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1. 发明授权

US07596313B1 Method and apparatus for processing protection switching mechanism in optical channel shared protection rings 有权
标题翻译：光通道共享保护环保护切换机制的处理方法及装置
公开(公告)号：US07596313B1
公开(公告)日：2009-09-29
申请号：US11866363
申请日：2007-10-02
申请人： Ravichandran Iyer , Manjunath Sampangi , Antonio Rodriguez-Moral , Paul Bonenfant , Xiaowen Mang , Leah Zhang
发明人： Ravichandran Iyer , Manjunath Sampangi , Antonio Rodriguez-Moral , Paul Bonenfant , Xiaowen Mang , Leah Zhang
IPC分类号： G02F1/00 , H04B10/00 , H04J14/00
CPC分类号： H04J3/085 , H04J14/0283 , H04J14/0295 , H04Q11/0062 , H04Q2011/0081
摘要： A method for merging protection switching messages in an optical network enables a control of the amount of message bandwidth used for sending protection switching messages. A method for performing protection switching in an optical network does so in an optimal manner by performing the protection switching actions in the various nodes of a protection path in parallel rather than in sequence. To do so, a channel failure message is transmitted from an end node A in the optical network upon detecting a failure in a link in the optical network that includes the end node A. If a failure can be detected at both end nodes, the channel failure messages are transmitted from both end nodes the moment they detect failure without any further waiting. Upon receiving the first channel failure message regardless its originating end node, switching actions in intermediate nodes are initiated. The channel failure messages are forwarded from the intermediate nodes to their corresponding next nodes before completing switching actions in the intermediate nodes. When receiving channel failure response messages, these messages are forwarded to a next node from the intermediate node only after switching actions are complete in the intermediate node.
摘要翻译：在光网络中合并保护倒换消息的方法能够控制用于发送保护倒换消息的消息带宽量。用于在光网络中进行保护切换的方法通过以并行方式而不是依次执行保护路径的各个节点中的保护切换动作，以最佳方式进行。为此，在检测到包括终端节点A的光网络中的链路中的故障时，从光网络中的端节点A发送信道失败消息。如果可以在两端节点检测到故障，则信道故障消息从两端节点发送，无需进一步等待即可发现故障。在接收到第一信道故障消息而不管其始发端节点时，中间节点中的切换动作被启动。在完成中间节点之间的切换动作之前，将信道故障消息从中间节点转发到其对应的下一个节点。当接收到信道故障响应消息时，只有在中间节点中的交换动作完成后，才将这些消息从中间节点转发到下一个节点。

2. 发明授权

US07277631B1 Method and apparatus for processing protection switching mechanism in optical channel shared protection rings 失效
标题翻译：光通道共享保护环保护切换机制的处理方法及装置
公开(公告)号：US07277631B1
公开(公告)日：2007-10-02
申请号：US10200066
申请日：2002-07-19
申请人： Ravichandran Iyer , Manjunath Sampangi , Antonio Rodriguez-Moral , Paul Bonenfant , Xiaowen Mang , Leah Zhang
发明人： Ravichandran Iyer , Manjunath Sampangi , Antonio Rodriguez-Moral , Paul Bonenfant , Xiaowen Mang , Leah Zhang
IPC分类号： H04B10/00
CPC分类号： H04J3/085 , H04J14/0283 , H04J14/0295 , H04Q11/0062 , H04Q2011/0081
摘要： A method for merging protection switching messages in an optical network enables a control of the amount of message bandwidth used for sending protection switching messages. A method for performing protection switching in an optical network does so in an optimal manner by performing the protection switching actions in the various nodes of a protection path in parallel rather than in sequence. To do so, a channel failure message is transmitted from an end node A in the optical network upon detecting a failure in a link in the optical network that includes the end node A. If a failure can be detected at both end nodes, the channel failure messages are transmitted from both end nodes the moment they detect failure without any further waiting. Upon receiving the first channel failure message regardless its originating end node, switching actions in intermediate nodes are initiated. The channel failure messages are forwarded from the intermediate nodes to their corresponding next nodes before completing switching actions in the intermediate nodes. When receiving channel failure response messages, these messages are forwarded to a next node from the intermediate node only after switching actions are complete in the intermediate node.
摘要翻译：在光网络中合并保护倒换消息的方法能够控制用于发送保护倒换消息的消息带宽量。用于在光网络中进行保护切换的方法通过以并行方式而不是依次执行保护路径的各个节点中的保护切换动作，以最佳方式进行。为此，在检测到包括终端节点A的光网络中的链路中的故障时，从光网络中的端节点A发送信道失败消息。如果可以在两端节点检测到故障，则信道故障消息从两端节点发送，无需进一步等待即可发现故障。在接收到第一信道故障消息而不管其始发端节点时，中间节点中的切换动作被启动。在完成中间节点之间的切换动作之前，将信道故障消息从中间节点转发到其对应的下一个节点。当接收到信道故障响应消息时，只有在中间节点中的交换动作完成后，才将这些消息从中间节点转发到下一个节点。

