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公开(公告)号：US08838829B2
公开(公告)日：2014-09-16
申请号：US11178647
申请日：2005-07-11
IPC分类号： G06F15/16 , G06F15/173 , H04L12/751 , H04L12/721
摘要： A method and apparatus for providing information in a network by way of a Pseudowire switching TLV is presented. A second device in the network receives a first message having information relating to a first device in the network. The second device appends information relating to the second device (by way of a Pseudowire switching TLV) to the first message, resulting in a second message. The second message is then forwarded to a third device in the network.
摘要翻译： 提出了一种通过伪线切换TLV在网络中提供信息的方法和装置。 网络中的第二设备接收具有与网络中的第一设备有关的信息的第一消息。 第二设备将与第二设备相关的信息（通过伪线切换TLV）附加到第一消息，导致第二消息。 然后将第二个消息转发到网络中的第三个设备。
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公开(公告)号：US20090185573A1
公开(公告)日：2009-07-23
申请号：US12415396
申请日：2009-03-31
申请人： James N. Guichard , Mohammed Sayeed , Bertrand Duvivier , Daniel Tappan , W. Scott Wainner , Earl Hardin Booth, III , Christopher Metz , W. Mark Townsley , Wojciech Dec
发明人： James N. Guichard , Mohammed Sayeed , Bertrand Duvivier , Daniel Tappan , W. Scott Wainner , Earl Hardin Booth, III , Christopher Metz , W. Mark Townsley , Wojciech Dec
IPC分类号： H04L12/56
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.
摘要翻译： 一种用于使用PW在分组交换网络内路由数据的方法，装置和计算机程序产品，其中PW直接终止在第3层路由设备上，使得可以利用某些服务和应用。 方法，装置和计算机程序产品从模拟服务的伪线接收封装的第二层协议数据单元（PDU）。 从封装层2 PDU去除封装，并终止与伪线相关联的二层电路。 该电路被视为一个接口，并且基于PDU内的上层协议信息转发PDU。
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公开(公告)号：US07593398B2
公开(公告)日：2009-09-22
申请号：US11221964
申请日：2005-09-08
CPC分类号： H04L12/4633 , H04J3/16
摘要： A method and apparatus for performing Layer 2 (L2) interworking is presented. A L2 Protocol Data Unit (PDU) is received at an L2 Switching Entity (SE). The L2 PDU is converted to a normalized Pseudowire (PW) PDU. The normalized PW PDU is then forwarded to a Layer 3 (L3) Routing Entity (RE). The normalized PDU may be in the form of a predetermined L2 protocol or a L2 agnostic protocol.
摘要翻译： 提出了一种用于执行第2层（L2）互通的方法和装置。 在L2交换实体（SE）处接收到L2协议数据单元（PDU）。 L2 PDU被转换成归一化的伪线（PW）PDU。 归一化的PW PDU然后被转发到第3层（L3）路由实体（RE）。 归一化PDU可以是预定的L2协议或L2不可知协议的形式。
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公开(公告)号：US07516224B2
公开(公告)日：2009-04-07
申请号：US10970014
申请日：2004-10-21
申请人： James N. Guichard , Mohammed Sayeed , Bertrand Duvivier , Daniel Tappan , W. Scott Wainner , Earl Hardin Booth, III , Christopher Metz , W. Mark Townsley , Wojciech Dec
发明人： James N. Guichard , Mohammed Sayeed , Bertrand Duvivier , Daniel Tappan , W. Scott Wainner , Earl Hardin Booth, III , Christopher Metz , W. Mark Townsley , Wojciech Dec
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.
摘要翻译： 一种用于使用PW在分组交换网络内路由数据的方法，装置和计算机程序产品，其中PW直接终止在第3层路由设备上，使得可以利用某些服务和应用。 方法，装置和计算机程序产品从模拟服务的伪线接收封装的第二层协议数据单元（PDU）。 从封装层2 PDU去除封装，并终止与伪线相关联的二层电路。 该电路被视为一个接口，并且基于PDU内的上层协议信息转发PDU。
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公开(公告)号：US07773611B2
公开(公告)日：2010-08-10
申请号：US11153649
申请日：2005-06-15
IPC分类号： H04L12/28
CPC分类号： H04L43/0829 , H04L41/5003 , H04L41/5009 , H04L41/5035 , H04L43/0811 , H04L43/0888 , H04L43/10 , H04L43/16
摘要： Conventional network packet traffic loss/drop monitoring mechanisms, such as that employed for pseudowire, IP flow and tunnel traffic monitoring, do not process or diagnose the aggregate counts from both endpoints of a particular pseudowire. A packet loss and detection mechanism periodically exchanges traffic packet counts to maintain an accurate diagnosis of the pseudowire health from either endpoint. Further, the raw packet counts are analyzed to identify misrouted and lost packets, as both should be considered to assess network health and congestion. The pseudowire statistics are maintained for each pseudowire emanating from a particular edge router, providing a complete view of pseudowire traffic affecting a particular edge router. Such statistics are beneficial for problem detection, diagnosis, and for verification of throughput criteria such as those expressed in Quality of Service (QOS) terms and/or SLAs (service level agreements).
