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1. 发明申请

US20070071035A1 LAC-based LFI support for tunneled PPP sessions 有权
标题翻译：基于LAC的LFI支持隧道PPP会话
公开(公告)号：US20070071035A1
公开(公告)日：2007-03-29
申请号：US11238527
申请日：2005-09-28
申请人： John Evans , William Townsley , Gary Harris , Jeffrrey Haag , John Bray
发明人： John Evans , William Townsley , Gary Harris , Jeffrrey Haag , John Bray
IPC分类号： H04J3/24
CPC分类号： H04L12/4633 , H04L69/14 , Y02D50/30
摘要： An embodiment may provide for link fragmentation and interleaving at an access device located between a point to point link and a tunneled connection. An embodiment may include a method of receiving frames through a tunnel from a network server, fragmenting at least some of the frames from the network server, and sending fragmented and unfragmented frames over a data link to an endpoint device. In some embodiments the frames may be multilink point to point protocol (MLPPP) frames. In yet another embodiment, the frames may be received through a layer two tunneling protocol (L2TP) tunnel. An embodiment may include scanning a frame for PPP options and removing options related to MLPPP negotiation and then forwarding the frame to a network server. An embodiment may comprise means capable of executing the embodiment method or may include instructions that when executed on a machine are capable of the embodiment method. An embodiment may include a device with a first port to send or receive fragmented frames to a data link, a second port to tunnel assembled frames to a network server through a packet network, and circuitry in communication with the first port and the second port, the circuitry to fragment link fragmentation frames to be sent through the first port, reassemble any fragmented frames received from the first port, and send or receive assembled frames through the second port.
摘要翻译：实施例可以在位于点对点链路和隧道连接之间的接入设备处提供链路分段和交织。一个实施例可以包括通过来自网络服务器的隧道接收帧的方法，从网络服务器分割至少一些帧，以及通过数据链路将分段和未分片的帧发送到端点设备。在一些实施例中，帧可以是多链路点对点协议（MLPPP）帧。在另一个实施例中，可以通过第二层隧道协议（L2TP）隧道来接收这些帧。一个实施例可以包括扫描PPP选项的帧并移除与MLPPP协商相关的选项，然后将帧转发到网络服务器。实施例可以包括能够执行实施例方法的装置，或者可以包括当在机器上执行时能够实施实施方式的指令。实施例可以包括具有用于向数据链路发送或接收分段帧的第一端口的设备，通过分组网络将组装好的帧传送到网络服务器的第二端口以及与第一端口和第二端口通信的电路，将通过第一端口发送的分段帧分段的电路进行分段，重新组合从第一端口接收的任何分段帧，并通过第二端口发送或接收组合帧。

2. 发明申请

US20060187855A1 Techniques for customer self-provisioning of edge nodes for a virtual private network 有权
标题翻译：用于虚拟专用网络的边缘节点的客户自供应技术
公开(公告)号：US20060187855A1
公开(公告)日：2006-08-24
申请号：US11143551
申请日：2005-06-02
申请人： Earl Booth , William Townsley , Greg Weber , Wei Luo
发明人： Earl Booth , William Townsley , Greg Weber , Wei Luo
IPC分类号： H04L12/28
CPC分类号： H04L41/0806 , H04L41/0213 , H04L41/0253 , H04L41/0866 , H04L41/0886
摘要： Techniques for configuring a particular network interface on a particular node at an edge of a provider network to support a particular virtual private network include receiving customer input data. The provider network is a packet-switched network and the particular virtual private network is a link layer virtual private network. The customer input data indicates a topology for customer equipment devices outside the provider network on the particular virtual private network, and may include properties for corresponding interfaces that connect the customer equipment devices to the edge nodes. Based on the customer input data, configuration data is determined for configuring the particular interface at the particular node. The particular node is caused to configure the particular interface based on the configuration data without human intervention. Among other effects, these techniques support zero-touch provisioning of virtual private networks.
摘要翻译：用于在供应商网络的边缘上的特定节点上配置特定网络接口以支持特定虚拟专用网络的技术包括接收客户输入数据。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。客户输入数据指示特定虚拟专用网络上的供应商网络之外的客户设备设备的拓扑，并且可以包括将客户设备设备连接到边缘节点的相应接口的属性。基于客户输入数据，确定配置数据以配置特定节点处的特定接口。使特定节点在没有人为干预的情况下根据配置数据配置特定接口。除此之外，这些技术支持虚拟专用网络的零接触配置。

