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11. 发明申请

US20100309784A1 Selection of an Edge Node in a Fixed Access Communication Network 有权
标题翻译：选择固定接入通信网络中的边缘节点
公开(公告)号：US20100309784A1
公开(公告)日：2010-12-09
申请号：US12863872
申请日：2008-01-23
申请人： Attila Mihaly , Andras Csaszar , Oktavian Papp , Lars Westberg
发明人： Attila Mihaly , Andras Csaszar , Oktavian Papp , Lars Westberg
IPC分类号： H04L12/26 , H04W8/00 , H04W28/02
CPC分类号： H04L63/0272 , H04L12/5692 , H04L29/12066 , H04L29/12283 , H04L61/1511 , H04L61/2015 , H04L61/2061 , H04L63/08 , H04L67/101 , H04L67/303
摘要： A method and apparatus for selecting an edge node from a plurality of edge nodes in a fixed access communications network. A selection node receives from a host entity a request for a network service. The selection node then obtains, from at least one further network node, data relating to a plurality of edge nodes. On thebasis of the retrieved data, the selection node selects an edge node from the plurality of edge nodes, wherein the selected edge node provides a path between the host entity and the requested network service. The selection node then sends a response to the host entity, the response including information identifying the selected edge node.
摘要翻译：一种用于从固定接入通信网络中的多个边缘节点选择边缘节点的方法和装置。选择节点从主机实体接收对网络服务的请求。选择节点然后从至少一个另外的网络节点获得与多个边缘节点有关的数据。在检索到的数据的基础上，选择节点从多个边缘节点中选择边缘节点，其中所选择的边缘节点在主机实体和所请求的网络服务之间提供路径。选择节点然后向主机实体发送响应，该响应包括标识所选边缘节点的信息。

12. 发明申请

US20070268827A1 Congestion Handling in a Packet Switched Network Domain 有权
标题翻译：分组交换网络中的拥塞处理
公开(公告)号：US20070268827A1
公开(公告)日：2007-11-22
申请号：US11718854
申请日：2004-11-12
申请人： Andras Csaszar , Attila Takacs , Attila Bader , Robert Szabo , Lars Westberg
发明人： Andras Csaszar , Attila Takacs , Attila Bader , Robert Szabo , Lars Westberg
IPC分类号： H04L12/56
CPC分类号： H04L47/115 , H04L43/026 , H04L43/0882 , H04L47/10 , H04L47/11 , H04L47/31 , Y02D50/30
摘要： A system a core (104), an edge node (102, 103) and a method are provided for congestion handling in a packet switched network domain. In case of congestion overload is measured, the data packets in proportion to the overload are marked and the signaled overload is stored. At least one egress node (103) receives marked and not marked packets, decodes and counts the overload from the marked packets in a counting interval. Congestion report messages are sent to ingress nodes (102) where flows are terminated. A core node (104) comprises a storage means (314) taking into account the previously signaled overload, which are already being handled in a congestion handling control loop. An edge node (103) comprises means for adding new flows to the set of affected flows, means for identifying affected flows to be terminated so that the number of identified affected flows should generate together traffic equal to the overload, and means for removing flows to be terminated from set of affected flows. In an advantageous embodiment the market module (315) applies a hysteresis algorithm with a higher bound used to detect congestion and to trigger the marking of user data packets in proportion to the measured overload, and a lower bound used as the reference to measure the overload ratio.
摘要翻译：提供了一种核心（104），边缘节点（102,103）和方法，用于分组交换网络域中的拥塞处理。在测量拥塞过载的情况下，标记与过载成比例的数据包，并存储信号过载。至少一个出口节点（103）接收标记和未标记的分组，在计数间隔中对标记的分组进行解码和计数过载。拥塞报告消息被发送到流停止的入口节点（102）。核心节点（104）包括存储装置（314），其考虑了已经在拥塞控制控制环路中处理的先前发信号的过载。边缘节点（103）包括用于将新的流添加到受影响的流集合的装置，用于识别待终止的受影响的流的装置，使得所识别的受影响的流的数量应该一起生成等于过载的流量，以及用于去除流到由一组受影响的流量终止。在有利的实施例中，市场模块（315）应用具有用于检测拥塞的较高边界的滞后算法，并且与所测量的过载成比例地触发用户数据分组的标记，并且将下限用作测量过载的参考比。

