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。

公开(公告)号：US09077632B2

公开(公告)日：2015-07-07

申请号：US13695699

申请日：2010-05-04

申请人： Zhemin Ding ,  Panagiotis Saltsidis

发明人： Zhemin Ding ,  Panagiotis Saltsidis

IPC分类号： H04L12/26 ,  H04L12/721

CPC分类号： H04L43/10 ,  H04L45/26 ,  H04L45/34

摘要： A source node for addressing target nodes (44, 46) in a communication system (10), the source node configured to be part of an Ethernet domain (20) and the target nodes (44, 46) configured to be part of a Multiple Protocol Label Switching (MPLS) domain (40) that is connected to the Ethernet domain (20) via an interworking node (30). The source node is further configured to: i) generate a message (51) comprising an identifier of the source node, an identifier of the interworking node (30), and an identifier of a certain target node (44) of the target nodes (44, 46), ii) send the message (51) to the certain target node (44) via the interworking node (30), and iii) receive from the certain target node (44) via interworking node (30) a reply (54) to the message (51). An alternate source node, related interworking nodes and methods are also described.

摘要翻译： 用于在通信系统（10）中寻址目标节点（44,46）的源节点，所述源节点被配置为是以太网域（20）的一部分，并且所述目标节点（44,46）被配置为多个 经由互通节点（30）连接到以太网域（20）的协议标签交换（MPLS）域（40）。 源节点还被配置为：i）生成包括源节点的标识符，互通节点（30）的标识符和目标节点的某个目标节点（44）的标识符的消息（51） 44，46），ii）经由互通节点（30）将消息（51）发送到特定目标节点（44），以及iii）经由互通节点（30）从某个目标节点（44） 54）到消息（51）。 还描述了备用源节点，相关互通节点和方法。

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。

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。

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。

公开(公告)号：US08437279B2

公开(公告)日：2013-05-07

申请号：US13233110

申请日：2011-09-15

申请人： Panagiotis Saltsidis

发明人： Panagiotis Saltsidis

IPC分类号： H04L12/28 ,  H04L12/56

CPC分类号： H04L69/18 ,  C04B28/02 ,  C04B40/0039 ,  C04B2103/52 ,  C04B2111/1081 ,  H04L12/4625 ,  H04L12/4633 ,  H04L12/4662 ,  H04L29/06163 ,  H04L49/251 ,  C04B22/00 ,  C04B2103/0086 ,  C04B2103/44 ,  C04B22/124 ,  C04B24/06

摘要： A method and Bridge in a Provider Backbone Bridge Network (PBBN) for enabling frames from a Higher Layer Entity attached alternatively to a Provider Instance Port (PIP) on an I-Component of a Backbone Edge Bridge or to a Customer Backbone Port on a B-Component of the Backbone Edge Bridge, to reach an intended entity in the PBBN. A Virtual Instance Port Service Access Point (VIP SAP) is configured for every VIP and every Higher Layer Entity configured on the I-Component. An Enhanced VIP Port Connectivity function utilizes the VIP SAP to tunnel customer-initiated Layer 2 Control Protocols (L2CPs). A Special Multiplexed SAP handles the frames of the Higher Layer Entity. A Service Instance Multiplex Entity utilizes the Special Multiplexed SAP to transfer frames between the PIP or the Customer Backbone Port and the entity inside the PBBN.

摘要翻译： 提供者骨干桥网络（PBBN）中的方法和桥接器，用于使来自更高层实体的帧可替代地连接到骨干边缘桥的I组件上的提供者实例端口（PIP）或B上的客户骨干端口 - 骨干边缘桥梁的组件，以达到PBBN中的预期实体。 虚拟实例端口服务接入点（VIP SAP）被配置为在I组件上配置的每个VIP和每个更高层实体。 增强的VIP端口连接功能利用VIP SAP来隧道客户发起的第2层控制协议（L2CP）。 特殊复用SAP处理高层实体的帧。 服务实例复用实体利用特殊复用SAP在PIP或客户骨干端口与PBBN内的实体之间传输帧。

公开(公告)号：US20130021901A1

公开(公告)日：2013-01-24

申请号：US13638050

申请日：2010-03-30

申请人： Zhemin Ding ,  Panagiotis Saltsidis

发明人： Zhemin Ding ,  Panagiotis Saltsidis

IPC分类号： H04L12/437

CPC分类号： H04L12/4625 ,  H04L12/4015 ,  H04L12/437 ,  H04L12/4637

摘要： The present invention relates to a method in an Ethernet ring for protecting the Ethernet ring from a superloop going through the Ethernet ring, wherein the Ethernet ring comprises at least one ring node and two interface nodes between the Ethernet ring and a VPLS-domain, the Ethernet ring further comprises a ring protection link, the method comprises the steps of: receiving in one of the interface nodes a withdrawal message intended to indicate that the other interface node is malfunctioning, the method being further characterized by the further step of; maintaining said ring protection link in the Ethernet ring in response to the withdrawal message.

