公开(公告)号：US20150319084A1

公开(公告)日：2015-11-05

申请号：US14797554

申请日：2015-07-13

Applicant: Cisco Technology, Inc.

Inventor： Jonathan W. Hui ,  Wei Hong ,  Jean-Philippe Vasseur

IPC: H04L12/721 ,  H04L12/935 ,  H04L29/12 ,  H04L29/06

CPC classification number: H04L45/34 ,  H04L49/3009 ,  H04L61/6059 ,  H04L69/22

Abstract: In one embodiment, a data packet message is provided which includes a routing header configured to accommodate both a deterministic source route and a probabilistic source route for encoding a nodal source route. The nodal source route is selectively encoded with one or both of a deterministic source route and a probabilistic source route based upon one or more predetermined criteria.

Abstract translation: 在一个实施例中，提供了数据分组消息，其包括被配置为适应确定性源路由和用于编码节点源路由的概率源路由两者的路由头。 基于一个或多个预定标准，节点源路由被选择性地编码为确定性源路由和概率源路由中的一个或两个。

公开(公告)号：US09094324B2

公开(公告)日：2015-07-28

申请号：US14027973

申请日：2013-09-16

Applicant: Cisco Technology, Inc.

Inventor： Jean-Philippe Vasseur ,  Jonathan W. Hui

IPC: H04L12/28 ,  G06F15/173 ,  G06F11/00 ,  H04L12/707 ,  H04L12/743

CPC classification number: H04L45/24 ,  H04L45/7453

Abstract: In one embodiment, a node determines an intention to transmit a diversely forwarded packet through a computer network, and as such, transmits a first version of the packet having a packet identifier (ID) and a first distinguisher value to a first next-hop node, and transmits a second version of the packet having the same packet ID and a second distinguisher value different from the first distinguisher value to a second next-hop node different from the first next-hop node. In another embodiment, a next-hop node that receives the packet determines whether any previously received packet at the next-hop node had a same packet ID and a different distinguisher value. In response to determining that no previously received packet has the same packet ID and different distinguisher value, the next-hop node stores the packet ID and the distinguisher value, and forwards the packet to a selected next-hop node.

Abstract translation: 在一个实施例中，节点确定通过计算机网络发送不同转发的分组的意图，并且因此将具有分组标识符（ID）和第一识别器值的分组的第一版本发送到第一下一跳节点 并且将与第一识别符值不同的分组ID和第二识别符值的分组的第二版本发送到与第一下一跳节点不同的第二下一跳节点。 在另一个实施例中，接收分组的下一跳节点确定在下一跳节点处的任何先前接收到的分组是否具有相同的分组ID和不同的识别器值。 响应于确定以前没有接收到的分组具有相同的分组ID和不同的识别符值，下一跳节点存储分组ID和识别器值，并将分组转发到所选择的下一跳节点。

公开(公告)号：US20150200846A1

公开(公告)日：2015-07-16

申请号：US14155975

申请日：2014-01-15

Applicant: Cisco Technology, Inc.

Inventor： Jonathan W. Hui ,  Wei Hong ,  Jean-Philippe Vasseur

IPC: H04L12/721 ,  H04L12/751 ,  H04L12/715

CPC classification number: H04L45/70 ,  H04L45/26 ,  H04L45/46 ,  H04W40/12 ,  H04W40/24 ,  H04W40/30 ,  H04W40/32

Abstract: In one embodiment, a device communicates with one or more neighboring devices in a shared-media communication network using a default data rate. The device determines that the default data rate is not supported by a particular one of the neighboring devices. The particular neighboring device is then associated with a second data rate that has a lower data rate than the default data rate. The second data rate is then used to communicate with the particular neighboring device.

Abstract translation: 在一个实施例中，设备使用默认数据速率与共享媒体通信网络中的一个或多个相邻设备进行通信。 该设备确定缺省数据速率不被特定的相邻设备支持。 然后，特定的相邻设备与具有比默认数据速率更低的数据速率的第二数据速率相关联。 然后第二数据速率用于与特定的邻近设备通信。

公开(公告)号：US20150188934A1

公开(公告)日：2015-07-02

申请号：US14165415

申请日：2014-01-27

Applicant: Cisco Technology, Inc.

Inventor： Jean-Philippe Vasseur ,  Javier Cruz Mota ,  Andrea Di Pietro ,  Jonathan W. Hui

IPC: H04L29/06 ,  G06N99/00

CPC classification number: H04L63/1416 ,  G06N99/005 ,  H04K3/226 ,  H04K2203/18 ,  H04L63/1441 ,  H04L63/1458 ,  H04W12/12

Abstract: In one embodiment, a control loop control using a broadcast channel may be used to communicate with a node under attack. A management device may receive data indicating that one or more nodes in a computer network are under attack. The management device may then determine that one or more intermediate nodes are in proximity to the one or more nodes under attack, and communicate an attack-mitigation packet to the one or more nodes under attack by using the one or more intermediate nodes to relay the attack-mitigation packet to the one or more nodes under attack.

