，该广告在连续的标签集合与第一区域地址之间通告该映射的汇总版本。

62. 发明授权

US07620069B2 Transport networks supporting virtual private networks, and configuring such networks 有权
标题翻译：传输网络支持虚拟专用网络，并配置这样的网络
公开(公告)号：US07620069B2
公开(公告)日：2009-11-17
申请号：US11519110
申请日：2006-09-11
申请人： Kireeti Kompella
发明人： Kireeti Kompella
IPC分类号： H04L12/66
CPC分类号： H04L41/084 , H04L45/00 , H04L45/10 , H04L45/50
摘要： A layer 2 transport network, and components thereof, supporting virtual network functionality among customer edge devices. Virtual private network configuration can be accomplished with merely local intervention by preprovisioning extra channel (or circuit) identifiers at each customer edge device and by advertising label base and range information corresponding to a list of channel (or circuit) identifiers.
摘要翻译：第2层传输网络及其组件，在客户边缘设备之间支持虚拟网络功能。虚拟专用网络配置可以仅通过在每个客户边缘设备处预先设定额外信道（或电路）标识符的局部干预来实现，并且通过对应于信道（或电路）标识符列表的标签基础和范围信息进行广告来实现。

63. 发明申请

US20090175274A1 TRANSMISSION OF LAYER TWO (L2) MULTICAST TRAFFIC OVER MULTI-PROTOCOL LABEL SWITCHING NETWORKS 有权
标题翻译：通过多协议标签交换网络传输层二（L2）多媒体业务
公开(公告)号：US20090175274A1
公开(公告)日：2009-07-09
申请号：US12404786
申请日：2009-03-16
申请人： Rahul Aggarwal , Yakov Rekhter , Kireeti Kompella
发明人： Rahul Aggarwal , Yakov Rekhter , Kireeti Kompella
IPC分类号： H04L12/56
CPC分类号： H04L12/1886 , H04L45/16 , H04L45/50
摘要： Principles of the invention relate to techniques for transmission of Layer 2 (L2) traffic over a point to multi-point (P2MP) label switched path (LSP) within a multi-protocol Label Switching (MPLS) network. A source or ingress network device may implement the techniques to connect multiple L2 interfaces to a P2MP LSP within an MPLS network via a P2MP Pseudo-Wire (PW) mechanism that emulates delivery of L2 data units over a packet switched network, such as the MPLS network. The ingress network device first establishes the P2MP LSP and then connects two or more L2 interfaces to the P2MP LSP via the P2MP PW mechanism. Egress network devices may also implement the techniques to terminate the P2MP LSP and de-multiplex traffic arriving via multiple P2MP PWs carried over the same P2MP LSP.
摘要翻译：本发明的原理涉及用于在多协议标签交换（MPLS）网络内的点到多点（P2MP）标签交换路径（LSP）上传输第2层（L2）业务的技术。源或入口网络设备可以实现通过P2MP伪线（PW）机制将多个L2接口连接到MPLS网络内的P2MP LSP的技术，所述P2MP伪线（PW）机制通过分组交换网络（诸如MPLS）模拟L2数据单元的传送网络。入口网络设备首先建立P2MP LSP，然后通过P2MP PW机制将两个或多个L2接口连接到P2MP LSP。出口网络设备还可以实现终止P2MP LSP的技术，并对通过相同P2MP LSP承载的多个P2MP PW到达的流量进行解复用。