13. 发明授权

US08804501B2 Link failure recovery method and apparatus 有权
标题翻译：链路故障恢复方法和设备
公开(公告)号：US08804501B2
公开(公告)日：2014-08-12
申请号：US12669442
申请日：2007-07-16
申请人： Andras Csaszar , Gabor Enyedi
发明人： Andras Csaszar , Gabor Enyedi
IPC分类号： H04L12/26 , H04L12/56 , H04L12/24 , H04L12/70
CPC分类号： H04L41/0654 , H04L41/0681 , H04L45/00 , H04L45/18 , H04L45/22 , H04L45/28 , H04L47/12 , H04L2012/5627
摘要： A method of routing packets across a packet switched network domain, comprising a multiplicity of nodes. Each node comprises an ingress interface and an egress interface. For each destination node a default and a detour branching are defined, each specifying a route to the destination node. For each two-edge connected node the default and detour branchings do not share a common ingress interface. Each node operates as an intermediate node receiving a packet at an ingress interface, identifying an egress interface based upon the ingress interface upon which the packet is received and the packet destination, forwarding the packet via that egress interface if the connected link is available and, if the connected link is not available, forwarding the packet via an alternative egress interface associated with said detour branching if the packet was received at an ingress interface associated with said default branching or dropping the packet if the packet was received at an ingress interface associated with said detour branching.
摘要翻译：一种在分组交换网络域上路由分组的方法，包括多个节点。每个节点包括入口接口和出口接口。对于每个目的地节点，定义默认和绕行分支，每个分配指定到目的地节点的路由。对于每个两边连接的节点，默认和绕行分支不共享公共入口接口。每个节点作为在入口接口处接收分组的中间节点操作，基于接收到分组的入口接口和分组目的地识别出口接口，如果连接的链路可用，则经由该出口接口转发分组，如果连接的链路不可用，则如果在与所述默认分支相关联的入口接口处接收到分组或者如果分组在与所述路由接口相关联的入口接口处被接收到，则丢弃分组，则经由与所述迂回分支相关联的替代出口接口转发分组说绕道分支。

14. 发明申请

US20110044171A1 CONGESTION HANDLING IN MULTICAST NETWORKS 有权
标题翻译：多媒体网络中的约束处理
公开(公告)号：US20110044171A1
公开(公告)日：2011-02-24
申请号：US12989705
申请日：2008-04-25
申请人： Andras Csaszar , Attila Bader , Csaba Antal
发明人： Andras Csaszar , Attila Bader , Csaba Antal
IPC分类号： H04L12/26 , H04L12/56
CPC分类号： H04L47/10 , H04L12/18 , H04L47/12 , H04L47/15 , H04L47/31
摘要： The invention relates to techniques for traffic handling in congestion situations in a point-to-multipoint (‘PTM’) enabled network. A method embodiment of the inventive technique is performed in an egress node of the network and comprises the steps of detecting marked packets, the marking being indicative of a congestion situation in a core node of the PTM-enabled network; selecting, based on the detected markings, a particular PTM flow from one or more PTM flows passing the egress node for termination; and indicating the selected PTM flow in an upstream direction of the selected flow.
摘要翻译：本发明涉及在点对多点（“PTM”）使能网络中的拥塞情况下的业务处理技术。在网络的出口节点中执行本发明技术的方法实施例，并且包括以下步骤：检测标记分组，该标记指示PTM使能网络的核心节点中的拥塞情况; 基于检测到的标记，从经过出口节点的一个或多个PTM流中选择特定的PTM流来终止; 并指示所选择的流的上游方向上的所选PTM流。

