公开(公告)号：US08671331B2

公开(公告)日：2014-03-11

申请号：US11531513

申请日：2006-09-13

申请人： Weiying Cheng ,  Jeffrey E. Budill

发明人： Weiying Cheng ,  Jeffrey E. Budill

IPC分类号： H03M13/00

CPC分类号： H04L1/0041 ,  H04J14/02 ,  H04L1/0046

摘要： A multi-mode transmission unit processes data to form an error correction code in accordance with one of a plurality of selectable processes. The data, correction code and a process identifier can be transmitted to a receiving unit which can carry out error correction of the data in accordance with the identified process.

摘要翻译： 多模式传输单元根据多个可选择的处理中的一个处理数据以形成纠错码。 可以将数据，校正码和处理标识符发送到接收单元，接收单元可以根据所识别的处理进行数据的纠错。

公开(公告)号：US20120076013A1

公开(公告)日：2012-03-29

申请号：US12891325

申请日：2010-09-27

申请人： Weiying Cheng

发明人： Weiying Cheng

IPC分类号： H04L12/26

CPC分类号： H04L41/5038 ,  H04L12/4641 ,  H04L43/0829

摘要： Embodiments including methods, apparatuses, and computer program products for calculating frame parameters for the purpose of measuring performance in a network based on the calculated frame parameters are disclosed. By automatically or manually provisioning at least two network elements in a star or other network topology to transmit and receive service frames (e.g., Loss Measurement Messages or Loss Measurement Responses), the embodiments enable network elements to share network resources, such as frame counters, thereby decreasing the number of frame counters needed to perform frame parameter measurements and increasing scalability for a given counter resource supported by a low cost network processor units.

摘要翻译： 公开了包括用于基于所计算的帧参数来计算网络中的性能的目的来计算帧参数的方法，装置和计算机程序产品的实施例。 通过自动或手动地配置星形或其他网络拓扑中的至少两个网络元件以发送和接收服务帧（例如，损失测量消息或丢失测量响应），实施例使得网络元件能够共享网络资源，诸如帧计数器， 从而减少执行帧参数测量所需的帧计数器的数量，并增加由低成本网络处理器单元支持的给定计数器资源的可扩展性。

公开(公告)号：US20080170852A1

公开(公告)日：2008-07-17

申请号：US11652796

申请日：2007-01-12

申请人： Philip J. Santoro ,  Robert D. Gatze ,  Gregory V. Degnan ,  Eric L. Chan ,  Weiying Cheng

发明人： Philip J. Santoro ,  Robert D. Gatze ,  Gregory V. Degnan ,  Eric L. Chan ,  Weiying Cheng

IPC分类号： H04B10/08

CPC分类号： H04B10/0773

摘要： An optical transponder, system, method, and program wherein the transponder monitors for at least one of a failure or an alarm signal. In response to detecting a failure or alarm signal (communication), the transponder performs at least one of a predetermined action and propagating an alarm communication to a network, based on a configuration property. The transponder can have a configuration property specifying a predetermined action for shutting off a laser if an alarm signal indicating a network failure is detected. As an example, some transponders can be configured to either provide an alarm communication, and/or shut off a laser, depending upon which communication interface detects a network failure or receives an alarm signal. Also, other transponders can be configured to propagate existing alarm communications, without generating new alarm communications or shutting off lasers. In this manner, the number of alarm signals and laser shut offs can be reduced when a network failure is propagated through the network.

摘要翻译： 一种光转发器，系统，方法和程序，其中应答器监视故障或报警信号中的至少一个。 响应于检测到故障或报警信号（通信），转发器基于配置属性执行预定动作中的至少一个并向网络传播报警通信。 如果检测到指示网络故障的报警信号，则应答器可以具有指定用于关闭激光器的预定动作的配置属性。 作为示例，根据哪个通信接口检测到网络故障或接收到报警信号，一些应答器可以被配置为提供报警通信和/或关闭激光器。 此外，其他应答器可以配置为传播现有的报警通信，而不会产生新的报警通信或关闭激光。 以这种方式，当网络故障通过网络传播时，可以减少报警信号和激光关闭的数量。

公开(公告)号：US07663480B2

公开(公告)日：2010-02-16

申请号：US11652796

申请日：2007-01-12

申请人： Philip J. Santoro ,  Robert D. Gatze ,  Gregory V. Degnan ,  Eric L. Chan ,  Weiying Cheng

