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公开(公告)号：US10708132B2
公开(公告)日：2020-07-07
申请号：US14369322
申请日：2011-12-29
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.
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公开(公告)号：US20140112191A1
公开(公告)日：2014-04-24
申请号：US13819526
申请日：2012-09-21
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。
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公开(公告)号：US09781005B2
公开(公告)日：2017-10-03
申请号：US13819526
申请日：2012-09-21
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.
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4.发明申请Methods and Apparatus for Detecting and Handling Split Brain Issues in a Link Aggregation Group 有权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
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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公开(公告)号：US09240928B2
公开(公告)日：2016-01-19
申请号：US13146279
申请日：2011-06-20
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。
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公开(公告)号：US20130246635A1
公开(公告)日：2013-09-19
申请号：US13818883
申请日：2012-06-28
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。
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7.发明授权公开(公告)号：US09602348B2
公开(公告)日：2017-03-21
申请号：US14400619
申请日：2012-08-29
IPC分类号： H04L12/24 , H04L12/709 , H04L12/26
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.
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公开(公告)号：US09264298B2
公开(公告)日：2016-02-16
申请号：US13818883
申请日：2012-06-28
IPC分类号： H04L12/709 , 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实体可以被认为是“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。
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公开(公告)号：US09077626B2
公开(公告)日：2015-07-07
申请号：US13700822
申请日：2011-01-24
CPC分类号： H04L41/082 , G06F8/656 , H04L12/4645 , H04L12/4675 , H04L12/4687
摘要： A system and method for in-service migration for a Virtual Local Area Network, VLAN, service if a Provider Bridge Metro Ethernet Network, PB MEN, is upgraded to a Provider Backbone Bridge, PBB, MEN or an Internet Protocol/Multi Protocol Label Switching, IP/MPLS, MEN. After the deployment of the new PBB or IP/MPLS technology, a sequence of management actions are performed to configure PBB or IP/MPLS edge nodes to use the new technology as well as the old PB-based technology to support the VLAN service. Both old and new connectivity structures are maintained in the edge nodes during the entire migration process. Customer traffic is then redirected per edge node to the new technology. When each edge node entirely provides the VLAN service under the new technology, the migration is complete.
摘要翻译： 如果提供商桥梁城域以太网网络PB MEN，升级到提供商骨干桥，PBB，MEN或互联网协议/多协议标签交换，则虚拟局域网，VLAN，服务的在线迁移的系统和方法 ，IP / MPLS，MEN。 在部署新的PBB或IP / MPLS技术后，执行一系列管理操作，以配置PBB或IP / MPLS边缘节点以使用新技术以及旧的基于PB的技术来支持VLAN服务。 在整个迁移过程中，边缘节点都维护旧的和新的连接结构。 然后将客户流量重定向到每个边缘节点到新技术。 当每个边缘节点完全在新技术下提供VLAN服务时，迁移完成。
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公开(公告)号：US20130254327A1
公开(公告)日：2013-09-26
申请号：US13146279
申请日：2011-06-20
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.
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