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61. 发明申请

US20150023313A1 Exclusive and Overlapping Transmission Unit Allocation and Use in a Network 有权
标题翻译：专用和重叠传输单元在网络中的分配和使用
公开(公告)号：US20150023313A1
公开(公告)日：2015-01-22
申请号：US13954725
申请日：2013-07-30
申请人： Pascal Thubert , Jean-Philippe Vasseur , Patrick Wetterwald
发明人： Pascal Thubert , Jean-Philippe Vasseur , Patrick Wetterwald
IPC分类号： H04W72/04
CPC分类号： H04L5/0055 , H04L1/00 , H04L1/18 , H04L1/1854 , H04L1/188 , H04L1/1893 , H04L1/1896 , H04L5/00 , H04L5/0005 , H04L5/0073 , H04L2001/125 , H04W72/02 , H04W72/0446 , H04W72/0453 , H04W72/121
摘要： 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 info nation 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.
摘要翻译：一个实施例在网络中分配和使用排他和重叠的传输单元。一个实施例包括在排他传输单元期间从网络中的第一网络节点发送信息，其中排他传输单元包括分配给第一网络节点的一个或多个无线时隙 - 频率配对以发送信息而没有另一个分配的网络传输单元提供来自在网络中通信的另一网络节点的重叠时隙频率干扰。一个实施例包括在重叠传输单元期间从第一网络节点发送信息，其中重叠传输单元包括分配给第一网络节点以发送信息的一个或多个无线时隙 - 频率配对，其中重叠传输单元重叠时隙频率与一个或多个其他分配的网络传输单元，如果同时使用将导致干扰。

62. 发明授权

US08862774B2 Dynamic keepalive parameters for reverse path validation in computer networks 有权
标题翻译：用于计算机网络中的反向路径验证的动态保持参数
公开(公告)号：US08862774B2
公开(公告)日：2014-10-14
申请号：US13230373
申请日：2011-09-12
申请人： Jean-Philippe Vasseur , Jonathan W. Hui
发明人： Jean-Philippe Vasseur , Jonathan W. Hui
IPC分类号： G06F15/173 , H04L12/721 , H04L12/703 , H04L12/751 , H04L12/707 , H04L12/761
CPC分类号： H04L45/026 , H04L45/16 , H04L45/22 , H04L45/28 , H04L45/36 , H04L45/70
摘要： In one embodiment, a network device determines a path from itself to a source device in a computer network, where the source device utilizes the path in reverse to reach the network device. Based on determining a reliability of the path in reverse, the network device may dynamically adjust one or more keepalive parameters for keepalive messages sent on the path. Accordingly, the network device may then send keepalive messages on the path based on the dynamically adjusted keepalive parameters.
摘要翻译：在一个实施例中，网络设备确定在自己到计算机网络中的源设备的路径，其中源设备利用相反的路径到达网络设备。基于反向确定路径的可靠性，网络设备可以动态调整在路径上发送的保持活动消息的一个或多个保持活动参数。因此，网络设备然后可以基于动态调整的保持活动参数在路径上发送保持活动消息。

63. 发明授权

US08855014B2 Distributed stateful path computation element overlay architecture 有权
标题翻译：分布状态路径计算元素覆盖架构
公开(公告)号：US08855014B2
公开(公告)日：2014-10-07
申请号：US13524071
申请日：2012-06-15
申请人： Stefano Previdi , Jean-Philippe Vasseur , Jan Medved , David Ward
发明人： Stefano Previdi , Jean-Philippe Vasseur , Jan Medved , David Ward
IPC分类号： H04L12/28 , H04L1/00
CPC分类号： H04L45/50 , H04L45/04
摘要： In one embodiment, a particular device in a computer network maintains a locally owned tunnel-state table, and joins a distributed hash table (DHT) ring. In addition, the locally owned tunnel-state table is shared with other devices of the DHT ring to establish a DHT-owned tunnel-state table. The particular device (and other devices) determines ownership of link-state advertisements (LSAs) for a specific portion of a traffic engineering database (TED) according to the DHT ring. As such, when the particular device (or any device) computes a path for a tunnel using a local TED, the particular device may request permission to use resources along the computed path that were advertised in particular LSAs from owners of those particular LSAs when not owned by the particular device.
摘要翻译：在一个实施例中，计算机网络中的特定设备维护本地拥有的隧道状态表，并且连接分布式散列表（DHT）环。此外，本地拥有的隧道状态表与DHT环的其他设备共享，以建立DHT拥有的隧道状态表。特定设备（和其他设备）根据DHT环确定针对流量工程数据库（TED）的特定部分的链路状态通告（LSA）的所有权。因此，当特定设备（或任何设备）使用本地TED计算隧道的路径时，特定设备可以请求允许沿着所计算的路径使用资源，这些资源在特定LSA的特定LSA中被发布，来自那些特定LSA的所有者由特定设备拥有。

