公开(公告)号：US20080008085A1

公开(公告)日：2008-01-10

申请号：US11428627

申请日：2006-07-05

申请人： Ornan Gerstel

发明人： Ornan Gerstel

IPC分类号： H04J1/16

CPC分类号： H04L12/14 ,  H04L12/1485 ,  H04L41/5003 ,  H04L41/5022 ,  H04L43/0811 ,  H04L45/28 ,  H04L47/2425 ,  H04L47/245 ,  H04L67/14 ,  H04L69/40

摘要： Even though network connections have priorities for reconnection and preemption of other connections upon a failure, these priorities are fixed based on the Service Level Agreement (SLA) between the Service Provider and the customer, and do not depend on the actual outage time, or downtime, during the operation of the network. Only a fixed pecking order for reconnection is guaranteed. Therefore they cannot ensure the outage a connection which experiences downtimes limited to the SLA. With the present invention, the priorities of the network connections are determined responsive to the failures of the network connections. The priorities of the network connections can also be determined responsive to the permitted downtime of the connections to better meet the SLA of the connection. Another factor in varying a network connection priority can be the expected downtime of a connection.

摘要翻译： 即使网络连接具有重新连接和故障时其他连接抢占的优先级，这些优先级是基于服务提供商和客户之间的服务级别协议（SLA）来确定的，而不依赖于实际停电时间或停机时间 ，在网络运行期间。 只有确定重新连接的啄食顺序得到保证。 因此，他们无法确保中断与SLA相关的停机时间。 利用本发明，响应于网络连接的故障来确定网络连接的优先级。 也可以根据连接的允许的停机时间来确定网络连接的优先级，以更好地满足连接的SLA。 改变网络连接优先级的另一个因素可能是连接的预期停机时间。

公开(公告)号：US20070104483A1

公开(公告)日：2007-05-10

申请号：US11532903

申请日：2006-09-18

申请人： John Carrick ,  Mark Oppenheimer ,  Rajiv Ramaswami ,  Ornan Gerstel

发明人： John Carrick ,  Mark Oppenheimer ,  Rajiv Ramaswami ,  Ornan Gerstel

IPC分类号： H04B10/08

CPC分类号： H04Q11/0062 ,  H04B10/0773 ,  H04B10/0793 ,  H04B2210/075 ,  H04Q2011/0083 ,  H04Q2011/0088

摘要： Methods and apparatus for managing an optical network using pilot tones are provided. One method includes selecting an optical path having a plurality of nodes from a database defining an expected optical network. A detected list of pilot tones associated with each node of the selected optical path is generated. An expected list of pilot tones associated with each node of the selected optical path is generated. The detected and expected lists are compared to identify any mismatched nodes.

摘要翻译： 提供了使用导频音来管理光网络的方法和装置。 一种方法包括从定义预期光网络的数据库中选择具有多个节点的光路。 产生与所选光路的每个节点相关联的检测到的导频音的列表。 生成与所选光路的每个节点相关联的导频音调的预期列表。 将检测到的和预期的列表进行比较以识别任何不匹配的节点。

公开(公告)号：US20060269282A1

公开(公告)日：2006-11-30

申请号：US11497390

申请日：2006-08-02

申请人： Ornan Gerstel

发明人： Ornan Gerstel

IPC分类号： H04B10/08

CPC分类号： H04Q11/0062 ,  H04J14/0279 ,  H04J14/0295 ,  H04Q2011/0081 ,  H04Q2011/0083

摘要： A communication network comprising at least one first terminal, at least one second terminal, a plurality of links, and at least first and second nodes. The first node is bidirectionally coupled to the first terminal through at least a first one of the links, and also is bidirectionally coupled to the second terminal through at least a second link and the second node. Preferably, the first node comprises a plurality of communication paths, each of which is coupled at a first end thereof to at least one corresponding first link. Second ends of the communication paths are all coupled to the second link, through a multiplexing device, and route signals between the first and second links. The first node also preferably comprises at least one alternate communication path having a first end coupled through the multiplexing device to the second link, at least one switch that is coupled to the alternate communication path, and a detector for detecting a failure in at least one of the communication paths. A controller is coupled to the detector and the switch. The controller is responsive to the detector detecting a failure in at least one of the communication paths for controlling the switch to couple the alternate communication path to a corresponding first link, thereby enabling a signal to be routed between that first link and the second link through the alternate communication path.

