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1. 发明申请

US20120106322A1 TECHNIQUE ESTABLISHING A FORWARDING PATH IN A NETWORK SYSTEM 有权
标题翻译：技术建立网络系统中的前进路径
公开(公告)号：US20120106322A1
公开(公告)日：2012-05-03
申请号：US13181020
申请日：2011-07-12
申请人： Balázs Peter Gero , János Farkas , Panagiotis Saltsidis , Zhemin Ding
发明人： Balázs Peter Gero , János Farkas , Panagiotis Saltsidis , Zhemin Ding
IPC分类号： H04L12/26
CPC分类号： H04L45/28 , H04L12/437 , H04L45/04 , H04L45/22 , H04L45/24 , H04L45/58
摘要： A method and network for determining an interconnect node for establishing a forwarding path for service based data within a network system. The method includes assigning, interconnect node status information to network interconnect nodes, wherein a network interconnect node to which a passive status is assigned is only allowed to transmit service based data between an external link and another interconnect node of the network, or between two other interconnect nodes of the network. Only a network interconnect node with active status is allowed to send or receive service based data to or from the network. The method includes determining, for a given service, an interconnect node with active status for establishment of a forwarding path including the interconnect node with active status and an external link, wherein the determination is based on the respective status information assigned to the network interconnect nodes for the service.
摘要翻译：一种用于确定互连节点的方法和网络，用于在网络系统内建立用于基于服务的数据的转发路径。该方法包括将节点状态信息分配给网络互连节点，其中分配了被动状态的网络互连节点仅被允许在网络的外部链路和另一互连节点之间或另外两个之间传输基于服务的数据网络的互连节点。仅允许具有活动状态的网络互连节点向网络发送或接收基于服务的数据。该方法包括为给定服务确定具有活动状态的互连节点，用于建立包括具有活动状态的互连节点和外部链路的转发路径，其中所述确定基于分配给网络互连节点的相应状态信息为服务。

2. 发明授权

US08817594B2 Technique establishing a forwarding path in a network system 有权
标题翻译：在网络系统中建立转发路径的技术
公开(公告)号：US08817594B2
公开(公告)日：2014-08-26
申请号：US13181020
申请日：2011-07-12
申请人： Balázs Peter Gero , János Farkas , Panagiotis Saltsidis , Zhemin Ding
发明人： Balázs Peter Gero , János Farkas , Panagiotis Saltsidis , Zhemin Ding
IPC分类号： H04L1/00 , H04L12/28 , H04L12/56 , H04L12/437
CPC分类号： H04L45/28 , H04L12/437 , H04L45/04 , H04L45/22 , H04L45/24 , H04L45/58
摘要： A method and network for determining an interconnect node for establishing a forwarding path for service based data within a network system. The method includes assigning, interconnect node status information to network interconnect nodes, wherein a network interconnect node to which a passive status is assigned is only allowed to transmit service based data between an external link and another interconnect node of the network, or between two other interconnect nodes of the network. Only a network interconnect node with active status is allowed to send or receive service based data to or from the network. The method includes determining, for a given service, an interconnect node with active status for establishment of a forwarding path including the interconnect node with active status and an external link, wherein the determination is based on the respective status information assigned to the network interconnect nodes for the service.
摘要翻译：一种用于确定互连节点的方法和网络，用于在网络系统内建立用于基于服务的数据的转发路径。该方法包括将节点状态信息分配给网络互连节点，其中分配了被动状态的网络互连节点仅被允许在网络的外部链路和另一互连节点之间或另外两个之间传输基于服务的数据网络的互连节点。仅允许具有活动状态的网络互连节点向网络发送或接收基于服务的数据。该方法包括为给定服务确定具有活动状态的互连节点，用于建立包括具有活动状态的互连节点和外部链路的转发路径，其中所述确定基于分配给网络互连节点的相应状态信息为服务。