15. 发明申请

US20100188986A1 Network Node and Method for Fast Traffic Measurement and Monitoring 审中-公开
标题翻译：用于快速流量测量和监测的网络节点和方法
公开(公告)号：US20100188986A1
公开(公告)日：2010-07-29
申请号：US12305803
申请日：2006-11-29
申请人： Andras Csaszar , Attila Bader
发明人： Andras Csaszar , Attila Bader
IPC分类号： H04L12/26
CPC分类号： H04L41/142 , H04L43/00 , H04L43/045 , H04L43/0829 , H04L43/0852 , H04L43/087 , H04L43/0882 , H04L43/0894 , H04L43/16
摘要： A network node (e.g., edge node, muter, network management node) is described herein that implements a method for providing fast and exact traffic information during normal traffic fluctuations in a network and also during a sudden and big change in the traffic conditions of the network. In one embodiment, the method monitors a parameter of traffic flowing within a network by: (1) measuring a traffic parameter (mi); and (2) determining whether a value of the measured parameter (mi) is significantly different than a value of an average of previously measured parameters (avgi-1); (2a) if yes, then quickly adapting a value of an updated average of measured parameters (avgi) to be closer to the value of the measured parameter (mi); and (2b) if no, then slowly adapting the value of the updated average of measured parameters (avgi) to be closer to the value of the measured parameter (mi).
摘要翻译：本文描述了网络节点（例如，边缘节点，变阻器，网络管理节点），其实现在网络中的正常业务波动期间以及在网络中的交通状况的突然和大的改变期间提供快速和准确的交通信息的方法网络。在一个实施例中，该方法通过以下步骤监视在网络内流动的业务的参数：（1）测量业务参数（mi）; 和（2）确定测量参数的值（mi）是否显着不同于先前测量参数的平均值（avgi-1）; （2a）如果是，则快速地将测量参数（avgi）的更新平均值的值更接近于测量参数的值（mi）; 和（2b）如果否，则缓慢调整更新的测量参数平均值（avgi）的值更接近测量参数的值（mi）。

16. 发明申请

US20100182907A1 Congestion Control in Stateless Domains 有权
标题翻译：无状态域中的拥塞控制
公开(公告)号：US20100182907A1
公开(公告)日：2010-07-22
申请号：US12514016
申请日：2006-11-09
申请人： Ferenc Pinter , Attila Bader , Andras Csaszar , Attila Takacs
发明人： Ferenc Pinter , Attila Bader , Andras Csaszar , Attila Takacs
IPC分类号： H04L12/56
CPC分类号： H04L47/26 , H04L47/18 , H04L47/70
摘要： Reducing congestion in an IP domain wherein congested data flows arriving at an egress edge node of the network are identified. Total congestion represented by the congested flows is determined, and a congestion extent notification is sent from the egress edge node to its ingress edge node peer. The congestion extent notification includes information regarding the total congestion and is sent on a per-class basis. Congested core routers in the network insert DSCPs into data packets passing through them to enable the egress edge nodes to identify the affected flows. The core routers may also send congestion metric messages, designed to follow the same path as the marked packets, to inform the egress edge nodes of the extent of congestion. In an alternative method, the egress edge nodes inform their ingress peers that congestion is present, without initially identifying the extent. The ingress edge node sends a query downstream with a congestion metric.
摘要翻译：识别其中拥塞数据流到达网络的出口边缘节点的IP域中的拥塞。确定拥塞流表示的总拥塞，并且从出口边缘节点向其入口边缘节点对等体发送拥塞范围通知。拥堵范围通知包括关于总拥塞的信息，并且以每个等级的形式发送。网络中的拥塞核心路由器将DSCP插入到通过它们的数据包中，以使出口边缘节点能够识别受影响的流。核心路由器还可以发送设计为遵循与标记分组相同的路径的拥塞度量消息，以向出口边缘节点通知拥塞程度。在另一种方法中，出口边缘节点通知他们的入口对等体，拥塞是存在的，而没有初始地识别该范围。入口边缘节点向下游发送具有拥塞度量的查询。

