公开(公告)号：US20080279110A1

公开(公告)日：2008-11-13

申请号：US11798086

申请日：2007-05-10

申请人： Neil Hart ,  Tiberiu Grigoriu ,  Mustapha Aissaoui

发明人： Neil Hart ,  Tiberiu Grigoriu ,  Mustapha Aissaoui

IPC分类号： H04L12/26

CPC分类号： H04L45/50 ,  H04L43/0811 ,  H04L43/10 ,  H04L43/50

摘要： A method for testing connectivity of a multi-segment pseudo-wire (“MS-PW”) in a network, the method comprising: sending an echo request message from a first provider edge (“PE”) device to a second provider edge (“PE”) device for a section of the multi-segment pseudo-wire (“MS-PW”) between the first provider edge (“PE”) device and the second provider edge (“PE”) device; the echo request message being identified as such by a control word contained therein; an inner label of the echo request message having a time-to-live (“TTL”) value set to a number of segments in the section; the time-to-live (“TTL”) value for determining whether the control word is to be inspected as it traverses the section; upon the echo request message arriving at the second provider edge (“PE”) device, the second provider edge (“PE”) device recognizing the echo request message as such by inspecting the control word contained therein; and, receiving an echo reply message from the second provider edge (“PE”) device in response to the echo request message, the echo reply message confirming connectivity of the section.

摘要翻译： 一种用于测试网络中的多段伪线（“MS-PW”）的连通性的方法，所述方法包括：将回波请求消息从第一提供商边缘（“PE”）设备发送到第二提供商边缘 “PE”）设备之间的第一提供商边缘（“PE”）设备和第二提供商边缘（“PE”）设备之间的多段伪线（“MS-PW”）的一部分） 所述回声请求消息通过其中包含的控制字被识别; 所述回声请求消息的内部标签具有设置到所述部分中的多个段的生存时间（“TTL”）值; 用于确定控制字在穿过该部分时是否被检查的生存时间（“TTL”）值; 在到达第二提供商边缘（“PE”）设备的回波请求消息的第二提供商边缘（“PE”）设备上通过检查其中包含的控制字来识别回声请求消息; 并且响应于所述回声请求消息从所述第二提供商边缘（“PE”）设备接收回应应答消息，所述回复应答消息确认所述部分的连通性。

公开(公告)号：US20080225864A1

公开(公告)日：2008-09-18

申请号：US11687214

申请日：2007-03-16

申请人： Mustapha Aissaoui ,  Andrew Dolganow ,  Matthew Bocci ,  Alexey Zinin ,  Dimitri Papadimitriou

发明人： Mustapha Aissaoui ,  Andrew Dolganow ,  Matthew Bocci ,  Alexey Zinin ,  Dimitri Papadimitriou

IPC分类号： H04L12/46

CPC分类号： H04L45/04 ,  H04L12/4633 ,  H04L41/12 ,  H04L45/02 ,  H04L45/50

摘要： Communication network routing apparatus and techniques using logical communication links are disclosed. A routing apparatus identifies a logical communication link that it is capable of being used to establish a virtual connection with another routing apparatus within a virtual connection operational domain, which includes multiple sub-domains, of an underlying communication system. A destination that is associated with the routing apparatus and is reachable through the virtual connection is also identified. Information that is indicative of the identified logical communication link and of the identified destination is provided for distribution from a sub-domain of the routing apparatus in the virtual connection operational domain to another sub-domain within the virtual connection operational domain. This distribution of information enables a routing apparatus in one sub-domain to dynamically route a virtual connection toward a destination in a different sub-domain. Data structures for distributing the information are also disclosed.

摘要翻译： 公开了使用逻辑通信链路的通信网络路由设备和技术。 路由装置识别逻辑通信链路，其能够用于与底层通信系统的虚拟连接操作域（包括多个子域）内的另一路由装置建立虚拟连接。 还识别与路由设备相关联并且可通过虚拟连接到达的目的地。 指示所识别的逻辑通信链路和所识别的目的地的信息被提供用于从虚拟连接操作域中的路由设备的子域分发到虚拟连接操作域内的另一个子域。 这种信息分布使得一个子域中的路由设备能够将虚拟连接动态地路由到不同子域中的目的地。 还公开了用于分发信息的数据结构。

