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公开(公告)号：US20110228788A1
公开(公告)日：2011-09-22
申请号：US12727893
申请日：2010-03-19
IPC分类号： H04L12/56
CPC分类号： H04L41/12 , H04L45/02 , H04L45/48 , Y04S40/164
摘要： 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.
摘要翻译： 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” 作为到父节点P的父节点。节点N然后还可以选择具有与GP和N的连接性的替代父节点“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。
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52.发明授权Arrangement in a router for distributing a routing rule used to generate routes based on a pattern of a received packet 有权路由器中的布置，用于分配用于基于接收到的分组的模式生成路由的路由规则公开(公告)号：US07760701B2
公开(公告)日：2010-07-20
申请号：US10429851
申请日：2003-05-06
IPC分类号： H04L12/28
CPC分类号： H04L29/12783 , H04L29/12009 , H04L45/02 , H04L45/025 , H04L45/54 , H04L45/566 , H04L45/7457 , H04L61/35 , H04W8/087
摘要： 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, specifies a corresponding address prefix pattern rule for extracting an identified pattern from a portion of the destination address, and a gateway address pattern rule for generating a gateway address, for a gateway providing reachability to the destination address, based on applying the identified pattern to a specified portion 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 according to a prescribed distance vector routing protocol (e.g., Multiprotocol Extension for Border Gateway Protocol).
摘要翻译： 路由器配置为与其他路由器共享路由规则，路由规则根据规定的拓扑定义聚合路由。 路由器用于路由具有相应匹配目的地址前缀的分组的每个路由规则指定相应的地址前缀模式规则，用于从目的地地址的一部分中提取识别的模式，以及用于生成网关的网关地址模式规则 基于将所识别的模式应用于网关地址的指定部分的用于提供对目的地地址的可达性的网关的地址。 路由器生成描述地址前缀模式规则和网关地址模式规则的路由更新消息，并根据规定的距离向量路由协议（例如，用于边界网关协议的多协议扩展）将路由更新消息输出到第二路由器。
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公开(公告)号：US07729328B2
公开(公告)日：2010-06-01
申请号：US11686105
申请日：2007-03-14
CPC分类号： H04L65/608 , H04L1/0057 , H04L1/08
摘要： A real-time data transport protocol directed to aggregating multiple packets of a real-time protocol session and transmitting redundant copies of the packets as defined by a sliding window. In particular implementations, a method comprising accessing a plurality of packets of a real-time protocol session; aggregating, over a sliding window, a contiguous sequence of packets in the plurality of packets into real-time data transport packets, and transmitting the real-time data transport packets to a receiving node.
摘要翻译： 一种实时数据传输协议，用于聚合实时协议会话的多个分组，并发送由滑动窗口定义的分组的冗余副本。 在特定实现中，一种方法包括访问实时协议会话的多个分组; 在滑动窗口中将多个分组中的连续的分组序列聚合成实时数据传输分组，并将实时数据传输分组发送到接收节点。
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54.发明申请公开(公告)号：US20090024758A1
公开(公告)日：2009-01-22
申请号：US11826594
申请日：2007-07-17
IPC分类号： G06F15/16
CPC分类号： H04W12/12 , H04L45/745 , H04L63/1416 , H04L63/1458 , H04W80/04
摘要： In one embodiment, a method comprises initiating neighbor discovery in response to detecting an absence of an IP destination address of a received data packet within a neighbor cache, including outputting a neighbor solicitation message targeting the IP destination address into a network served by the router, generating a hash index value based on the IP destination address combined with a randomized token stored in the router, and storing the data packet in a selected one of a plurality of pending message queues in the router based on the corresponding hash index value, each pending message queue configured for storing stored data packets having the corresponding hash index value and awaiting respective solicited neighbor advertisement messages from the network; and detecting whether the router is encountering a neighbor discovery denial of service attack based on a determined distribution of the stored data packets among the pending message queues.
