公开(公告)号：WO2015013001A3

公开(公告)日：2015-01-29

申请号：PCT/US2014/044454

申请日：2014-06-26

Applicant: CISCO TECHNOLOGY, INC.

Inventor： WETTERWALD, Patrick ,  VASSEUR, Jean, Philippe ,  THUBERT, Pascal

IPC: H04W72/02

Abstract: One embodiment allocates and uses exclusive and overlapping transmission units in a network. One embodiment includes sending information, from a first network node in a network, during an exclusive transmission unit, wherein the exclusive transmission unit includes one or more wireless time slot-frequency pairings assigned to the first network node to send information without another assigned network transmission unit providing overlapping time slot-frequency interference from another network node communicating in the network. One embodiment includes sending information, from the first network node, during an overlapping transmission unit, wherein the overlapping transmission unit includes one or more wireless time slot-frequency pairings assigned to the first network node to send information, with the overlapping transmission unit overlapping in time slot-frequency with one or more other assigned network transmission units that will cause interference if simultaneously used.

公开(公告)号：WO2014070738A1

公开(公告)日：2014-05-08

申请号：PCT/US2013/067265

申请日：2013-10-29

Applicant: CISCO TECHNOLOGY, INC.

Inventor： THUBERT, Pascal ,  MARTIN, Jonathan ,  WETTERWALD, Patrick

IPC: H04L12/715

CPC classification number: H04L45/04 ,  H04L45/02 ,  H04L45/28 ,  H04L45/46

Abstract: In one embodiment, a method comprises creating, in a computing network, a hierarchal routing topology for reaching a destination, the hierarchal routing topology comprising a single parent supernode providing reachability to the destination, and a plurality of child supernodes, each child supernode comprising one or more exit network devices each providing a corresponding link to the parent supernode; receiving, in one of the child supernodes, a data packet for delivery to the destination; causing the data packet to traverse along any available data link in the one child supernode independent of any routing topology established by network devices in the one child supernode, until the data packet reaches one of the exit network devices; and the one exit network device forwarding the data packet to the parent supernode, via the corresponding link, for delivery to the destination.

Abstract translation: 在一个实施例中，一种方法包括在计算网络中创建用于到达目的地的分层路由拓扑，所述层级路由拓扑包括提供到达目的地的可达性的单个父超节点以及多个子超节点，每个子超节点包括一个 或多个出口网络设备，每个退出网络设备提供到父级超级节点的对应链路; 在其中一个子超文本中接收用于传送到目的地的数据包; 使得数据分组沿着所述一个子超节点中的任何可用数据链路遍历，独立于由所述一个子超节点中的网络设备建立的任何路由拓扑，直到所述数据分组到达所述退出网络设备之一; 并且一个退出网络设备经由相应的链路将数据分组转发到父超节点，以传送到目的地。

公开(公告)号：WO2014058936A1

公开(公告)日：2014-04-17

申请号：PCT/US2013/063961

申请日：2013-10-09

Applicant: CISCO TECHNOLOGY, INC.

Inventor： THUBERT, Pascal ,  BELLAGAMBA, Patrice ,  WIJNANDS, Ijsbrand

IPC: H04L12/735 ,  H04L12/705 ,  H04L12/707

CPC classification number: H04L45/18 ,  H04L41/0803 ,  H04L45/02 ,  H04L45/128 ,  H04L45/24

Abstract: In one embodiment, a method comprises creating, in a computing network, a loop-free routing topology comprising a plurality of routing arcs for reaching a destination network node, each routing arc comprising a first network node as a first end of the routing arc, a second network node as a second end of the routing arc, and at least a third network node configured for routing any network traffic along the routing arc toward the destination node via any one of the first or second ends of the routing arc, the loop-free routing topology providing first and second non-congruent paths; and forwarding bicasting data, comprising a data packet in a first direction from a network node and a bicasted copy of the data packet in a second direction from the network node, concurrently to the destination node respectively via the first and second non-congruent paths.

Abstract translation: 在一个实施例中，一种方法包括在计算网络中创建包括用于到达目的地网络节点的多个路由弧的无环路由拓扑，每个路由弧包括作为路由电弧的第一端的第一网络节点， 作为所述路由选择电弧的第二端的第二网络节点，以及至少第三网络节点，被配置为经由所述路由选择电弧的任何网络业务通过所述路由电弧的所述第一或第二端中的任何一个路向所述目的地节点，所述环路 - 提供第一和第二非一致路径的自由路由拓扑; 以及分别经由所述第一和第二非全等路径将包括来自网络节点的第一方向上的数据分组和来自所述网络节点的第二方向的所述数据分组的多播复制同时发送到所述目的地节点。

公开(公告)号：WO2011115680A1

公开(公告)日：2011-09-22

申请号：PCT/US2011/000490

申请日：2011-03-17

Applicant: CISCO TECHNOLOGY, INC. ,  VASSEUR, Jean-Philippe ,  AGARWAL, Navneet ,  THUBERT, Pascal ,  WETTERWALD, Patrick

