公开(公告)号：US08208404B1

公开(公告)日：2012-06-26

申请号：US12610686

申请日：2009-11-02

Applicant: Bhupesh Kothari

Inventor： Bhupesh Kothari

IPC: H04L12/28 ,  H04L12/54 ,  H04J3/24

CPC classification number: H04L12/4633 ,  H04L45/02 ,  H04L45/54 ,  H04L45/68

Abstract: A method performed by a provider edge device in a multi-autonomous system (AS) includes receiving advertisements from other PEs of the multi-AS, where one or more of the advertisements includes a destination AS parameter that indicates a destination AS of the multi-AS; generating pseudo-wire (PW) tables based on the advertisements received from the other PEs; and establishing PWs with respect to the other PEs based on the PW tables.

Abstract translation: 由多自治系统（AS）中的提供商边缘设备执行的方法包括从多AS的其他PE接收广告，其中一个或多个广告包括指示多方AS的目的地AS的目的地AS参数， 如; 基于从其他PE收到的广告生成伪线（PW）表; 并根据PW表对其他PE建立PW。

公开(公告)号：US08144575B2

公开(公告)日：2012-03-27

申请号：US12495095

申请日：2009-06-30

Applicant: Bhupesh Kothari ,  Rahul Aggarwal

Inventor： Bhupesh Kothari ,  Rahul Aggarwal

IPC: G01R31/08

CPC classification number: H04L41/0663 ,  H04L12/4633 ,  H04L45/00 ,  H04L45/04 ,  H04L45/16 ,  H04L45/22 ,  H04L45/245 ,  H04L45/28 ,  H04L45/507 ,  H04L45/54 ,  H04L45/66 ,  H04L45/68

Abstract: A method performed by a provider edge device includes generating pseudo-wire tables based on virtual private local area network service advertisements from other provider edge devices, where the provider edge device services customer edge devices, and establishing pseudo-wires with respect to the other provider edge devices, based on the pseudo-wire tables, where the pseudo-wires include an active pseudo-wire and at least one standby pseudo-wire with respect to each of the other provider edge devices. The method also includes generating and advertising VPLS advertisement to the other provider edge devices, detecting a communication link failure associated with one of the customer edge devices in which the provider edge device services, and determining whether the at least one standby pseudo-wire needs to be utilized because of the communication link failure.

Abstract translation: 由提供商边缘设备执行的方法包括：基于来自其他提供商边缘设备的虚拟专用局域网服务广告生成伪线表，其中提供商边缘设备服务于客户边缘设备，以及针对另一个提供商建立伪线 基于伪线表，其中伪线包括相对于其他提供商边缘设备中的每一个的活动伪线和至少一个备用伪线。 该方法还包括向其他提供商边缘设备生成和广告VPLS广告，检测与提供者边缘设备服务的其中一个客户边缘设备相关联的通信链路故障，以及确定至少一个备用伪线需要 由于通信链路故障而被利用。

公开(公告)号：US08902730B2

公开(公告)日：2014-12-02

申请号：US13354136

申请日：2012-01-19

Applicant: Bhupesh Kothari ,  Rahul Aggarwal

Inventor： Bhupesh Kothari ,  Rahul Aggarwal

IPC: G01R31/08 ,  H04L12/721 ,  H04L12/761 ,  H04L12/703 ,  H04L12/701 ,  H04L12/46 ,  H04L12/723 ,  H04L12/709 ,  H04L12/707 ,  H04L12/741 ,  H04L12/24 ,  H04L12/715

CPC classification number: H04L41/0663 ,  H04L12/4633 ,  H04L45/00 ,  H04L45/04 ,  H04L45/16 ,  H04L45/22 ,  H04L45/245 ,  H04L45/28 ,  H04L45/507 ,  H04L45/54 ,  H04L45/66 ,  H04L45/68

Abstract: A method performed by a provider edge device includes generating pseudo-wire tables based on virtual private local area network service advertisements from other provider edge devices, where the provider edge device services customer edge devices, and establishing pseudo-wires with respect to the other provider edge devices, based on the pseudo-wire tables, where the pseudo-wires include an active pseudo-wire and at least one standby pseudo-wire with respect to each of the other provider edge devices. The method also includes generating and advertising VPLS advertisement to the other provider edge devices, detecting a communication link failure associated with one of the customer edge devices in which the provider edge device services, and determining whether the at least one standby pseudo-wire needs to be utilized because of the communication link failure.