发明人： Philip J. Santoro ,  Robert D. Gatze ,  Gregory V. Degnan ,  Eric L. Chan ,  Weiying Cheng

IPC分类号： G08B1/00

CPC分类号： H04B10/0773

摘要： An optical transponder, system, method, and program wherein the transponder monitors for at least one of a failure or an alarm signal. In response to detecting a failure or alarm signal (communication), the transponder performs at least one of a predetermined action and propagating an alarm communication to a network, based on a configuration property. The transponder can have a configuration property specifying a predetermined action for shutting off a laser if an alarm signal indicating a network failure is detected. As an example, some transponders can be configured to either provide an alarm communication, and/or shut off a laser, depending upon which communication interface detects a network failure or receives an alarm signal. Also, other transponders can be configured to propagate existing alarm communications, without generating new alarm communications or shutting off lasers. In this manner, the number of alarm signals and laser shut offs can be reduced when a network failure is propagated through the network.

摘要翻译： 一种光转发器，系统，方法和程序，其中应答器监视故障或报警信号中的至少一个。 响应于检测到故障或报警信号（通信），转发器基于配置属性执行预定动作中的至少一个并向网络传播报警通信。 如果检测到指示网络故障的报警信号，则应答器可以具有指定用于关闭激光器的预定动作的配置属性。 作为示例，根据哪个通信接口检测到网络故障或接收到报警信号，一些应答器可以被配置为提供报警通信和/或关闭激光器。 此外，其他应答器可以配置为传播现有的报警通信，而不会产生新的报警通信或关闭激光。 以这种方式，当网络故障通过网络传播时，可以减少报警信号和激光关闭的数量。

公开(公告)号：US20090016384A1

公开(公告)日：2009-01-15

申请号：US11827545

申请日：2007-07-12

申请人： Weiying Cheng ,  Chris R. Zettinger

发明人： Weiying Cheng ,  Chris R. Zettinger

IPC分类号： H04J3/06 ,  H04J1/16

CPC分类号： H04L12/422 ,  H04J3/0641 ,  H04J3/0658

摘要： Packets used for distributing timing information over a Resilient Packet Ring (RPR) are generated by encoding Synchronization Status Messaging (SSM) messages into IEEE 802.3ah OAM packets (or any other OAM packets, such as those defined in ITU Y.1731). Information indicating the direction that each message is to be transmitted around the RPR ring is also encoded in the packets in either the spare bits of the SSM messages or in the Type-Length-Value (TLV) bytes of the IEEE 802.3ah OAM packets or Y.1731 OAM packets. RPR protection is disabled for the packets carrying the SSM messages and the packets are transmitted to adjacent network nodes in the directions specified by the information encoded in the messages. Information encoded in received packets specifying timing quality and direction of the received messages is observed and compared to determine which timing information included in the messages to use for clock timing.

摘要翻译： 用于通过弹性分组环（RPR）分发定时信息的分组是通过将同步状态消息（SSM）消息编码为IEEE 802.3ah OAM分组（或任何其他OAM分组，例如ITU Y.1731中定义的那些）来生成的。 指示每个消息围绕RPR环传送的方向的信息也被编码在SSM消息的备用位或IEEE 802.3ah OAM数据包的类型长度值（TLV）字节中的数据包中，或 Y.1731 OAM包。 对于携带SSM消息的报文，RPR保护被禁止，并且分组按照消息中编码的信息指定的方向发送到相邻的网络节点。 观察并比较指定定时质量和接收到的消息方向的接收分组中编码的信息，以确定包括在用于时钟定时的消息中的定时信息。

公开(公告)号：US20110096670A1

公开(公告)日：2011-04-28

申请号：US12607558

申请日：2009-10-28

申请人： Weiying Cheng ,  Chris R. Zettinger ,  Thomas T. Rarick

发明人： Weiying Cheng ,  Chris R. Zettinger ,  Thomas T. Rarick

IPC分类号： H04L12/56 ,  H04L12/26

CPC分类号： H04L45/22 ,  H04L12/4633 ,  H04L12/4641 ,  H04L41/0681 ,  H04L41/0816 ,  H04L45/586

摘要： To perform protection switching between tunnels in a network, Y.1731-based APS messages are often sent from a management system to nodes at the tunnels' end-points. If the management system is located near one node (local node) and far away from the other node (remote node), the APS message, which operates at the Ethernet service layer, travels to the remote node slower than traffic over the tunnels. This slower transmission time may prevent the remote node from performing a switch within a desired timeframe. The disclosed embodiments include a 1:1 bidirectional VLAN-based protection arrangement that accomplishes a 50 millisecond switching time without using Y.1731-based APS messages. The embodiments accomplish this by sending a switching command from the management system to the local node and modifying a message already traveling from the local node to the remote node to include a switching message that causes the remote node to perform the switch.