64. 发明授权

US07463597B1 Spanning tree protocol synchronization within virtual private networks 有权
标题翻译：虚拟专用网络内的生成树协议同步
公开(公告)号：US07463597B1
公开(公告)日：2008-12-09
申请号：US11058906
申请日：2005-02-16
申请人： Kireeti Kompella
发明人： Kireeti Kompella
IPC分类号： H04L12/28
CPC分类号： H04L12/462
摘要： Loop detection information, such as information associated with the Spanning Tree Protocol (STP), is synchronized within virtual private networks. A routing protocol, such as the Border Gateway Protocol (BGP), is extended in a manner that allows STP information or other loop detection information to be opaquely communicated between routing devices across an intermediate network. These techniques may, for example, be useful in environments where Virtual Private LAN Service (VPLS) is run through one or more intermediate networks.
摘要翻译：诸如与生成树协议（STP）相关联的信息的环路检测信息在虚拟专用网络内同步。诸如边界网关协议（BGP）的路由协议以允许STP信息或其他环路检测信息在中间网络之间的路由设备之间不透明地传送的方式被扩展。例如，这些技术可以在虚拟专用LAN服务（VPLS）通过一个或多个中间网络运行的环境中有用。

65. 发明授权

US09246801B1 Transmitting packet label contexts within computer networks 有权
标题翻译：在计算机网络内传输分组标签上下文
公开(公告)号：US09246801B1
公开(公告)日：2016-01-26
申请号：US12419507
申请日：2009-04-07
申请人： Kireeti Kompella
发明人： Kireeti Kompella
IPC分类号： H04L12/28 , H04L12/723 , H04L12/721 , H04Q11/00 , H04L12/46
CPC分类号： H04L45/507 , H04L12/4645 , H04L45/50 , H04L45/68 , H04Q2011/0077
摘要： In general, techniques are described for transmitting context information defining contexts for packet labels in a network. More specifically, a network device, e.g., a router, implements the context transmission techniques to facilitate debugging or troubleshooting of the network. The network device may comprise an interface card that receives a Multi-Protocol Label Switching (MPLS) data unit from another network device in accordance with a label switching protocol. The data unit may include a label stack affixed to a payload. The label stack may include one or more MPLS labels and context information associated with at least one of these labels, The interface card may, when forwarding the data unit, parse the data unit to determine the context information and then forward the data unit in accordance with these MPLS labels. A control unit included within the network device may record the forwarding of the data unit and the determined context information.
摘要翻译：通常，描述了用于传送定义网络中的分组标签的上下文的上下文信息的技术。更具体地，网络设备（例如，路由器）实现上下文传输技术以便于网络的调试或故障排除。网络设备可以包括接口卡，其根据标签交换协议从另一个网络设备接收多协议标签交换（MPLS）数据单元。数据单元可以包括固定到有效载荷上的标签堆栈。标签堆栈可以包括与这些标签中的至少一个相关联的一个或多个MPLS标签和上下文信息。接口卡可以在转发数据单元时解析数据单元以确定上下文信息，然后依次转发数据单元使用这些MPLS标签。包括在网络设备内的控制单元可以记录数据单元的转发和确定的上下文信息。

66. 发明授权

US09007956B2 Communicating constraint information for determining a path subject to such constraints 有权
标题翻译：通信约束信息用于确定受这种限制的路径
公开(公告)号：US09007956B2
公开(公告)日：2015-04-14
申请号：US13093924
申请日：2011-04-26
申请人： Kireeti Kompella
发明人： Kireeti Kompella
IPC分类号： H04L12/28 , H04L12/723 , H04L12/751 , H04L12/733 , H04L12/721
CPC分类号： H04L45/50 , H04L45/02 , H04L45/20 , H04L45/62
摘要： Path determination constraints may be encoded in the form of a program having one or more instructions. Each of instructions may include an operation code, and operands (or pointers to locations where operands are stored). In this way, an extensible, interoperable way for a nodes (e.g., label-switching routers) to communicate constraints within a network is provided. Such constraints may be inserted (e.g., as one or more CONSTRAINT objects) into signaling messages (e.g., a PATH RSVP message). By enabling the signaling of constraints, the determination of constraint-based (label-switched) paths can be distributed among a number of (label-switching) routers or other nodes. Upon receiving a message with constraints (e.g., a CONSTRAINT object(s)), a node may (i) ignore the constraints if the node is a tail-end node (label-switching router), (ii) apply the constraints to a link if the next hop in the (label-switched) path is strict, and/or (iii) perform a constraint-based path determination to a next hop if the next hop is loose.
摘要翻译：路径确定约束可以以具有一个或多个指令的程序的形式进行编码。每个指令可以包括操作码和操作数（或指向存储操作数的位置的指针）。以这种方式，提供了用于节点（例如，标签交换路由器）在网络内传送约束的可扩展的可互操作的方式。可以将这样的约束（例如，作为一个或多个CONSTRAINT对象）插入信令消息（例如，PATH RSVP消息）中。通过启用约束的信令，可以在多个（标签交换）路由器或其他节点之间分配基于约束的（标签交换）路径的确定。在接收到具有约束的消息（例如，CONSTRAINT对象）时，如果节点是尾端节点（标签交换路由器），则节点可以（i）忽略约束，（ii）将约束应用于如果（标签交换）路径中的下一跳是严格的，和/或（iii）如果下一跳是松散的，则对下一跳执行基于约束的路径确定。

