公开(公告)号：WO2011115668A1

公开(公告)日：2011-09-22

申请号：PCT/US2011/000470

申请日：2011-03-15

Applicant: CISCO TECHNOLOGY, INC. ,  THUBERT, Pascal ,  WETTERWALD, Patrick ,  VASSEUR, Jean-philippe

Inventor： THUBERT, Pascal ,  WETTERWALD, Patrick ,  VASSEUR, Jean-philippe

IPC: H04L12/28

CPC classification number: H04L41/12 ,  H04L45/02 ,  H04L45/48 ,  Y04S40/164

Abstract: In one embodiment, a node "N" within a computer network utilizing directed acyclic graph (DAG) routing selects a parent node "P" within the DAG, and, where P is not a DAG root, may determine a grandparent node "GP" as a parent node to the parent node P. The node N may then also select an alternate parent node "P'" that has connectivity to GP and N. N may then inform P and P' about prefixes reachable via N, and also about P' as an alternate parent node to P to reach the prefixes reachable via N. Also, in one embodiment, P may be configured to inform GP about the prefixes reachable via N and also about P' as an alternate parent node to P to reach the prefixes reachable via N, and P' may be configured to store the prefixes reachable via N without informing other nodes about those prefixes.

Abstract translation: 在一个实施例中，利用有向非循环图（DAG）路由的计算机网络内的节点“N”选择DAG内的父节点“P”，并且其中P不是DAG根，可以确定祖父节点“GP” 作为父节点到父节点P.节点N然后还可以选择具有与GP和N的连接性的备用父节点“P”.N然后可以通知P和P'关于经由N可达的前缀，并且还关于 P'作为到P的替代父节点以到达可通过N到达的前缀。此外，在一个实施例中，P可以被配置为向GP通知关于可以经由N到达的前缀以及关于P'作为到P的替代父节点 可通过N和P'到达的前缀可被配置为存储可通过N到达的前缀，而不通知其他节点关于这些前缀。

公开(公告)号：WO2008091725A1

公开(公告)日：2008-07-31

申请号：PCT/US2008/050356

申请日：2008-01-07

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

Inventor： THUBERT, Pascal ,  RIBIERE, Vincent, Jean ,  WETTERWALD, Patrick ,  CASTAGNOLI, Neal, Dante

IPC: H04J3/14

CPC classification number: H04W40/30

Abstract: In one embodiment, a method includes, in each of a plurality of mesh access points, connecting to one of a plurality of mesh controllers in a mesh network and passing connection information to the one mesh controller. The mesh access points include a wired mesh access point having a wired connection to the one mesh controller, and wireless mesh access points having a wireless connection to the one mesh controller via the wired mesh access point. The method also includes generating, in each mesh controller, a corresponding link state table based on the passed connection information from each corresponding connected mesh access point. The method also includes generating in at least one of the mesh controllers a mesh table, identifying all of the connecting links for the mesh access points connected among the mesh controllers, based on the mesh controllers sharing the respective link state tables.

Abstract translation: 在一个实施例中，一种方法包括在多个网格接入点中的每一个中，连接到网状网络中的多个网格控制器中的一个，并将连接信息传递给一个网格控制器。 网格接入点包括具有到一个网格控制器的有线连接的有线网状接入点，以及具有经由有线网状接入点到一个网状控制器的无线连接的无线网状接入点。 该方法还包括在每个网格控制器中基于来自每个相应连接的网格接入点的传递的连接信息生成相应的链路状态表。 该方法还包括在网格控制器中的至少一个网格表中，基于共享相应链接状态表的网格控制器，在网格表之间生成网格表，以识别网格控制器之间连接的网格访问点的所有连接链接。

公开(公告)号：WO2007081567A2

公开(公告)日：2007-07-19

申请号：PCT/US2006/049471

申请日：2006-12-29

Applicant: CISCO TECHNOLOGY, INC. ,  THUBERT, Pascal ,  BERRY, Thomas ,  RIBIERE, Vincent, Jean ,  RETANA, Alvaro, Enrique ,  WHITE, Russell, Ivan