64. 发明授权

US08817591B2 Inter-domain signaling to update remote path computation elements after a call set-up failure 有权
标题翻译：呼叫建立失败后更新远程路径计算元素的域间信令
公开(公告)号：US08817591B2
公开(公告)日：2014-08-26
申请号：US13524168
申请日：2012-06-15
申请人： Jean-Philippe Vasseur , Stefano Previdi
发明人： Jean-Philippe Vasseur , Stefano Previdi
IPC分类号： H04L1/00 , H04L12/26
CPC分类号： H04L41/12 , H04L45/04 , H04L45/22 , H04L45/28 , H04L45/50 , H04L47/724 , H04L47/785 , H04L47/825
摘要： In one embodiment, a router in a non-originating domain receives a signal to establish a tunnel, the signal having an identification (ID) of an originating path computation element (PCE) of an originating domain from where the signal to establish the tunnel originated. In response to determining that establishment of the tunnel fails, the router may signal the failure of the establishment to a local PCE of the non-originating domain, the signaling indicating the ID of the originating PCE to cause the local PCE to provide updated routing information of the non-originating domain to the originating PCE.
摘要翻译：在一个实施例中，非起始域中的路由器接收建立隧道的信号，该信号具有始发域的始发路径计算元件（PCE）的标识（ID），其中建立隧道的信号源自。响应于确定隧道的建立失败，路由器可以将建立的失败信号发送到非始发域的本地PCE，该信令指示发起PCE的ID，以使本地PCE提供更新的路由信息的非始发域到原始PCE。

65. 发明授权

US08806633B2 Coordinated detection of a grey-hole attack in a communication network 有权
标题翻译：协调检测通信网络中的灰洞攻击
公开(公告)号：US08806633B2
公开(公告)日：2014-08-12
申请号：US13214874
申请日：2011-08-22
申请人： Shmuel Shaffer , Jean-Philippe Vasseur , Jonathan W. Hui
发明人： Shmuel Shaffer , Jean-Philippe Vasseur , Jonathan W. Hui
IPC分类号： G08B23/00 , G06F11/30
CPC分类号： H04L63/1441 , H04L2463/143
摘要： In one embodiment, a security device receives one or more first unique identifications of packets sent by a first device to a second device for which a corresponding acknowledgment was purportedly returned by the second device to the first device. The security device also receives one or more second unique identifications of packets received by the second device from the first device and acknowledged by the second device to the first device. By comparing the first and second unique identifications, the security device may then determine whether acknowledgments received by the first device were truly returned from the second device based on whether the first and second unique identifications exactly match.
摘要翻译：在一个实施例中，安全设备接收由第一设备发送到第二设备的分组发送的分组的一个或多个第一唯一标识，由第二设备将第二设备的相应确认声称地返回给第二设备。安全设备还从第一设备接收由第二设备接收的分组并由第二设备确认的分组的一个或多个第二唯一标识符给第一设备。通过比较第一和第二唯一标识，安全设备然后可以基于第一和第二唯一标识是否完全匹配来确定由第一设备接收到的确认是否真的从第二设备返回。