Abstract translation: 在一个实施例中，使用广播信道的控制环路控制可以用于与被攻击的节点进行通信。 管理设备可以接收指示计算机网络中的一个或多个节点受到攻击的数据。 然后，管理设备可以确定一个或多个中间节点处于受攻击的一个或多个节点附近，并且通过使用一个或多个中间节点将攻击缓解分组传送给被攻击的一个或多个节点，以将中继节点中继 攻击缓解包到被攻击的一个或多个节点。

公开(公告)号：US20150092560A1

公开(公告)日：2015-04-02

申请号：US14563472

申请日：2014-12-08

Applicant: Cisco Technology, Inc.

Inventor： Jonathan W. Hui ,  Wei Hong ,  Jeongyeup Paek ,  Philip Buonadonna

IPC: H04L12/801

CPC classification number: H04L47/12 ,  H04L41/0896 ,  H04L41/12 ,  H04L45/02 ,  H04L45/04 ,  H04L47/11

Abstract: In one embodiment, a device connected to a network receives at a network interface a first network size indicator for a first network and a second network size indicator for a second network. A difference between the first network size indicator and the second network size indicator is determined and a switching probability is calculated if the difference between the network size indicators is greater than a predetermined network size difference threshold. The device may then migrate from the first network to the second network based on the switching probability.

Abstract translation: 在一个实施例中，连接到网络的设备在网络接口处接收第一网络的第一网络大小指示符和用于第二网络的第二网络大小指示符。 确定第一网络大小指示符和第二网络大小指示符之间的差异，并且如果网络尺寸指示符之间的差大于预定的网络大小差异阈值，则计算切换概率。 然后，设备可以基于切换概率从第一网络迁移到第二网络。

公开(公告)号：US20150063365A1

公开(公告)日：2015-03-05

申请号：US14522580

申请日：2014-10-23

Applicant: Cisco Technology, Inc.

Inventor： Jonathan W. Hui ,  Wei Hong ,  Jean-Philippe Vasseur

IPC: H04L12/721 ,  H04B3/54

CPC classification number: H04B3/54 ,  H04L45/02 ,  H04L47/365 ,  H04L47/628

Abstract: In a multiple interface, low power and lossy network comprising a plurality of nodes, a sender node dynamically selects a data packet for setting a transmission parameter request in response to determining that an age value for a set of transmission parameters associated with a recipient device has expired or is expiring. The sender node selects an desired data packet for sending a transmission parameter request and transmits the selected data packet to the recipient device. The sender node receives a transmission parameter response from the recipient node comprising updated transmission parameters for that recipient node and then updates the current transmission parameters associated with the recipient node accordingly.

Abstract translation: 在包括多个节点的多接口，低功率和有损网络中，发送器节点动态地选择用于设置传输参数请求的数据分组，以响应于确定与接收方设备相关联的一组传输参数的年龄值具有 过期或正在过期。 发送方节点选择用于发送传输参数请求的期望数据分组，并将所选择的数据分组发送给接收方设备。 发送方节点从接收方节点接收包含该接收方节点的更新传输参数的传输参数响应，然后相应地更新与接收方节点相关联的当前传输参数。

公开(公告)号：US20150023369A1

公开(公告)日：2015-01-22

申请号：US13945874

申请日：2013-07-18

Applicant: Cisco Technology, Inc.

Inventor： Jonathan W. Hui ,  Wei Hong ,  Jean-Philippe Vasseur

IPC: H04L29/06

CPC classification number: H04L69/24 ,  H04B1/713 ,  H04W72/0406 ,  H04W84/18 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/22 ,  Y02D70/40

Abstract: In a multi-PHY, low power and lossy network comprising a plurality of nodes, a sender determines that a dwell time threshold limit for transmission of data will be exceeded by transmission of the data over a first network interface or that the recipient is unknown. The sender determines transmission parameters for the transmission of the data over the first network interface and transmits the transmission parameters to a receiver device over a second network interface that is different than the first network interface. The sender determines a channel on the first network interface for transmission of the data and transmits the determined channel with the transmission parameters to the receiver, or the receiver determines the channel on the first network interface for transmission of the data and transmits an indication of the determined channel to the sender in response to receiving the transmission parameters.