Inventor： THUBERT, Pascal ,  BERRY, Thomas ,  RIBIERE, Vincent, Jean ,  RETANA, Alvaro, Enrique ,  WHITE, Russell, Ivan

IPC: H04L12/28 ,  H04L12/56

CPC classification number: H04W40/246 ,  H04L45/025 ,  H04L45/34 ,  H04L45/46 ,  H04L45/48 ,  H04L45/7457 ,  H04W40/26 ,  H04W40/32

Abstract: Each mobile ad hoc node has an assigned hierarchy position within an identified tree-based aggregation group. Each ad hoc node is configured for selectively attaching to one of a plurality of available ad hoc nodes based on identifying a best match, for the assigned hierarchy position within the identified aggregation group, from among identifiable hierarchy positions of identifiable aggregation groups. Each ad hoc node also is configured for selectively attaching to any available ad hoc node based on a determined absence of any available ad hoc node advertising the identified aggregation group of the ad hoc node, or an aggregation group containing the identified aggregation group. Hence, a root node of an aggregation group can filter group-specific routing information from packets destined toward a network clusterhead, resulting in a scalable routing protocol that is not adversely affected by added nodes.

Abstract translation: 每个移动专用节点在所识别的基于树的聚合组内具有分配的层级位置。 每个特别节点被配置为基于为所识别的聚合组中的所分配的分级位置，从可识别的聚合组的可识别的层级位置中识别出最佳匹配，来选择性地附接到多个可用的自组织节点中的一个。 每个自组织节点还被配置为基于确定不存在广告所标识的自组织节点的聚合组的任何可用的特定节点，或者包含所识别的聚合组的聚合组，选择性地附加到任何可用的自组织节点。 因此，聚合组的根节点可以从去往网络集群头的分组过滤组特定的路由信息​​，从而导致可扩展的路由协议不受添加节点的不利影响。

公开(公告)号：WO2006011980A2

公开(公告)日：2006-02-02

申请号：PCT/US2005/020779

申请日：2005-06-13

Applicant: CISCO TECHNOLOGY, INC. ,  WETTERWALD, Patrick ,  THUBERT, Pascal

Inventor： WETTERWALD, Patrick ,  THUBERT, Pascal

IPC: H04J3/22

CPC classification number: H04L45/00 ,  H04L29/12009 ,  H04L29/12358 ,  H04L29/12481 ,  H04L29/12556 ,  H04L61/251 ,  H04L61/2557 ,  H04L61/2585 ,  H04L69/16 ,  H04L69/167

Abstract: An IPv4 node is able to send an IPv4 packet to an IPv4 destination via an IPv6 access network, based on translation of the IPv4 packet into an IPv6 packet for transmission via the IPv6 access network. The IPv4 packe is translated into the IPv6 packet by a local gateway. The IPv6 packet has an IPv6 source address that includes a prescribed address prefix assigned to the local gateway, and an IPv4 address of the IPv4 node. The IPv6 packet also includes an IPv6 destination address that includes a second a address prefix assigned to a remote gateway, and a second IPv4 adress of the IPv4 destination. The IPv6 packet is converted by the remote gateway into an IPv4 packet for reception by the IPv4 destination via an IPv4 network.

Abstract translation: IPv4节点能够通过IPv6接入网将IPv4分组发送到IPv4目的地，基于IPv4分组转换为IPv6分组，以经由IPv6接入网络进行传输。 IPv4打包由本地网关转换成IPv6数据包。 IPv6分组具有包含分配给本地网关的规定地址前缀的IPv6源地址和IPv4节点的IPv4地址。 IPv6分组还包括IPv6目的地地址，其包括分配给远程网关的第二个地址前缀和IPv4目的地的第二IPv4地址。 IPv6分组由远程网关转换成IPv4分组，以通过IPv4网络由IPv4目的地接收。

公开(公告)号：WO2004104740A2

公开(公告)日：2004-12-02

申请号：PCT/US2004/014947

申请日：2004-05-13

Applicant: CISCO TECHNOLOGY, INC. ,  MOLTENI, Marco ,  THUBERT, Pascal ,  WETTERWALD, Patrick ,  VILLARI, Massimo ,  LEVY-ABEGNOLI, Eric, M.