3. 发明申请

US20070124497A1 Method for verifying newly provisioned customer network route advertisements 有权
标题翻译：验证新提供的客户网络路由广告的方法
公开(公告)号：US20070124497A1
公开(公告)日：2007-05-31
申请号：US11699118
申请日：2007-01-29
申请人： Kevin D'Souza , Han Nguyen , Leah Zhang
发明人： Kevin D'Souza , Han Nguyen , Leah Zhang
IPC分类号： G06F15/173
CPC分类号： H04L45/021 , H04L45/02 , H04L45/04
摘要： Route advertisement requests made by a customer are received at route provisioning center (20) to effect either advertisement of a newly provisioned route or withdrawal of an existing route. In the case of a request to advertise a newly provisioned route, the request is subjected to validation, and if unable to be validated, the request is rejected. Upon validation of a new route advertisement, or following receipt of a request to withdraw an existing route advertisement, the customer-entered request is entered into an official routing database (26) for subsequent propagation to network access providers (14, 16 and 18). Periodically, a check is made to verify that the customer-entered request remains active.
摘要翻译：在路由配置中心（20）处接收到客户做出的路由广播请求，以实现新提供的路由的广告或现有路由的撤销。在要求广告新配置的路由的情况下，请求被验证，并且如果不能被验证，则该请求被拒绝。在验证新的路线广告之后，或在接收到撤回现有路线广告的请求之后，客户输入的请求被输入到官方路由数据库（26）中，以便随后传播到网络接入提供商（14,16和18）。定期检查以确认客户输入的请求是否保持活动。

4. 发明授权

US07774500B1 Method and apparatus for flexible network management of multiple customer virtual private networks 失效
标题翻译：多个客户虚拟专用网络的灵活网络管理方法和装置
公开(公告)号：US07774500B1
公开(公告)日：2010-08-10
申请号：US10940548
申请日：2004-09-14
申请人： Kevin D'Souza , Leah Zhang
发明人： Kevin D'Souza , Leah Zhang
IPC分类号： G06F15/173
CPC分类号： H04L41/5064
摘要： The invention comprises a method and apparatus for deriving at least one router configuration of at least one datacenter edge router and at least one provider edge router to support at least one datacenter managing at least one customer virtual private network. Specifically, the method comprises assigning at least one datacenter profile to the at least one datacenter, and assigning a datacenter profile route-target to the at least one datacenter profile.
摘要翻译：本发明包括用于导出至少一个数据中心边缘路由器和至少一个提供商边缘路由器的至少一个路由器配置的方法和装置，以支持管理至少一个客户虚拟专用网络的至少一个数据中心。具体地说，该方法包括将至少一个数据中心配置文件分配给至少一个数据中心，以及将数据中心配置文件路由目标分配给至少一个数据中心配置文件。

5. 发明申请

US20100097943A1 METHOD AND APPARATUS FOR PERFORMING REACHABILITY TESTING WITHIN THE CONTEXT OF CUSTOMER VIRTUAL PRIVATE NETWORKS 有权
标题翻译：在客户虚拟私有网络的背景下执行可追溯性测试的方法和装置
公开(公告)号：US20100097943A1
公开(公告)日：2010-04-22
申请号：US12647486
申请日：2009-12-26
申请人： KEVIN L. D'SOUZA , Leah Zhang
发明人： KEVIN L. D'SOUZA , Leah Zhang
IPC分类号： H04L12/26
CPC分类号： H04L43/50 , H04L12/4641 , H04L41/12 , H04L43/0811 , H04L43/10 , H04L45/70
摘要： In one embodiment, the invention comprises a method and apparatus for verifying connectivity in a network comprising a plurality of provider edge routers and a plurality of customer edge routers facilitating communication within at least one customer virtual private network. In another embodiment, the invention comprises a method for determining respective operational statuses of edge communication links between provider edge routers and customer edge routers. In another embodiment, the invention comprises a method for verifying site-to-site reachability within the context of customer virtual private networks.
摘要翻译：在一个实施例中，本发明包括一种用于验证网络中的连接性的方法和装置，包括多个提供商边缘路由器和多个客户边缘路由器，其促进至少一个客户虚拟专用网络内的通信。在另一个实施例中，本发明包括一种用于确定提供商边缘路由器和客户边缘路由器之间的边缘通信链路的相应操作状态的方法。在另一个实施例中，本发明包括用于在客户虚拟专用网络的上下文中验证站点到站点可达性的方法。