3. 发明申请

US20070008982A1 Redundant pseudowires between Ethernet access domains 有权
标题翻译：以太网接入域之间冗余伪线
公开(公告)号：US20070008982A1
公开(公告)日：2007-01-11
申请号：US11178897
申请日：2005-07-11
申请人： Eric Voit , William Townsley
发明人： Eric Voit , William Townsley
IPC分类号： H04L12/56 , H04L12/66
CPC分类号： H04L12/462
摘要： A computer network includes first and second Ethernet access domain networks, each of Ethernet access domain networks including a user-facing provider edge (u-PE) device, and a stack group of network-facing provider edge (n-PE) devices coupled with the u-PE device, the n-PE devices running a bidding protocol to select one of the n-PE devices as a primary n-PE device for a single pseudowire connection path between the first and second Ethernet access domain networks. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).
摘要翻译：计算机网络包括第一和第二以太网接入域网络，每个以太网接入域网络包括面向用户的提供商边缘（u-PE）设备和与网络面向提供商边缘（n-PE）设备耦合的堆叠组 u-PE设备，n-PE设备运行出价协议，以选择其中一个n-PE设备作为第一和第二以太网接入域网络之间的单个伪线连接路径的主要n-PE设备。要强调的是，该摘要被提供以符合要求抽象的规则，允许搜索者或其他读者快速确定技术公开内容的主题。提交它的理解是，它不会用于解释或限制权利要求的范围或含义。 37 CFR 1.72（b）。

4. 发明授权

US08782256B2 Deterministic session load-balancing and redundancy of access servers in a computer network 有权
标题翻译：计算机网络中访问服务器的确定性会话负载平衡和冗余
公开(公告)号：US08782256B2
公开(公告)日：2014-07-15
申请号：US12323805
申请日：2008-11-26
申请人： Wojciech Dec , William Townsley , Francois Le Faucheur
发明人： Wojciech Dec , William Townsley , Francois Le Faucheur
IPC分类号： G06F15/173
CPC分类号： H04L67/1002 , H04L41/0806 , H04L67/1027 , H04L67/125
摘要： In one embodiment, for each port of an access node in an access-based computer network, one access server of a plurality of access servers is configured as a preferred access server for that port. Upon receiving a session initiation message at a particular port, the access node forwards the session initiation message to one or more of the access servers based on the configured preferred access server for the particular port.
摘要翻译：在一个实施例中，对于基于访问的计算机网络中的接入节点的每个端口，多个接入服务器中的一个接入服务器被配置为该端口的优选接入服务器。在特定端口接收到会话发起消息时，接入节点基于针对特定端口的配置的优选接入服务器将会话发起消息转发到一个或多个接入服务器。

5. 发明申请

US20060187937A1 Techniques for oversubscribing edge nodes for virtual private networks 有权
标题翻译：用于虚拟专用网络超额订阅边缘节点的技术
公开(公告)号：US20060187937A1
公开(公告)日：2006-08-24
申请号：US11281269
申请日：2005-11-16
申请人： William Townsley , Earl Booth
发明人： William Townsley , Earl Booth
IPC分类号： H04J3/16 , H04L12/56 , H04L12/28 , H04J3/22
CPC分类号： H04L12/4641 , H04L12/4633 , H04L41/0631 , H04L41/0886 , H04L41/0896 , H04L43/0876
摘要： Techniques for operating a network interface include automatically determining whether communications are terminated over a particular attachment circuit on a network interface on an intermediate network node at an edge of a provider network, whereby a sign of death (SOD) on the particular attachment circuit is indicated. The attachment circuit is switched with a particular virtual private network that is a link layer virtual private network (VPN) encapsulated in a higher layer protocol. The provider network is a packet-switched network. The network interface is for a direct communication link to a customer network node outside the provider network. If it is determined that there is an indication of the SOD, then a new network action is initiated in response to the SOD on the particular attachment circuit. These techniques allow for automatic logging of usage, billing, and fault detection, as well as for over-subscription of network resources for multiple VPNs.
摘要翻译：用于操作网络接口的技术包括自动确定在提供商网络的边缘处的中间网络节点上的网络接口上的特定附件电路上是否终止通信，从而指示特定附接电路上的死亡符号（SOD）。附件电路是以封装在更高层协议中的链路层虚拟专用网（VPN）的特定虚拟专用网络来切换的。提供商网络是分组交换网络。网络接口用于与供应商网络之外的客户网络节点的直接通信链路。如果确定存在SOD的指示，则响应于特定附接电路上的SOD启动新的网络动作。这些技术允许自动记录使用，计费和故障检测，以及多个VPN的网络资源的超额订阅。

6. 发明申请

US20060187856A1 Techniques for using first sign of life at edge nodes for a virtual private network 有权
标题翻译：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：US20060187856A1
公开(公告)日：2006-08-24
申请号：US11145752
申请日：2005-06-06
申请人： Earl Booth , William Townsley , Wei Luo , George Wilkie
发明人： Earl Booth , William Townsley , Wei Luo , George Wilkie
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。