3. 发明授权

US09240928B2 Data plane for resilient network interconnect 有权
标题翻译：用于弹性网络互连的数据平面
公开(公告)号：US09240928B2
公开(公告)日：2016-01-19
申请号：US13146279
申请日：2011-06-20
申请人： Balázs Peter Gerö , János Farkas , Panagiotis Saltsidis , Zhemin Ding
发明人： Balázs Peter Gerö , János Farkas , Panagiotis Saltsidis , Zhemin Ding
IPC分类号： G06F15/16 , H04L12/24 , H04L12/46 , H04L12/715 , H04L12/725
CPC分类号： H04L41/12 , H04L12/4625 , H04L12/4633 , H04L12/4641 , H04L45/04 , H04L45/306 , H04L2212/00
摘要： A network interconnect node of an internal network may communicate with an external network interconnect node of an external network, other internal network interconnect node(s) and internal network node(s). The network interconnect node may receive frames from the external network interconnect node and forward them according to a Virtual Local Area Network (VLAN) tagging forwarding process to other internal network interconnect node(s) or internal network node(s) based on whether the network interconnect node is active for the service associated with the frames. The network interconnect node may receive frames from other internal network interconnect node(s) or from internal network nodes and forward them according to the VLAN tagging forwarding process to other internal network interconnect nodes, internal network nodes or the external network interconnect node based on whether the frames are encapsulated frames and/or whether the network interconnect node is active for the service.
摘要翻译：内部网络的网络互连节点可以与外部网络的外部网络互连节点，其他内部网络互连节点和内部网络节点进行通信。网络互连节点可以从外部网络互连节点接收帧，并根据虚拟局域网（VLAN）标记转发过程将其转发到其他内部网络互连节点或内部网络节点，基于网络互连节点对于与帧相关联的服务是活动的。网络互连节点可以从其他内部网络互连节点或内部网络节点接收帧，并根据VLAN标记转发过程将其转发到其他内部网络互连节点，内部网络节点或外部网络互连节点，基于是否帧是封装帧和/或网络互连节点是否对于该服务是活动的。

4. 发明申请

US20130254327A1 DATA PLANE FOR RESILIENT NETWORK INTERCONNECT 有权
公开(公告)号：US20130254327A1
公开(公告)日：2013-09-26
申请号：US13146279
申请日：2011-06-20
申请人： Balázs Peter Gerö , János Farkas , Panagiotis Saltsidis , Zhemin Ding
发明人： Balázs Peter Gerö , János Farkas , Panagiotis Saltsidis , Zhemin Ding
IPC分类号： H04L12/24
CPC分类号： H04L41/12 , H04L12/4625 , H04L12/4633 , H04L12/4641 , H04L45/04 , H04L45/306 , H04L2212/00
摘要： The present disclosure relates to a technique for forwarding frames received by a network interconnect node (114) of an internal network (112) having the network interconnect node (114), one or more internal network nodes (118, 120) and one or more other internal network interconnect nodes (116), the network interconnect node (114) having a network interconnect interface for communicating with an external network interconnect node (104) of an external network (102) and a network interface for communicating with one or more of the other internal network interconnect nodes (116) and with one or more of the internal network nodes (118, 120), wherein the frames are related to a service provided by at least one of the external network (102) and the internal network (112). A method embodiment comprises at least one of the steps of: receiving, from the external network interconnect node (104), frames at the network interconnect interface and forwarding according to a Virtual Local Area Network (VLAN) tagging forwarding process, by the network interconnect node (114), the frames to one or more of the other internal network interconnect nodes (116) or to one or more of the internal network nodes (118, 120) on a network link via the network interface by considering whether the network interconnect node (114) is active for the service associated with the frames; and receiving, from one or more of the other internal network interconnect nodes (116) or from one or more of the internal network nodes (118, 120), frames at the network interface and forwarding according to a VLAN tagging forwarding process, by the network interconnect node (114), the frames to one or more of the other internal network interconnect nodes (116) or to one or more of the internal network nodes (118, 120) on a network link via the network interface or to the external network interconnect node (104) via the network interconnect interface based on at least one of whether the frames are encapsulated frames and whether the network interconnect node (114) is active for the service.

5. 发明授权

US08837329B2 Method and system for controlled tree management 有权
标题翻译：受控树管理方法和系统
公开(公告)号：US08837329B2
公开(公告)日：2014-09-16
申请号：US12525062
申请日：2008-01-18
申请人： János Farkas , Csaba Antal , Attila Takács , Panagiotis Saltsidis
发明人： János Farkas , Csaba Antal , Attila Takács , Panagiotis Saltsidis
IPC分类号： H04L12/28 , H04L12/705 , H04L12/721 , H04L12/751 , H04L12/703 , H04L12/753 , H04L12/46 , H04L12/24
CPC分类号： H04L12/462 , H04L41/069 , H04L41/0853 , H04L41/0856 , H04L41/12 , H04L45/02 , H04L45/12 , H04L45/18 , H04L45/28 , H04L45/48
摘要： There is disclosed a method and apparatus for facilitating a network, such as an Ethernet LAN, for efficient forwarding of data traffic by collecting neighbor information, generating and distributing link state advertisements, populating a topology database for the network, and calculating trees for each bridge serving as a root bridge. In a preferred embodiment the method and system also prepare one or more backup topologies, and store them for use if they are needed due to a failure condition detected in the network. In a particularly preferred embodiment, probabilities are assigned to various potential failure conditions, and the probability values are used to decide which backup topologies to calculate, store, or use.
摘要翻译：公开了一种方法和装置，用于通过收集邻居信息，生成和分发链路状态通告，填充网络的拓扑数据库以及计算每个网桥的树，从而方便诸如以太网LAN的网络来有效地转发数据流量作为根桥。在优选实施例中，方法和系统还准备一个或多个备用拓扑，并且如果由于在网络中检测到故障状况而需要，则存储它们以供使用。在特别优选的实施例中，将概率分配给各种潜在的故障条件，并且概率值用于决定要计算，存储或使用哪些备份拓扑。

