公开(公告)号：US09363168B2

公开(公告)日：2016-06-07

申请号：US14007779

申请日：2012-02-15

申请人： Gabor Sandor Enyedi ,  András Császár

发明人： Gabor Sandor Enyedi ,  András Császár

IPC分类号： H04L12/703 ,  H04L12/707 ,  H04L12/761

CPC分类号： H04L45/28 ,  H04L45/16 ,  H04L45/22 ,  H04L45/24

摘要： A technique of operating a network node of a multicast communication network comprising a plurality of network nodes which are interconnected with each other by communication links is provided, wherein the network node is associate with a common source network node. A method implementation of the technique comprises: determining a first path which connects the network node to the common source network node along a primary network tree, and determining a second path which connects the network node to the common source network node along a secondary network tree, wherein the first path and the second path show redundancy with respect to each other; receiving, at the network node, multicast data from the common source network node via the first path; triggering, by the network node, reception of multicast data from the common source network node via the second path if the network node detects a failure of the first path (e.g., determines that no multicast data is received via the first path).

摘要翻译： 提供了一种操作包括通过通信链路彼此互连的多个网络节点的组播通信网络的网络节点的技术，其中所述网络节点与公共源网络节点相关联。 该技术的方法实现包括：确定沿着主网络树将网络节点连接到公共源网络节点的第一路径，以及确定沿着辅助网络树将网络节点连接到公共源网络节点的第二路径 ，其中所述第一路径和所述第二路径显示相对于彼此的冗余; 在所述网络节点处经由所述第一路径从所述公共源网络节点接收多播数据; 如果网络节点检测到第一路径的故障（例如，确定没有通过第一路径接收到多播数据），则通过网络节点触发从公共源网络节点经由第二路径接收多播数据。

公开(公告)号：US20140016457A1

公开(公告)日：2014-01-16

申请号：US14007779

申请日：2012-02-15

申请人： Gabor Sandor Enyedi ,  András Császár

发明人： Gabor Sandor Enyedi ,  András Császár

IPC分类号： H04L12/703

CPC分类号： H04L45/28 ,  H04L45/16 ,  H04L45/22 ,  H04L45/24

摘要： A technique of operating a network node of a multicast communication network comprising a plurality of network nodes which are interconnected with each other by communication links is provided, wherein the network node is associate with a common source network node. A method implementation of the technique comprises: determining a first path which connects the network node to the common source network node along a primary network tree, and determining a second path which connects the network node to the common source network node along a secondary network tree, wherein the first path and the second path show redundancy with respect to each other; receiving, at the network node, multicast data from the common source network node via the first path; triggering, by the network node, reception of multicast data from the common source network node via the second path if the network node detects a failure of the first path (e.g., determines that no multicast data is received via the first path).

摘要翻译： 提供了一种操作包括通过通信链路彼此互连的多个网络节点的组播通信网络的网络节点的技术，其中所述网络节点与公共源网络节点相关联。 该技术的方法实现包括：确定沿着主网络树将网络节点连接到公共源网络节点的第一路径，以及确定沿着辅助网络树将网络节点连接到公共源网络节点的第二路径 ，其中所述第一路径和所述第二路径显示相对于彼此的冗余; 在所述网络节点处经由所述第一路径从所述公共源网络节点接收多播数据; 如果网络节点检测到第一路径的故障（例如，确定没有通过第一路径接收到多播数据），则通过网络节点触发从公共源网络节点经由第二路径接收多播数据。