Inventor： MOLTENI, Marco ,  THUBERT, Pascal ,  WETTERWALD, Patrick ,  VILLARI, Massimo ,  LEVY-ABEGNOLI, Eric, M.

IPC: G06F

CPC classification number: H04L29/12066 ,  H04L12/4625 ,  H04L45/02 ,  H04L61/1511 ,  H04W8/082 ,  H04W40/248 ,  H04W40/28 ,  H04W80/04 ,  H04W84/005 ,  H04W88/182

Abstract: A mobile router and a correspondent router, each configured for routing services for nodes within their routing prefixes associated with their respective routing tables, establish a secure, bidirectional tunnel based on a messaging protocol between each other and a route server resource. A reactive (i.e., on-demand) protocol is used that enables the requesting device (e.g., the mobile router, correspondent router), to obtain routing information in a secure manner from the route server. The mobile router sends a query via its home agent to the route server resource to identify the correspondent router serving the correspondent node. The mobile router sends a binding update request, specifying a home address and care-of address for the mobile router, to the correspondent router for establishment of a bidirectional tunnel. The correspondent router establishes the bidirectional tunnel, and updates its routing tables based on information from the route server resource.

Abstract translation: 移动路由器和对应路由器，每个被配置用于路由与其相应路由表相关联的路由前缀内的节点的服务，基于彼此之间的消息传递协议和路由服务器资源建立安全的双向隧道。 使用使得请求设备（例如，移动路由器，通信路由器）能够以安全的方式从路由服务器获得路由信息的无效（即，按需）协议。 移动路由器通过其归属代理向路由服务器资源发送查询，以识别服务对端节点的通信路由器。 移动路由器向对应的路由器发送绑定更新请求，指定移动路由器的归属地址和转交地址，以建立双向隧道。 通信路由器建立双向隧道，根据路由服务器资源的信息更新其路由表。

公开(公告)号：WO2004102849A3

公开(公告)日：2004-11-25

申请号：PCT/US2004/013757

申请日：2004-05-05

Applicant: CISCO TECHNOLOGY, INC. ,  LEVY-ABEGNOLI, Eric ,  THUBERT, Pascal ,  MOLTENI, Marco ,  WETTERWALD, Patrick ,  VILLARI, Massimo

Inventor： LEVY-ABEGNOLI, Eric ,  THUBERT, Pascal ,  MOLTENI, Marco ,  WETTERWALD, Patrick ,  VILLARI, Massimo

IPC: H04L12/28

Abstract: A router is configured for sharing routing rules with other routers, the routing rules defining aggregated routes according to a prescribed topology. Each routing rule used by the router for routing a packet having a corresponding matching destination address prefix (116), specifies a corresponding address prefix pattern rule for extracting an identified pattern from a portion of the destination address (120), and a gateway address pattern rule for generating a gateway address, for a gateway providing reachability to the destination address (122), based on applying the identified pattern to a specified pattern of the gateway address. The router generates a routing update message that describes the address prefix pattern rule and the gateway address pattern rule, and outputs the routing update message to a second router (126) according to a prescribed distance vector routing protocol.

公开(公告)号：WO2004090663A2

公开(公告)日：2004-10-21

申请号：PCT/US2004/010061

申请日：2004-04-01

Applicant: CISCO TECHNOLOGY INC. ,  THUBERT, Pascal ,  MOLTENI, Marco ,  WETTERWALD, Patrick ,  LEVY-ABEGNOLI, Eric, M.

Inventor： THUBERT, Pascal ,  MOLTENI, Marco ,  WETTERWALD, Patrick ,  LEVY-ABEGNOLI, Eric, M.

IPC: G06F

CPC classification number: H04L45/54 ,  H04L45/00 ,  H04L45/245 ,  H04W40/02

Abstract: A router (e.g., a home agent for an IPv6 mobile router) is configured for determining a destination router (e.g., the IPv6 mobile router) for a received packet based on accessing a routing table having multiple routing entries, each routing entry including a routing key and a routing field that specifies one of a prescribed address specifying the destination router and a computation tag. The computation tag specifies a prescribed function to be executed to calculate a determined address for the destination router (e.g., the home address for the lPv6 mobile router). The router identifies, for each received packet, the matching routing entry based on the corresponding routing key, and in response to detecting the computation tag in the routing field, selectively executes the corresponding function to calculate the determined address for the destination router.

