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51.发明申请公开(公告)号：US20110249567A1
公开(公告)日：2011-10-13
申请号：US12757774
申请日：2010-04-09
申请人： Sriganesh Kini , Rishi Mehta
发明人： Sriganesh Kini , Rishi Mehta
IPC分类号： H04L12/26
CPC分类号： H04W24/00 , H04W92/045
摘要： On a first network element in a radio access network (RAN), supporting operations, management and administration (OAM) between network elements that support Ethernet in the first mile (EFM) and network elements that support connectivity fault management (CFM) in the radio access network by receiving an EFM message from a second network element that supports EFM, wherein the second network element is in the RAN and wherein the EFM message includes OAM data; converting the OAM data from the EFM message into a sub-type-length-value (sub-TLV) of a CFM message; and transmitting the CFM message including the OAM data in the sub-TLV to a third network element that supports CFM, wherein the third network element is in the RAN, whereby an end-to-end OAM sublayer is provided in the RAN by conversion of OAM data from EFM to CFM.
摘要翻译： 在无线电接入网络（RAN）中的第一网络元件上，支持在第一英里（EFM）中支持以太网的网络元件与在无线电中支持连接故障管理（CFM）的网络元件之间的支持操作，管理和管理（OAM） 通过从支持EFM的第二网元接收EFM消息，其中所述第二网元在所述RAN中，并且其中所述EFM消息包括OAM数据; 将来自EFM消息的OAM数据转换成CFM消息的子类型长度值（sub-TLV）; 以及将包含所述子TLV中的所述OAM数据的所述CFM消息发送到支持CFM的第三网元，其中，所述第三网元处于所述RAN中，由此通过转换所述RAN中的端到端OAM子层 OAM数据从EFM到CFM。
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52.发明申请ADDRESS RESOLUTION OPTIMIZATION PROCEDURE TO EFFECT A GRADUAL CUTOVER FROM A PROVIDER BRIDGE NETWORK TO A VPLS OR PROVIDER BACKBONE BRIDGING NETWORK 有权解决方案优化程序，将梯形图从一个提供者桥接网络转换为一个VPLS或者提供者背桥网络公开(公告)号：US20110194559A1
公开(公告)日：2011-08-11
申请号：US13087279
申请日：2011-04-14
IPC分类号： H04L12/56
CPC分类号： H04L45/00 , H04L12/4625 , H04L29/12028 , H04L45/02 , H04L45/025 , H04L45/52 , H04L45/66 , H04L61/103
摘要： A method and apparatus that operates two bridging protocols in a hybrid bridging node is described. The operation of the two bridging protocols in the hybrid node allows for an incremental transition of a provider bridging network from operating a legacy bridging protocol that shares MAC addresses to a bridging network that operates VPLS and/or PBB bridging protocols. The hybrid bridging node selectively broadcasts address resolution packets and unicast packets with unknown MAC addresses from the nodes operating VPLS and/or PBB to nodes operating a legacy bridging protocol.
摘要翻译： 描述了在混合桥接节点中操作两个桥接协议的方法和装置。 混合节点中的两个桥接协议的操作允许供应商桥接网络从运行共享MAC地址的传统桥接协议到运行VPLS和/或PBB桥接协议的桥接网络的增量转换。 混合桥接节点选择性地将地址解析分组和未知MAC地址的单播分组从运行VPLS和/或PBB的节点广播到运行传统桥接协议的节点。
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公开(公告)号：US07966420B2
公开(公告)日：2011-06-21
申请号：US11955971
申请日：2007-12-13
申请人： Rishi Mehta , Sriganesh Kini , Peter Arberg
发明人： Rishi Mehta , Sriganesh Kini , Peter Arberg
IPC分类号： G06F15/16
CPC分类号： H04L69/40 , H04L41/06 , H04L41/12 , H04L43/0811 , H04L43/50
摘要： Techniques for providing connectivity fault management (CFM) for a multi-tiered network are described herein. In one embodiment, a link trace message (LTM) is received at a provider edge (PE) router and originated from a first Ethernet node and destined to a second Ethernet node, where the PE router interfaces an Ethernet and a multi-protocol label switching (MPLS) network. In response, the PE router initiates an MPLS trace session, including generating an MPLS trace message based on the LTM message to one or more MPLS nodes along a path between the first and second Ethernet nodes within the MPLS network. Subsequently, in response to one or more MPLS trace reply messages from the MPLS nodes of the MPLS network, the PE router generates a first link trace reply (LTR) message and sends the first LTR message to the first Ethernet node over the Ethernet. Other methods and apparatuses are also described.
