公开(公告)号：US09413479B2

公开(公告)日：2016-08-09

申请号：US14155474

申请日：2014-01-15

Applicant: Cisco Technology, Inc.

Inventor： Patrick Wetterwald ,  Pascal Thubert ,  Vincent J. Ribiere ,  Jean-Philippe Vasseur

IPC: H04L12/40 ,  H04J3/16 ,  H04W16/02 ,  H04W84/10

CPC classification number: H04J3/16 ,  H04L2012/40208 ,  H04W16/02 ,  H04W84/10 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/22

Abstract: In one embodiment, the locations of a plurality of network devices in a low power and lossy network (LLN) are determined along an intelligent wire. One or more neighboring devices for each network device in the plurality are identified based on the locations of the network devices along the intelligent wire. A communication schedule for the network devices is determined that prevents neighboring devices along the intelligent wire from transmitting on the same frequency. The network devices are assigned to communication time slots based on the communication schedule. The network devices are also assigned frequency offsets based on the communication schedule.

Abstract translation: 在一个实施例中，多个网络设备在低功率和有损耗网络（LLN）中的位置沿智能线路确定。 基于网络设备沿着智能电线的位置来识别多个中的每个网络设备的一个或多个相邻设备。 确定网络设备的通信调度，以防止沿着智能线路的相邻设备在相同频率上发送。 根据通信时间表将网络设备分配给通信时隙。 网络设备也根据通信时间表分配频率偏移。

公开(公告)号：US09088608B2

公开(公告)日：2015-07-21

申请号：US13795993

申请日：2013-03-12

Applicant: Cisco Technology, Inc.

Inventor： Pascal Thubert ,  Eric Levy-Abegnoli ,  Vincent J. Ribiere

IPC: H04L29/06 ,  H04W12/12

CPC classification number: H04L63/1458 ,  H04W12/12

Abstract: In one embodiment, a switch in a computer network may receive a neighbor solicitation (NS) message for a target node for which no neighbor authentication (NA) reply has been received at the switch. The switch may then determine whether to forward the NS message to only non-constrained links of the switch, or to both non-constrained links and constrained links of the switch. The determining may be configured to intermittently result in forwarding the NS message for the target node to both the non-constrained links and the constrained links. The switch may then forward the NS message according to the determination.

Abstract translation: 在一个实施例中，计算机网络中的交换机可以为在交换机处没有接收到邻居认证（NA）应答的目标节点接收邻居请求（NS）消息。 交换机然后可以确定是否将NS消息转发到仅交换机的非受约束的链路，还是将交换机的非约束链路和受限链路两者转发。 该确定可以被配置为间歇地导致将目标节点的NS消息转发到非约束链路和受约束链路两者。 然后，交换机可以根据确定转发NS消息。

公开(公告)号：US08925084B2

公开(公告)日：2014-12-30

申请号：US13662023

申请日：2012-10-26

Applicant: Cisco Technology, Inc.

Inventor： Pascal Thubert ,  Eric Levy-Abegnoli ,  Vincent J. Ribiere

IPC: H04L29/06 ,  H04L12/781

CPC classification number: H04L63/1458 ,  G06F21/554 ,  H04L45/52

Abstract: In one embodiment, a device detects a denial-of-service attack and generates a message in response to the detection of the denial-of-service attack. The message is then virally distributed to a plurality of subscribed devices.

Abstract translation: 在一个实施例中，设备检测到拒绝服务攻击，并响应于对拒绝服务攻击的检测而生成消息。 然后将消息病毒地分发到多个订阅的设备。

公开(公告)号：US09654502B2

公开(公告)日：2017-05-16

申请号：US14666717

申请日：2015-03-24

Applicant: Cisco Technology, Inc.

Inventor： Pascal Thubert ,  Eric Levy-Abegnoli ,  Vincent J. Ribiere

IPC: G06F7/04 ,  H04L29/06 ,  H04L12/747 ,  H04L29/12 ,  G06F21/10

CPC classification number: H04L63/1458 ,  G06F21/10 ,  H04L45/742 ,  H04L61/103 ,  H04L61/6009 ,  H04L61/6059 ,  H04L2463/142

Abstract: In one embodiment, a device (e.g., switch or registry) maintains a binding table for all internet protocol (IP) addresses in a particular subnet associated with the device, and in response to receiving a neighbor solicitation (NS) lookup message from a router for a particular address, determines whether the particular address is within the binding table. When the particular address is not within the binding table, the device causes the router to not store the particular address in a neighbor discovery (ND) cache at the router (e.g., by responding to clear the cache, or ignoring to prevent state from being created). In another embodiment, the ND-requesting router ensures that the particular address is not kept in an ND cache at the router in response to the device indicating that the particular address is not within its binding table (e.g., an explicit response to clear, or absence of instruction to store state).