67. 发明授权

US08798074B1 Packet queueing within ring networks 有权
标题翻译：环网内的数据包排队
公开(公告)号：US08798074B1
公开(公告)日：2014-08-05
申请号：US13275059
申请日：2011-10-17
申请人： Kireeti Kompella , Pradeep Sindhu , Jean-Marc Frailong , David J. Ofelt
发明人： Kireeti Kompella , Pradeep Sindhu , Jean-Marc Frailong , David J. Ofelt
IPC分类号： H04L12/28 , H04L12/54 , H04L12/56
CPC分类号： H04L12/5693 , H04L12/437 , H04L47/10 , H04L47/50
摘要： In general, techniques are described for packet queuing within ring networks. In accordance with the techniques, a network device of a ring network comprises a memory having a different queue for each order-dependent pair of the network devices. Each pair represents a different order-dependent combination of the network devices that includes an ingress network device that provides an ingress to the ring network and an egress network device that provides an egress from the ring network. The network device further comprises an interface for receiving a packet from a neighboring one of the plurality of network devices and a control unit that, in response to receiving the packet, stores the packet to one of the queues based on which network devices is the ingress and which network device is the egress for the packet. The control unit forwards the stored packet via the ring network according to a scheduling algorithm.
摘要翻译：一般来说，技术描述为环形网络内的数据包排队。根据这些技术，环形网络的网络设备包括具有针对网络设备的每个顺序依赖对的不同队列的存储器。每对代表网络设备的不同顺序组合，其包括向环网提供入口的入口网络设备和从环网提供出口的出口网络设备。所述网络设备还包括用于从所述多个网络设备中的相邻的一个网络设备接收分组的接口和响应于接收到所述分组而将所述分组存储到所述队列中的一个基于哪个网络设备是所述入口的控制单元哪个网络设备是分组的出口。控制单元根据调度算法经由环网转发存储的分组。

68. 发明授权

US08687629B1 Fabric virtualization for packet and circuit switching 有权
标题翻译：用于分组和电路交换的结构虚拟化
公开(公告)号：US08687629B1
公开(公告)日：2014-04-01
申请号：US12710164
申请日：2010-02-22
申请人： Kireeti Kompella , Philip A. Thomas , Anurag Agrawal
发明人： Kireeti Kompella , Philip A. Thomas , Anurag Agrawal
IPC分类号： H04L12/50 , H04L12/28 , H04L12/26 , H04L12/56
CPC分类号： H04L49/1515
摘要： A network device includes a hybrid switch fabric configured for switching packets and circuits that includes a packet switching portion that distributes packets across a plurality of packet ports of fabric chips within the hybrid switch fabric and operates in accordance with packet switching behavior requirements, and a circuit switching portion for switching circuits, wherein the circuit switching portion of the hybrid switch fabric directly connects a single input of the hybrid switch fabric to a single output of the hybrid switch fabric via a pre-determined path through the fabric chips and operates in accordance with circuit switching behavior requirements. The packet switching portion and the circuit switching portion include one or more fabric chips, wherein the fabric chips each include a plurality of ports each dynamically configurable as one of a packet port for receiving and outputting packet-switched data and a circuit port for receiving and outputting circuit-switched data.
摘要翻译：网络设备包括配置用于切换分组和电路的混合交换结构，所述分组和电路包括：分组交换部分，其在所述混合交换结构内的结构芯片的多个分组端口上分发分组，并且根据分组交换行为要求进行操作;以及电路切换电路的切换部分，其中混合交换机结构的电路交换部分经由织物芯片的预定路径直接将混合交换结构的单个输入连接到混合交换结构的单个输出，并根据电路交换行为要求。分组交换部分和电路交换部分包括一个或多个结构芯片，其中，每个结构芯片包括多个端口，每个端口可动态配置为用于接收和输出分组交换数据的分组端口之一，以及用于接收和输出分组交换数据的电路端口输出电路交换数据。