公开(公告)号：US06317416B1

公开(公告)日：2001-11-13

申请号：US09051294

申请日：1998-09-08

申请人： Natalie Giroux ,  Raymond R. Liao ,  Mustapha Aissaoui

发明人： Natalie Giroux ,  Raymond R. Liao ,  Mustapha Aissaoui

IPC分类号： H04J314

CPC分类号： H04L12/5602 ,  H04L2012/5679 ,  H04L2012/5681 ,  H04Q11/0478

摘要： In a method of fair queue servicing at a queuing point in a multi-service class packet switched network, incoming packets are received in buffers and outgoing packets are scheduled by a weighted fair queue scheduler. Real-time information of buffer usage along with the minimum bandwidth requirement is used to dynamically modify the weights of the weighted fair queue scheduler.

摘要翻译： 在多服务类分组交换网络中的排队点进行公平队列服务的方法中，输入分组在缓冲器中被接收，输出分组由加权公平队列调度器调度。 缓冲区使用的实时信息以及最小带宽要求用于动态修改加权公平队列调度器的权重。

公开(公告)号：US09264361B2

公开(公告)日：2016-02-16

申请号：US13857110

申请日：2013-04-04

申请人： Pranjal K Dutta ,  Mustapha Aissaoui

发明人： Pranjal K Dutta ,  Mustapha Aissaoui

IPC分类号： H04L12/28 ,  H04L12/801 ,  H04L12/723 ,  H04L12/703

CPC分类号： H04L47/12 ,  H04L45/28 ,  H04L45/50 ,  H04L45/507

摘要： A method and apparatus for implementing multiple Label Distribution Protocol (LDP) Label Switch Router (LSR) instances sharing a common data plane at a network element or node.

摘要翻译： 一种用于实现在网元或节点处共享公共数据平面的多个标签分发协议（LDP）标签交换路由器（LSR）实例的方法和装置。

公开(公告)号：US09225648B2

公开(公告)日：2015-12-29

申请号：US13857110

申请日：2013-04-04

申请人： Pranjal K Dutta ,  Mustapha Aissaoui

发明人： Pranjal K Dutta ,  Mustapha Aissaoui

IPC分类号： H04L12/28 ,  H04L12/801 ,  H04L12/723 ,  H04L12/703

摘要： A method and apparatus for implementing multiple Label Distribution Protocol (LDP) Label Switch Router (LSR) instances sharing a common data plane at a network element or node.

公开(公告)号：US08345552B2

公开(公告)日：2013-01-01

申请号：US11679582

申请日：2007-02-27

申请人： Mustapha Aissaoui ,  Andrew Dolganow

发明人： Mustapha Aissaoui ,  Andrew Dolganow

IPC分类号： H04L12/26

CPC分类号： H04L45/121 ,  H04L12/66 ,  H04L45/02 ,  H04L45/04 ,  H04L45/12 ,  H04L45/124 ,  H04L45/44 ,  H04L45/50 ,  H04L47/10

摘要： Virtual connection route selection apparatus and techniques are disclosed. At a communication traffic routing apparatus, metric information associated with multiple different routes for a virtual connection, such as a PseudoWire, toward a destination is collected. The metric information may be collected from one or more remote route computation elements capable of computing routes for virtual connections between the routing apparatus and other routing apparatus over an underlying communication system, or during actual establishment of the virtual connections, for example. An initial or re-optimized route for a virtual connection can then be selected at the routing apparatus based on the collected metric information. In some embodiments, although the virtual connection routes are paths computed by Path Computation Elements (PCEs), actual path selection decisions are distributed to routers.

摘要翻译： 公开虚拟连接路由选择装置和技术。 在通信业务路由装置中，收集与目的地的虚拟连接（例如伪线）的多个不同路由相关联的度量信息。 例如，可以从一个或多个远程路线计算元件收集度量信息，所述远程路线计算元件能够通过底层通信系统计算路由设备和其他路由设备之间的虚拟连接的路由，或者在虚拟连接的实际建立期间。 然后可以基于收集的度量信息在路由设备处选择用于虚拟连接的初始或重新优化的路由。 在一些实施例中，尽管虚拟连接路由是由路径计算元素（PCE）计算的路径，但实际的路径选择决定分配给路由器。