摘要翻译： 本文描述了用于为多层网络提供连通性故障管理（CFM）的技术。 在一个实施例中，链路跟踪消息（LTM）在提供商边缘（PE）路由器处被接收并且源自第一以太网节点，并且发往第二以太网节点，其中PE路由器接口以太网和多协议标签交换 （MPLS）网络。 作为响应，PE路由器发起MPLS跟踪会话，包括基于LTM消息向沿着MPLS网络中的第一和第二以太网节点之间的路径的一个或多个MPLS节点生成MPLS跟踪消息。 随后，响应于来自MPLS网络的MPLS节点的一个或多个MPLS跟踪应答消息，PE路由器生成第一链路跟踪应答（LTR）消息，并且通过以太网将第一LTR消息发送到第一以太网节点。 还描述了其它方法和装置。
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54.发明申请Pay-As-You-Grow Gradual Cutover Method To Scale A Provider Bridge Network To A VPLS Or Provider Backbone Bridging Network 有权按比例增长渐进切割方法将提供商网络扩展到VPLS或提供商骨干桥接网络公开(公告)号：US20100271980A1
公开(公告)日：2010-10-28
申请号：US12463365
申请日：2009-05-08
CPC分类号： H04L12/462 , H04L12/4641 , H04L45/586 , H04L49/45 , H04L49/602 , H04L49/604
摘要： A method and apparatus that operates two bridging protocols in a hybrid bridging node is described. The operation of the two bridging protocols in the hybrid node allows for an incremental transition of a provider bridging network from operating a legacy bridging protocol that shares MAC addresses to a bridging network that operates VPLS and/or PBB bridging protocols. The hybrid bridging node selectively broadcasts unicast packets with unknown MAC addresses from the nodes operating VPLS and/or PBB to nodes operating a legacy bridging protocol.
摘要翻译： 描述了在混合桥接节点中操作两个桥接协议的方法和装置。 混合节点中的两个桥接协议的操作允许供应商桥接网络从运行共享MAC地址的传统桥接协议到运行VPLS和/或PBB桥接协议的桥接网络的增量转换。 混合桥接节点从运行VPLS和/或PBB的节点选择性地广播具有未知MAC地址的单播分组到运行传统桥接协议的节点。
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公开(公告)号：US20100061252A1
公开(公告)日：2010-03-11
申请号：US12207065
申请日：2008-09-09
申请人： Sriganesh Kini , Rishi Mehta
发明人： Sriganesh Kini , Rishi Mehta
IPC分类号： H04L12/26
CPC分类号： H04L43/0811 , H04L12/4641 , H04L43/10
摘要： A method and apparatus for reducing the number of CC messages transmitted in a provider network. In one embodiment of the invention, a first service provider network element receives CC messages from a first customer network at a first periodicity rate. The first service provider network element stores the received CC messages and reduces the first periodicity rate to create a second periodicity rate that is smaller than the first periodicity rate. The first service provider network element transmits CC messages to a second service provider network element through the provider network at the second periodicity rate. Other methods and apparatus are also described.