7. 发明申请

US20070204330A1 Techniques for authenticating a subscriber for an access network using DHCP 有权
标题翻译：使用DHCP验证访问网络的用户的技术
公开(公告)号：US20070204330A1
公开(公告)日：2007-08-30
申请号：US11362296
申请日：2006-02-24
申请人： William Townsley , Ralph Droms , Wojciech Dec
发明人： William Townsley , Ralph Droms , Wojciech Dec
IPC分类号： H04L9/32
CPC分类号： H04L61/2015 , H04L9/321 , H04L9/3226 , H04L9/3271 , H04L63/083 , H04L63/0892 , H04L63/162 , H04L2209/56
摘要： Techniques for authenticating a user for access to an IP network include receiving from the user's host a DHCP request which includes user identifier data. A random challenge value is determined and sent to the user's host in a DHCP message format. A response message that includes a response value is received from the user's host in DHCP format. A verification value is determined based on a password value associated with the user identifier value in an AAA server and the current challenge value using a secure process that renders impractical an attempt to derive the password. If it is determined that the response value does not match the verification value, then a DHCP offer is prevented from being sent to the user's host in response to the DHCP request. Thus, a user is authenticated using DHCP instead of PPP.
摘要翻译：用于验证用户访问IP网络的技术包括从用户的主机接收包括用户标识符数据的DHCP请求。确定随机挑战值，并以DHCP消息格式发送给用户的主机。包含响应值的响应消息以DHCP格式从用户主机接收。基于与AAA服务器中的用户标识符值相关联的密码值和使用不切实际的尝试导出密码的安全过程来确定当前挑战值的验证值。如果确定响应值与验证值不匹配，则可以防止响应于DHCP请求向DHCP用户的主机发送DHCP报文。因此，使用DHCP而不是PPP进行身份验证。

8. 发明申请

US20070203990A1 Techniques for establishing subscriber sessions on an access network using DHCP 有权
标题翻译：使用DHCP在接入网络上建立用户会话的技术
公开(公告)号：US20070203990A1
公开(公告)日：2007-08-30
申请号：US11362703
申请日：2006-02-25
申请人： William Townsley , Richard Pruss , Ralph Droms
发明人： William Townsley , Richard Pruss , Ralph Droms
IPC分类号： G06F15/16
CPC分类号： H04L61/2015 , H04L9/321 , H04L9/3226 , H04L9/3271 , H04L63/083 , H04L63/0892 , H04L63/162 , H04L2209/56
摘要： Techniques for supporting subscriber sessions for access to an IP network include receiving from a first node at a different second node, a Dynamic Host Configuration Protocol (DHCP) formatted echo-request message. The echo-request message includes a DHCP option field that holds data that indicates an echo-request type. In response to receiving the echo-request message, the second node sends to the first node a DHCP formatted echo-reply message that corresponds to the echo-request message. The echo-reply message includes a DHCP option field that holds data that indicates an echo-reply type. When received by the first node, the echo-response message causes the first node to determine a connected state with the second node. Point to Point Protocol (PPP) keep-alive messages between a customer premises node and a remote access server gateway to an IP network may be replaced by these DHCP echo-request and echo-reply messages.
摘要翻译：用于支持用户会话以访问IP网络的技术包括从不同的第二节点的第一节点接收动态主机配置协议（DHCP）格式的回送请求消息。回应请求消息包括保存指示回显请求类型的数据的DHCP选项字段。响应于接收到回波请求消息，第二节点向第一节点发送对应于回显请求消息的DHCP格式的回应应答消息。回应应答消息包括保存指示回显应答类型的数据的DHCP选项字段。当由第一节点接收时，回波响应消息使得第一节点确定与第二节点的连接状态。客户端节点和到IP网络的远程访问服务器网关之间的点对点协议（PPP）保持活动消息可以被这些DHCP回显请求和回应回复消息所取代。

9. 发明申请

US20060187854A1 Techniques for zero touch provisioning of edge nodes for a virtual private network by pushing configuration from a server 有权
标题翻译：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：US20060187854A1
公开(公告)日：2006-08-24
申请号：US11143546
申请日：2005-06-02
申请人： Earl Booth , William Townsley , Greg Weber , Wei Luo
发明人： Earl Booth , William Townsley , Greg Weber , Wei Luo
IPC分类号： H04L12/28 , H04L12/66 , H04L12/56
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。

10. 发明申请

US20060168270A1 Techniques for migrating a point to point protocol to a protocol for an access network 有权
公开(公告)号：US20060168270A1
公开(公告)日：2006-07-27
申请号：US11043636
申请日：2005-01-26
申请人： William Townsley , Huw Jones , Vincent Mammoliti
发明人： William Townsley , Huw Jones , Vincent Mammoliti
IPC分类号： G06F15/16
CPC分类号： H04L69/168 , H04L69/03 , H04L69/16 , H04L69/324
摘要： Techniques for exchanging point to point protocol (PPP) information among network nodes using an arbitrary network protocol include determining whether a PPP payload includes PPP control data. If so, then an outbound protocol frame is generated with the PPP control data in a payload and with an outbound protocol type field that indicates PPP control data. The outbound protocol frame is sent to a server which uses the PPP control data. The outbound protocol is different from PPP and from PPP over Ethernet (PPPoE) and from PPP over Asynchronous Transfer Mode (ATM) protocol (PPPoA). The outbound protocol may be Ethernet or ATM Adaptation Layer (AAL) or some other protocol. These techniques allow PPP control plane functionality while utilizing IP over Ethernet for the data plane.

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