公开(公告)号：US20130003528A1

公开(公告)日：2013-01-03

申请号：US13175580

申请日：2011-07-01

申请人： Guoliang Wu ,  Ladan S. Pickering ,  Chenjiang Hu ,  Si Long Ho ,  David Traylor ,  Rajnath Singh

发明人： Guoliang Wu ,  Ladan S. Pickering ,  Chenjiang Hu ,  Si Long Ho ,  David Traylor ,  Rajnath Singh

IPC分类号： H04L12/26

CPC分类号： H04L41/0816 ,  H04L43/0817 ,  H04L49/552

摘要： In one embodiment, a method for telecommunications includes determining the operational state of a first network switch, determining the operational state of a second network switch, determining the existence of an actionable condition, accessing information on the first switch, and changing the operational state of the first switch. The second network switch is coupled to the first network switch by a protected path. Determining the actionable condition and changing the operational state use references to the operational state of the first network switch, the operational state of the second network switch, and the actionable condition.

摘要翻译： 在一个实施例中，一种用于电信的方法包括：确定第一网络交换机的操作状态，确定第二网络交换机的操作状态，确定可操作条件的存在，访问第一交换机上的信息，以及改变操作状态 第一个开关。 第二网络交换机通过受保护的路径耦合到第一网络交换机。 确定可操作状态和改变操作状态使用对第一网络交换机的操作状态，第二网络交换机的操作状态和可操作条件的引用。

公开(公告)号：US09013977B2

公开(公告)日：2015-04-21

申请号：US13156071

申请日：2011-06-08

申请人： Rajnath Singh ,  Guoliang Wu ,  David Traylor ,  Si Long Ho ,  Chenjiang Hu ,  Ladan S. Pickering

发明人： Rajnath Singh ,  Guoliang Wu ,  David Traylor ,  Si Long Ho ,  Chenjiang Hu ,  Ladan S. Pickering

IPC分类号： H04L12/26 ,  H04L1/00 ,  H04B10/032 ,  H04L12/933 ,  H04L12/707 ,  H04L12/703

CPC分类号： H04B10/032 ,  H04L45/22 ,  H04L45/28 ,  H04L49/101

摘要： A method may include: (i) in response to clearing of a fault on a working path of a protection switching group to which a first network element is interfaced: (a) transitioning, by the first network element, its state to a first state in which a protection path of the protection switching group is active; and (b) initiating, by the first network element, a wait to restore timer, the wait to restore timer having a duration such that upon expiration of the timer, the first network element is configured to switch the working path to active; and (ii) in response to receiving a message from a second network element interfaced to the protection switching group indicating that a failure has occurred on the working path: (a) maintaining, by the first network element, its state in the first state; and (b) continuing, by the first network element, the wait to restore timer.

摘要翻译： 一种方法可以包括：（i）响应于清除第一网络元件所连接到的保护交换组的工作路径上的故障：（a）由第一网络元件将其状态转换到第一状态 其中保护切换组的保护路径是活动的; 以及（b）由所述第一网元启动等待恢复定时器，所述等待恢复定时器具有这样的持续时间，使得在所述定时器到期时，所述第一网元被配置为将所述工作路径切换为活动; 以及（ii）响应于从所述保护交换组接收到指示在所述工作路径上发生故障的第二网元的消息：（a）由所述第一网络元件维持其处于所述第一状态的状态; 和（b）由第一网元继续等待恢复定时器。

公开(公告)号：US20120315030A1

公开(公告)日：2012-12-13

申请号：US13156071

申请日：2011-06-08

申请人： Rajnath Singh ,  Guoliang Wu ,  David Traylor ,  Si Long Ho ,  Chenjiang Hu ,  Ladan S. Pickering

发明人： Rajnath Singh ,  Guoliang Wu ,  David Traylor ,  Si Long Ho ,  Chenjiang Hu ,  Ladan S. Pickering

IPC分类号： H04B10/08

CPC分类号： H04B10/032 ,  H04L45/22 ,  H04L45/28 ,  H04L49/101

摘要： A method may include: (i) in response to clearing of a fault on a working path of a protection switching group to which a first network element is interfaced: (a) transitioning, by the first network element, its state to a first state in which a protection path of the protection switching group is active; and (b) initiating, by the first network element, a wait to restore timer, the wait to restore timer having a duration such that upon expiration of the timer, the first network element is configured to switch the working path to active; and (ii) in response to receiving a message from a second network element interfaced to the protection switching group indicating that a failure has occurred on the working path: (a) maintaining, by the first network element, its state in the first state; and (b) continuing, by the first network element, the wait to restore timer.

