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11. 发明授权

US08953616B2 Shortest path bridging in a multi-area network 有权
标题翻译：多区域网络中最短路径桥接
公开(公告)号：US08953616B2
公开(公告)日：2015-02-10
申请号：US13442139
申请日：2012-04-09
申请人： David Ian Allan , János Farkas , Panagiotis Saltsidis , Martin Julien
发明人： David Ian Allan , János Farkas , Panagiotis Saltsidis , Martin Julien
IPC分类号： H04L12/28 , H04L12/56
CPC分类号： H04L45/026 , H04L12/462 , H04L12/4625 , H04L12/4641 , H04L45/02 , H04L45/16 , H04L45/18 , H04L45/66
摘要： A method that improves multi-area routed Ethernet network design, in which multipath implementation in each of the areas is independent of each other area to allow optimal network design in each area. The network implements a shortest path bridging medium access control (SPBM) protocol. The areas include a Level 2 (L2) routing area coupled to a Level 1 (L1) routing area via multiple area border bridges (ABBs). The L1 routing area including a backbone edge bridge (BEB) coupled to the ABBs via multiple L1 multipath instances identified by respective backbone VLAN identifiers (B-VIDs). The ABBs receive an advertisement from the BEB that indicates a set of BEB identifiers, each of which identifies the BEB and is associated with a respective B-VID. Each of the BEB identifiers is unique. The ABBs also advertise into the L2 routing area, and translate the B-VIDs based on service identifiers for frames transiting the ABBs.
摘要翻译：一种改进多区域路由以太网设计的方法，其中每个区域中的多径实现独立于彼此区域，以允许每个区域中的最佳网络设计。网络实现了最短路径桥接介质访问控制（SPBM）协议。这些区域包括通过多个区域边界网桥（ABB）耦合到1级（L1）路由区域的2级（L2）路由区域。 L1路由区域包括通过由相应主干VLAN标识符（B-VID）标识的多个L1多路径实例耦合到ABB的主干边缘桥（BEB）。 ABB从BEB接收到一个指示一组BEB标识符的广告，每个BEB标识符标识BEB并与相应的B-VID相关联。每个BEB标识符是唯一的。 ABB还向L2路由区域进行通告，并根据经过ABB的帧的服务标识符翻译B-VID。

12. 发明申请

US20150009861A1 Technique for Handling a Status Change in an Interconnect Node 审中-公开
标题翻译：处理互连节点状态变化的技术
公开(公告)号：US20150009861A1
公开(公告)日：2015-01-08
申请号：US14369322
申请日：2011-12-29
申请人： Peter Gerö Balázs , János Farkas , László Molnár , Panagiotis Saltsidis , Balázs Varga
发明人： Peter Gerö Balázs , János Farkas , László Molnár , Panagiotis Saltsidis , Balázs Varga
IPC分类号： H04L12/24
CPC分类号： H04L41/0816 , H04L41/00 , H04L41/12 , H04L45/02
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.
摘要翻译：描述了一种用于互连节点中的状态变化处理的技术，其中该节点包括一个数据平面，每个服务可以呈现被动状态或活动状态。节点中的方法方面包括向另一个节点发送改变已经或将要被执行的第一指示，等待从另一个节点接收另一个节点中的数据平面的第二指示设置为被动状态，并响应于接收到的指示，将节点的数据平面从被动状态激活到活动状态。另一节点中的方法方面还包括：从节点接收第一指示，响应于接收步骤钝化数据平面处于活动状态到被动状态，并且在钝化步骤完成时，第二个指示。

13. 发明申请

US20140112191A1 Technique for Ensuring Congruency in Link Aggregation 有权
标题翻译：确保链路聚合一致性的技术
公开(公告)号：US20140112191A1
公开(公告)日：2014-04-24
申请号：US13819526
申请日：2012-09-21
申请人： János Farkas , Balázs Peter Gerö , László Molnár , Panagiotis Saltsidis
发明人： János Farkas , Balázs Peter Gerö , László Molnár , Panagiotis Saltsidis
IPC分类号： H04L12/24
CPC分类号： H04L41/0873 , H04L41/0853 , H04L45/245 , Y02D50/30
摘要： The present disclosure provides a technique for ensuring that a service or conversation is carried in a congruent manner on a Link Aggregation Group (LAG). The Service ID (e.g., conversation ID) to link mapping is configured on both sides of the LAG independently of each other. The Service ID to link assignment is stored in a well-defined format, e.g. in an assignment table. A digest is then prepared on the assignment table. The digest is exchanged between the two sides of the LAG. If there is a mismatch between the digests, then the service is transmitted on a predefined and agreed-upon default link if congruency has to be enforced for that particular service. Furthermore, the digest exchange allows verification on the configuration to check whether all services to be handed-off are configured on both sides.
摘要翻译：本公开提供了一种用于确保在链路聚合组（LAG）上以一致方式携带服务或对话的技术。链路映射的服务ID（例如，会话ID）被配置在LAG的两侧，彼此独立。要链接分配的服务ID以明确定义的格式存储，例如。在作业表中。然后在作业表上准备摘要。摘要在LAG的两边交换。如果摘要之间不匹配，那么如果必须对该特定服务执行一致性，则服务将在预定义和约定的默认链接上传输。此外，摘要交换允许对配置进行验证，以检查是否在双方配置要分派的所有服务。