66. 发明授权

US08634292B2 Sliced tunnels in a computer network 有权
标题翻译：计算机网络中的切片隧道
公开(公告)号：US08634292B2
公开(公告)日：2014-01-21
申请号：US13247548
申请日：2011-09-28
申请人： Jean-Philippe Vasseur , Jeff Apcar
发明人： Jean-Philippe Vasseur , Jeff Apcar
IPC分类号： H04J1/16
CPC分类号： H04L12/4633 , H04L45/00 , H04L45/50 , H04L2212/00
摘要： In one embodiment, a path for a sliced tunnel that extends from a head-end node to a tail-end node is computed. The sliced tunnel is furcated into a plurality of child tunnels at one or more fork nodes located downstream from the head-end node. Each child tunnel carries a portion of traffic for the sliced tunnel. The sliced tunnel is merged at one or more merge nodes located downstream from respective ones of the fork nodes. The portions of traffic on the child tunnels are aggregated at the merge nodes. The head-end node sends a signaling message to establish the sliced tunnel along the computed path. The signaling message includes an indication of the one or more fork nodes where the sliced tunnel is furcated into child tunnels and the one or more merge nodes where child tunnels are merged. The head-end node then forwards traffic onto the sliced tunnel.
摘要翻译：在一个实施例中，计算从头端节点延伸到尾端节点的切片隧道的路径。切割的隧道在位于头端节点下游的一个或多个叉节点处分割成多个子隧道。每个子隧道都携带切片隧道的一部分流量。切片隧道在位于相应叉节点下游的一个或多个合并节点处合并。子隧道上的部分流量在合并节点处聚合。头端节点发送信令消息，以沿着计算的路径建立切片隧道。所述信令消息包括所述一个或多个叉节点的指示，其中所述切片的隧道分割成子隧道，以及所述一个或多个合并节点，其中子隧道被合并。然后，头端节点将流量转发到切片隧道。

67. 发明申请

US20130336116A1 CONGESTION-BASED NOTIFICATION DURING FAST REROUTE OPERATIONS IN STATEFUL PATH COMPUTATION ELEMENT ENVIRONMENTS 有权
标题翻译：紧急路线计算元件环境中快速REROUTE操作下的基于约束的通知
公开(公告)号：US20130336116A1
公开(公告)日：2013-12-19
申请号：US13524135
申请日：2012-06-15
申请人： Jean-Philippe Vasseur , Stefano Previdi , Clarence Filsfils
发明人： Jean-Philippe Vasseur , Stefano Previdi , Clarence Filsfils
IPC分类号： H04L12/56
CPC分类号： H04L45/125 , H04L45/22 , H04L45/28 , H04L47/11 , H04L47/825
摘要： In one embodiment, once activation of use of a backup tunnel is detected for a primary tunnel, then a level of congestion of the path of the backup tunnel may be determined. In response to the level being greater than a threshold, a head-end node of the primary tunnel is triggered to reroute the primary tunnel (e.g., requesting to a path computation element). Conversely, in response to the level not being greater than the threshold, the backup tunnel is allowed to remain activated.
摘要翻译：在一个实施例中，一旦检测到主隧道的备用隧道的使用的激活，则可以确定备用隧道的路径的拥塞级别。响应于该级别大于阈值，主隧道的前端节点被触发以重新路由主隧道（例如，请求到路径计算元件）。相反，响应级别不大于阈值，允许备份隧道保持激活。