公开(公告)号：US09264322B2

公开(公告)日：2016-02-16

申请号：US13811716

申请日：2010-10-07

申请人： András Császár ,  Gabor Sandor Enyedi ,  Sriganesh Kini

发明人： András Császár ,  Gabor Sandor Enyedi ,  Sriganesh Kini

IPC分类号： G06F15/16 ,  H04L12/26 ,  H04L12/751 ,  H04L12/759 ,  H04L12/707 ,  H04L12/703

CPC分类号： H04L43/04 ,  H04L43/0817 ,  H04L45/025 ,  H04L45/028 ,  H04L45/22 ,  H04L45/28

摘要： There is provided a method for use by a router in a communications network. Forwarding information is maintained (S1) which specifies the next hop node for each of a plurality of possible destination nodes. Update information is maintained (S1) which specifies how, if at all, the next hop nodes specified in the forwarding information are to be updated for a plurality of possible network resource failures. Known failure information is maintained (S1) which relates to a known network resource failure or which specifies that there is no known network resource failure. A failure notification is received (S2) relating to a network resource failure. In response to receipt of the failure notification, it is determined (S3) from the failure notification how, if at all, the known failure information is to be updated, and the known failure information is updated, if required, based on the determination (S4). A communications packet is received (S5). Various steps (S6 to S10) are carried out in response to receipt of the communications packet. The destination node for the received packet is determined (S6). It is determined (S7) whether the next hop node specified by the forwarding information for the determined destination node is potentially invalid in view of the known failure information. If so, then the next hop node for the determined destination node is updated if necessary in the forwarding information using the update information and the known failure information (S8). The next hop node is determined for the received packet using the forwarding information and the determined destination node (S9). The received packet is forwarded towards the determined next hop node (S10).

摘要翻译： 提供了一种在通信网络中由路由器使用的方法。 保持转发信息（S1），其指定多个可能目的地节点中的每一个的下一跳节点。 维护更新信息（S1），其指定如何在多个可能的网络资源故障中如何更新在转发信息中指定的下一跳节点。 保持已知的故障信息（S1），其涉及已知的网络资源故障或指定没有已知的网络资源故障。 接收到与网络资源故障有关的故障通知（S2）。 响应于故障通知的接收，根据故障通知确定（S3）如果根本确定（如果有的话）知道的故障信息将被更新，并且如果需要，更新已知的故障信息， S4）。 接收通信分组（S5）。 响应于通信分组的接收，执行各种步骤（S6至S10）。 确定接收到的分组的目的地节点（S6）。 鉴于已知的故障信息，确定（S7）由所确定的目的地节点的转发信息指定的下一跳节点是否可能是无效的。 如果是，则如果需要，则使用更新信息和已知故障信息，在转发信息中更新所确定的目的地节点的下一跳节点（S8）。 使用转发信息和所确定的目的地节点为接收的分组确定下一跳节点（S9）。 接收到的分组被转发到确定的下一跳节点（S10）。

公开(公告)号：US20130232259A1

公开(公告)日：2013-09-05

申请号：US13811716

申请日：2010-10-07

申请人： András Császár ,  Gabor Sandor Enyedi ,  Sriganesh Kini

发明人： András Császár ,  Gabor Sandor Enyedi ,  Sriganesh Kini

IPC分类号： H04L12/26

CPC分类号： H04L43/04 ,  H04L43/0817 ,  H04L45/025 ,  H04L45/028 ,  H04L45/22 ,  H04L45/28

摘要： There is provided a method for use by a router in a communications network. Forwarding information is maintained (S1) which specifies the next hop node for each of a plurality of possible destination nodes. Update information is maintained (S1) which specifies how, if at all, the next hop nodes specified in the forwarding information are to be updated for a plurality of possible network resource failures. Known failure information is maintained (S1) which relates to a known network resource failure or which specifies that there is no known network resource failure. A failure notification is received (S2) relating to a network resource failure. In response to receipt of the failure notification, it is determined (S3) from the failure notification how, if at all, the known failure information is to be updated, and the known failure information is updated, if required, based on the determination (S4). A communications packet is received (S5). Various steps (S6 to S10) are carried out in response to receipt of the communications packet. The destination node for the received packet is determined (S6). It is determined (S7) whether the next hop node specified by the forwarding information for the determined destination node is potentially invalid in view of the known failure information. If so, then the next hop node for the determined destination node is updated if necessary in the forwarding information using the update information and the known failure information (S8). The next hop node is determined for the received packet using the forwarding information and the determined destination node (S9). The received packet is forwarded towards the determined next hop node (S10).