Abstract translation: 由提供商边缘设备执行的方法包括：基于来自其他提供商边缘设备的虚拟专用局域网服务广告生成伪线表，其中提供商边缘设备服务于客户边缘设备，以及针对另一个提供商建立伪线 基于伪线表，其中伪线包括相对于其他提供商边缘设备中的每一个的活动伪线和至少一个备用伪线。 该方法还包括向其他提供商边缘设备生成和广告VPLS广告，检测与提供者边缘设备服务的其中一个客户边缘设备相关联的通信链路故障，以及确定至少一个备用伪线需要 由于通信链路故障而被利用。

公开(公告)号：US08665711B2

公开(公告)日：2014-03-04

申请号：US13563174

申请日：2012-07-31

Applicant: Bhupesh Kothari ,  Nischal Sheth

Inventor： Bhupesh Kothari ,  Nischal Sheth

IPC: G01R31/08 ,  G06F11/00

CPC classification number: H04L45/28 ,  H04L45/22 ,  H04L45/68

Abstract: A first network device creates a protection path to a second network device associated with a first service site, and creates a pseudowire between the first service site and a second service site via the first network device and the second network device. The first network device also detects a failure between the first network device and the first service site, and forwards traffic, provided by the pseudowire between the first service site and the second service site, via the protection path. The second network device uses the traffic on the protection path as a trigger to activate a link between the second network device and the first service site.

Abstract translation: 第一网络设备创建到与第一服务站点相关联的第二网络设备的保护路径，并且经由第一网络设备和第二网络设备在第一服务站点和第二服务站点之间创建伪线。 第一网络设备还检测第一网络设备和第一服务站点之间的故障，并且经由保护路径转发由第一服务站点和第二服务站点之间的伪线提供的流量。 第二网络设备使用保护路径上的流量作为触发来激活第二网络设备和第一服务站点之间的链路。

公开(公告)号：US08170033B1

公开(公告)日：2012-05-01

申请号：US12475026

申请日：2009-05-29

Applicant: Bhupesh Kothari ,  Rex Fernando

Inventor： Bhupesh Kothari ,  Rex Fernando

IPC: H04L12/28

CPC classification number: H04L12/4641 ,  H04L45/02 ,  H04L45/50 ,  H04L45/66

Abstract: A network device includes a control unit configured to execute an extended layer three (L3) routing protocol within a control plane of the network device. The extended L3 routing protocol is extended to process a routing protocol control message having a set of layer two (L2) identifiers of customer devices attached to an autonomous system (AS) and an indicator that specifies a Route Target associated with a Virtual Private Local Area Network Service (VPLS) domain within the AS. The routing protocol control message conforms to a message type of the L3 routing protocol to initiate a flush of the set of L2 identifiers.

Abstract translation: 网络设备包括被配置为在网络设备的控制平面内执行扩展三层（L3）路由协议的控制单元。 扩展的L3路由协议被扩展以处理具有连接到自治系统（AS）的客户设备的一组第二层（L2）标识符的路由协议控制消息，以及指定与虚拟私人本地区域相关联的路由目标的指示符 AS内的网络服务（VPLS）域。 路由协议控制消息符合L3路由协议的消息类型，以启动L2标识符集的刷新。