Abstract translation: 在包含多个节点的多PHY，低功率和有损网络中，发送方确定通过在第一网络接口上传输数据或者接收方未知的方式来超过数据传输的驻留时间阈值限制。 发送方确定通过第一网络接口传输数据的传输参数，并通过不同于第一网络接口的第二网络接口将传输参数发送到接收机设备。 发送方确定第一网络接口上的信道用于传输数据，并将具有传输参数的所确定的信道发送给接收机，或者接收机确定第一网络接口上的信道以传输数据，并发送 响应于接收到传输参数而将确定的信道发送给发送方。

公开(公告)号：US08891588B1

公开(公告)日：2014-11-18

申请号：US13960639

申请日：2013-08-06

Applicant: Cisco Technology, Inc.

Inventor： Jonathan W. Hui ,  Wei Hong ,  Jean-Philippe Vasseur

IPC: H04B1/00 ,  H04L12/753

CPC classification number: H04L45/306 ,  H04B1/713 ,  H04J3/0658 ,  H04L45/22 ,  H04L45/48

Abstract: In a multiple interface, low power and lossy network comprising a plurality of nodes, a low transmission power and medium transmission power topology are defined for the network and a channel-hopping schedule is defined for the devices operating in each topology. A sender determines that data is capable of being transmitted via a link on the low transmission power topology. The sender determines the transmission parameters for the transmission of the data over the link on the low transmission power topology and determines a low transmission power channel for transmission of the data. The sender transmits the determined channel and the transmission parameters to the receiver. The sender transmits the data via the determined channel in the low transmission power topology.

Abstract translation: 在包括多个节点的多接口，低功率和有损网络中，针对网络定义了低发射功率和中等传输功率拓扑，并为每个拓扑中运行的设备定义了跳频调度。 发送方确定数据能够通过低传输功率拓扑上的链路传输。 发送方确定通过低传输功率拓扑上的链路传输数据的传输参数，并确定用于传输数据的低传输功率信道。 发送方将确定的信道和传输参数发送到接收机。 发送方通过低传输功率拓扑中的确定信道发送数据。

公开(公告)号：US20140330947A1

公开(公告)日：2014-11-06

申请号：US14333074

申请日：2014-07-16

Applicant: Cisco Technology, Inc.

Inventor： Jonathan W. Hui ,  Lik Chuen Alec Woo ,  Wei Hong

IPC: H04L12/24

CPC classification number: H04L41/0803 ,  H04L45/14 ,  H04L61/2015 ,  H04L61/6059

Abstract: In one embodiment, each of a plurality of devices in a computer network is configured to i) transmit a unicasted dynamic host configuration protocol (DHCP) solicit message to a neighbor device having a route to a border router as an assumed DHCP relay without regard to location of a DHCP server, and ii) operate as a DHCP relay to receive unicasted DHCP solicit messages and relay the solicit message to the border router of the network without regard to location of the DHCP server, and to relay a DHCP reply to a corresponding requestor device.

Abstract translation: 在一个实施例中，计算机网络中的多个设备中的每一个被配置为i）向具有到边界路由器的路由器的邻居设备传输单播动态主机配置协议（DHCP）请求消息作为假定的DHCP中继，而不考虑 DHCP服务器的位置，以及ii）作为DHCP中继来接收单播的DHCP请求消息，并将请求消息中继到网络的边界路由器，而不考虑DHCP服务器的位置，并将DHCP应答中继到相应的 请求者设备

公开(公告)号：US08874788B2

公开(公告)日：2014-10-28

申请号：US13668744

申请日：2012-11-05

Applicant: Cisco Technology, Inc.

Inventor： Jean-Philippe Vasseur ,  Jonathan W. Hui

IPC: G06F15/173

CPC classification number: H04L45/121 ,  H04L45/14 ,  H04L45/302 ,  H04L45/42 ,  H04L45/48

Abstract: In one embodiment, a root of a directed acyclic graph (DAG) may determine transmission of critical traffic from a first device to a second device in a computer network using the DAG, and may also determine a maximum tolerable delay of the critical traffic. As such, the root may compute, based on a known topology of the computer network, a constrained shortest path first (CSPF) point-to-point (P2P) path from the first device to the second device to meet the maximum tolerable delay. The root may then inform the first device of the P2P path to the second device to cause the first device to use the P2P path for the critical traffic.

Abstract translation: 在一个实施例中，有向非循环图（DAG）的根可以使用DAG来确定计算机网络中的第一设备到第二设备的关键业务的传输，并且还可以确定关键业务的最大容许延迟。 因此，根可以基于计算机网络的已知拓扑来计算从第一设备到第二设备的约束最短路径优先（CSPF）点到点（P2P）路径以满足最大可容忍延迟。 然后，根可以将第一设备通知到第二设备的P2P路径，以使第一设备将P2P路径用于关键业务。