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31.发明授权Label distribution protocol advertisement of services provided by application nodes 有权应用节点提供的服务的标签分发协议广告公开(公告)号：US09049099B2
公开(公告)日：2015-06-02
申请号：US12850952
申请日：2010-08-05
IPC分类号： H04L12/751 , H04L12/723 , H04L12/46
CPC分类号： H04L45/02 , H04L12/4633 , H04L45/507
摘要： An application node advertises service(s), using a label distribution protocol, that it offers to other network nodes and a corresponding label to use to identify these services(s). For example, a Targeted Label Distribution Protocol (tLDP) session may be established between a packet switching device and the application node providing these services to communicate the advertisement. Packets are encapsulated and sent from a service node (e.g., packet switching device) with the corresponding label to have one or more advertised services applied to the packet by an application node (e.g., a packet switching device and/or computing platform such as a Cisco ASR 1000).
摘要翻译： 应用程序节点使用其提供给其他网络节点的标签分发协议和用于标识这些服务的相应标签来通告服务。 例如，可以在分组交换设备和提供这些服务的应用节点之间建立目标标签分发协议（tLDP）会话来传送广告。 分组被封装并从具有对应标签的服务节点（例如，分组交换设备）发送，以使应用节点（例如，分组交换设备和/或计算平台，例如， Cisco ASR 1000）。
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公开(公告)号：US20120082025A1
公开(公告)日：2012-04-05
申请号：US13315948
申请日：2011-12-09
申请人： Jim Guichard , Luca Martini , Keyur Patel , Thomas David Nadeau
发明人： Jim Guichard , Luca Martini , Keyur Patel , Thomas David Nadeau
IPC分类号： H04L12/26
CPC分类号： H04L45/04 , H04L1/22 , H04L45/22 , H04L45/28 , H04L45/42 , H04L45/44 , H04L45/50 , H04L45/68
摘要： The protection of multi-segment pseudowires by utilizing backup paths is disclosed herein. Disclosed embodiments include methods that establish at least one backup path for multi-segment pseudowires, the establishing being performed prior to detection of failure in the primary path. Upon detecting a path failure, the detected failure is signaled to the head-end, a backup path is chosen, and reachability information associated with the chosen backup path is signaled across the backup path before reverse traffic is switched to the backup path. In other disclosed embodiments, apparatus are configured to establish, prior to detection of failure in the primary path, at least one backup path for the multi-segment pseudowire.
摘要翻译： 本文公开了通过利用备用路径保护多段伪线。 公开的实施例包括为多段伪线建立至少一个备用路径的方法，该建立是在检测到主路径中的故障之前执行的。 在检测到路径故障时，将检测到的故障信号发送到前端，选择备份路径，并且在将反向流量切换到备份路径之前通过备份路径发信号通知所选备份路径的可达性信息。 在其他公开的实施例中，设备被配置为在检测到主路径中的故障之前建立用于多段伪线的至少一个备用路径。
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公开(公告)号：US20120033663A1
公开(公告)日：2012-02-09
申请号：US12850841
申请日：2010-08-05
IPC分类号： H04L12/56
CPC分类号： H04L45/02 , H04L12/4633 , H04L45/306 , H04L45/507
摘要： An application node advertises service(s), using a routing protocol, that it offers to other network nodes. For example, the routing protocol used to advertise service(s) in a Service Provider Network is typically an link-state, Interior Gateway Protocol (IGP), such as, but not limited to, Intermediate System to Intermediate System (IS-IS) or Open Shortest Path First (OSPF). Packets are encapsulated and sent from a service node (e.g., packet switching device) using one or more advertised services applied to a packet by an application node (e.g., a packet switching device and/or computing platform such as a Cisco ASR 1000).
摘要翻译： 应用程序节点使用其提供给其他网络节点的路由协议来通告服务。 例如，用于在服务提供商网络中通告服务的路由协议通常是链路状态内部网关协议（IGP），例如但不限于中间系统到中间系统（IS-IS） 或开放最短路径优先（OSPF）。 使用由应用节点（例如，分组交换设备和/或诸如Cisco ASR 1000的计算平台）应用于分组的一个或多个通告的服务，将分组封装并从服务节点（例如，分组交换设备）发送。
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公开(公告)号：US08009558B2
公开(公告)日：2011-08-30
申请号：US11786506
申请日：2007-04-12
申请人： David D. Ward , Luca Martini , Jim Guichard
发明人： David D. Ward , Luca Martini , Jim Guichard
IPC分类号： G01R31/08 , G06F15/16 , G06F15/173
CPC分类号： H04L45/24 , H04L41/0668 , H04L45/10 , H04L45/28 , H04L45/68 , H04L47/10 , H04L47/125 , H04L47/26
摘要： In one embodiment, a communications distribution process maintains at least two pseudowires through a network such that the pseudowires share a burden of delivering data through the network. The communications distribution process receives feedback data concerning operation of each pseudowire. The communications distribution process utilizes the feedback data to distribute communications to the common destination across each of the pseudowires. Additionally, the communications distribution process utilizes the feedback to establish at least one new pseudowire, in addition to the first pseudowire and the second pseudowire, for transmission of data traffic.