6. 发明授权

US07664043B1 Method and apparatus for performing reachability testing within the context of customer virtual private networks 失效
标题翻译：用于在客户虚拟专用网络的上下文中执行可达性测试的方法和装置
公开(公告)号：US07664043B1
公开(公告)日：2010-02-16
申请号：US10955830
申请日：2004-09-30
申请人： Kevin L. D'Souza , Leah Zhang
发明人： Kevin L. D'Souza , Leah Zhang
IPC分类号： H04L12/26
CPC分类号： H04L43/50 , H04L12/4641 , H04L41/12 , H04L43/0811 , H04L43/10 , H04L45/70
摘要： In one embodiment, the invention comprises a method and apparatus for verifying connectivity in a network comprising a plurality of provider edge routers and a plurality of customer edge routers facilitating communication within at least one customer virtual private network. In another embodiment, the invention comprises a method for determining respective operational statuses of edge communication links between provider edge routers and customer edge routers. In another embodiment, the invention comprises a method for verifying site-to-site reachability within the context of customer virtual private networks.
摘要翻译：在一个实施例中，本发明包括一种用于验证网络中的连接性的方法和装置，包括多个提供商边缘路由器和多个客户边缘路由器，其促进至少一个客户虚拟专用网络内的通信。在另一个实施例中，本发明包括一种用于确定提供商边缘路由器和客户边缘路由器之间的边缘通信链路的相应操作状态的方法。在另一个实施例中，本发明包括用于在客户虚拟专用网络的上下文中验证站点到站点可达性的方法。

7. 发明授权

US07609626B2 Nodes for managing congestion and traffic flow by considering the minimization of link utilization values 有权
标题翻译：通过考虑链路利用率的最小化来管理拥塞和业务流的节点
公开(公告)号：US07609626B2
公开(公告)日：2009-10-27
申请号：US11454833
申请日：2006-06-19
申请人： Yufei Wang , Zheng Wang , Leah Zhang
发明人： Yufei Wang , Zheng Wang , Leah Zhang
IPC分类号： H04L12/56
CPC分类号： H04L43/0882 , H04L41/083 , H04L41/5003 , H04L41/5025 , H04L45/00 , H04L45/12 , H04L45/123 , H04L45/50
摘要： Traffic demands are routed across links of an information network so as to avoid congestion and allow for future traffic growth. Traffic demands from a source node to a destination node of the network are monitored, including bandwidths associated with each of the demands. For each demand, and for a given link of the network, that portion of the bandwidth associated with each traffic demand which is provided by the given link, is determined. A maximum value of link utilization among all links of the network is then determined, wherein link utilization is defined as the amount of bandwidth used by all traffic demands routed through a given link with respect to a total capacity of the link. Traffic demands are then routed across the links of the network in such a manner as to minimize the maximum value of link utilization.
摘要翻译：交通需求通过信息网络的链路进行路由，以避免拥塞并允许将来流量增长。监视从源节点到网络的目的地节点的业务需求，包括与每个需求相关联的带宽。对于每个需求，并且对于网络的给定链路，确定与由给定链路提供的每个业务需求相关联的带宽的那部分。然后确定网络的所有链路之间的链路利用率的最大值，其中链路利用率被定义为相对于链路的总容量通过给定链路路由的所有业务需求所使用的带宽量。然后，以使得链路利用率的最大值最小化的方式将网络的链路路由到业务需求。

