公开(公告)号：US08284678B2

公开(公告)日：2012-10-09

申请号：US12050121

申请日：2008-03-17

申请人： Sriganesh Kini ,  Rishi Mehta

发明人： Sriganesh Kini ,  Rishi Mehta

IPC分类号： G06F11/00

CPC分类号： H04L41/0627 ,  H04L41/06 ,  H04L43/0811 ,  H04L61/2528

摘要： A method and apparatus that proxies connectivity check messages and sends fault state changes messages across an MPLS/VPLS network is described. A network element proxies connectivity check messages for remote maintenance endpoints based on a local database. The network element updates the database based on received fault state change message that identify a fault state change of a remote maintenance endpoint. The network element detects fault state changes of local maintenance endpoints and sends a fault state change message to other network elements that proxy connectivity check message for the local maintenance endpoints.

摘要翻译： 描述了通过MPLS / VPLS网络代理连通性检查消息并发送故障状态改变消息的方法和装置。 网络元素根据本地数据库代理远程维护端点的连接检查消息。 网元基于接收到的故障状态改变消息来更新数据库，该消息识别远程维护端点的故障状态改变。 网元检测本地维护端点的故障状态变化，并将故障状态更改消息发送给本地维护端点的代理连接性检查消息的其他网元。

公开(公告)号：US08284677B2

公开(公告)日：2012-10-09

申请号：US12050118

申请日：2008-03-17

申请人： Sriganesh Kini ,  Rishi Mehta

发明人： Sriganesh Kini ,  Rishi Mehta

IPC分类号： G06F11/00

CPC分类号： H04L41/0627 ,  H04L41/06 ,  H04L43/0811 ,  H04L61/2528

摘要： A method and apparatus that proxies connectivity check messages and sends fault state changes messages across an MPLS/VPLS network is described. A network element proxies connectivity check messages for remote maintenance endpoints based on a local database. The network element updates the database based on received fault state change message that identify a fault state change of a remote maintenance endpoint. The network element detects fault state changes of local maintenance endpoints and sends a fault state change message to other network elements that proxy connectivity check message for the local maintenance endpoints.

公开(公告)号：US20110310730A1

公开(公告)日：2011-12-22

申请号：US13217992

申请日：2011-08-25

申请人： Sriganesh Kini ,  Rishi Mehta

发明人： Sriganesh Kini ,  Rishi Mehta

IPC分类号： H04L12/26

CPC分类号： H04L43/0811 ,  H04L12/2859 ,  H04L12/44 ,  H04L41/0654

摘要： Techniques for recovering from hierarchical virtual private LAN service (HVPLS) hub connectivity failure with a dynamic spoke pseudowire. According to one embodiment of the invention, a provider edge (PE) network element in the HVPLS hub monitors for a failure of HVPLS hub connectivity failure and reuses an HVPLS spoke connectivity failure recovery mechanism in an MTU by fabricating failure of one or more spoke facing connectivity elements coupling the MTU with the PE network element causing the MTU to transition to a secondary PE network element in the HVPLS hub. In addition, the PE network element establishes a dynamic spoke pseudowire for each virtual instance affected with the MTU to restore HVPLS hub connectivity for that PE network element.

摘要翻译： 使用动态辐条伪线从层次化虚拟专用局域网服务（HVPLS）集线器连接故障中恢复的技术。 根据本发明的一个实施例，HVPLS集线器中的提供商边缘（PE）网元监视HVPLS集线器连接故障的故障，并且通过制造一个或多个辐条面对的故障来重新使用MTU中的HVPLS辐条连接故障恢复机制 连接元件将MTU与PE网络元件相连，导致MTU过渡到HVPLS集线器中的辅助PE网络元件。 此外，PE网络元件为受MTU影响的每个虚拟实例建立动态辐条伪线，以恢复该PE网络元件的HVPLS集线器连接。