17. 发明授权

US07849215B2 Updating state in edge routers 有权
标题翻译：边缘路由器更新状态
公开(公告)号：US07849215B2
公开(公告)日：2010-12-07
申请号：US12295219
申请日：2006-03-31
申请人： Andras Csaszar , Attila Takacs , Attila Bader
发明人： Andras Csaszar , Attila Takacs , Attila Bader
IPC分类号： G06F15/173
CPC分类号： H04L47/724 , H04L45/02 , H04L45/04 , H04L45/22 , H04L47/70 , H04L47/746 , H04L47/783
摘要： Methods, edge routers and an edge-router-refresh network signalling message used to update state information in edge routers. A data session is established on a path from a source towards a destination connected from the source via a plurality of Autonomous Systems (AS). The edge-router-refresh network signalling message is created by an edge router acting an an ingress edge router. The edge-router-refresh network signalling message comprises an identifier of the data session, an identifier of the edge router, which issued the edge-router-refresh message and an indication that the edge-router-refresh message is meant to be used by the edge routers present on the modified path. Optionally, the edge-router-refresh network signalling message further comprises a list of the plurality of AS traversed by the path before the modification.
摘要翻译：方法，边缘路由器和边缘路由器刷新网络信令消息，用于更新边缘路由器中的状态信息。在从源经由多个自治系统（AS）从源连接的目的地的路径上建立数据会话。边缘路由器刷新网络信令消息由作为入口边缘路由器的边缘路由器创建。边缘路由器刷新网络信令消息包括数据会话的标识符，发出边缘路由器刷新消息的边缘路由器的标识符，以及边缘路由器刷新消息将被使用的指示边缘路由器存在于修改的路径上。可选地，边缘路由器刷新网络信令消息还包括由修改之前的路径遍历的多个AS的列表。

18. 发明申请

US20100250930A1 METHOD AND APPARATUS FOR PROTECTING THE ROUTING OF DATA PACKETS 有权
标题翻译：保护数据包路由的方法和装置
公开(公告)号：US20100250930A1
公开(公告)日：2010-09-30
申请号：US12599472
申请日：2008-05-09
申请人： Andras Csaszar , Lars Westberg , Mats Naslund
发明人： Andras Csaszar , Lars Westberg , Mats Naslund
IPC分类号： H04L9/32
CPC分类号： H04L45/00 , H04L29/12066 , H04L61/1511 , H04L63/0428 , H04L63/08 , H04L69/22
摘要： A method and apparatus for protecting the routing of data packets in a packet data network. When a first end-host sends an address query to a DNS server system regarding a second end-host, the DNS server system responds by providing a destination parameter containing an encrypted destination address associated with the second end-host. Thereby, the first end-host is able to get across data packets to the second end-host by attaching the destination parameter to each transmitted data packet. A router in the packet data network admits a received packet if a destination parameter is attached to the pocket including a valid destination address encrypted by a key dependent on a distributed master encryption key. Otherwise, the router discards the packet if no such valid destination address can be derived from the packet by applying decryption to the destination parameter.
摘要翻译：一种用于保护分组数据网络中的数据分组的路由的方法和装置。当第一终端主机向DNS服务器系统发送关于第二终端主机的地址查询时，DNS服务器系统通过提供包含与第二终端主机相关联的加密目的地地址的目的地参数进行响应。因此，通过将目的参数附加到每个发送的数据分组，第一终端主机能够跨数据分组到达第二终端主机。分组数据网络中的路由器如果目的地参数附加到口袋，则允许接收到的分组包括由依赖于分布式主加密密钥的密钥加密的有效目的地地址。否则，如果通过向目的参数应用解密，则不能从分组导出这样有效的目的地址，则路由器丢弃该分组。