8. 发明授权

US07065044B2 Managing congestion and traffic flow by considering the minimization of link utilization values 有权
标题翻译：通过考虑链路利用率的最小化来管理拥塞和流量
公开(公告)号：US07065044B2
公开(公告)日：2006-06-20
申请号：US10825203
申请日：2004-04-16
申请人： Yufei Wang , Zheng Wang , Leah Zhang
发明人： Yufei Wang , Zheng Wang , Leah Zhang
IPC分类号： H04L12/56
CPC分类号： H04L47/125 , F02D33/003 , H04L47/10 , H04L47/11 , H04L47/15 , H04L47/70
摘要： Traffic demands are routed across links of an information network so as to avoid congestion and allow for future traffic growth. Traffic demands from a source node to a destination node of the network are monitored, including bandwidths associated with each of the demands. For each demand, and for a given link of the network, that portion of the bandwidth associated with each traffic demand which is provided by the given link, is determined. A maximum value of link utilization among all links of the network is then determined, wherein link utilization is defined as the amount of bandwidth used by all traffic demands routed through a given link with respect to a total capacity of the link. Traffic demands are then routed across the links of the network in such a manner as to minimize the maximum value of link utilization.
摘要翻译：交通需求通过信息网络的链路进行路由，以避免拥塞并允许将来流量增长。监视从源节点到网络的目的地节点的业务需求，包括与每个需求相关联的带宽。对于每个需求，并且对于网络的给定链路，确定与由给定链路提供的每个业务需求相关联的带宽的那部分。然后确定网络的所有链路之间的链路利用率的最大值，其中链路利用率被定义为相对于链路的总容量通过给定链路路由的所有业务需求所使用的带宽量。然后，以使得链路利用率的最大值最小化的方式将网络的链路路由到业务需求。

9. 发明授权

US06728782B1 Method of verifying newly provisioned customer network route advertisements 失效
标题翻译：验证新提供的客户网络路由广告的方法
公开(公告)号：US06728782B1
公开(公告)日：2004-04-27
申请号：US09576468
申请日：2000-05-23
申请人： Kevin L D'Souza , Han Q. Nguyen , Leah Zhang
发明人： Kevin L D'Souza , Han Q. Nguyen , Leah Zhang
IPC分类号： G06F15173
CPC分类号： H04L45/021 , H04L45/02 , H04L45/04
摘要： Route advertisement requests made by a customer are received at route provisioning center (20) to effect either advertisement of a newly provisioned route or withdrawal of an existing route. In the case of a request to advertise a newly provisioned route, the request is subjected to validation, and if unable to be validated, the request is rejected. Upon validation of a new route advertisement, or following receipt of a request to withdraw an existing route advertisement, the customer-entered request is entered into an official routing database (26) for subsequent propagation to network access providers (14, 16 and 18). Periodically, a check is made to verify that the customer-entered request remains active.
摘要翻译：在路由配置中心（20）处接收到客户做出的路由广播请求，以实现新提供的路由的广告或现有路由的撤销。在要求广告新配置的路由的情况下，请求被验证，并且如果不能被验证，则该请求被拒绝。在验证新的路线广告之后，或在接收到撤回现有路线广告的请求之后，客户输入的请求被输入到官方路由数据库（26）中，以便随后传播到网络接入提供商（14,16和18）。定期检查以确认客户输入的请求是否保持活动。

10. 发明授权

US08161194B2 Method and apparatus for flexible network management of multiple customer virtual private networks 有权
标题翻译：多个客户虚拟专用网络的灵活网络管理方法和装置
公开(公告)号：US08161194B2
公开(公告)日：2012-04-17
申请号：US12852602
申请日：2010-08-09
申请人： Kevin D'Souza , Leah Zhang
发明人： Kevin D'Souza , Leah Zhang
IPC分类号： G06F15/173
CPC分类号： H04L41/5064
摘要： The invention comprises a method and apparatus for deriving at least one router configuration of at least one datacenter edge router and at least one provider edge router to support at least one datacenter managing at least one customer virtual private network. Specifically, the method comprises assigning at least one datacenter profile to the at least one datacenter, and assigning a datacenter profile route-target to the at least one datacenter profile.
摘要翻译：本发明包括用于导出至少一个数据中心边缘路由器和至少一个提供商边缘路由器的至少一个路由器配置的方法和装置，以支持管理至少一个客户虚拟专用网络的至少一个数据中心。具体地说，该方法包括将至少一个数据中心配置文件分配给至少一个数据中心，以及将数据中心配置文件路由目标分配给至少一个数据中心配置文件。

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