摘要翻译： 在一个实施例中，一种方法包括响应于检测到相邻高速缓存中接收到的数据分组的IP目的地地址的不存在而启动邻居发现，包括将针对该IP目的地地址的邻居请求消息输出到由路由器服务的网络中， 基于与存储在路由器中的随机化标记组合的IP目的地地址生成散列索引值，并且基于相应的散列索引值将数据分组存储在路由器中的多个未决消息队列中的所选择的一个中，每个等待 消息队列，用于存储具有相应哈希索引值的存储数据分组，并且等待来自网络的相应的被请求的相邻广告消息; 以及基于所确定的等待消息队列中存储的数据分组的分布来检测路由器是否遇到邻居发现拒绝服务攻击。
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55.发明申请TREE BASED WIRELESS MESH FOR AN OSPF NETWORK WITH INTRA-TREE COMMUNICATION OPTIMIZATION 有权基于TREE的无线网络，用于具有内部通信优化的OSPF网络公开(公告)号：US20080080401A1
公开(公告)日：2008-04-03
申请号：US11537298
申请日：2006-09-29
申请人： Vincent Ribiere , Abhay Roy , Pascal Thubert , Patrick Wetterwald
发明人： Vincent Ribiere , Abhay Roy , Pascal Thubert , Patrick Wetterwald
摘要： A system for providing a tree topology for a network having an interior gateway protocol. A first router receives a hello message from all connected routers in the network. The hello messages include tree topology information. The first router then uses the tree topology information to determine a parent of the router. The first router then establishes connections with directly connected routers at the same level in the tree topology. The first router also generates link messages that include all of the prefixes for children of the first router and broadcasts the link messages.
摘要翻译： 一种用于为具有内部网关协议的网络提供树形拓扑的系统。 第一个路由器从网络中的所有连接的路由器收到一条hello消息。 hello消息包括树形拓扑信息。 然后，第一个路由器使用树形拓扑信息来确定路由器的父节点。 然后，第一个路由器建立与树形拓扑中同一级别的直连路由器的连接。 第一个路由器还生成链路消息，其中包含第一个路由器的子节点的所有前缀，并广播链路消息。
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56.发明申请公开(公告)号：US20070230410A1
公开(公告)日：2007-10-04
申请号：US11391361
申请日：2006-03-29
IPC分类号： H04Q7/24
摘要： A clusterhead of a tree-based, mobile ad hoc network includes a mobile IP proxy resource for registering a received binding update request from a mobile ad hoc router within the network, creating a first mobile IP tunnel with the mobile ad hoc router, sending a second binding update request to a remote home agent of the mobile ad hoc router, and initiating a second mobile IP tunnel between the clusterhead and the home agent. If a packet received from the mobile ad hoc router specifies a destination determined as reachable within the mobile ad hoc network, use of the second mobile IP tunnel is minimized by outputting the packet toward the destination according to the mobile ad hoc routing protocol. If the packet is not reachable within the mobile ad hoc network, the packet is forwarded via the second mobile IP tunnel to ensure packet transmission is topologically correct.
摘要翻译： 基于树的移动自组织网络的簇头包括用于从网络内的移动自组织路由器注册接收的绑定更新请求的移动IP代理资源，与移动自组织路由器建立第一移动IP隧道，发送 第二绑定更新请求到移动自组织路由器的远程归属代理，以及在集群头和归属代理之间发起第二移动IP隧道。 如果从移动自组织路由器接收到的分组指定了确定为在移动自组织网络内可达的目的地，则根据移动自组织路由协议将分组向目的地输出，使得第二移动IP隧道被最小化。 如果分组在移动自组织网络内不可达，则分组经由第二移动IP隧道转发，以确保分组传输在拓扑上正确。
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57.发明授权公开(公告)号：US07190678B2
公开(公告)日：2007-03-13
申请号：US10281112
申请日：2002-10-28
摘要： A mobile router is configured for attaching to a selected router in a clustered network (e.g., a mobile ad hoc network) based on identifying a network topology model of the clustered network from received router advertisement messages that include tree information option fields specifying attributes of the network topology model. The mobile router selects which router advertisement originator to attach to based on correlating the attributes of the router advertisement originators relative to identified priorities, and orders the router advertisement originators within a default router list based on the identified priorities. If the mobile router detects a router from a second clustered network, the mobile router advertises to the attachment router that the second clustered network is reachable, enabling the two clustered networks to communicate using a point-to-point link between the respective attachment routers.