公开(公告)号：US20140123278A1

公开(公告)日：2014-05-01

申请号：US13662023

申请日：2012-10-26

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Pascal Thubert ,  Eric Levy-Abegnoli ,  Vincent J. Ribiere

IPC: G06F21/00

CPC classification number: H04L63/1458 ,  G06F21/554 ,  H04L45/52

Abstract: In one embodiment, a device detects a denial-of-service attack and generates a message in response to the detection of the denial-of-service attack. The message is then virally distributed to a plurality of subscribed devices.

Abstract translation: 在一个实施例中，设备检测到拒绝服务攻击，并响应于对拒绝服务攻击的检测而生成消息。 然后将消息病毒地分发到多个订阅的设备。

公开(公告)号：US20150200738A1

公开(公告)日：2015-07-16

申请号：US14155474

申请日：2014-01-15

Applicant: CISCO TECHNOLOGY, INC

Inventor： Patrick Wetterwald ,  Pascal Thubert ,  Vincent J. Ribiere ,  Jean-Philippe Vasseur

IPC: H04J3/16

CPC classification number: H04J3/16 ,  H04L2012/40208 ,  H04W16/02 ,  H04W84/10 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/22

Abstract: In one embodiment, the locations of a plurality of network devices in a low power and lossy network (LLN) are determined along an intelligent wire. One or more neighboring devices for each network device in the plurality are identified based on the locations of the network devices along the intelligent wire. A communication schedule for the network devices is determined that prevents neighboring devices along the intelligent wire from transmitting on the same frequency. The network devices are assigned to communication time slots based on the communication schedule. The network devices are also assigned frequency offsets based on the communication schedule.

Abstract translation: 在一个实施例中，多个网络设备在低功率和有损耗网络（LLN）中的位置沿智能线路确定。 基于网络设备沿着智能电线的位置来识别多个中的每个网络设备的一个或多个相邻设备。 确定网络设备的通信调度，以防止沿着智能线路的相邻设备在相同频率上发送。 根据通信时间表将网络设备分配给通信时隙。 网络设备也根据通信时间表分配频率偏移。

公开(公告)号：US20150195304A1

公开(公告)日：2015-07-09

申请号：US14666717

申请日：2015-03-24

Applicant: Cisco Technology, Inc.

Inventor： Pascal Thubert ,  Eric Levy-Abegnoli ,  Vincent J. Ribiere

IPC: H04L29/06 ,  H04L29/12

CPC classification number: H04L63/1458 ,  G06F21/10 ,  H04L45/742 ,  H04L61/103 ,  H04L61/6009 ,  H04L61/6059 ,  H04L2463/142

Abstract: In one embodiment, a device (e.g., switch or registry) maintains a binding table for all internet protocol (IP) addresses in a particular subnet associated with the device, and in response to receiving a neighbor solicitation (NS) lookup message from a router for a particular address, determines whether the particular address is within the binding table. When the particular address is not within the binding table, the device causes the router to not store the particular address in a neighbor discovery (ND) cache at the router (e.g., by responding to clear the cache, or ignoring to prevent state from being created). In another embodiment, the ND-requesting router ensures that the particular address is not kept in an ND cache at the router in response to the device indicating that the particular address is not within its binding table (e.g., an explicit response to clear, or absence of instruction to store state).

Abstract translation: 在一个实施例中，设备（例如，交换机或注册表）维护与设备相关联的特定子网中的所有互联网协议（IP）地址的绑定表，并且响应于从路由器接收到邻居请求（NS）查找消息 对于特定地址，确定特定地址是否在绑定表内。 当特定地址不在绑定表内时，设备会使路由器不将特定地址存储在路由器的邻居发现（ND）缓存中（例如，通过响应清除缓存或忽略以防止状态为 创建）。 在另一个实施例中，ND请求路由器确保特定地址不被保留在路由器处的ND高速缓存中，以响应于设备指示特定地址不在其绑定表内（例如，明确的清除响应或 没有指令存储状态）。

公开(公告)号：US20140282864A1

公开(公告)日：2014-09-18

申请号：US13795993

申请日：2013-03-12

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Pascal Thubert ,  Eric Levy-Abegnoli ,  Vincent J. Ribiere

IPC: H04L29/06

CPC classification number: H04L63/1458 ,  H04W12/12

Abstract: In one embodiment, a switch in a computer network may receive a neighbor solicitation (NS) message for a target node for which no neighbor authentication (NA) reply has been received at the switch. The switch may then determine whether to forward the NS message to only non-constrained links of the switch, or to both non-constrained links and constrained links of the switch. The determining may be configured to intermittently result in forwarding the NS message for the target node to both the non-constrained links and the constrained links. The switch may then forward the NS message according to the determination.

Abstract translation: 在一个实施例中，计算机网络中的交换机可以接收到在交换机处没有接收到相邻认证（NA）应答的目标节点的邻居请求（NS）消息。 交换机然后可以确定是否将NS消息转发到仅交换机的非受约束的链路，或者转发到非限制链路和交换机的约束链路。 该确定可以被配置为间歇地导致将目标节点的NS消息转发到非约束链路和受约束链路两者。 然后，交换机可以根据确定转发NS消息。