6. 发明申请

US20130246635A1 Technique for Bundling in Link Aggregation 有权
标题翻译：捆绑在链路聚合中的技术
公开(公告)号：US20130246635A1
公开(公告)日：2013-09-19
申请号：US13818883
申请日：2012-06-28
申请人： Balázs Peter Gerö , János Farkas , Shahryar Khan , Panagiotis Saltsidis , Balázs Varga
发明人： Balázs Peter Gerö , János Farkas , Shahryar Khan , Panagiotis Saltsidis , Balázs Varga
IPC分类号： H04L12/24
CPC分类号： H04L41/0654 , H04L41/0663 , H04L45/245 , Y02D50/30
摘要： Methods and apparatus are disclosed for applying multiple Link Aggregation Group (LAG) entities on the same set of physical links, thus making bundling of individual services or conversations possible by the different LAG entities within Link Aggregation. Each LAG entity is configured such that a single physical link is Active and all the other links are Standby. Each LAG entity may be regarded as a “bundle.” Thus the services/conversations are bundled into a LAG entity and are handed-off on the Active link during normal operation. If service hand-off is not possible on the Active link (e.g., due to a failure), then the LAG entity switches over to a Standby link thus the service/conversation is handed-off on that formerly Standby link. Bundling may simplify operations of control and signaling.
摘要翻译：公开了用于在同一组物理链路上应用多个链路聚合组（LAG）实体的方法和装置，从而使链路聚合中的不同LAG实体可以捆绑各个服务或对话。每个LAG实体被配置为使得单个物理链路是活动的，并且所有其他链路是待机。每个LAG实体可以被视为“捆绑”。因此，服务/对话被捆绑成LAG实体，并且在正常操作期间在活动链路上被切换。如果在Active链路上无法进行业务切换（例如，由于故障），则LAG实体切换到备用链路，从而在以前的待机链路上进行业务/对话切换。捆绑可以简化控制和信令的操作。

7. 发明授权

US08467317B2 Method and apparatus for network tree management 有权
标题翻译：网络树管理方法与装置
公开(公告)号：US08467317B2
公开(公告)日：2013-06-18
申请号：US13414927
申请日：2012-03-08
申请人： János Farkas , Csaba Antal , Attila Takács , Panagiotis Saltsidis
发明人： János Farkas , Csaba Antal , Attila Takács , Panagiotis Saltsidis
IPC分类号： H04L12/28 , H04L12/56
CPC分类号： H04L12/462 , H04L45/02 , H04L45/025 , H04L45/04 , H04L45/48
摘要： There is disclosed a manner of managing the active topology, that is the scheme for forwarding data, in a computer network such as an Ethernet local area network. A root bridge is selected from a plurality of bridges in the network; the root bridge calculating at least one spanning tree from a topology database that has been populated by bridge neighbor information gleaned from link state advertising messages. The root bridge may also calculate an alternate topology for implementation in the event a failure condition that affects the primary spanning tree is detected. The root bridge then advertises the spanning tree and remotely configures the port states of the bridges in the spanning tree through tree advertising messages that the bridges are arranged to process and set their ports accordingly.
摘要翻译：公开了在诸如以太网局域网的计算机网络中管理活动拓扑的方式，即用于转发数据的方案。从网络中的多个桥中选择根桥; 根桥从已经从链接状态广告消息收集的桥接邻居信息填充的拓扑数据库中计算至少一个生成树。如果检测到影响主生成树的故障条件，则根桥也可以计算备用拓扑。根桥然后通告生成树，并通过树形广告消息远程配置生成树中的网桥的端口状态，桥梁被布置为相应地处理和设置其端口。