14. 发明申请

US20100054157A1 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：US20100054157A1
公开(公告)日：2010-03-04
申请号：US12523781
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 , H04L12/56
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。

15. 发明授权

US09077632B2 Interworking between ethernet and MPLS 有权
标题翻译：以太网和MPLS之间的互通
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。

16. 发明申请

US20130021901A1 Method For Protecting an Ethernet Ring From a Superloop Going Through The Ethernet Ring 有权
标题翻译：保护以太网环从超级环通过以太网环的方法
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。

17. 发明申请

US20120314565A1 METHOD FOR PROTECTION AGAINST SUPERLOOPS IN AN ETHERNET RING 审中-公开
标题翻译：用于在以太网环中防止超级防护的方法
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。

18. 发明授权

US09781005B2 Technique for ensuring congruency in link aggregation 有权
公开(公告)号：US09781005B2
公开(公告)日：2017-10-03
申请号：US13819526
申请日：2012-09-21
申请人： János Farkas , Balázs Peter Gerö , László Molnár , Panagiotis Saltsidis
发明人： János Farkas , Balázs Peter Gerö , László Molnár , Panagiotis Saltsidis
IPC分类号： H04L12/24 , H04L12/709
CPC分类号： H04L41/0873 , H04L41/0853 , H04L45/245 , Y02D50/30
摘要： The present disclosure provides a technique for ensuring that a service or conversation is carried in a congruent manner on a Link Aggregation Group (LAG). The Service ID (e.g., conversation ID) to link mapping is configured on both sides of the LAG independently of each other. The Service ID to link assignment is stored in a well-defined format, e.g. in an assignment table. A digest is then prepared on the assignment table. The digest is exchanged between the two sides of the LAG. If there is a mismatch between the digests, then the service is transmitted on a predefined and agreed-upon default link if congruency has to be enforced for that particular service. Furthermore, the digest exchange allows verification on the configuration to check whether all services to be handed-off are configured on both sides.

19. 发明授权

US08705542B2 L2 method for partial VLAN service migration 有权
标题翻译：部分VLAN服务迁移的L2方法
公开(公告)号：US08705542B2
公开(公告)日：2014-04-22
申请号：US12973987
申请日：2010-12-21
申请人： Balázs Peter Gerö , János Farkas , Panagiotis Saltsidis , Sriganesh Kini
发明人： Balázs Peter Gerö , János Farkas , Panagiotis Saltsidis , Sriganesh Kini
IPC分类号： H04L12/28
CPC分类号： H04L45/04 , H04L12/4625 , H04L12/4641
摘要： An upgraded edge node (e.g., enhanced PBB edge node, enhanced IP/MPLS edge node) and a method are described herein for providing a VLAN service for a customer in a metro network. In addition, a metro network is described herein which includes the upgraded edge nodes, traditional PB edge nodes, and a PB domain that has PB core nodes located therein.
摘要翻译：本文描述了升级边缘节点（例如，增强型PBB边缘节点，增强型IP / MPLS边缘节点）和方法，用于为城域网中的客户提供VLAN服务。另外，本文描述了一种城域网，其中包括升级边缘节点，传统PB边缘节点和PB核心节点位于其中的PB域。

20. 发明申请

US20130195111A1 Shortest Path Bridging in a Multi-Area Network 有权
标题翻译：多区域网络中的最短路径桥接
公开(公告)号：US20130195111A1
公开(公告)日：2013-08-01
申请号：US13442139
申请日：2012-04-09
申请人： David Ian Allan , János Farkas , Panagiotis Saltsidis , Martin Julien
发明人： David Ian Allan , János Farkas , Panagiotis Saltsidis , Martin Julien
IPC分类号： H04L12/28
CPC分类号： H04L45/026 , H04L12/462 , H04L12/4625 , H04L12/4641 , H04L45/02 , H04L45/16 , H04L45/18 , H04L45/66
摘要： A method that improves multi-area routed Ethernet network design, in which multipath implementation in each of the areas is independent of each other area to allow optimal network design in each area. The network implements a shortest path bridging medium access control (SPBM) protocol. The areas include a Level 2 (L2) routing area coupled to a Level 1 (L1) routing area via multiple area border bridges (ABBs). The L1 routing area including a backbone edge bridge (BEB) coupled to the ABBs via multiple L1 multipath instances identified by respective backbone VLAN identifiers (B-VIDs). The ABBs receive an advertisement from the BEB that indicates a set of BEB identifiers, each of which identifies the BEB and is associated with a respective B-VID. Each of the BEB identifiers is unique. The ABBs also advertise into the L2 routing area, and translate the B-VIDs based on service identifiers for frames transiting the ABBs.
摘要翻译：一种改进多区域路由以太网设计的方法，其中每个区域中的多径实现独立于彼此区域，以允许每个区域中的最佳网络设计。网络实现了最短路径桥接介质访问控制（SPBM）协议。这些区域包括通过多个区域边界网桥（ABB）耦合到1级（L1）路由区域的2级（L2）路由区域。 L1路由区域包括通过由相应主干VLAN标识符（B-VID）标识的多个L1多路径实例耦合到ABB的主干边缘桥（BEB）。 ABB从BEB接收到一个指示一组BEB标识符的广告，每个BEB标识符标识BEB并与相应的B-VID相关联。每个BEB标识符是唯一的。 ABB还向L2路由区域进行通告，并根据经过ABB的帧的服务标识符翻译B-VID。

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