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71.发明授权Network server layer providing disjoint channels in response to client-layer disjoint path requests 有权网络服务器层提供响应于客户端层不相交路径请求的不相交通道公开(公告)号：US09049266B2
公开(公告)日：2015-06-02
申请号：US13801667
申请日：2013-03-13
申请人： Clarence Filsfils , Ornan Alexander Gerstel , Gabriele Maria Galimberti , Jean-Philippe Vasseur , David Delano Ward , Walid Wakim
发明人： Clarence Filsfils , Ornan Alexander Gerstel , Gabriele Maria Galimberti , Jean-Philippe Vasseur , David Delano Ward , Walid Wakim
IPC分类号： H04J14/00 , H04L29/06 , H04L12/54 , H04L12/723 , H04Q11/00
CPC分类号： H04B10/27 , H04B10/25 , H04J14/0267 , H04L45/128 , H04L45/50 , H04L67/42 , H04Q11/0005 , H04Q11/0066 , H04Q2011/0077
摘要： In one embodiment, a network server layer provides disjoint channels in response to client-layer disjoint path requests. For example, the network layer can be an optical network, and the client layer may be a packet switching layer (e.g., label switching, Internet Protocol). In one embodiment, a server-layer node receives a client-layer disjoint path request to provide a server-layer channel through a server-layer network. The client-layer disjoint path request includes an identifier corresponding to an existing client-layer path that traverses a current channel through the server-layer network that does not include the server-layer node. The server-layer network determines a particular channel through the server-layer network that is disjoint to the current channel based on route information of the current channel, and then signaling is performed within the server-layer network to establish the particular channel.
摘要翻译： 在一个实施例中，网络服务器层响应于客户端层不相交路径请求而提供不相交的信道。 例如，网络层可以是光网络，并且客户端层可以是分组交换层（例如，标签交换，因特网协议）。 在一个实施例中，服务器层节点接收客户端层不相交路径请求，以通过服务器层网络提供服务器层信道。 客户端层不相交路径请求包括对应于穿过不包括服务器层节点的服务器层网络的当前信道的现有客户端层路径的标识符。 服务器层网络基于当前信道的路由信息，通过服务器层网络确定与当前信道不相关的特定信道，然后在服务器层网络内执行信令以建立特定信道。
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72.发明申请Sensor Data Transport and Consolidation Within Communication Nodes in a Network 有权传感器数据传输和网络中通信节点的合并公开(公告)号：US20150071255A1
公开(公告)日：2015-03-12
申请号：US14021744
申请日：2013-09-09
IPC分类号： H04L5/00
CPC分类号： H04L5/0037 , H04L12/46 , H04L12/56 , H04W4/38 , Y02D70/144
摘要： In one embodiment, sensor data is transported in a network to a rendezvous point network node, which consolidates the information into a consolidated result which is communicated to the destination. Such consolidation by a network node reduces the number of paths required in the network between the sensors and the destination. One embodiment includes acquiring, by each of a plurality of originating nodes in a wireless deterministic network, external data related to a same physical event; communicating through the network said external data from each of the plurality of originating nodes to a rendezvous point network node (RP) within the network; processing, by the RP, said external data from each of the plurality of originating nodes to produce a consolidated result; and communicating the consolidated result to a destination node of the network. In one embodiment, the network is a low power lossy network (LLN).