摘要翻译： 传统的网络数据包流量丢失/丢弃监视机制，例如用于伪线，IP流和隧道流量监控的网络数据包流量丢失/丢弃监视机制不会从特定伪线的两个端点处理或诊断聚合计数。 分组丢失和检测机制周期性地交换业务分组计数，以保持来自任一端点的伪线性健康的准确诊断。 此外，原始数据包计数被分析以识别错误路由和丢失的分组，因为两者都应该被考虑来评估网络健康和拥塞。 对于从特定边缘路由器发出的每个伪线，维持伪线统计，提供影响特定边缘路由器的伪线路的完整视图。 这些统计数据有助于问题检测，诊断和验证吞吐量标准，例如在服务质量（QOS）术语和/或SLA（服务级别协议）中表达的标准。
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公开(公告)号：US08171494B2
公开(公告)日：2012-05-01
申请号：US11951161
申请日：2007-12-05
IPC分类号： G06F13/00
CPC分类号： G06F13/387
摘要： In an example embodiment, a method is provided to receive a request message. A client that transmitted the request message then is identified. Here, the client is associated with a client identifier. The client identifier is inserted into a response message, and this response message includes a redirect to a portal. The response message then is transmitted.
摘要翻译： 在示例实施例中，提供了一种接收请求消息的方法。 然后识别发送请求消息的客户端。 这里，客户端与客户端标识符相关联。 将客户端标识符插入到响应消息中，并且该响应消息包括到门户的重定向。 然后发送响应消息。
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7.发明授权Techniques for zero touch provisioning of edge nodes for a virtual private network 有权用于虚拟专用网络的边缘节点零触发配置的技术公开(公告)号：US07535856B2
公开(公告)日：2009-05-19
申请号：US11142768
申请日：2005-06-01
IPC分类号： H04L12/28
CPC分类号： H04L41/0886 , H04L12/4641 , H04L12/4691 , H04L41/0806 , H04L41/0866 , H04L63/0272
摘要： A method and apparatus for configuring a network interface to support a virtual private network includes storing configuration data at a server on a host computer on the provider network. It is determined whether conditions are satisfied for sending the configuration data to a particular node at an edge of the provider network. If it is determined that conditions are satisfied, then the configuration data is sent to the particular node to cause the particular node to configure a particular interface for supporting a virtual private network over the provider network based on the configuration data without human intervention. The provider network is a packet-switched network and the particular virtual private network is a link layer virtual private network. The particular node is different from the host. The particular interface is for a direct communication link to a customer network node outside the provider network.
摘要翻译： 用于配置网络接口以支持虚拟专用网络的方法和装置包括在提供商网络上的主计算机上的服务器上存储配置数据。 确定是否满足条件以将配置数据发送到提供商网络边缘的特定节点。 如果确定满足条件，则将配置数据发送到特定节点，以使特定节点基于配置数据配置用于在提供商网络上支持虚拟专用网络的特定接口，而无需人为干预。 提供商网络是分组交换网络，特定的虚拟专用网络是链路层虚拟专用网络。 特定节点与主机不同。 该特定接口用于与提供者网络之外的客户网络节点的直接通信链路。
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公开(公告)号：US06915436B1
公开(公告)日：2005-07-05
申请号：US09630779
申请日：2000-08-02
申请人： Earl Hardin Booth, III , Charles Steven Lingafelt , Phuong Thanh Nguyen , Leo Temoshenko , Xiaogang Wang
发明人： Earl Hardin Booth, III , Charles Steven Lingafelt , Phuong Thanh Nguyen , Leo Temoshenko , Xiaogang Wang
CPC分类号： H04L63/1433 , G06F21/42 , H04L41/0213 , H04L43/50 , H04L69/14
摘要： A method and system for verifying the availability of a back-up virtual private network IP security (IPSec) tunnel between two network elements by originating a plurality of connection tests between the network elements. The first network element transmits a backup tunnel verification test message to the second network element over the back-up secure tunnel upon receipt of a backup tunnel verification test command. The back-up secure tunnel includes two unidirectional tunnels. The second network element receives the back-up tunnel verification test message over the first back-up unidirectional secure tunnel and transmits a response back to the first network element over the second back-up unidirectional secure tunnel. The number of failures to respond by the second network element to the backup tunnel verification tests performed during an active verification period specified in the backup tunnel verification test command are reported back to the source that initiated the back-up secure tunnel verification test.