公开(公告)号：US08064338B2

公开(公告)日：2011-11-22

申请号：US12347863

申请日：2008-12-31

申请人： Sriganesh Kini ,  Rishi Mehta

发明人： Sriganesh Kini ,  Rishi Mehta

IPC分类号： G01R31/08 ,  G06F11/00

CPC分类号： H04L43/0811 ,  H04L12/2859 ,  H04L12/44 ,  H04L41/0654

摘要： Techniques for recovering from hierarchical virtual private LAN service (HVPLS) hub connectivity failure with a dynamic spoke pseudowire. According to one embodiment of the invention, a provider edge (PE) network element in the HVPLS hub monitors for a failure of HVPLS hub connectivity failure and reuses an HVPLS spoke connectivity failure recovery mechanism in an MTU by fabricating failure of one or more spoke facing connectivity elements coupling the MTU with the PE network element causing the MTU to transition to a secondary PE network element in the HVPLS hub. In addition, the PE network element establishes a dynamic spoke pseudowire for each virtual instance affected with the MTU to restore HVPLS hub connectivity for that PE network element.

摘要翻译： 使用动态辐条伪线从层次化虚拟专用局域网服务（HVPLS）集线器连接故障恢复的技术。 根据本发明的一个实施例，HVPLS集线器中的提供商边缘（PE）网元监视HVPLS集线器连接故障的故障，并且通过制造一个或多个辐条面对的故障来重新使用MTU中的HVPLS辐条连接故障恢复机制 连接元件将MTU与PE网络元件相连，导致MTU过渡到HVPLS集线器中的辅助PE网络元件。 此外，PE网络元件为受MTU影响的每个虚拟实例建立动态辐条伪线，以恢复该PE网络元件的HVPLS集线器连接。

公开(公告)号：US20090109861A1

公开(公告)日：2009-04-30

申请号：US12050121

申请日：2008-03-17

申请人： Sriganesh Kini ,  Rishi Mehta

发明人： Sriganesh Kini ,  Rishi Mehta

IPC分类号： G01R31/08

CPC分类号： H04L41/0627 ,  H04L41/06 ,  H04L43/0811 ,  H04L61/2528

摘要： A method and apparatus that proxies connectivity check messages and sends fault state changes messages across an MPLS/VPLS network is described. A network element proxies connectivity check messages for remote maintenance endpoints based on a local database. The network element updates the database based on received fault state change message that identify a fault state change of a remote maintenance endpoint. The network element detects fault state changes of local maintenance endpoints and sends a fault state change message to other network elements that proxy connectivity check message for the local maintenance endpoints.

公开(公告)号：US20070253438A1

公开(公告)日：2007-11-01

申请号：US11413409

申请日：2006-04-28

申请人： David Curry ,  Robert Colvin ,  Samer Nubani ,  Ravindra Sunkad ,  Man-Tung Hsiao ,  Paul Hallinan ,  Rishi Mehta ,  Sanjay Khanna

发明人： David Curry ,  Robert Colvin ,  Samer Nubani ,  Ravindra Sunkad ,  Man-Tung Hsiao ,  Paul Hallinan ,  Rishi Mehta ,  Sanjay Khanna

IPC分类号： H04L12/56 ,  H04L12/28

CPC分类号： H04L47/624 ,  H04L47/10 ,  H04L47/2408 ,  H04L47/2441 ,  H04L47/31 ,  H04L47/60 ,  H04L47/621 ,  H04L49/90

摘要： Differentiated services for network traffic using weighted quality of service is provided. Network traffic is queued into separate per flow queues, and traffic is scheduled from the per flow queues into a group queue. Congestion management is performed on traffic in the group queue. Traffic is marked with priority values, and congestion management is performed based on the priority values. For example, traffic can be marked as “in contract” if it is within a contractual limit, and marked as “out of contract” if it is not within the contractual limit. Marking can also include classifying incoming traffic based on Differentiated Service Code Point. Higher priority traffic can be scheduled from the per flow queues in a strict priority over lower priority traffic. The lower priority traffic can be scheduled in a round robin manner.