8. 发明申请

US20120170489A1 Method And Apparatus For Network Tree Management 有权
标题翻译：网络树管理方法与装置
公开(公告)号：US20120170489A1
公开(公告)日：2012-07-05
申请号：US13414927
申请日：2012-03-08
申请人： János Farkas , Csaba Antal , Attila Takács , Panagiotis Saltsidis
发明人： János Farkas , Csaba Antal , Attila Takács , Panagiotis Saltsidis
IPC分类号： H04L12/44
CPC分类号： H04L12/462 , H04L45/02 , H04L45/025 , H04L45/04 , H04L45/48
摘要： There is disclosed a manner of managing the active topology, that is the scheme for forwarding data, in a computer network such as an Ethernet local area network. A root bridge is selected from a plurality of bridges in the network; the root bridge calculating at least one spanning tree from a topology database that has been populated by bridge neighbor information gleaned from link state advertising messages. The root bridge may also calculate an alternate topology for implementation in the event a failure condition that affects the primary spanning tree is detected. The root bridge then advertises the spanning tree and remotely configures the port states of the bridges in the spanning tree through tree advertising messages that the bridges are arranged to process and set their ports accordingly.
摘要翻译：公开了在诸如以太网局域网的计算机网络中管理活动拓扑的方式，即用于转发数据的方案。从网络中的多个桥中选择根桥; 根桥从已经从链接状态广告消息收集的桥接邻居信息填充的拓扑数据库中计算至少一个生成树。如果检测到影响主生成树的故障条件，则根桥也可以计算备用拓扑。根桥然后通告生成树，并通过树形广告消息远程配置生成树中的网桥的端口状态，桥梁被布置为相应地处理和设置其端口。

9. 发明授权

US10708132B2 Technique for handling a status change in an interconnect node 有权
公开(公告)号：US10708132B2
公开(公告)日：2020-07-07
申请号：US14369322
申请日：2011-12-29
申请人： Balázs Peter Gerö , János Farkas , László Molnár , Panagiotis Saltsidis , Balázs Varga
发明人： Balázs Peter Gerö , János Farkas , László Molnár , Panagiotis Saltsidis , Balázs Varga
IPC分类号： H04L12/24 , H04L12/751
摘要： A technique for status change handling in an interconnect node is described, wherein the node comprises a data plane that can assume, per service, a passive or active status. A method aspect in the node comprises transmitting, to another node, a first indication that a change has been or is about to be performed, awaiting, from the other node, reception of a second indication that the data plane in the other node has been set to the passive status, and activating, responsive to the received indication, the data plane of the node from the passive status to the active status. The method aspect in the other node further comprises receiving, from the node, the first indication, passivating, responsive to the receiving step, the data plane being in the active status to the passive status, and transmitting, upon completion of the passivating step, the second indication.

10. 发明申请

US20150172121A1 Methods and Apparatus for Detecting and Handling Split Brain Issues in a Link Aggregation Group 有权
标题翻译：检测和处理链路聚合组中分裂大脑问题的方法和装置
公开(公告)号：US20150172121A1
公开(公告)日：2015-06-18
申请号：US14400619
申请日：2012-08-29
申请人： János Farkas , Balázs Peter Gerö , Panagiotis Saltsidis
发明人： János Farkas , Balázs Peter Gerö , Panagiotis Saltsidis
IPC分类号： H04L12/24 , H04L12/26 , H04L12/709
CPC分类号： H04L41/0816 , H04L41/0672 , H04L43/0811 , H04L45/245 , Y02D50/30
摘要： Methods and apparatus for operating a virtual node in a LAG that includes a first virtual node and a second virtual node are disclosed. The first virtual node includes at least a first fellow node and a second fellow node. In one exemplary method, the first fellow node receives, from the second virtual node, first control information comprising a system ID and first configuration information associated with the LAG. The first control information is compared with reference configuration information representing previously established expected configuration information associated with the LAG. Based on that comparison, and at least one additional criterion, a split brain condition may be determined to exist in the LAG. In a complementary fashion, a fellow node of the second virtual node may be configured to alter its transmitted configuration information depending on whether it is able to communicate with its fellow node in the second virtual node.
摘要翻译：公开了在包括第一虚拟节点和第二虚拟节点的LAG中操作虚拟节点的方法和装置。第一虚拟节点至少包括第一节点和第二节点。在一个示例性方法中，第一伙伴节点从第二虚拟节点接收包括与该LAG相关联的系统ID和第一配置信息的第一控制信息。将第一控制信息与表示与LAG相关联的先前建立的预期配置信息的参考配置信息进行比较。基于该比较，以及至少一个附加标准，可以确定在LAG中存在裂脑状况。以互补的方式，第二虚拟节点的节点可以被配置为根据它是否能够与第二虚拟节点中的其他节点通信来改变其发送的配置信息。

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