摘要翻译： 在一个实施例中，传感器数据在网络中传送到会合点网络节点，其将信息合并到通信到目的地的综合结果中。 网络节点的这种整合减少了传感器和目的地之间网络中所需的路径数量。 一个实施例包括由无线确定性网络中的多个始发节点中的每一个获取与相同物理事件相关的外部数据; 通过所述网络将来自所述多个始发节点中的每一个的所述外部数据传送到所述网络内的会合点网络节点（RP）; 通过RP处理来自多个始发节点中的每一个的外部数据来产生合并结果; 并将合并结果传送到网络的目的地节点。 在一个实施例中，网络是低功率有损网络（LLN）。
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公开(公告)号：US08949959B2
公开(公告)日：2015-02-03
申请号：US13400991
申请日：2012-02-21
IPC分类号： H04L29/00
CPC分类号： H04L63/065 , H04L45/00 , H04W40/24
摘要： In one embodiment, a management device in a computer network determines when nodes of the computer network join any one of a plurality of field area routers (FARs), which requires a shared-media mesh security key for that joined FAR. The management device also maintains a database that indicates to which FAR each node in the computer network is currently joined, and to which FARs, if any, each node had previously joined, where the nodes are configured to maintain the mesh security key for one or more previously joined FARs in order to return to those previously joined FARs with the maintained mesh security key. Accordingly, in response to an updated mesh security key for a particular FAR of the plurality of FARs, the management node initiates distribution of the updated mesh security key to nodes having previously joined that particular FAR that are not currently joined to that particular FAR.
摘要翻译： 在一个实施例中，计算机网络中的管理设备确定计算机网络的何时节点连接多个场区域路由器（FAR）中的任何一个，其需要用于该加入的FAR的共享 - 媒体网状安全密钥。 管理设备还维护一个数据库，指示计算机网络中每个节点当前加入哪个FAR，以及每个节点先前已加入的哪个FAR（如果有的话），其中节点被配置为维护一个或多个节点的网状安全密钥 以前加入的FAR，以便返回到以前加入的FAR与维护的网状安全密钥。 因此，响应于针对多个FAR的特定FAR的更新的网状安全密钥，管理节点发起更新的网状安全密钥到先前已加入到当前未连接到该特定FAR的特定FAR的节点的分发。
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74.发明申请公开(公告)号：US20150023328A1
公开(公告)日：2015-01-22
申请号：US14020936
申请日：2013-09-09
IPC分类号： H04W72/04
CPC分类号： H04W72/0446 , H04J3/1694 , H04L43/067 , H04L43/0876 , H04L45/32 , H04W40/023
摘要： In one embodiment, a network of nodes is configured to communicate according to a configuration of Available Routing Construct (ARC) chains as well as monitoring communication in the network, and/or selectively controls whether or not provisioned particular links will be used. One embodiment colors nodes of the network (e.g., a wireless deterministic network) along different paths through the network and marks packets with the color of each traversed node to track a path taken by a packet. One embodiment sends a particular packet through the network and marks over which links the packet traverses and aggregates these traversed links of other copies of the particular packet. One embodiment controls whether or not the provisioned time slots are used based on flooding a control packet through the network with enable or disable information for each of these links.
摘要翻译： 在一个实施例中，节点网络被配置为根据可用路由构造（ARC）链的配置进行通信，以及监视网络中的通信，和/或选择性地控制是否使用所提供的特定链路。 一个实施例沿着通过网络的不同路径来颜色网络的节点（例如，无线确定性网络），并且以每个遍历节点的颜色标记分组以跟踪由分组采取的路径。 一个实施例通过网络发送特定数据包，并标记数据包穿过哪个链接并聚合特定数据包的其他副本的这些遍历链接。 一个实施例控制是否基于通过网络淹没控制分组来使用所提供的时隙，而对于这些链路中的每一个，启用或禁用信息。
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75.发明申请公开(公告)号：US20150023313A1
公开(公告)日：2015-01-22
申请号：US13954725
申请日：2013-07-30
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。
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76.发明授权Dynamic keepalive parameters for reverse path validation in computer networks 有权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
IPC分类号： G06F15/173 , H04L12/721 , H04L12/703 , H04L12/751 , H04L12/707 , H04L12/761
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。
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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
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。
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78.发明授权Inter-domain signaling to update remote path computation elements after a call set-up failure 有权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
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。
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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。
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80.发明申请CONGESTION-BASED NOTIFICATION DURING FAST REROUTE OPERATIONS IN STATEFUL PATH COMPUTATION ELEMENT ENVIRONMENTS 有权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
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。
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