69. 发明授权

US08611359B1 Scaling MPLS across areas of an autonomous system using labeled interior border gateway protocol 有权
标题翻译：使用标记的内部边界网关协议在自治系统的区域范围内扩展MPLS
公开(公告)号：US08611359B1
公开(公告)日：2013-12-17
申请号：US12626221
申请日：2009-11-25
申请人： Kireeti Kompella , Nischal Sheth , Shivani Aggarwal , Yakov Rekhter
发明人： Kireeti Kompella , Nischal Sheth , Shivani Aggarwal , Yakov Rekhter
IPC分类号： H04L12/28
CPC分类号： H04L45/04 , H04L45/50
摘要： Techniques are described for scaling Multiprotocol Label Switching (MPLS) across areas of an autonomous system using a labeled interior Border Gateway Protocol (iBGP). A method includes executing a first label distribution protocol at a border node at a border between two of a plurality of interior gateway protocol (IGP) areas of a single autonomous system (AS), and exchanging label distribution messages using the first label distribution protocol to establish a first intra-area label switched path (LSP) within a first one of IGP areas. The method also includes executing a labeled interior border gateway protocol at the border node, and exchanging label distribution messages using the labeled interior border gateway protocol to establish a hierarchical inter-area LSP that runs over the previously established first intra-area LSP, wherein the hierarchical inter-area LSP extends across the plurality of IGP areas of the AS.
摘要翻译：描述了使用标记的内部边界网关协议（iBGP）在跨自治系统的区域缩放多协议标签交换（MPLS）的技术。一种方法包括在单个自治系统（AS）的多个内部网关协议（IGP）区域中的两个之间的边界处的边界节点处执行第一标签分发协议，以及使用第一标签分发协议交换标签分发消息，在第一个IGP区域内建立第一个区域内标签交换路径（LSP）。该方法还包括在边界节点处执行标记的内部边界网关协议，并且使用标记的内部边界网关协议来交换标签分发消息，以建立在先前建立的第一区域内LSP上运行的分层区域间LSP，其中，分层区域间LSP跨越AS的多个IGP区域延伸。

70. 发明授权

US08532127B2 Network routing using indirect next hop data 有权
公开(公告)号：US08532127B2
公开(公告)日：2013-09-10
申请号：US12847735
申请日：2010-07-30
申请人： Kireeti Kompella
发明人： Kireeti Kompella
IPC分类号： H04L12/56
CPC分类号： H04L45/20 , H04L12/44 , H04L12/56 , H04L45/02 , H04L45/46 , H04L45/48 , H04L45/60
摘要： A router maintains routing information including (i) route data representing destinations within a computer network, (ii) next hop data representing interfaces to neighboring network devices, and (iii) indirect next hop data that maps a subset of the routes represented by the route data to a common one of the next hop data elements. In this manner, routing information is structured such that routes having the same next hop use indirect next hop data structures to reference common next hop data. In particular, in response to a change in network topology, the router need not change all of the affected routes, but only the common next hop data referenced by the intermediate data structures. This provides for increased efficiency in updating routing information after a change in network topology, such as link failure.

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