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1. 发明授权

US07724651B2 Redundant far-end pseudo-wire connectivity 有权
标题翻译：冗余远端伪线连接
公开(公告)号：US07724651B2
公开(公告)日：2010-05-25
申请号：US11712592
申请日：2007-02-27
申请人： Benjamin Washam , Satyam Sinha , Bassem M. Abdouni , Praveen Muley , Tiberiu Grigoriu , Stephen Tan , Boovaraghavan Ranganathan
发明人： Benjamin Washam , Satyam Sinha , Bassem M. Abdouni , Praveen Muley , Tiberiu Grigoriu , Stephen Tan , Boovaraghavan Ranganathan
IPC分类号： H04J1/16
CPC分类号： H04L12/2869 , H04L12/2859 , H04L43/0811 , H04L45/00 , H04L45/22 , H04L45/28 , H04L45/306 , H04L67/327 , H04L69/40
摘要： Providing a network service is disclosed. A data associated with the service is received. It is determined whether a local context associated with the service is in an active state with respect to the service. The data is redirected to another chassis, via an inter-chassis backup connection, if it is determined that the local context is not in an active state with respect to the service.
摘要翻译：提供网络服务被公开。接收与该服务相关联的数据。确定与服务相关联的本地上下文是否处于关于该服务的活动状态。如果确定本地上下文相对于该服务不处于活动状态，则数据经由机架间备份连接重定向到另一机架。

2. 发明申请

US20080181233A1 Redundant far-end pseudo-wire connectivity 有权
标题翻译：冗余远端伪线连接
公开(公告)号：US20080181233A1
公开(公告)日：2008-07-31
申请号：US11712592
申请日：2007-02-27
申请人： Benjamin Washam , Satyam Sinha , Bassem M. Abdouni , Praveen Muley , Tiberiu Grigoriu , Stephen Tan , Boovaraghavan Ranganathan
发明人： Benjamin Washam , Satyam Sinha , Bassem M. Abdouni , Praveen Muley , Tiberiu Grigoriu , Stephen Tan , Boovaraghavan Ranganathan
IPC分类号： H04L12/56
CPC分类号： H04L12/2869 , H04L12/2859 , H04L43/0811 , H04L45/00 , H04L45/22 , H04L45/28 , H04L45/306 , H04L67/327 , H04L69/40
摘要： Providing a network service is disclosed. A data associated with the service is received. It is determined whether a local context associated with the service is in an active state with respect to the service. The data is redirected to another chassis, via an inter-chassis backup connection, if it is determined that the local context is not in an active state with respect to the service.
摘要翻译：提供网络服务被公开。接收与服务相关联的数据。确定与服务相关联的本地上下文是否处于关于该服务的活动状态。如果确定本地上下文相对于该服务不处于活动状态，则数据经由机架间备份连接重定向到另一机架。

3. 发明授权

US07660236B2 System and method of multi-nodal APS control protocol signaling 失效
标题翻译：多节点APS控制协议信令的系统和方法
公开(公告)号：US07660236B2
公开(公告)日：2010-02-09
申请号：US11411969
申请日：2006-04-27
申请人： Kajal Saha , Neil Darren Hart , Tiberiu Grigoriu
发明人： Kajal Saha , Neil Darren Hart , Tiberiu Grigoriu
IPC分类号： H04J1/16
CPC分类号： H04J3/14 , H04J2203/006 , H04L45/00 , H04L45/22 , H04L45/28
摘要： A system and method for providing APS (automatic protection switching) redundant pair control protocol signaling for multi-nodal APS (MN-APS) is provided. Periodic liveliness messages are exchanged between each node of a redundant pair. Each liveliness message contains an IHY (I heard you) message which indicates whether or not the sender of the liveliness message received within a duration of a hold time a previously transmitted liveliness message from the recipient. When more than one MN-APS group is configured between two redundant nodes, liveliness messages are bundled together to reduce processing loads.
摘要翻译：提供了一种用于为多节点APS（MN-APS）提供APS（自动保护切换）冗余对控制协议信令的系统和方法。在冗余对的每个节点之间交换周期性的活力消息。每个活跃消息包含一个IHY（我听说过）消息，该消息指示在保持时间的持续时间内接收到的活跃消息的发送者是否是来自接收者的先前发送的活力消息。当两个冗余节点之间配置了多个MN-APS组时，将生命线消息捆绑在一起以减少处理负载。