Inventor： VASSEUR, Jean-Philippe ,  AGARWAL, Navneet ,  THUBERT, Pascal ,  WETTERWALD, Patrick

IPC: H04L12/28

CPC classification number: H04L45/124 ,  H04L45/48

Abstract: In one embodiment, a root device may request that one or more devices of a computer network build a directed acyclic graph (DAG) for routing traffic within the computer network based on an objective function (OF), where the OF has one or more metrics to optimize the DAG against and optionally certain constraints. Particular devices that receive the request may then build the DAG based on the OF, and may determine and report OF feedback to the root device. Upon receiving the reports regarding OF feedback, the root device may then adjust the OF based on the feedback, and request a rebuild of the DAG from the devices based on the adjusted OF.

Abstract translation: 在一个实施例中，根设备可以请求计算机网络的一个或多个设备基于目标函数（OF）构建用于在计算机网络内路由业务的有向非循环图（DAG），其中OF具有一个或多个度量 以优化DAG和任选的某些约束。 接收请求的特定设备然后可以基于OF构建DAG，并且可以确定并向根设备报告反馈。 在接收到关于OF反馈的报告之后，根设备可以基于反馈来调整OF，并且基于经调整的OF请求从设备重建DAG。

公开(公告)号：WO2008106339A1

公开(公告)日：2008-09-04

申请号：PCT/US2008/054234

申请日：2008-02-19

Applicant: CISCO TECHNOLOGY, INC. ,  THUBERT, Pascal

Inventor： THUBERT, Pascal

IPC: H04L12/56

CPC classification number: H04W8/082 ,  H04W40/34 ,  H04W80/04

Abstract: In one embodiment, a method includes generating by a mobile router a home test message that includes a prefix option field specifying at least one mobile network prefix claimed to be owned by the mobile router. The method also includes outputting the home test message by the mobile router to a correspondent node via a prescribed home agent assigned to the mobile router, for initiation of a reverse routability test between the mobile router and the correspondent node that verifies the mobile router owns the at least one mobile network prefix. In another embodiment, the home agent is configured for forwarding a route optimization message, for example the home test message, to the correspondent node if the home agent determines that the at least one mobile network prefix is owned by the mobile router.

Abstract translation: 在一个实施例中，一种方法包括由移动路由器生成家庭测试消息，家庭测试消息包括前缀选项字段，其指定声称拥有的移动路由器的至少一个移动网络前缀。 该方法还包括通过分配给移动路由器的规定的归属代理将移动路由器的归属测试消息输出到通信节点，以便在移动路由器与验证移动路由器拥有的对方节点之间启动反向可路由性测试 至少一个移动网络前缀。 在另一个实施例中，如果归属代理确定所述至少一个移动网络前缀是由所述移动路由器拥有的，所述归属代理被配置为将路由优化消息（例如所述归属测试消息）转发到所述通信节点。

公开(公告)号：WO2008021627A3

公开(公告)日：2008-02-21

申请号：PCT/US2007/072787

申请日：2007-07-03

Applicant: CISCO TECHNOLOGY, INC.

Inventor： RIBIERE, Vincent ,  THUBERT, Pascal ,  WETTERWALD, Patrick

IPC: H04Q7/24 ,  H04L12/28

Abstract: In one embodiment, a method includes receiving an inbound data packet over a wireless link at a wireless intermediate network node. The inbound data packet indicates the packet was transmitted by a node at an edge of the mesh. The inbound data packet is associated with a low priority minimum wait interval and a low priority maximum wait interval for reducing contention on the wireless link. An outbound data packet based on the first data packet is transmitted over the wireless link after a wait time. The wait time is based on a high priority minimum wait interval and a high priority maximum wait interval for reducing contention. The low priority minimum wait interval is greater than the high priority minimum wait interval. These techniques allow long packet queues at the edge but quickly clear packets already forwarded by the mesh.

公开(公告)号：WO2006121677A3

公开(公告)日：2006-11-16

申请号：PCT/US2006/016631

申请日：2006-05-02

Applicant: CISCO TECHNOLOGY, INC. ,  THUBERT, Pascal ,  WETTERWALD, Patrick ,  RIBIERE, Vincent, Jean

Inventor： THUBERT, Pascal ,  WETTERWALD, Patrick ,  RIBIERE, Vincent, Jean

IPC: H04L12/56 ,  H04L12/66 ,  H04L12/28

Abstract: Gateways providing connectivity for respective private IPv4 networks to an IPv6 network establish communications between IPv4 nodes in the private network. Network address translation-protocol translation (NAT-PT) state entries are created by gateway pairs enabling translation of IPv4 packets between first and second IPv4 nodes in respective first and second IPv4 private networks into IPv6 packets for transmission via the IPv6 network. Each NAT-PT state entry specifies the IPv6 addresses for the first and second IPv4 nodes, and the IPv4 addresses used to identify the first and second IPv4 nodes in the corresponding private IPv4 network. Each gateway is configured for generating the IPv6 address for each local IPv4 node based on prepending its corresponding assigned private IPv4 address with a corresponding prescribed IPv6 prefix assigned to the gateway. Hence, gateways can dynamically establish communications between private networks without tunneling protocols, enabling deployment of latency-sensitive applications such as Voice over IP.