摘要翻译： 提供了一种在通信网络中由路由器使用的方法。 保持转发信息（S1），其指定多个可能目的地节点中的每一个的下一跳节点。 维护更新信息（S1），其指定如何在多个可能的网络资源故障中如何更新在转发信息中指定的下一跳节点。 保持已知的故障信息（S1），其涉及已知的网络资源故障或指定没有已知的网络资源故障。 接收到与网络资源故障有关的故障通知（S2）。 响应于故障通知的接收，根据故障通知确定（S3）如果根本确定（如果有的话）知道的故障信息将被更新，并且如果需要，更新已知的故障信息， S4）。 接收通信分组（S5）。 响应于通信分组的接收，执行各种步骤（S6至S10）。 确定接收到的分组的目的地节点（S6）。 鉴于已知的故障信息，确定（S7）由所确定的目的地节点的转发信息指定的下一跳节点是否可能是无效的。 如果是，则如果需要，则使用更新信息和已知故障信息，在转发信息中更新所确定的目的地节点的下一跳节点（S8）。 使用转发信息和所确定的目的地节点为接收的分组确定下一跳节点（S9）。 接收到的分组被转发到确定的下一跳节点（S10）。

公开(公告)号：US20130089094A1

公开(公告)日：2013-04-11

申请号：US13703678

申请日：2010-07-01

申请人： András Császár ,  Gabor Sandor Enyedi ,  Sriganesh Kini

发明人： András Császár ,  Gabor Sandor Enyedi ,  Sriganesh Kini

IPC分类号： H04L12/56

CPC分类号： H04L45/566 ,  H04L45/00 ,  H04L45/023 ,  H04L45/60

摘要： There is provided a method for use by a first processing unit in or to be installed in a router. The first processing unit is configured or responsible for routing (or forwarding) packets to and from other routers. There may be other such first processing units in or installed in the router. In a first step (S1), information is received at the first processing unit which requires dissemination to other routers. The information also requires processing to determine what, if any, reconfiguration of the routing (forwarding) performed by the first processing unit is required. In a second step (S2b) the information is forwarded in a packet to other routers as required according to the routing (forwarding) configuration for the first processing unit. In a third step (S2c) the information is forwarded to at least one other first processing unit in the router (if there are any other first processing units in the router) not already in receipt of the information. If an expedited dissemination procedure is required, the second and third steps (S2b, S2c) are performed before the processing (to determine what if any reconfiguration is required) has been performed (completed) and/or before the first processing unit has been informed of the result of such processing and/or before any reconfiguration required in the first processing unit has been requested, arranged or performed (completed).

摘要翻译： 提供了一种由路由器中的第一处理单元使用或安装在路由器中的方法。 第一个处理单元被配置或负责将数据包路由（或转发）到其他路由器或从其他路由器转发数据包。 路由器中可能还有其他这样的第一处理单元或安装在路由器中。 在第一步（S1）中，在需要向其他路由器传播的第一处理单元处接收信息。 该信息还需要处理以确定需要由第一处理单元执行的路由（转发）的重新配置（如果有的话）。 在第二步骤（S2b）中，根据第一处理单元的路由（转发）配置，根据需要将信息在分组中转发到其他路由器。 在第三步骤（S2c）中，信息被转发到路由器中的至少另一个第一处理单元（如果路由器中还有其他第一处理单元）尚未接收到该信息。 如果需要快速传播程序，则在执行（完成）和/或在第一处理单元被通知之前的处理（以确定是否需要重新配置）之前执行第二和第三步骤（S2b，S2c） 这种处理的结果和/或在第一处理单元中所需的任何重新配置​​之前已被请求，排列或执行（完成）。