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58.发明申请Default gateway router supplying IP address prefixes ordered for source address selection by host device 有权提供IP地址前缀的默认网关路由器，用于主机设备选择源地址公开(公告)号：US20070030855A1
公开(公告)日：2007-02-08
申请号：US11198190
申请日：2005-08-08
IPC分类号： H04L12/56
CPC分类号： H04L45/02 , H04L12/5692
摘要： A default gateway router of a multi-homed site is configured for supplying, to a host device, a plurality of address prefixes having been advertised by respective exit routers providing respective connecting links for the multi-homed site to a wide area network. The default gateway router sends the address prefixes to the host device in a determined order based on a determined preference in the default gateway router for reaching the respective exit routers. The host device is configured for selecting a source address according to the determined order supplied by the default gateway router. The address also prefixes may be grouped according to identified destination prefixes, enabling the host device to select, for a given identified destination prefix, the source address according to the ordering of address prefixes within the corresponding group.
摘要翻译： 多归属站点的默认网关路由器被配置为向主机设备提供由相应出口路由器通告的多个地址前缀，该多个地址前缀向多个归属站点提供相应的连接链路到广域网。 默认网关路由器基于默认网关路由器中确定的优先级，以确定的顺序将地址前缀发送给主机设备，以达到相应的退出路由器。 主机设备被配置为根据由默认网关路由器提供的确定顺序来选择源地址。 地址也可以根据所标识的目的地前缀进行分组，使得主机设备可以根据给定的目的地前缀，根据相应组内的地址前缀的顺序来选择源地址。
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公开(公告)号：US07058709B2
公开(公告)日：2006-06-06
申请号：US10035724
申请日：2001-11-07
IPC分类号： G06F15/173
CPC分类号： H04L43/10 , H04L41/06 , H04L43/0811 , H04L43/0817 , H04L63/20
摘要： The invention enables the surveillance of computer-like devices while they are connected to a communications network. This latter includes a Network Surveillance Server (NSS). Upon joining said communications network, a device is first required to log-in to NSS. After which, NSS polls it while connected on the network so that an alarm can be issued, from NSS, to a central surveillance unit, if the device fails responding to polling. Hence, prior to leaving the communications network, the computer-like device is also required to log-out to NSS. Thus, as long as it is connected to the communications network, the computer-like device is watched.
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公开(公告)号：US06931452B1
公开(公告)日：2005-08-16
申请号：US09537242
申请日：2000-03-28
IPC分类号： G06F13/00 , H04L12/26 , H04L12/28 , H04L12/701 , H04L12/713 , H04L29/06 , H04L29/08 , H04L29/12
CPC分类号： H04L67/1002 , H04L29/12009 , H04L29/12018 , H04L43/00 , H04L43/0817 , H04L45/00 , H04L45/586 , H04L61/10
摘要： A data transmission system for exchanging packetized data between any IP host selected from a cluster of IP hosts, each host having at least an IP layer, a network layer, and a plurality of workstations coupled by an intermediary of an IP network. The IP hosts are coupled to the IP network via a layer 2 network such as a LAN interfacing the IP network by a set of routers and a network dispatcher that receives all incoming data flow and dispatches the data to the cluster of hosts. The data transmission system comprises at least a monitoring device included in the cluster of hosts where the monitoring device is operable to monitor the availability of candidate routers selected from the set of possible routers. The monitoring device also is operable for broadcasting router availability information to each host in the cluster of hosts via the network dispatcher.
摘要翻译： 一种数据传输系统，用于在从IP主机群集，每个主机至少具有IP层，网络层和由IP网络的中介耦合的多个工作站中选择的任何IP主机之间交换分组数据。 IP主机通过诸如LAN之间的层2网络耦合到IP网络，LAN由一组路由器和一个接收所有传入数据流并将数据分派到主机群的网络调度器。 所述数据传输系统至少包括主机群集中的监视设备，其中所述监控设备可操作以监视从所述一组可能路由器中选择的候选路由器的可用性。 监控设备还可用于经由网络调度器向主机群中的每个主机广播路由器可用性信息。
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