4. 发明授权

US07948900B2 Method and system for verifying connectivity of multi-segment pseudo-wires 有权
标题翻译：用于验证多段伪线连接的方法和系统
公开(公告)号：US07948900B2
公开(公告)日：2011-05-24
申请号：US11798086
申请日：2007-05-10
申请人： Neil Hart , Tiberiu Grigoriu , Mustapha Aissaoui
发明人： Neil Hart , Tiberiu Grigoriu , Mustapha Aissaoui
IPC分类号： H04J1/16 , H04L12/26
CPC分类号： H04L45/50 , H04L43/0811 , H04L43/10 , H04L43/50
摘要： A method for testing connectivity of a multi-segment pseudo-wire (“MS-PW”) in a network, the method comprising: sending an echo request message from a first provider edge (“PE”) device to a second provider edge (“PE”) device for a section of the multi-segment pseudo-wire (“MS-PW”) between the first provider edge (“PE”) device and the second provider edge (“PE”) device; the echo request message being identified as such by a control word contained therein; an inner label of the echo request message having a time-to-live (“TTL”) value set to a number of segments in the section; the time-to-live (“TTL”) value for determining whether the control word is to be inspected as it traverses the section; upon the echo request message arriving at the second provider edge (“PE”) device, the second provider edge (“PE”) device recognizing the echo request message as such by inspecting the control word contained therein; and, receiving an echo reply message from the second provider edge (“PE”) device in response to the echo request message, the echo reply message confirming connectivity of the section.
摘要翻译：一种用于测试网络中的多段伪线（“MS-PW”）的连通性的方法，所述方法包括：将回波请求消息从第一提供商边缘（“PE”）设备发送到第二提供商边缘 “PE”）设备之间的第一提供商边缘（“PE”）设备和第二提供商边缘（“PE”）设备之间的多段伪线（“MS-PW”）的一部分）所述回声请求消息通过其中包含的控制字被识别; 所述回声请求消息的内部标签具有设置到所述部分中的多个段的生存时间（“TTL”）值; 用于确定控制字在穿过该部分时是否被检查的生存时间（“TTL”）值; 在到达第二提供商边缘（“PE”）设备的回波请求消息的第二提供商边缘（“PE”）设备上通过检查其中包含的控制字来识别回声请求消息; 以及响应于所述回波请求消息从所述第二提供商边缘（“PE”）设备接收回应应答消息，所述回复应答消息确认所述部分的连通性。

5. 发明授权

US07782847B2 Method and system for verifying connectivity of multi-segment pseudo-wires by tracing 有权
标题翻译：通过跟踪验证多段伪线的连通性的方法和系统
公开(公告)号：US07782847B2
公开(公告)日：2010-08-24
申请号：US11582989
申请日：2006-10-19
申请人： Michael Nghia Hua , Mustapha Aissaoui , Tiberiu Grigoriu
发明人： Michael Nghia Hua , Mustapha Aissaoui , Tiberiu Grigoriu
IPC分类号： H04L12/28
CPC分类号： H04L43/0811 , H04L43/10 , H04L45/50
摘要： A method for testing connectivity of a multi-segment pseudo-wire in a packet switched network, the method comprising: (a) sending an echo request message from a first provider edge device to a second provider edge device for a first segment of the multi-segment pseudo-wire between the first provider edge device and the second provider edge device; and, (b) receiving an echo reply message from the second provider edge device in response to the echo request message, the echo reply message: confirming connectivity of the first segment; indicating whether there is a second segment in the multi-segment pseudo-wire between the second provider edge device and a third provider edge device; and, if there is a second segment, including information pertaining to the second segment.
摘要翻译：一种用于测试分组交换网络中的多段伪线的连通性的方法，所述方法包括：（a）将第一提供商边缘设备的回波请求消息发送到第二提供商边缘设备，用于多在第一提供商边缘设备和第二提供商边缘设备之间的段伪线; 以及（b）响应于所述回声请求消息从所述第二提供商边缘设备接收回应应答消息，所述回应应答消息：确认所述第一段的连接性; 指示第二提供商边缘设备和第三提供商边缘设备之间的多段伪线中是否存在第二段; 并且如果存在第二段，包括关于第二段的信息。