摘要翻译： 一种用于通过发起网络元件之间的多个连接测试来验证两个网络元件之间的后备虚拟专用网络IP安全（IPSec）隧道的可用性的方法和系统。 第一网络元件在接收到备份隧道验证测试命令时，通过备份安全隧道将备份隧道验证测试消息发送到第二网元。 备用安全隧道包括两个单向隧道。 第二网元通过第一备用单向安全隧道接收备用隧道验证测试消息，并通过第二备份单向安全隧道将响应发送回第一网元。 在备份隧道验证测试命令中指定的活动验证周期期间，由第二网络元件响应的备份隧道验证测试失败次数被报告回发起后台安全隧道验证测试的源。
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9.发明授权Techniques for using first sign of life at edge nodes for a virtual private network 有权在边缘节点使用虚拟专用网络的第一生命符号的技术公开(公告)号：US07769037B2
公开(公告)日：2010-08-03
申请号：US11145752
申请日：2005-06-06
IPC分类号： H04L12/28
CPC分类号： H04L12/4641
摘要： A method and apparatus for processing a signal on an intermediate network node at an edge of a provider packet-switched network to support a link-layer virtual private network includes receiving a signal on a particular interface. The particular interface is for a direct communication link to a customer network node outside the provider network. It is determined whether the signal indicates that the particular interface is changing from an inactive state to an active state, whereby the signal is called first sign of life (FSOL). If it is determined that the signal is FSOL, then configuration data is determined for configuring the particular interface for the particular virtual private network. The signal is processed based on the configuration data. These techniques allow a dynamic response to new signals on a customer interface without human intervention by the provider.
摘要翻译： 一种用于在提供商分组交换网络的边缘处的中间网络节点上处理信号以支持链路层虚拟专用网络的方法和装置包括在特定接口上接收信号。 该特定接口用于与提供者网络之外的客户网络节点的直接通信链路。 确定信号是否指示特定接口从非活动状态改变为活动状态，由此该信号被称为生命的第一标志（FSOL）。 如果确定信号为FSOL，则确定配置数据以配置特定虚拟专用网络的特定接口。 信号根据配置数据进行处理。 这些技术允许在客户界面上对新信号进行动态响应，而不需要提供商的人为干预。
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10.发明授权Techniques for zero touch provisioning of edge nodes for a virtual private network by pushing configuration from a server 有权通过从服务器推送配置来为虚拟专用网络的边缘节点进行零触摸配置的技术公开(公告)号：US07420933B2
公开(公告)日：2008-09-02
申请号：US11143546
申请日：2005-06-02
CPC分类号： H04L41/08 , H04L12/4641 , H04L12/4691 , H04L41/0806 , H04L41/0843 , H04L41/0889 , H04L43/0811
摘要： A method and apparatus for configuring a network interface to support a virtual private network includes storing configuration data at a server on a host computer on the provider network. It is determined without human intervention whether conditions are satisfied for sending the configuration data to a particular node at an edge of the provider network without receiving a request message from the particular node. If it is determined that conditions are satisfied, then the configuration data is sent to the particular node to cause the particular node to configure a particular interface for supporting a virtual private network over the provider network based on the configuration data. The particular node is different from the host. These techniques allow changes in configuration data to be pushed to provider edge nodes without human intervention.
摘要翻译： 用于配置网络接口以支持虚拟专用网络的方法和装置包括在提供商网络上的主计算机上的服务器上存储配置数据。 在没有人为干预的情况下确定是否满足条件以将配置数据发送到提供商网络的边缘处的特定节点，而不从特定节点接收到请求消息。 如果确定满足条件，则将配置数据发送到特定节点，以使特定节点基于配置数据配置用于通过提供商网络支持虚拟专用网络的特定接口。 特定节点与主机不同。 这些技术允许配置数据的更改被推送到提供商边缘节点，而无需人为干预。
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