摘要翻译： 为了在网络中的隧道之间进行保护切换，基于Y.1731的APS消息通常从管理系统发送到隧道端点的节点。 如果管理系统位于一个节点（本地节点）附近并远离另一个节点（远程节点），则在以太网服务层运行的APS消息传播到远程节点比隧道上的流量慢。 这种较慢的传输时间可能会阻止远程节点在期望的时间范围内执行切换。 所公开的实施例包括在不使用基于Y.1731的APS消息的情况下实现50毫秒切换时间的基于VLAN的基于VLAN的保护布置。 这些实施例通过从管理系统向本地节点发送切换命令并修改已经从本地节点传播到远程节点的消息来包括使远程节点执行切换的切换消息来实现。

公开(公告)号：US20080259920A1

公开(公告)日：2008-10-23

申请号：US11787756

申请日：2007-04-17

申请人： Weiying Cheng ,  Chris R. Zettinger ,  Michael T. Moran ,  Gilbert A. Buescher ,  Kimberly A. Stoddard

发明人： Weiying Cheng ,  Chris R. Zettinger ,  Michael T. Moran ,  Gilbert A. Buescher ,  Kimberly A. Stoddard

IPC分类号： H04L12/56

CPC分类号： H04L12/437 ,  H04L12/4641

摘要： A method and corresponding apparatus allows multiple virtual switches in a physical switch to share one physical Resilient Packet Ring (RPR) in an RPR network. Modules in the multiple virtual switches add multicast information to traffic to direct the traffic along a common path to other physical switches on the ring, and modules in the virtual switches inspect traffic to determine whether the traffic is directed to the respective virtual switch. Multiple virtual RPR subrings are made available in a single physical ring, increasing usefulness of virtual switches formerly only able to support multiple tributary connections to other networks but not able to share a single ring network communications path. Sharing a single communications path increases overall network bandwidth, and at least one implementation allows for spatial reuse.

摘要翻译： 一种方法和相应的装置允许物理交换机中的多个虚拟交换机在RPR网络中共享一个物理弹性分组环（RPR）。 多个虚拟交换机中的模块向流量中添加组播信息，以将流量沿公共路径引导到环上的其他物理交换机，虚拟交换机中的模块检查流量以确定流量是否指向相应的虚拟交换机。 多个虚拟RPR子环在单个物理环中可用，增加了以前仅支持与其他网络的多个支路连接但不能共享单个环网通信路径的虚拟交换机的有用性。 共享单个通信路径增加了总体网络带宽，并且至少一个实现允许空间重用。

公开(公告)号：US09065759B2

公开(公告)日：2015-06-23

申请号：US13230521

申请日：2011-09-12

申请人： Weiying Cheng ,  Jonathan B. Sadler ,  Thomas J. Huber ,  Anoop John Mathew

发明人： Weiying Cheng ,  Jonathan B. Sadler ,  Thomas J. Huber ,  Anoop John Mathew

IPC分类号： H04L12/26 ,  H04L12/707

CPC分类号： H04L45/24 ,  H04L45/22

摘要： The embodiments disclosed herein provide a mechanism for sharing protection resources in an arbitrary network topology involving pre-computing the protection resources so that data-plane-based protection can be used to activate the protection resources upon detection of a failure, thus, providing faster switching times than typical control-plane-based solutions. This is accomplished by configuring a mesh network to include, for a working path in the network, one or more protection paths with the same end nodes as the working path, where each protection path includes at least one intermediate node that is not part of the working path. The intermediate node accepts a protection request from one of the end nodes and determines whether a local resource for a protection path is available. If the local resource is available, the intermediate node forwards the protection request along the protection path, but, if the local resource is unavailable, the intermediate node notifies the end node from which the protection request originated that the protection path is unavailable.