摘要翻译： 提供了使用加权质量服务的网络流量差异化服务。 网络流量排队到每个流队列中，流量从每个流队列调度到组队列中。 对组队列中的流量执行拥塞管理。 流量被标记为优先级值，并根据优先级值进行拥塞管理。 例如，如果交易在契约限制范围内，则可以将其标记为“合同”，如果不在合同限制范围内，则标记为“合同”。 标记还可以包括基于差分服务代码点对传入流量进行分类。 可以将优先级较高的流量从严格优先级的每个流队列调度为优先级较低的流量。 较低优先级的流量可以轮循方式进行调度。

公开(公告)号：US20070206602A1

公开(公告)日：2007-09-06

申请号：US11463230

申请日：2006-08-08

申请人： MITRI HALABI ,  Sanjay Khanna ,  Robert Colvin ,  Rishi Mehta

发明人： MITRI HALABI ,  Sanjay Khanna ,  Robert Colvin ,  Rishi Mehta

IPC分类号： H04L12/56

CPC分类号： H04L45/00 ,  H04L45/302 ,  H04L45/50 ,  H04L47/50 ,  H04L47/521 ,  H04L47/522 ,  H04L47/58 ,  H04L47/623 ,  H04L49/206 ,  H04L49/254

摘要： Differentiated service classes on a label switch path are managed by comparing at least one packet field value included in a packet of data to mapping field values of a mapping that correlates the mapping field values with queues. The packet is stored into one of the queues based on the comparing. A first subset of the queues is scheduled using a first queue scheduling algorithm and a second subset of the queues is scheduled using a second queue scheduling algorithm. The packet is transmitted onto the label switch path in accordance with a predefined scheduling order of the first subset of the queues and the second subset of the queues.

摘要翻译： 通过将包括在数据包中的至少一个分组字段值与将映射字段值与队列相关联的映射的字段值进行比较来管理标签交换路径上的差分服务类。 基于比较将数据包存储到一个队列中。 使用第一队列调度算法调度队列的第一子集，并且使用第二队列调度算法调度队列的第二子集。 根据队列的第一子集和队列的第二子集的预定调度顺序将分组发送到标签交换路径上。

公开(公告)号：US08537679B2

公开(公告)日：2013-09-17

申请号：US12116954

申请日：2008-05-08

申请人： Pritam Baruah ,  Rishi Mehta

发明人： Pritam Baruah ,  Rishi Mehta

IPC分类号： H04J1/16 ,  H04J3/16 ,  H04L12/28

CPC分类号： H04L47/125 ,  H04L45/24 ,  H04L45/50 ,  H04L45/68 ,  H04L45/7453 ,  H04L61/6068 ,  H04L65/4076 ,  H04L65/80 ,  H04L69/324 ,  H04N21/238 ,  H04N21/2402 ,  H04N21/64322

摘要： A method for load balancing IPTV channels is described. In one embodiment of the invention, a first Provider Edge (PE) network element of a label switched network, coupled with a second PE network element over multiple member links of an aggregate link, receives IPTV packets. For each IPTV packet received, the first PE network determines layer 3 information of the IPTV packet, and generates one or more channel load balancing keys based on the layer 3 information. The PE network element generates a hash value from the channel load balancing keys and determines which one of multiple member links to transmit the IPTV packet on based on the hash value, and transmits the IPTV packet to the second PE network element on the determined member link. Other methods and apparatuses are also described.

摘要翻译： 描述了用于负载平衡IPTV频道的方法。 在本发明的一个实施例中，标签交换网络的第一提供者边缘（PE）网络元件与聚合链路的多个成员链路上的第二PE网络元件相连接，接收IPTV分组。 对于接收的每个IPTV分组，第一PE网络确定IPTV分组的第3层信息，并且基于第3层信息生成一个或多个信道负载均衡密钥。 PE网元从信道负载分担密钥生成哈希值，并根据哈希值确定多个成员链路中哪一个发送IPTV分组，并将该IPTV分组发送到确定的成员链路上的第二个PE网络单元 。 还描述了其它方法和装置。