摘要翻译： 一种用于减少在提供商网络中发送的CC消息的数量的方法和装置。 在本发明的一个实施例中，第一服务提供商网络元件以第一周期性速率从第一客户网络接收CC消息。 第一服务提供商网元存储所接收的CC消息并且减小第一周期率以创建小于第一周期性速率的第二周期性速率。 第一服务提供商网络单元以第二周期性速率通过提供商网络将CC消息发送到第二服务提供商网络元件。 还描述了其它方法和装置。
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56.发明授权Internetworking and IP address management in unified MPLS and IP networks 有权统一的MPLS和IP网络中的互联和IP地址管理公开(公告)号：US08988985B2
公开(公告)日：2015-03-24
申请号：US13531252
申请日：2012-06-22
申请人： Sriganesh Kini , Hector Avalos
发明人： Sriganesh Kini , Hector Avalos
CPC分类号： H04L41/0668 , H04L12/4641 , H04L45/04 , H04L45/50 , H04L45/74 , H04L61/2061
摘要： IP addresses are efficiently assigned and advertised across the boundary of two network domains. The two network domains include an access network that implements MPLS-TP and a core network that implements IP, MPLS, or a combination of both. A primary BN at the domain boundary receives an assignment of an IP prefix for a VPN that connects a set of CEs to one or more SNs. The IP prefix represents a pool of IP addresses. The primary BN assigns only one IP address to both itself and a standby BN for the VPN to minimize the use of assigned IP addresses. The primary BN assigns the other IP addresses to the CEs in the VPN. The primary BN then advertises the IP prefix into the core network to enable routing of network data traffic across the network domain boundary.
摘要翻译： IP地址被有效地分配并通过两个网络域的边界通告。 两个网络域包括实现MPLS-TP的接入网络和实现IP，MPLS或两者的组合的核心网络。 域边界上的主要BN接收将一组CE连接到一个或多个SN的VPN的IP前缀的分配。 IP前缀表示IP地址池。 主要BN为本身分配一个IP地址，为该VPN分配一个备用BN，以最小化分配的IP地址的使用。 主要BN将其他IP地址分配给VPN中的CE。 然后，主要BN将IP前缀公布到核心网络中，以实现网络边界上的网络数据流量路由。
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公开(公告)号：US08885461B2
公开(公告)日：2014-11-11
申请号：US13281391
申请日：2011-10-25
申请人： Sriganesh Kini , Srikanth Narayanan
发明人： Sriganesh Kini , Srikanth Narayanan
IPC分类号： H04L12/26 , H04L12/723 , H04L12/707 , H04L12/703
摘要： A first network element in an MPLS network receives a first label advertised from a second network element in the network. The first network element computes a shortest path tree (SPT) to reach a destination network element under a potential failure condition. The second network element is a nexthop of the first network element in the computed SPT and is not upstream from the potential failure condition in the computed SPT. The first network element determines that a third network element in the network is a Point of Local Repair (PLR) when the potential failure condition is realized. The first network element distributes a second label to the third network element for a backup LDP Label Switched Path (LSP) that will serve as a backup path when the potential failure condition is realized. The first network element installs a swap action from the second label to the first label.
摘要翻译： MPLS网络中的第一网元接收从网络中的第二网元发布的第一标签。 第一个网元计算一个最短路径树（SPT），以在潜在的故障条件下到达目标网元。 第二个网元是计算的SPT中第一个网元的下一跳，并不在计算的SPT中的潜在故障条件的上游。 当实现潜在的故障条件时，第一网络元件确定网络中的第三网络元件是本地修复点（PLR）。 第一个网络元件将第二个标签分配给第三个网络元素，用于备份LDP标签交换路径（LSP），该备份LDP标签交换路径（LSP）将在实现潜在的故障条件时作为备用路径。 第一个网络元素将第二个标签的交换动作安装到第一个标签。
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58.发明授权公开(公告)号：US08792330B2
公开(公告)日：2014-07-29
申请号：US13171407
申请日：2011-06-28
申请人： Faisal Andre Khan , Sriganesh Kini
发明人： Faisal Andre Khan , Sriganesh Kini
CPC分类号： H04L12/4641
摘要： Techniques for recovering from hierarchical virtual private LAN service (HVPLS) hub connectivity failure are described herein. In one embodiment of the invention, a provider edge network element reuses an HVPLS spoke connectivity failure recovery mechanism in an MTU to protect against a failure of HVPLS hub connectivity. The PE network element monitors hub facing connectivity elements and declares a hub connectivity failure upon a certain amount of those hub facing connectivity elements failing, and fabricates a failure of its spoke facing connectivity elements causing the MTU to detect an HVPLS spoke connectivity failure and switch to a secondary HVPLS spoke connection. Other methods and apparatuses are described.