摘要翻译： 本文公开的实施例提供了一种用于在任意网络拓扑中共享保护资源的机制，其涉及预先计算保护资源，使得可以使用基于数据平面的保护来在检测到故障时激活保护资源，从而提供更快的切换 比典型的基于控制平面的解决方案。 这是通过配置网状网络来实现的，对于网络中的工作路径，包括具有与工作路径相同的端节点的一个或多个保护路径，其中每个保护路径包括至少一个不属于该路径的中间节点 工作路径 中间节点接受来自一个终端节点的保护请求，并确定保护路径的本地资源是否可用。 如果本地资源可用，则中间节点沿着保护路径转发保护请求，但是如果本地资源不可用，则中间节点通知保护请求发起的终端节点保护路径不可用。

公开(公告)号：US20130064073A1

公开(公告)日：2013-03-14

申请号：US13230521

申请日：2011-09-12

申请人： Weiying Cheng ,  Jonathan B. Sadler ,  Thomas J. Huber ,  Anoop John Mathew

发明人： Weiying Cheng ,  Jonathan B. Sadler ,  Thomas J. Huber ,  Anoop John Mathew

IPC分类号： H04L12/26

CPC分类号： H04L45/24 ,  H04L45/22

摘要： The embodiments disclosed herein provide a mechanism for sharing protection resources in an arbitrary network topology involving pre-computing the protection resources so that data-plane-based protection can be used to activate the protection resources upon detection of a failure, thus, providing faster switching times than typical control-plane-based solutions. This is accomplished by configuring a mesh network to include, for a working path in the network, one or more protection paths with the same end nodes as the working path, where each protection path includes at least one intermediate node that is not part of the working path. The intermediate node accepts a protection request from one of the end nodes and determines whether a local resource for a protection path is available. If the local resource is available, the intermediate node forwards the protection request along the protection path, but, if the local resource is unavailable, the intermediate node notifies the end node from which the protection request originated that the protection path is unavailable.

摘要翻译： 本文公开的实施例提供了一种用于在任意网络拓扑中共享保护资源的机制，其涉及预先计算保护资源，使得可以使用基于数据平面的保护来在检测到故障时激活保护资源，从而提供更快的切换 比典型的基于控制平面的解决方案。 这是通过配置网状网络来实现的，对于网络中的工作路径，包括具有与工作路径相同的端节点的一个或多个保护路径，其中每个保护路径包括至少一个不属于该路径的中间节点 工作路径 中间节点接受来自一个终端节点的保护请求，并确定保护路径的本地资源是否可用。 如果本地资源可用，则中间节点沿着保护路径转发保护请求，但是如果本地资源不可用，则中间节点通知保护请求发起的终端节点保护路径不可用。

公开(公告)号：US20080310437A1

公开(公告)日：2008-12-18

申请号：US11818760

申请日：2007-06-15

申请人： Weiying Cheng ,  Chris R. Zettinger ,  Eric L. Chan ,  Matthew S. Vrba

发明人： Weiying Cheng ,  Chris R. Zettinger ,  Eric L. Chan ,  Matthew S. Vrba

IPC分类号： H04L12/28

CPC分类号： H04L12/42 ,  H04L12/4641 ,  H04L45/50 ,  H04L2212/00

摘要： A method and corresponding apparatus allows unknown packet traffic, such as Ethernet traffic, to be carried on a Resilient Packet Ring (RPR) network without flooding the traffic on the RPR network. Modules in a station of the ring network compare a destination address in a packet traffic signal with known addresses and associate an identifier of a tunnel in the ring network with the packet traffic signal based on the comparison. The modules then associate with the packet traffic signal an identifier of a destination station in the ring network that corresponds to the identifier of the tunnel and forward the packet traffic signal to the destination station via the tunnel. By transmitting the packet traffic via tunnels instead of flooding the RPR network, spatial reuse may be implemented allowing the network to support a higher volume of traffic.

摘要翻译： 一种方法和相应的装置允许在弹性分组环（RPR）网络上携带诸如以太网业务的未知分组业务，而不会洪泛RPR网络上的业务。 环网的站中的模块将分组业务信号中的目的地址与已知地址进行比较，并根据比较将环网中的隧道的标识符与分组业务信号相关联。 然后，模块将分组业务信号与环网中对应于隧道的标识符的目的站的标识符相关联，并且经由隧道将分组业务信号转发到目的站。 通过经由隧道传输分组业务而不是洪泛RPR网络，可以实现空间重用，允许网络支持更大量的业务。