公开(公告)号：US08223642B2

公开(公告)日：2012-07-17

申请号：US11413409

申请日：2006-04-28

申请人： David S. Curry ,  Robert J. Colvin ,  Samer I. Nubani ,  Ravindra Sunkad ,  Man-Tung T. Hsiao ,  Paul M. Hallinan ,  Rishi Mehta ,  Sanjay Khanna

发明人： David S. Curry ,  Robert J. Colvin ,  Samer I. Nubani ,  Ravindra Sunkad ,  Man-Tung T. Hsiao ,  Paul M. Hallinan ,  Rishi Mehta ,  Sanjay Khanna

IPC分类号： H04L12/56

CPC分类号： H04L47/624 ,  H04L47/10 ,  H04L47/2408 ,  H04L47/2441 ,  H04L47/31 ,  H04L47/60 ,  H04L47/621 ,  H04L49/90

摘要： Differentiated services for network traffic using weighted quality of service is provided. Network traffic is queued into separate per flow queues, and traffic is scheduled from the per flow queues into a group queue. Congestion management is performed on traffic in the group queue. Traffic is marked with priority values, and congestion management is performed based on the priority values. For example, traffic can be marked as “in contract” if it is within a contractual limit, and marked as “out of contract” if it is not within the contractual limit. Marking can also include classifying incoming traffic based on Differentiated Service Code Point. Higher priority traffic can be scheduled from the per flow queues in a strict priority over lower priority traffic. The lower priority traffic can be scheduled in a round robin manner.

摘要翻译： 提供了使用加权质量服务的网络流量差异化服务。 网络流量排队到每个流队列中，流量从每个流队列调度到组队列中。 对组队列中的流量执行拥塞管理。 流量被标记为优先级值，并根据优先级值进行拥塞管理。 例如，如果交易在契约限制范围内，则可以将其标记为“合同”，如果不在合同限制范围内，则标记为“合同”。 标记还可以包括基于差分服务代码点对传入流量进行分类。 可以将优先级较高的流量从严格优先级的每个流队列调度为优先级较低的流量。 较低优先级的流量可以轮循方式进行调度。

公开(公告)号：US20090279431A1

公开(公告)日：2009-11-12

申请号：US12116954

申请日：2008-05-08

申请人： Pritam Baruah ,  Rishi Mehta

发明人： Pritam Baruah ,  Rishi Mehta

IPC分类号： H04L12/56 ,  H04N7/173

CPC分类号： H04L47/125 ,  H04L45/24 ,  H04L45/50 ,  H04L45/68 ,  H04L45/7453 ,  H04L61/6068 ,  H04L65/4076 ,  H04L65/80 ,  H04L69/324 ,  H04N21/238 ,  H04N21/2402 ,  H04N21/64322

摘要： A method for load balancing IPTV channels is described. In one embodiment of the invention, a first Provider Edge (PE) network element of a label switched network, coupled with a second PE network element over multiple member links of an aggregate link, receives IPTV packets. For each IPTV packet received, the first PE network determines layer 3 information of the IPTV packet, and generates one or more channel load balancing keys based on the layer 3 information. The PE network element generates a hash value from the channel load balancing keys and determines which one of multiple member links to transmit the IPTV packet on based on the hash value, and transmits the IPTV packet to the second PE network element on the determined member link. Other methods and apparatuses are also described.

摘要翻译： 描述了用于负载平衡IPTV频道的方法。 在本发明的一个实施例中，标签交换网络的第一提供者边缘（PE）网络元件与聚合链路的多个成员链路上的第二PE网络元件相连接，接收IPTV分组。 对于接收的每个IPTV分组，第一PE网络确定IPTV分组的第3层信息，并且基于第3层信息生成一个或多个信道负载均衡密钥。 PE网元从信道负载分担密钥生成哈希值，并根据哈希值确定多个成员链路中哪一个发送IPTV分组，并将该IPTV分组发送到确定的成员链路上的第二个PE网络单元 。 还描述了其它方法和装置。