摘要翻译： 一种方法可以包括：（i）响应于清除第一网络元件所连接到的保护交换组的工作路径上的故障：（a）由第一网络元件将其状态转换到第一状态 其中保护切换组的保护路径是活动的; 以及（b）由所述第一网元启动等待恢复定时器，所述等待恢复定时器具有这样的持续时间，使得在所述定时器到期时，所述第一网元被配置为将所述工作路径切换为活动; 以及（ii）响应于从所述保护交换组接收到指示在所述工作路径上发生故障的第二网元的消息：（a）由所述第一网络元件维持其处于所述第一状态的状态; 和（b）由第一网元继续等待恢复定时器。

公开(公告)号：US20120195190A1

公开(公告)日：2012-08-02

申请号：US13360300

申请日：2012-01-27

申请人： Rajnath Singh ,  Guoliang Wu ,  David Traylor ,  Si Long Ho

发明人： Rajnath Singh ,  Guoliang Wu ,  David Traylor ,  Si Long Ho

IPC分类号： H04L12/24

CPC分类号： H04L45/22 ,  H04L45/28

摘要： A method for solving communication failure includes transmitting user traffic over an automatic protection switching (“APS”) connection between a near network node and a far network node, determining that a protect path on the APS connection has failed, sending a message to the far network node that the protect path has failed, and switching user traffic to the working path at the near network node.

摘要翻译： 用于解决通信故障的方法包括通过近网络节点和远网络节点之间的自动保护切换（“APS”）连接发送用户业务，确定APS连接上的保护路径已经失败，向远端发送消息 网络节点，保护路径失败，并将用户流量切换到近网络节点的工作路径。

公开(公告)号：US20120195186A1

公开(公告)日：2012-08-02

申请号：US13360265

申请日：2012-01-27

申请人： Rajnath Singh ,  Guoliang Wu ,  David Traylor

发明人： Rajnath Singh ,  Guoliang Wu ,  David Traylor

IPC分类号： H04L12/26

CPC分类号： H04L45/22 ,  H04L45/28

摘要： A method for preventing traffic loss includes transmitting user traffic over an automatic protection switching (“APS”) connection with revertive operation between a first switch and a second switch, determining that the working path on the APS connection has failed, moving user traffic to the protect path of the APS connection, and initiating a wait-to-restore mode including a wait-to-restore time period associated with the first switch. The method also includes, upon termination of the wait-to-restore time period of the first switch, maintaining traffic on the protect path until a message designating the working path is received on the protect path. The method further includes, upon receiving a message designating the working path, switching user traffic to the working path. The APS connection includes the protect path and the working path.

摘要翻译： 一种用于防止流量损失的方法包括通过在第一交换机和第二交换机之间的回复操作的自动保护切换（“APS”）连接来发送用户业务，确定APS连接上的工作路径已经失败，将用户业务移动到 保护APS连接的路径，以及发起包括与第一交换机相关联的等待恢复时间段的等待恢复模式。 该方法还包括在第一交换机的等待恢复时间段结束时，保持保护路径上的业务，直到在保护路径上接收到指定工作路径的消息。 该方法还包括：在接收到指定工作路径的消息时，将用户业务切换到工作路径。 APS连接包括保护路径和工作路径。

公开(公告)号：US20060056425A1

公开(公告)日：2006-03-16

申请号：US10942016

申请日：2004-09-15

申请人： Guoliang Wu ,  Srinivas Vunnava ,  Thomas Brown ,  David Colven

发明人： Guoliang Wu ,  Srinivas Vunnava ,  Thomas Brown ,  David Colven

IPC分类号： H04L12/56 ,  H04L12/54

CPC分类号： H04L12/433 ,  H04L12/462

摘要： A method for bridging traffic over a network includes receiving, at stations that are coupled to the network, forwarding information for remote devices that are coupled to the network via the stations. The forwarding information associates a remote address of each remote device with an address of one of the stations. Each station that receives the forwarding information stores the forwarding information in a forwarding database. The method also includes receiving traffic at a first station from a first remote device that is coupled to the first station. The traffic includes a destination address that is a remote address of a second remote device that is coupled to a second station of the network. Furthermore, the method includes identifying an address of the second station that is associated with the remote address of the second remote device in the forwarding database. The method also includes communicating the traffic directly to the second station using the identified address.

摘要翻译： 用于桥接网络上的业务的方法包括：在耦合到所述网络的站处接收经由所述站耦合到所述网络的远程设备的转发信息。 转发信息将每个远程设备的远程地址与其中一个站的地址相关联。 接收转发信息的每个站将转发信息存储在转发数据库中。 该方法还包括从耦合到第一站的第一远程设备接收在第一站处的业务。 流量包括作为耦合到网络的第二站的第二远程设备的远程地址的目的地地址。 此外，该方法包括识别与转发数据库中的第二远程设备的远程地址相关联的第二站的地址。 该方法还包括使用所识别的地址将业务直接传送到第二站。

公开(公告)号：US06477167B1

公开(公告)日：2002-11-05

申请号：US09325504

申请日：1999-06-03

申请人： Guoliang Wu

发明人： Guoliang Wu

IPC分类号： H04L1256

CPC分类号： H04L12/5602 ,  H04L2012/5616 ,  H04L2012/5632 ,  H04L2012/5647 ,  H04Q11/0478

摘要： A method for allocating transmission bandwidth to a group of real-time variable bit rate connections includes determining an acceptable cell loss probability for a real-time variable bit rate group based on quality of service requirements for real-time variable bit rate connections in the real-time variable bit rate group. An allocation bandwidth is determined for the real-time variable bit rate group from a probability density function of an aggregate cell arrival rate for the real-time variable bit rate group. The allocation bandwidth is the bandwidth that the probability of the aggregate cell arrival rate exceeding the bandwidth is less than or at least substantially equal to the acceptable cell loss probability.