公开(公告)号：US20150156102A1

公开(公告)日：2015-06-04

申请号：US14411547

申请日：2012-06-29

申请人： Geza Szabo ,  Wesley Davison Braga Melo ,  Gabor Sandor Enyedi ,  Stenio Fernandes ,  Gergely Pongrácz ,  Djamel Sadok

发明人： Geza Szabo ,  Wesley Davison Braga Melo ,  Gabor Sandor Enyedi ,  Stenio Fernandes ,  Gergely Pongrácz ,  Djamel Sadok

IPC分类号： H04L12/26

CPC分类号： H04L43/50 ,  H04L47/2483 ,  H04L63/1408

摘要： Computer controlled method, network server (42, 43, 44, 46, 48) and system (40) for detecting data patterns in a data stream (36) received by a computer (30). The data stream (36) comprising a plurality of data symbols. The computer (30) executes a finite automata (10) comprising a plurality of states (11, 12, 13, 14, 15) including a start state (11) and at least one accepting state (15). State transitions (16) are triggered by a data symbol (17a) according to a state transition register (17) and the method comprises the steps of determining (21), by the computer (30), from a data symbol register (18) whether a data symbol of the data stream (36) is comprised in a group of data symbols not resulting in an accepting state (15), and triggering (22), by the computer (30), a transition (16) to the start state (11) for data symbols comprised in the group and a transition (23) to a state (12, 13, 14, 15) according to the state transition register (17) for detecting the data pattern otherwise.

摘要翻译： 计算机控制方法，用于检测由计算机（30）接收的数据流（36）中的数据模式的网络服务器（42,43,44,46,48）和系统（40）。 数据流（36）包括多个数据符号。 计算机（30）执行包括包括开始状态（11）和至少一个接受状态（15）的多个状态（11,12,13,14,15）的有限自动机（10）。 状态转换（16）根据状态转移寄存器（17）由数据符号（17a）触发，并且该方法包括以下步骤：由计算机（30）从数据符号寄存器（18）确定（21） 数据流（36）的数据符号是否包含在不导致接受状态（15）的数据符号组中，并且由计算机（30）触发（22）到开始的转换（16） 状态（11），根据用于检测数据模式的状态转移寄存器（17）的转换（23）到状态（12,13,14,15）。

公开(公告)号：US09825841B2

公开(公告)日：2017-11-21

申请号：US14411547

申请日：2012-06-29

申请人： Geza Szabo ,  Wesley Davison Braga Melo ,  Gabor Sandor Enyedi ,  Stenio Fernandes ,  Gergely Pongrácz ,  Djamel Sadok

发明人： Geza Szabo ,  Wesley Davison Braga Melo ,  Gabor Sandor Enyedi ,  Stenio Fernandes ,  Gergely Pongrácz ,  Djamel Sadok

IPC分类号： G06F15/16 ,  H04L12/26 ,  H04L12/851 ,  H04L29/06

CPC分类号： H04L43/50 ,  H04L47/2483 ,  H04L63/1408

摘要： Computer controlled method, network server (42, 43, 44, 46, 48) and system (40) for detecting data patterns in a data stream (36) received by a computer (30). The data stream (36) comprising a plurality of data symbols. The computer (30) executes a finite automata (10) comprising a plurality of states (11, 12, 13, 14, 15) including a start state (11) and at least one accepting state (15). State transitions (16) are triggered by a data symbol (17a) according to a state transition register (17) and the method comprises the steps of determining (21), by the computer (30), from a data symbol register (18) whether a data symbol of the data stream (36) is comprised in a group of data symbols not resulting in an accepting state (15), and triggering (22), by the computer (30), a transition (16) to the start state (11) for data symbols comprised in the group and a transition (23) to a state (12, 13, 14, 15) according to the state transition register (17) for detecting the data pattern otherwise.