摘要翻译： 本文描述了从分级虚拟专用LAN服务（HVPLS）集线器连接故障中恢复的技术。 在本发明的一个实施例中，提供商边缘网元在MTU中重新使用HVPLS辐条连接故障恢复机制，以防止HVPLS集线器连接的故障。 PE网络元件监视中枢面向连接元素，并在一定数量的面向这些中枢的连接元件发生故障时声明中枢连接性故障，并制造其辐条面向连接元件的故障，导致MTU检测到HVPLS辐条连接故障，并切换到 次级HVPLS辐条连接。 描述其他方法和装置。
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59.发明授权Pay-as-you-grow gradual cutover method to scale a provider bridge network to a VPLS or provider backbone bridging network 有权按需增长逐步切割方式，将供应商网络网络扩展到VPLS或提供商骨干桥接网络公开(公告)号：US08730956B2
公开(公告)日：2014-05-20
申请号：US13164760
申请日：2011-06-20
IPC分类号： H04L12/28
CPC分类号： H04L12/462 , H04L12/4641 , H04L45/586 , H04L49/45 , H04L49/602 , H04L49/604
摘要： A method and apparatus that operates two bridging protocols in a hybrid bridging node is described. The operation of the two bridging protocols in the hybrid node allows for an incremental transition of a provider bridging network from operating a legacy bridging protocol that shares MAC addresses to a bridging network that operates VPLS and/or PBB bridging protocols. The hybrid bridging node selectively broadcasts unicast packets with unknown MAC addresses from the nodes operating VPLS and/or PBB to nodes operating a legacy bridging protocol.
摘要翻译： 描述了在混合桥接节点中操作两个桥接协议的方法和装置。 混合节点中的两个桥接协议的操作允许供应商桥接网络从运行共享MAC地址的传统桥接协议到运行VPLS和/或PBB桥接协议的桥接网络的增量转换。 混合桥接节点从运行VPLS和/或PBB的节点选择性地广播具有未知MAC地址的单播分组到运行传统桥接协议的节点。
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60.发明授权Address resolution optimization procedure to effect a gradual cutover from a provider bridge network to a VPLS or provider backbone bridging network 有权地址分辨率优化程序，以实现从供应商网桥到VPLS或提供商骨干桥接网络的逐渐切换公开(公告)号：US08526433B2
公开(公告)日：2013-09-03
申请号：US13087279
申请日：2011-04-14
IPC分类号： H04L12/28
CPC分类号： H04L45/00 , H04L12/4625 , H04L29/12028 , H04L45/02 , H04L45/025 , H04L45/52 , H04L45/66 , H04L61/103
摘要： A method and apparatus that operates two bridging protocols in a hybrid bridging node is described. The operation of the two bridging protocols in the hybrid node allows for an incremental transition of a provider bridging network from operating a legacy bridging protocol that shares MAC addresses to a bridging network that operates VPLS and/or PBB bridging protocols. The hybrid bridging node selectively broadcasts address resolution packets and unicast packets with unknown MAC addresses from the nodes operating VPLS and/or PBB to nodes operating a legacy bridging protocol.
摘要翻译： 描述了在混合桥接节点中操作两个桥接协议的方法和装置。 混合节点中的两个桥接协议的操作允许供应商桥接网络从运行共享MAC地址的传统桥接协议到运行VPLS和/或PBB桥接协议的桥接网络的增量转换。 混合桥接节点选择性地将地址解析分组和未知MAC地址的单播分组从运行VPLS和/或PBB的节点广播到运行传统桥接协议的节点。
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