公开(公告)号：US20060177225A1

公开(公告)日：2006-08-10

申请号：US11051699

申请日：2005-02-04

申请人： Loukas Paraschis ,  James Theodoras ,  Ornan Gerstel

发明人： Loukas Paraschis ,  James Theodoras ,  Ornan Gerstel

IPC分类号： H04J14/02

CPC分类号： H04J14/02 ,  H04B10/504 ,  H04B10/58 ,  H04J14/0204 ,  H04J14/0212 ,  H04J14/0221 ,  H04J14/0227 ,  H04J14/0246 ,  H04J14/0279

摘要： In a WDM optical network DML signals are sideband filtered to compensate for chirp with a feedback loop carrying signals from a monitor unit which helps maintain the sideband filter offset from a peak output of the DMLs. Network components with filtering characteristics, such as AWGs, can be used as the sideband filters. The monitor units monitor the Q-factors or BERs of the filtered signals and the sideband offset is maintained by temperature control of the sideband filters with respect to the DMLs.

摘要翻译： 在WDM光网络中，DML信号是边带滤波的，以补偿带有来自监视器单元的信号的反馈环路的啁啾，这有助于维持边带滤波器偏离DML的峰值输出。 具有滤波特性的网络组件（如AWG）可用作边带滤波器。 监视器单元监视滤波信号的Q因子或BER，并且通过侧带滤波器相对于DML的温度控制来维持边带偏移。

公开(公告)号：US07054262B2

公开(公告)日：2006-05-30

申请号：US10809987

申请日：2004-03-26

申请人： Ornan Gerstel

发明人： Ornan Gerstel

IPC分类号： H04L12/16

CPC分类号： H04L45/28 ,  H04J2203/006 ,  H04L41/0663 ,  H04L45/22

摘要： Systems and methods provide very fast protection switching while leaving selected traffic unprotected. When a link fails, only certain pre-selected paths are rerouted at the point of failure. Other traffic is left unprotected or protected at another layer. Signaling of the failure and the rerouting is performed for the link as a whole rather than for the individual paths. Signaling occurs at a first layer of a digital transmission hierarchy while path rerouting switching occurs at a second hierarchical layer above the first layer. In certain implementations, K1/K2 bytes are used in signaling at the optical line layer (OC-n), while only protected High-Order paths (STS) and Low-Order paths (VT) are protected by the protection switch.

摘要翻译： 系统和方法提供非常快速的保护切换，同时保留所选流量不受保护。 当链路发生故障时，只有某些预先选择的路径在故障点被重新路由。 其他流量在另一层保持不受保护或保护。 对于整个链路而不是针对各个路径执行故障和重新路由的信令。 信令发生在数字传输层次的第一层，而路径重路由切换发生在第一层以上的第二层。 在某些实现中，K1 / K2字节用于光线路层（OC-n）的信令，而只有受保护的高阶路径（STS）和低阶路径（VT）被保护开关保护。

公开(公告)号：US20060018592A1

公开(公告)日：2006-01-26

申请号：US11234497

申请日：2005-09-23

申请人： Philip Lin ,  Paul Green ,  Ornan Gerstel

发明人： Philip Lin ,  Paul Green ,  Ornan Gerstel

IPC分类号： G02B6/26

CPC分类号： H04Q11/00 ,  G02B6/3544 ,  G02B6/356 ,  H04Q11/0005 ,  H04Q2011/0024 ,  H04Q2011/0056 ,  H04Q2011/0073

摘要： A switch core is set forth that comprises a plurality of duplex switches that are interconnected with a interconnection fabric to implement, for example, strictly non-blocking operation of the switch core for reciprocal traffic. In one embodiment, an N-way reciprocal switch is implemented. The N-way reciprocal switch comprises a plurality of duplex switches numbering N of at least a 1×(N−1) switch type (e.g., the duplex switches have at least N−1 ports available for connection to implement the interconnection fabric). The interconnection fabric interconnects the plurality of duplex switches so that each duplex switch is connected to every other duplex switch used in the interconnection fabric by a single connection. A similar architecture using switches numbering N of at least a 1×N switch type are also set forth. Still further, a plurality of duplex switches are used to implement an (n,m)-way switch that, in turn, can be used to construct a recursive LM-way switch core and/or recursively expand an existing Clos switch core.

摘要翻译： 提出了一种交换机核心，其包括与互连结构互连的多个双工交换机，以实现用于交互业务的交换机核心的严格无阻塞操作。 在一个实施例中，实现了N路互逆开关。 N路互换交换机包括编号为至少1x（N-1）交换机类型的多个双工交换机（例如，双工交换机具有至少可用于连接的N-1个端口以实现互连结构）。 互连结构互连多个双工交换机，使得每个双工交换机通过单个连接连接到互连结构中使用的每个其他双工交换机。 还阐述了使用编号为至少1xN交换机类型的交换机的类似架构。 此外，多个双工交换机用于实现（n，m）交换机，其又可以用于构建递归LM路转交换核心和/或递归地扩展现有的Clos交换机核心。