摘要翻译： 用于将传输带宽分配给一组实时可变比特率连接的方法包括基于实际可变比特率连接的服务质量要求来确定实时可变比特率组的可接受的小区丢失概率 时间可变比特率组。 根据实时可变比特率组的聚合小区到达率的概率密度函数，为实时可变比特率组确定分配带宽。 分配带宽是聚合小区到达速率超过带宽的概率小于或至少基本上等于可接受的小区丢失概率的带宽。

公开(公告)号：US07697436B2

公开(公告)日：2010-04-13

申请号：US11675508

申请日：2007-02-15

申请人： Guoliang Wu ,  Zhao Yang

发明人： Guoliang Wu ,  Zhao Yang

IPC分类号： H04L12/26

CPC分类号： H04L49/254 ,  H04L47/2441 ,  H04L47/52

摘要： In certain embodiments, a method for bandwidth allocation includes receiving at least a first traffic flow and a second traffic flow, each traffic flow including at least committed information rate (CIR) and excess information rate (EIR) parameters. The CIR parameter in each traffic flow is associated with a corresponding guaranteed pass-through rate. The first traffic flow and the second traffic flow are stored in first and second queues, respectively. The first queue is associated with a first provisioned weight, and the second queue is associated with a second provisioned weight. The method further includes scheduling downstream transmission of the first traffic flow and second traffic flow stored in the first and second queues according to at least first and second implementation weights that are determined based on a bandwidth of a downstream communication link, a CIR parameter of the first queue, a CIR parameter of the second queue, and each of the first and second provisioned weights.

摘要翻译： 在某些实施例中，用于带宽分配的方法包括至少接收第一业务流和第二业务流，每个业务流至少包括承诺信息速率（CIR）和超量信息速率（EIR）参数。 每个流量中的CIR参数与相应的保证通过率相关联。 第一个业务流和第二个业务流分别存储在第一和第二个队列中。 第一队列与第一配置权重相关联，并且第二队列与第二配置权重相关联。 该方法还包括：根据基于下游通信链路的带宽确定的至少第一和第二实施权重来调度存储在第一和第二队列中的第一业务流和第二业务流的下行传输， 第一队列，第二队列的CIR参数以及第一和第二配置权重中的每一个。

公开(公告)号：US06665301B1

公开(公告)日：2003-12-16

申请号：US09325497

申请日：1999-06-03

申请人： Guoliang Wu

发明人： Guoliang Wu

IPC分类号： H04L1228

CPC分类号： H04L12/5602 ,  H04L2012/5651 ,  H04L2012/5679 ,  H04Q11/0478

摘要： In accordance with one embodiment of the present invention, a map of transmission slots for a port of a network element includes a plurality of hierarchical sets of port transmission slots. The hierarchical sets include a plurality of parent sets. Each parent set has its port transmission slots divided between a plurality of child sets. The child sets include interleaved port transmission slots.

摘要翻译： 根据本发明的一个实施例，网络元件的端口的传输时隙的映射包括多个分层的端口传输时隙集合。 分层集合包括多个父集合。 每个父集合具有在多个子集之间划分的端口传输时隙。 子集包含交错的端口传输时隙。

公开(公告)号：US06442164B1

公开(公告)日：2002-08-27

申请号：US09325695

申请日：1999-06-03

申请人： Guoliang Wu

发明人： Guoliang Wu

IPC分类号： H04L1228

CPC分类号： H04L12/5602 ,  H04L2012/5632 ,  H04L2012/5649 ,  H04L2012/5651 ,  H04Q11/0478

摘要： A method for allocating transmission resources to a constant rate connection includes determining a maximum cell clumping value for a constant rate connection based on a peak cell rate and a cell delay variation tolerance for the constant rate connection. An allocation bandwidth is determined for the constant rate connection based on the maximum cell clumping value. The allocation bandwidth comprises the bandwidth at which no cells of the constant rate connection are lost and the cell delay variation tolerance for the constant rate connection is satisfied. The allocation bandwidth is allocated at a network element for transmission of the constant rate connection.

摘要翻译： 用于将传输资源分配给恒定速率连接的方法包括基于恒定速率连接的峰值信元速率和信元延迟变化公差来确定恒定速率连接的最大信元聚集值。 基于最大单元格聚集值为恒定速率连接确定分配带宽。 分配带宽包括不存在恒定速率连接的小区不能满足恒定速率连接的小区延迟变化容限的带宽。 分配带宽被分配在用于传输恒定速率连接的网络元件。