摘要翻译： 在一个实施例中，通信分发过程通过网络维持至少两个伪线，使得伪线共享通过网络传送数据的负担。 通信分配过程接收关于每个伪线的操作的反馈数据。 通信分配过程利用反馈数据将通信分配到每个伪线上的公共目的地。 此外，通信分配过程利用反馈来建立除了第一伪线和第二伪线之外的至少一个新的伪线，用于数据业务的传输。
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公开(公告)号：US20060090008A1
公开(公告)日：2006-04-27
申请号：US10970014
申请日：2004-10-21
IPC分类号： G06F15/16
CPC分类号： H04L12/4633
摘要： A method, apparatus and computer program product for routing data within a packet-switched network using a PW wherein the PW is terminated directly on the layer-3 routing device such that certain services and applications can be utilized is presented. The method, apparatus and computer program product receives an encapsulated layer-2 Protocol Data Unit (PDU) from a pseudowire emulating a service. The encapsulation is removed from the encapsulated layer-2 PDU and a layer-2 circuit associated with the pseudowire is terminated. The circuit is treated as an interface and the PDU is forwarded based on upper layer protocol information within the PDU.
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公开(公告)号：US09270575B2
公开(公告)日：2016-02-23
申请号：US14797377
申请日：2015-07-13
IPC分类号： H04L12/721 , H04L29/06 , H04L12/46
CPC分类号： H04L45/14 , H04L12/4633 , H04L63/0272
摘要： Packets are encapsulated and sent from a service node to an application node for applying one or more Layer-4 to Layer-7 services to the packets, with service-applied packets being returned to the service node. An identification of a virtual private network (VPN) may be carried within a request packet, encapsulating a particular packet, sent by a service node to an application node for applying a service to the particular packet; with the corresponding response packet sent to the service node including an identification of the VPN for use by the service node in forwarding the services-applied packet. Additionally, parameters may be included in a request packet to identify a particular service of a general service to be applied to a particular packet encapsulated in the request packet.
摘要翻译： 数据包被封装并从服务节点发送到应用节点，以将一个或多个第4层到第7层服务应用于数据包，并将服务应用的数据包返回给服务节点。 虚拟专用网（VPN）的标识可以在由服务节点发送的请求分组中包含的特定分组携带到应用节点，以将服务应用于特定分组; 其中发送到服务节点的相应响应分组包括VPN的标识，以供服务节点在转发服务应用分组时使用。 此外，可以在请求分组中包括参数以识别要应用于封装在请求分组中的特定分组的一般服务的特定服务。
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公开(公告)号：US09112723B2
公开(公告)日：2015-08-18
申请号：US12827157
申请日：2010-06-30
IPC分类号： H04L12/46
CPC分类号： H04L45/14 , H04L12/4633 , H04L63/0272
摘要： Packets are encapsulated and sent from a service node to an application node for applying one or more Layer-4 to Layer-7 services to the packets, with service-applied packets being returned to the service node. An identification of a virtual private network (VPN) may be carried within a request packet, encapsulating a particular packet, sent by a service node to an application node for applying a service to the particular packet; with the corresponding response packet sent to the service node including an identification of the VPN for use by the service node node in forwarding the services-applied packet. Additionally, parameters may be included in a request packet to identify a particular service of a general service to be applied to a particular packet encapsulated in the request packet.