公开(公告)号：US08422514B1

公开(公告)日：2013-04-16

申请号：US12755990

申请日：2010-04-07

Applicant: Bhupesh Kothari ,  Nischal Sheth

Inventor： Bhupesh Kothari ,  Nischal Sheth

IPC: H04J3/16 ,  H04J3/22

CPC classification number: H04L12/4633

Abstract: In general, techniques are described for dynamically configuring cross-domain pseudowires (PWs). A network device positioned between a first domain and a second domain of a computer network may implement the techniques. The intermediate network device comprises at least one interface and an LDP module, a transformation module and a routing protocol module. The interface receives a label distribution protocol (LDP) message that includes data for configuring a cross-domain PW from a first provider edge (PE) device of the first domain. The LDP module parses the received LDP message to extract the cross-domain PW configuration data. The translation module transforms the extracted data to conform to routing protocol extensions for advertising the cross-domain PW configuration data. The routing protocol module forms a routing protocol message that includes the transformed data. The interface outputs the routing protocol message to the second intermediate device of the second domain to establish the cross-domain PW.

Abstract translation: 通常，描述了用于动态配置跨域伪线（PW）的技术。 位于计算机网络的第一域和第二域之间的网络设备可以实现这些技术。 中间网络设备包括至少一个接口和LDP模块，变换模块和路由协议模块。 该接口接收标签分发协议（LDP）消息，其中包含用于从第一域的第一供应商边缘（PE）设备配置跨域PW的数据。 LDP模块解析接收的LDP消息，提取跨域PW配置数据。 翻译模块将提取的数据转换为符合路由协议扩展，以广告跨域PW配置数据。 路由协议模块形成包括转换数据的路由协议消息。 接口将路由协议报文输出到第二域的第二中间设备，建立跨域PW。

公开(公告)号：US20120300620A1

公开(公告)日：2012-11-29

申请号：US13563174

申请日：2012-07-31

Applicant: Bhupesh Kothari ,  Nischal Sheth

Inventor： Bhupesh Kothari ,  Nischal Sheth

IPC: H04W24/00

CPC classification number: H04L45/28 ,  H04L45/22 ,  H04L45/68

Abstract: A first network device creates a protection path to a second network device associated with a first service site, and creates a pseudowire between the first service site and a second service site via the first network device and the second network device. The first network device also detects a failure between the first network device and the first service site, and forwards traffic, provided by the pseudowire between the first service site and the second service site, via the protection path. The second network device uses the traffic on the protection path as a trigger to activate a link between the second network device and the first service site.

Abstract translation: 第一网络设备创建到与第一服务站点相关联的第二网络设备的保护路径，并且经由第一网络设备和第二网络设备在第一服务站点和第二服务站点之间创建伪线。 第一网络设备还检测第一网络设备和第一服务站点之间的故障，并且经由保护路径转发由第一服务站点和第二服务站点之间的伪线提供的流量。 第二网络设备使用保护路径上的流量作为触发来激活第二网络设备和第一服务站点之间的链路。

公开(公告)号：US08259563B1

公开(公告)日：2012-09-04

申请号：US12565468

申请日：2009-09-23

Applicant: Bhupesh Kothari ,  Nischal Sheth

Inventor： Bhupesh Kothari ,  Nischal Sheth

IPC: G01R31/00

CPC classification number: H04L45/28 ,  H04L45/22 ,  H04L45/68

Abstract: A first network device creates a protection path to a second network device associated with a first service site, and creates a pseudowire between the first service site and a second service site via the first network device and the second network device. The first network device also detects a failure between the first network device and the first service site, and forwards traffic, provided by the pseudowire between the first service site and the second service site, via the protection path. The second network device uses the traffic on the protection path as a trigger to activate a link between the second network device and the first service site.