6. 发明申请

US20080279110A1 Method and system for verifying connectivity of multi-segment pseudo-wires 有权
标题翻译：用于验证多段伪线连接的方法和系统
公开(公告)号：US20080279110A1
公开(公告)日：2008-11-13
申请号：US11798086
申请日：2007-05-10
申请人： Neil Hart , Tiberiu Grigoriu , Mustapha Aissaoui
发明人： Neil Hart , Tiberiu Grigoriu , Mustapha Aissaoui
IPC分类号： H04L12/26
CPC分类号： H04L45/50 , H04L43/0811 , H04L43/10 , H04L43/50
摘要： A method for testing connectivity of a multi-segment pseudo-wire (“MS-PW”) in a network, the method comprising: sending an echo request message from a first provider edge (“PE”) device to a second provider edge (“PE”) device for a section of the multi-segment pseudo-wire (“MS-PW”) between the first provider edge (“PE”) device and the second provider edge (“PE”) device; the echo request message being identified as such by a control word contained therein; an inner label of the echo request message having a time-to-live (“TTL”) value set to a number of segments in the section; the time-to-live (“TTL”) value for determining whether the control word is to be inspected as it traverses the section; upon the echo request message arriving at the second provider edge (“PE”) device, the second provider edge (“PE”) device recognizing the echo request message as such by inspecting the control word contained therein; and, receiving an echo reply message from the second provider edge (“PE”) device in response to the echo request message, the echo reply message confirming connectivity of the section.
摘要翻译：一种用于测试网络中的多段伪线（“MS-PW”）的连通性的方法，所述方法包括：将回波请求消息从第一提供商边缘（“PE”）设备发送到第二提供商边缘 “PE”）设备之间的第一提供商边缘（“PE”）设备和第二提供商边缘（“PE”）设备之间的多段伪线（“MS-PW”）的一部分）所述回声请求消息通过其中包含的控制字被识别; 所述回声请求消息的内部标签具有设置到所述部分中的多个段的生存时间（“TTL”）值; 用于确定控制字在穿过该部分时是否被检查的生存时间（“TTL”）值; 在到达第二提供商边缘（“PE”）设备的回波请求消息的第二提供商边缘（“PE”）设备上通过检查其中包含的控制字来识别回声请求消息; 并且响应于所述回声请求消息从所述第二提供商边缘（“PE”）设备接收回应应答消息，所述回复应答消息确认所述部分的连通性。

7. 发明申请

US20100306572A1 Apparatus and method to facilitate high availability in secure network transport 审中-公开
标题翻译：在安全网络传输中促进高可用性的装置和方法
公开(公告)号：US20100306572A1
公开(公告)日：2010-12-02
申请号：US12455357
申请日：2009-06-01
申请人： Alexandro Salvarani , Tiberiu Grigoriu
发明人： Alexandro Salvarani , Tiberiu Grigoriu
IPC分类号： G06F21/00 , G06F11/14
CPC分类号： H04L63/0435 , H04L63/164
摘要： Embodiments described herein are effective to detect, repair and recover automatically IPSec tunnels due to failures of transport gear (L2/L3 switches) as well as the IPsec gateway components. Load balance is also an integral part of the approach. When a failure is repaired, the architecture in various embodiments will re-establish load balance and high availability automatically at L2 and L3 and preserve security during the switch-over and recovery process.
摘要翻译：本文描述的实施例有效地检测，修复和恢复由于传输齿轮（L2 / L3交换机）以及IPsec网关组件的故障导致的IPSec隧道。负载平衡也是该方法的组成部分。当修复故障时，各种实施例中的架构将在L2和L3处自动重新建立负载平衡和高可用性，并在切换和恢复过程中保持安全性。