摘要翻译： 数据包被封装并从服务节点发送到应用节点，以将一个或多个第4层到第7层服务应用于数据包，并将服务应用的数据包返回给服务节点。 虚拟专用网（VPN）的标识可以在由服务节点发送的请求分组中包含的特定分组携带到应用节点，以将服务应用于特定分组; 其中发送到服务节点的相应响应分组包括VPN的标识，以供服务节点节点在转发服务应用分组时使用。 此外，可以在请求分组中包括参数以识别要应用于封装在请求分组中的特定分组的一般服务的特定服务。
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公开(公告)号：US09049098B2
公开(公告)日：2015-06-02
申请号：US12850841
申请日：2010-08-05
IPC分类号： H04L12/751 , H04L12/723 , H04L12/725 , H04L12/46
CPC分类号： H04L45/02 , H04L12/4633 , H04L45/306 , H04L45/507
摘要： An application node advertises service(s), using a routing protocol, that it offers to other network nodes. For example, the routing protocol used to advertise service(s) in a Service Provider Network is typically an link-state, Interior Gateway Protocol (IGP), such as, but not limited to, Intermediate System to Intermediate System (IS-IS) or Open Shortest Path First (OSPF). Packets are encapsulated and sent from a service node (e.g., packet switching device) using one or more advertised services applied to a packet by an application node (e.g., a packet switching device and/or computing platform such as a Cisco ASR 1000).
摘要翻译： 应用程序节点使用其提供给其他网络节点的路由协议来通告服务。 例如，用于在服务提供商网络中通告服务的路由协议通常是链路状态内部网关协议（IGP），例如但不限于中间系统到中间系统（IS-IS） 或开放最短路径优先（OSPF）。 使用由应用节点（例如，分组交换设备和/或诸如Cisco ASR 1000的计算平台）应用于分组的一个或多个通告的服务，将分组封装并从服务节点（例如，分组交换设备）发送。
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39.发明授权公开(公告)号：US08520672B2
公开(公告)日：2013-08-27
申请号：US12846796
申请日：2010-07-29
申请人： Jim Guichard , David Delano Ward , Cedell Adam Alexander, Jr. , Brian Lance Hiltscher , Doron Oz
发明人： Jim Guichard , David Delano Ward , Cedell Adam Alexander, Jr. , Brian Lance Hiltscher , Doron Oz
IPC分类号： H04L12/56
CPC分类号： H04L43/028 , H04L49/35 , H04L67/327
摘要： Packets are encapsulated and sent from a service node (e.g., packet switching device) using one or more services applied to a packet by an application node (e.g., a packet switching device and/or computing platform such as a Cisco ASR 1000) to generate a result, which is used by the service node to process packets of a flow of packets to which the packet belonged. An example of a service applied to a packet is a classification service, such as, but not limited to, using deep packet inspection on the packet to identify a classification result. The service node can, for example, use this classification result to process other packets in a same packet flow, such that all packets of a flow do not need to be, nor typically are, sent to an application node for processing.
摘要翻译： 使用由应用节点（例如，分组交换设备和/或诸如Cisco ASR 1000的计算平台）应用于分组的一个或多个服务，从服务节点（例如，分组交换设备）封装并发送分组，以生成 这是由服务节点用于处理分组所属的分组流的分组的结果。 应用于分组的服务的示例是分类服务，诸如但不限于对分组进行深度分组检查以识别分类结果。 例如，服务节点可以使用该分类结果来处理相同分组流中的其他分组，使得流的所有分组不需要也不典型地被发送到应用节点进行处理。
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40.发明申请公开(公告)号：US20120026897A1
公开(公告)日：2012-02-02
申请号：US12846796
申请日：2010-07-29
申请人： Jim Guichard , David Delano Ward , Cedell Adam Alexander, JR. , Brian Lance Hiltscher , Doron Oz
发明人： Jim Guichard , David Delano Ward , Cedell Adam Alexander, JR. , Brian Lance Hiltscher , Doron Oz
IPC分类号： H04L12/26
CPC分类号： H04L43/028 , H04L49/35 , H04L67/327
摘要： Packets are encapsulated and sent from a service node (e.g., packet switching device) using one or more services applied to a packet by an application node (e.g., a packet switching device and/or computing platform such as a Cisco ASR 1000) to generate a result, which is used by the service node to process packets of a flow of packets to which the packet belonged. An example of a service applied to a packet is a classification service, such as, but not limited to, using deep packet inspection on the packet to identify a classification result. The service node can, for example, use this classification result to process other packets in a same packet flow, such that all packets of a flow do not need to be, nor typically are, sent to an application node for processing.
摘要翻译： 使用由应用节点（例如，分组交换设备和/或诸如Cisco ASR 1000的计算平台）应用于分组的一个或多个服务，从服务节点（例如，分组交换设备）封装并发送分组，以生成 这是由服务节点用于处理分组所属的分组流的分组的结果。 应用于分组的服务的示例是分类服务，诸如但不限于对分组进行深度分组检查以识别分类结果。 例如，服务节点可以使用该分类结果来处理相同分组流中的其他分组，使得流的所有分组不需要也不典型地被发送到应用节点进行处理。
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