摘要翻译： 本发明涉及一种以太网环中的一种方法，用于保护以太网环免受通过以太网环的超级环，其中以太网环包括以太网环和VPLS域之间的至少一个环形节点和两个接口节点， 以太网环进一步包括环形保护链路，该方法包括以下步骤：在接口节点之一接收用于指示其他接口节点发生故障的提取消息，该方法的进一步特征在于进一步的步骤; 响应于提取消息，在以太网环中维护所述环路保护链路。

公开(公告)号：US20120314565A1

公开(公告)日：2012-12-13

申请号：US13580045

申请日：2010-03-30

申请人： Zhemin Ding ,  Panagiotis Saltsidis

发明人： Zhemin Ding ,  Panagiotis Saltsidis

IPC分类号： H04L12/24

CPC分类号： H04L12/437 ,  H04L12/4015 ,  H04L12/4637

摘要： The present invention relates to a method in an interface node for protecting an Ethernet ring from a superloop going through the Ethernet ring, wherein the Ethernet ring comprises a pair of interface nodes between the Ethernet ring and a VPLS-domain, the method comprising the steps of: receiving in the interface node a priority message indicating a priority level for each Ethernet ring connected to the VPLS-domain; receiving in the interface node a withdrawal message intended to indicate that the other interface node is malfunctioning; and transmitting from the interface node a signal failure message to the Ethernet ring in a case any other Ethernet rings has a lower priority level than said Ethernet ring.

摘要翻译： 接口节点中的方法本发明涉及一种用于保护以太网环从超级环路通过以太网环的接口节点中的方法，其中以太网环包括以太网环与VPLS域之间的一对接口节点，该方法包括步骤 在接口节点接收指示连接到VPLS域的每个以太网环的优先级的优先级消息; 在所述接口节点中接收旨在指示所述另一接口节点故障的提取消息; 并且在任何其它以太网环具有比所述以太网环较低的优先级的情况下，从所述接口节点向所述以太网环发送信号故障消息。

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。

公开(公告)号：US20100034118A1

公开(公告)日：2010-02-11

申请号：US12440868

申请日：2007-12-18

申请人： Panagiotis Saltsidis

发明人： Panagiotis Saltsidis

IPC分类号： H04L12/28

CPC分类号： H04L69/18 ,  C04B28/02 ,  C04B40/0039 ,  C04B2103/52 ,  C04B2111/1081 ,  H04L12/4625 ,  H04L12/4633 ,  H04L12/4662 ,  H04L29/06163 ,  H04L49/251 ,  C04B22/00 ,  C04B2103/0086 ,  C04B2103/44 ,  C04B22/124 ,  C04B24/06

摘要： A method and Bridge in a Provider Backbone Bridge Network (PBBN) for enabling frames from a Higher Layer Entity attached alternatively to a Provider Instance Port (PIP) on an I-Component of a Backbone Edge Bridge or to a Customer Backbone Port on a B-Component of the Backbone Edge Bridge, to reach an intended entity in the PBBN. A Virtual Instance Port Service Access Point (VIP SAP) is configured for every VIP and every Higher Layer Entity configured on the I-Component. An Enhanced VIP Port Connectivity function utilizes the VIP SAP to tunnel customer-initiated Layer 2 Control Protocols (L2CPs). A Special Multiplexed SAP handles the frames of the Higher Layer Entity, and is assigned an I-SID value that is universally recognized to identify the L2CPs. A Service Instance Multiplex Entity utilizes the Special Multiplexed SAP to transfer frames between the PIP or the Customer Backbone Port and the entity inside the PBBN.

摘要翻译： 提供者骨干桥网络（PBBN）中的方法和桥接器，用于使来自更高层实体的帧可替代地连接到骨干边缘桥的I组件上的提供者实例端口（PIP）或B上的客户骨干端口 - 骨干边缘桥梁的组件，以达到PBBN中的预期实体。 虚拟实例端口服务接入点（VIP SAP）被配置为在I组件上配置的每个VIP和每个更高层实体。 增强的VIP端口连接功能利用VIP SAP来隧道客户发起的第2层控制协议（L2CP）。 特殊的多路复用SAP处理较高层实体的帧，并分配一个普遍被识别以识别L2CP的I-SID值。 服务实例复用实体利用特殊复用SAP在PIP或客户骨干端口与PBBN内的实体之间传输帧。