8. 发明申请

US20080095061A1 Method and system for verifying connectivity of multi-segment pseudo-wires by tracing 有权
标题翻译：通过跟踪验证多段伪线的连通性的方法和系统
公开(公告)号：US20080095061A1
公开(公告)日：2008-04-24
申请号：US11582989
申请日：2006-10-19
申请人： Michael Nghia Hua , Mustapha Aissaoui , Tiberiu Grigoriu
发明人： Michael Nghia Hua , Mustapha Aissaoui , Tiberiu Grigoriu
IPC分类号： H04J3/14 , H04J1/16 , H04L12/56
CPC分类号： H04L43/0811 , H04L43/10 , H04L45/50
摘要： A method for testing connectivity of a multi-segment pseudo-wire in a packet switched network, the method comprising: (a) sending an echo request message from a first provider edge device to a second provider edge device for a first segment of the multi-segment pseudo-wire between the first provider edge device and the second provider edge device; and, (b) receiving an echo reply message from the second provider edge device in response to the echo request message, the echo reply message: confirming connectivity of the first segment; indicating whether there is a second segment in the multi-segment pseudo-wire between the second provider edge device and a third provider edge device; and, if there is a second segment, including information pertaining to the second segment.
摘要翻译：一种用于测试分组交换网络中的多段伪线的连通性的方法，所述方法包括：（a）将第一提供商边缘设备的回波请求消息发送到第二提供商边缘设备，用于多在第一提供商边缘设备和第二提供商边缘设备之间的段伪线; 以及（b）响应于所述回声请求消息从所述第二提供商边缘设备接收回应应答消息，所述回应应答消息：确认所述第一段的连接性; 指示第二提供商边缘设备和第三提供商边缘设备之间的多段伪线中是否存在第二段; 并且如果存在第二段，包括关于第二段的信息。

9. 发明申请

US20070253327A1 System and method of multi-nodal APS control protocol signalling 失效
标题翻译：多节点APS控制协议信令的系统和方法
公开(公告)号：US20070253327A1
公开(公告)日：2007-11-01
申请号：US11411969
申请日：2006-04-27
申请人： Kajal Saha , Neil Hart , Tiberiu Grigoriu
发明人： Kajal Saha , Neil Hart , Tiberiu Grigoriu
IPC分类号： H04J3/14
CPC分类号： H04J3/14 , H04J2203/006 , H04L45/00 , H04L45/22 , H04L45/28
摘要： A system and method for providing APS (automatic protection switching) redundant pair control protocol signaling for multi-nodal APS (MN-APS) is provided. Periodic liveliness messages are exchanged between each node of a redundant pair. Each liveliness message contains an IHY (I heard you) message which indicates whether or not the sender of the liveliness message received within a duration of a hold time a previously transmitted liveliness message from the recipient. When more than one MN-APS group is configured between two redundant nodes, liveliness messages are bundled together to reduce processing loads.
摘要翻译：提供了一种用于为多节点APS（MN-APS）提供APS（自动保护切换）冗余对控制协议信令的系统和方法。在冗余对的每个节点之间交换周期性的活力消息。每个活跃消息包含一个IHY（我听说过）消息，该消息指示在保持时间的持续时间内接收到的活跃消息的发送者是否是来自接收者的先前发送的活力消息。当两个冗余节点之间配置了多个MN-APS组时，将生命线消息捆绑在一起以减少处理负载。

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