Abstract translation: 第一网络设备创建到与第一服务站点相关联的第二网络设备的保护路径，并且经由第一网络设备和第二网络设备在第一服务站点和第二服务站点之间创建伪线。 第一网络设备还检测第一网络设备和第一服务站点之间的故障，并且经由保护路径转发由第一服务站点和第二服务站点之间的伪线提供的流量。 第二网络设备使用保护路径上的流量作为触发来激活第二网络设备和第一服务站点之间的链路。

公开(公告)号：US20120113803A1

公开(公告)日：2012-05-10

申请号：US13354136

申请日：2012-01-19

Applicant: Bhupesh KOTHARI ,  Rahul AGGARWAL

Inventor： Bhupesh KOTHARI ,  Rahul AGGARWAL

IPC: H04L12/26

CPC classification number: H04L41/0663 ,  H04L12/4633 ,  H04L45/00 ,  H04L45/04 ,  H04L45/16 ,  H04L45/22 ,  H04L45/245 ,  H04L45/28 ,  H04L45/507 ,  H04L45/54 ,  H04L45/66 ,  H04L45/68

Abstract: A method performed by a provider edge device includes generating pseudo-wire tables based on virtual private local area network service advertisements from other provider edge devices, where the provider edge device services customer edge devices, and establishing pseudo-wires with respect to the other provider edge devices, based on the pseudo-wire tables, where the pseudo-wires include an active pseudo-wire and at least one standby pseudo-wire with respect to each of the other provider edge devices. The method also includes generating and advertising VPLS advertisement to the other provider edge devices, detecting a communication link failure associated with one of the customer edge devices in which the provider edge device services, and determining whether the at least one standby pseudo-wire needs to be utilized because of the communication link failure.

Abstract translation: 由提供商边缘设备执行的方法包括：基于来自其他提供商边缘设备的虚拟专用局域网服务广告生成伪线表，其中提供商边缘设备服务于客户边缘设备，以及针对另一个提供商建立伪线 基于伪线表，其中伪线包括相对于其他提供商边缘设备中的每一个的活动伪线和至少一个备用伪线。 该方法还包括向其他提供商边缘设备生成和广告VPLS广告，检测与提供者边缘设备服务的其中一个客户边缘设备相关联的通信链路故障，以及确定至少一个备用伪线需要 由于通信链路故障而被利用。

公开(公告)号：US20100329109A1

公开(公告)日：2010-12-30

申请号：US12495095

申请日：2009-06-30

Applicant: Bhupesh KOTHARI ,  Rahul Aggarwal

Inventor： Bhupesh KOTHARI ,  Rahul Aggarwal

IPC: H04J1/16

CPC classification number: H04L41/0663 ,  H04L12/4633 ,  H04L45/00 ,  H04L45/04 ,  H04L45/16 ,  H04L45/22 ,  H04L45/245 ,  H04L45/28 ,  H04L45/507 ,  H04L45/54 ,  H04L45/66 ,  H04L45/68

Abstract: A method performed by a provider edge device includes generating pseudo-wire tables based on virtual private local area network service advertisements from other provider edge devices, where the provider edge device services customer edge devices, and establishing pseudo-wires with respect to the other provider edge devices, based on the pseudo-wire tables, where the pseudo-wires include an active pseudo-wire and at least one standby pseudo-wire with respect to each of the other provider edge devices. The method also includes generating and advertising VPLS advertisement to the other provider edge devices, detecting a communication link failure associated with one of the customer edge devices in which the provider edge device services, and determining whether the at least one standby pseudo-wire needs to be utilized because of the communication link failure.

Abstract translation: 由提供商边缘设备执行的方法包括：基于来自其他提供商边缘设备的虚拟专用局域网服务广告生成伪线表，其中提供商边缘设备服务于客户边缘设备，以及针对另一个提供商建立伪线 基于伪线表，其中伪线包括相对于其他提供商边缘设备中的每一个的活动伪线和至少一个备用伪线。 该方法还包括向其他提供商边缘设备生成和广告VPLS广告，检测与提供者边缘设备服务的其中一个客户边缘设备相关联的通信链路故障，以及确定至少一个备用伪线需要 由于通信链路故障而被利用。