Abstract translation: 路由器（例如，IPv6移动路由器的归属代理）被配置为基于访问具有多个路由条目的路由表来确定接收到的分组的目的地路由器（例如，IPv6移动路由器），每个路由条目包括路由 密钥和指定指定目的地路由器的规定地址之一和计算标签的路由字段。 计算标签指定要执行的规定功能以计算目的地路由器的确定的地址（例如，lPv6移动路由器的归属地址）。 路由器根据相应的路由密钥，为每个收到的报文识别匹配的路由条目，并且响应于检测到路由字段中的计算标签，选择性地执行相应的功能以计算目的路由器的确定的地址。

公开(公告)号：WO2022031454A1

公开(公告)日：2022-02-10

申请号：PCT/US2021/042844

申请日：2021-07-22

Applicant: CISCO TECHNOLOGY, INC.

Inventor： WETTERWALD, Patrick ,  ZADDACH, Jonas ,  THUBERT, Pascal ,  LEVY-ABEGNOLI, Eric

IPC: H04L29/06 ,  H04W12/06 ,  H04L2463/082 ,  H04L63/0853 ,  H04L63/0876 ,  H04L63/0884 ,  H04L63/16

Abstract: This disclosure describes techniques for device to device authentication. For instance, a first device may detect a second device, such as when a user physically attaches the second device to the first device or when the second device wireless communicates with the first device. A component of the first device and/or an authentication entity may then determine to authenticate the second device. In some instances, the component determines to authenticate the second device using information associated with an environment of the second device. To authenticate the second device, the authentication entity may send a request to a user, receive a response from the user, and then verity the response. After the authentication, the first device may determine that the second device includes a trusted device and establish a connection with the second device.

公开(公告)号：WO2020205587A1

公开(公告)日：2020-10-08

申请号：PCT/US2020/025391

申请日：2020-03-27

Applicant: CISCO TECHNOLOGY, INC.

Inventor： THUBERT, Pascal ,  HENRY, Jerome ,  BARTON, Robert, E.

IPC: H04L12/815 ,  H04L12/26 ,  H04L12/841 ,  H04L12/801 ,  H04L12/875 ,  H04L12/863 ,  H04L12/861

Abstract: Telemetry for cloud switches queuing excursion may be provided. A first hysteresis threshold and a second hysteresis threshold for a queue of the network switch may be specified. Next, a queue position relative to the first hysteresis threshold and the second hysteresis threshold may be determined for each incoming packets for the queue. A number of crossings including the queue position passing the first hysteresis threshold and subsequently passing the second hysteresis threshold in a first predetermined time period may be determined. A number of data packets being sent to the queue of the network switch may then be altered based on one or more of the number of crossings, the first hysteresis threshold, and the second hysteresis threshold.

公开(公告)号：WO2020198292A1

公开(公告)日：2020-10-01

申请号：PCT/US2020/024590

申请日：2020-03-25

Applicant: CISCO TECHNOLOGY, INC.

Inventor： HEITZ, Jakob ,  RAO, Dhananjaya Kasargod ,  THUBERT, Pascal

IPC: H04L12/715 ,  H04L12/721 ,  H04L12/753

Abstract: The present disclosure provides Border Gateway Protocol route aggregation in a Clos fabric when one or more communication failures are detected. A method includes receiving a prefix component of a first aggregate route from a first next hop node, the prefix component being associated with a failed network element; announcing, to one or more neighboring nodes, the first aggregate route along with the prefix component and the first next hop node associated with the failed network element; identifying, by the one or more neighboring nodes, a second aggregate route, the second aggregate route being a shortest aggregate route that contains the first aggregate route; and generating, from the second aggregate route, one or more Chad routes to the prefix component of the first aggregate route, wherein the one or more Chad routes are associated with one or more next hop nodes that are different from the first next hop node.