19. 发明申请

US20100034090A1 Edge Node for a network domain 有权
标题翻译：边缘节点用于网络域
公开(公告)号：US20100034090A1
公开(公告)日：2010-02-11
申请号：US12514046
申请日：2006-11-10
申请人： Attila Bader , Attila Takacs , Andras Csaszar
发明人： Attila Bader , Attila Takacs , Andras Csaszar
IPC分类号： H04L12/56
CPC分类号： H04L47/12 , H04L47/10 , H04L47/11 , H04L47/26 , H04L47/31 , H04W36/00
摘要： An egress node is proposed for a network domain that comprises at least one ingress node for receiving and routing data units belonging to a plurality of flows into said network domain, a plurality of interior routers for routing said data units through said network domain, and said egress node(s). One or more of the interior routers is arranged to detect whether it is subject to a congestion condition and to congestion mark routed data units if it is subject to said congestion condition. The egress node comprises a control element arranged for performing a congestion handling function that comprises a part for detecting the presence of congestion marked data units arriving at said edge node, and a part for reacting to the detection of the presence of congestion marked data units by invoking a congestion control process. The congestion control comprises sending to said ingress node an instruction for terminating one or more flows to thereby reduce a traffic load, waiting a predetermined period of time and then determining whether congestion marked data units are still arriving at said edge node, and if congestion marked data units are still arriving, repeating the sending and waiting steps.
摘要翻译：提出了一种用于网络域的出口节点，其包括至少一个入口节点，用于接收和路由属于多个流的数据单元到所述网络域中，多个内部路由器用于通过所述网络域路由所述数据单元，并且所述多个内部路由器出口节点。内部路由器中的一个或多个被布置成检测它是否遭受拥塞状况，并且如果它遭受所述拥塞状况则阻塞路由数据单元。出口节点包括一个控制元件，用于执行拥塞处理功能，该功能包括用于检测到达所述边缘节点的拥塞标记数据单元的存在的部分，以及响应于通过以下方式检测拥塞标记数据单元的部分：调用拥塞控制过程。拥塞控制包括向所述入口节点发送用于终止一个或多个流的指令，从而减少业务负载，等待预定时间段，然后确定拥塞标记数据单元是否仍然到达所述边缘节点，并且如果拥塞标记数据单元仍然到达，重复发送和等待步骤。

20. 发明申请

US20090049194A1 Updating state in edge routers 有权
标题翻译：边缘路由器更新状态
公开(公告)号：US20090049194A1
公开(公告)日：2009-02-19
申请号：US12295219
申请日：2006-03-31
申请人： Andras Csaszar , Attila Takacs , Attila Bader
发明人： Andras Csaszar , Attila Takacs , Attila Bader
IPC分类号： G06F15/173
CPC分类号： H04L47/724 , H04L45/02 , H04L45/04 , H04L45/22 , H04L47/70 , H04L47/746 , H04L47/783
摘要： Methods, edge routers and an edge-router-refresh network signalling message used to update state information in edge routers. A data session is established on a path from a source towards a destination connected from the source via a plurality of Autonomous Systems (AS). The edge-router-refresh network signalling message is created by an edge router acting an ingress edge router. The edge-router-refresh network signalling message comprises an identifier of the data session, an identifier of the edge router, which issued the edge-router-refresh message and an indication that the edge-router-refresh message is meant to be used by the edge routers present on the modified path. Optionally, the edge-router-refresh network signalling message further comprises a list of the plurality of AS traversed by the path before the modification.
摘要翻译：方法，边缘路由器和边缘路由器刷新网络信令消息用于更新边缘路由器中的状态信息。在从源经由多个自治系统（AS）从源连接的目的地的路径上建立数据会话。边缘路由器刷新网络信令消息由作为入口边缘路由器的边缘路由器创建。边缘路由器刷新网络信令消息包括数据会话的标识符，发出边缘路由器刷新消息的边缘路由器的标识符，以及边缘路由器刷新消息将被使用的指示边缘路由器存在于修改的路径上。可选地，边缘路由器刷新网络信令消息还包括由修改之前的路径遍历的多个AS的列表。

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