公开(公告)号：WO2005048512A3

公开(公告)日：2005-05-26

申请号：PCT/US2004/037252

申请日：2004-11-09

Applicant: CISCO TECHNOLOGY, INC ,  DROMS, Ralph, Edward ,  THUBERT, Pascal

Inventor： DROMS, Ralph, Edward ,  THUBERT, Pascal

IPC: H04Q007/00

Abstract: An access router of a local mobile network includes a delegation resource for delegating address prefixes and a routing resource configured for parsing reverse routing headers from received data packets. The delegation resource supplies each mobile router attaching to the local mobile network with a corresponding unique delegated address prefix within an available network prefix for use within the local mobile network. Each mobile router attached to the access router via another mobile router utilizes a reverse routing header to establish a tunnel with the access router, enabling the access router to source route messages to the mobile router via its corresponding local care-of address and next-hop addresses specified in the reverse routing header. Each mobile router creates a remote care-of address based on the delegated address prefix, minimizing the need for binding updates with the corresponding home agent as the mobile router moves within the local mobile network.

公开(公告)号：WO2004034647A2

公开(公告)日：2004-04-22

申请号：PCT/US2003/027346

申请日：2003-08-29

Applicant: CISCO TECHNOLOGY, INc.

Inventor： MOLTENI, Marco ,  LUCCHINA, Massimo, G. ,  THUBERT, Pascal

IPC: H04L12/28

CPC classification number: H04W48/16 ,  H04L41/048 ,  H04L41/5009 ,  H04L63/029 ,  H04L63/0428 ,  H04W8/02 ,  H04W80/04 ,  H04W88/08

Abstract: A wireless station having a wireless network device capable of providing a link-layer interface to a wireless network, a method operating at the link layer (L2) in the wireless station, and a carrier medium carrying computer readable code segments that when executed on a processor in the wireless station implement the method. The method includes, prior to the station being associated with a wireless network, wirelessly receiving L2 frames transmitted from one or more wireless access point of one or more wireless networks that the station can hear. The method further includes gathering information about the received L2 frames, including L2 information and L3 information. The L3 information includes whether an AP is sending an IP packet from a mobility agent, such that the station may associate with a wireless network that is in communication with the mobility agent. The method further includes storing information about the wireless networks that the station can hear in a database. The information stored about each wireless network includes one or more of an identifier of the wireless network, the L3 information in the L2 frame received from the AP of the wireless network, a time stamp of when the L2 frame was received from the AP, and an indication of the signal strength of the L2 frame from the AP.

Abstract translation: 一种具有能够向无线网络提供链路层接口的无线网络设备的无线站，在无线站中的链路层（L2）操作的方法，以及承载计算机可读代码段的载体介质， 处理器在无线电台实现的方法。 该方法包括在站与无线网络相关联之前，无线地接收从站可以听到的一个或多个无线网络的一个或多个无线接入点发送的L2帧。 该方法还包括收集关于接收的L2帧的信息，包括L2信息和L3信息。 L3信息包括AP是否从移动性代理发送IP分组，使得该站可以与与移动性代理通信的无线网络关联。 该方法还包括存储关于站可以在数据库中听到的无线网络的信息。 关于每个无线网络存储的信息包括无线网络的标识符，从无线网络的AP接收的L2帧中的L3信息，从AP接收到L2帧的时间戳的一个或多个，以及 来自AP的L2帧的信号强度的指示。

公开(公告)号：WO2023091574A1

公开(公告)日：2023-05-25

申请号：PCT/US2022/050254

申请日：2022-11-17

Applicant: CISCO TECHNOLOGY, INC.

Inventor： THUBERT, Pascal ,  KATHAIL, Pradeep, Kumar ,  LEVY-ABEGNOLI, Eric ,  MALUF, David, A.

IPC: H04L61/2503 ,  H04L61/2539 ,  H04L61/4511 ,  H04L9/40

Abstract: Techniques for using Network Address Translation (NAT), Mobile Internet Protocol (MIP), and/or other techniques in conjunction with Domain Name System (DNS) to anonymize server-side addresses in data communications. Rather than having DNS provide a client device with an IP address of an endpoint device, such as a server, the DNS instead returns a virtual IP (VIP) address that is mapped to the client device and the endpoint device. In this way, IP addresses of servers are obfuscated by a virtual network of VIP addresses. The client device may then communicate data packets to the server using the VIP address as the destination address, and a virtual network service that works in conjunction with DNS can convert the VIP address to the actual IP address of the server using NAT and forward the data packet onto the server.