公开(公告)号：US07957274B2

公开(公告)日：2011-06-07

申请号：US10207844

申请日：2002-07-31

申请人： Ram Balakrishnan ,  Mustapha Aissaoui ,  Mudashiru Busari ,  John Coffell ,  Shawn McAllister ,  Peter Roberts

发明人： Ram Balakrishnan ,  Mustapha Aissaoui ,  Mudashiru Busari ,  John Coffell ,  Shawn McAllister ,  Peter Roberts

IPC分类号： H04J1/16

CPC分类号： H04L45/00 ,  H04L45/28 ,  H04L47/122 ,  H04L2012/563 ,  H04Q3/0025 ,  H04Q11/0478

摘要： In source routed or hop-by-hop routed protocol communication networks, when congestion is detected at a certain network element, a notification message is sent to nodes. The nodes keep track of congestion condition and generally have knowledge of the congestion, thereby allowing them to make more intelligent routing decisions, i.e., rate controlling messages, routing traffic around congestion, regulating admission at the edge of the network. The intelligent routing decision is based on the congestion condition indicated by a restriction level which is periodically and dynamically updated.

摘要翻译： 在源路由或逐跳路由协议通信网络中，当在某个网元检测到拥塞时，向节点发送通知消息。 节点跟踪拥塞情况，并且通常具有拥塞的知识，从而允许他们做出更智能的路由决策，即速率控制消息，围绕拥塞路由业务，调整在网络边缘处的接纳。 智能路由决策是基于周期性和动态更新的限制级别所表示的拥塞状况。

公开(公告)号：US07023866B2

公开(公告)日：2006-04-04

申请号：US09984302

申请日：2001-10-29

申请人： Natalie Giroux ,  Raymond R. Liao ,  Mustapha Aissaoui

发明人： Natalie Giroux ,  Raymond R. Liao ,  Mustapha Aissaoui

IPC分类号： H04L12/56 ,  H04J3/14

CPC分类号： H04L12/5602 ,  H04L2012/5679 ,  H04L2012/5681 ,  H04Q11/0478

摘要： In a method of fair queue servicing at a queuing point in a multi-service class packet switched network, incoming packets are received in buffers and outgoing packets are scheduled by a weighted fair queue scheduler. Real-time information of buffer usage along with the minimum bandwidth requirement is used to dynamically modify the weights of the weighted fair queue scheduler.

公开(公告)号：US06618378B1

公开(公告)日：2003-09-09

申请号：US09358390

申请日：1999-07-21

申请人： Natalie Giroux ,  Mustapha Aissaoui

发明人： Natalie Giroux ,  Mustapha Aissaoui

IPC分类号： H04L1228

CPC分类号： H04L12/5602 ,  H04L12/5601 ,  H04L47/24 ,  H04L47/26 ,  H04L47/30 ,  H04L47/32 ,  H04L2012/5632 ,  H04L2012/5679 ,  H04L2012/5682

摘要： The method of the invention includes the step of transmitting a priority indicator containing information indicating the priority of network traffic over a connection to a downstream node in a communications network. The downstream node has a queue for queuing traffic received over the connection and the queue has an adjustable discard range. After transmitting the priority indicator, the network traffic is transmitted over the connection. When the priority indicator is received at the downstream node the discard range is adjusted to correspond to the priority indicated in the priority indicator. At the downstream node the network traffic is stored in the queue if a queue congestion measure is outside the discard range and discarded if the queue congestion measure is within the discard range. The priority indicator may be a Resource Management cell or may be provided in the header of a cell carrying the network traffic.

摘要翻译： 本发明的方法包括以下步骤：将通过连接的指示网络业务的优先级的信息的优先级指示符发送到通信网络中的下游节点。 下游节点具有用于对通过连接接收的流量进行排队的队列，并且队列具有可调整的丢弃范围。 发送优先级指示后，通过连接传输网络流量。 当在下游节点接收到优先级指示符时，将丢弃范围调整为与优先级指示符中指示的优先级相对应。 在下游节点，如果队列拥塞度超出丢弃范围，则网络流量存储在队列中，如果队列拥塞度在丢弃范围内，则丢弃。 优先级指示符可以是资源管理小区，或者可以提供在承载网络业务的小区的报头中。