68. 发明授权

US08593986B2 Lightweight storing mode for constrained computer networks 有权
标题翻译：用于受限计算机网络的轻量级存储模式
公开(公告)号：US08593986B2
公开(公告)日：2013-11-26
申请号：US13150956
申请日：2011-06-01
申请人： Jean-Philippe Vasseur , Jonathan W. Hui
发明人： Jean-Philippe Vasseur , Jonathan W. Hui
IPC分类号： H04J1/16
CPC分类号： H04L45/34 , H04L45/74
摘要： In one embodiment, a management device, such as a root node, monitors Internet Protocol (IP) overhead (e.g., IP header sizes during source-routing or route table sizes) within a directed acyclic graph (DAG) in a computer network. If it is determined that the IP overhead is above a configured threshold, then in response, a trigger is initiated to have devices within the DAG label-switch downward traffic directed away from the root node within the DAG. In another embodiment, a device communicating within a DAG stores IP routes corresponding to upward traffic from the device directed toward a root of the DAG, and IP-routes upward traffic based on the IP routes. Conversely, the device also stores labels corresponding to downward traffic from the device directed away from the root of the DAG, and label-switches downward traffic based on the labels, accordingly.
摘要翻译：在一个实施例中，诸如根节点的管理设备在计算机网络中的有向无环图（DAG）内监视互联网协议（IP）开销（例如，源路由或路由表大小期间的IP报头大小）。如果确定IP开销高于配置的阈值，则作为响应，启动触发以使DAG标签中的设备向下转发指向远离DAG内的根节点。在另一个实施例中，在DAG内通信的设备存储对应于来自指向DAG的根的设备的向上业务的IP路由，并且基于IP路由IP路由上行业务。相反，该设备还存储对应于来自远离DAG的根的设备的向下流量的标签，并且相应地基于标签对下行流量进行标签交换。

69. 发明授权

US08553688B2 Dynamic allocation of context identifiers for header compression 有权
标题翻译：标头压缩的上下文标识符的动态分配
公开(公告)号：US08553688B2
公开(公告)日：2013-10-08
申请号：US13192750
申请日：2011-07-28
申请人： Jean-Philippe Vasseur , Jonathan W. Hui
发明人： Jean-Philippe Vasseur , Jonathan W. Hui
IPC分类号： H04L12/28 , H04J1/16
CPC分类号： H04L61/6072 , H04L45/04 , H04L45/38 , H04L45/54 , H04L45/70 , H04L45/745 , H04L61/106 , H04L61/6059
摘要： In one embodiment, routable traffic through one or more border routers between a local computer network and a global computer network is monitored in order to characterize use of one or more global prefixes of the traffic. A particular set of the global prefixes, up to a maximum number, that are most frequently used may be mapped into a set of context identifiers (IDs) having a shorter bit-length than the global prefixes. The context IDs may then be distributed into the local computer network, and the one or more border routers convert between the context IDs and the global prefixes, accordingly.
摘要翻译：在一个实施例中，监视本地计算机网络和全局计算机网络之间的一个或多个边界路由器的可路由业务，以便表征业务的一个或多个全局前缀的使用。可以将最常使用的最大数量的全局前缀的特定集合映射到具有比全局前缀更短的位长的上下文标识符（ID）集合中。然后，上下文ID可以被分发到本地计算机网络中，并且一个或多个边界路由器相应地在上下文ID和全局前缀之间转换。

70. 发明授权

US08531976B2 Locating tunnel failure based on next-next hop connectivity in a computer network 有权
标题翻译：基于计算机网络中的下一跳连接定位隧道故障
公开(公告)号：US08531976B2
公开(公告)日：2013-09-10
申请号：US12044620
申请日：2008-03-07
申请人： Jean-Philippe Vasseur , Danny Prairie
发明人： Jean-Philippe Vasseur , Danny Prairie
IPC分类号： H04J1/16
CPC分类号： H04L41/0677 , H04L43/0811
摘要： In one embodiment, a trigger is signaled to protect a tunnel from a head-end node to one or more tail-end nodes in a computer network via one or more intermediate nodes along the tunnel. One or more receiving nodes along the tunnel receive the trigger, and in response, establish a tunnel connectivity verification session from the receiving node to a corresponding downstream next-next-hop (NNHOP) node along the tunnel. Illustratively, the head-end node may thus recompute a new tunnel path excluding a path segment corresponding to a particular failed tunnel connectivity verification session.
摘要翻译：在一个实施例中，通过沿着隧道的一个或多个中间节点，用信号通知触发器以保护隧道从计算机网络中的头端节点到一个或多个尾端节点。沿着隧道的一个或多个接收节点接收触发，并且作为响应，建立从接收节点到沿着隧道的对应的下游下一跳（NNHOP）节点的隧道连接性验证会话。说明性地，头端节点因此可以重新计算除了对应于特定故障隧道连通性验证会话的路径段的新隧道路径。

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