公开(公告)号：US06389015B1

公开(公告)日：2002-05-14

申请号：US09131538

申请日：1998-08-10

申请人： Jennifer Huang ,  Anis Khalil ,  Sridhar Nathan

发明人： Jennifer Huang ,  Anis Khalil ,  Sridhar Nathan

IPC分类号： H04L1243

CPC分类号： H04L12/422 ,  H04J2203/0042 ,  H04J2203/0055 ,  H04J2203/0098

摘要： A method of and system for managing a SONET ring computes an optimally balanced demand loading for the SONET ring and generates an updated time slot assignment map for each node of the SONET ring based upon the optimally balanced demand loading. The method causes each node of the SONET ring to switch substantially simultaneously to its updated time slot assignment map, thereby reconfiguring the SONET ring.

摘要翻译： 用于管理SONET环的方法和系统针对SONET环计算最佳平衡的需求负载，并基于最佳平衡的需求负载为SONET环的每个节点生成更新的时隙分配映射。 该方法使SONET环的每个节点基本上同时切换到其更新的时隙分配映射，从而重新配置SONET环。

公开(公告)号：US06295146B1

公开(公告)日：2001-09-25

申请号：US09006962

申请日：1998-01-14

申请人： Sridhar Nathan ,  John A. Fee

发明人： Sridhar Nathan ,  John A. Fee

IPC分类号： H04B1020

CPC分类号： H04Q11/0062 ,  G06F11/2007 ,  H04B10/032 ,  H04J3/085 ,  H04J14/0283 ,  H04J14/0286 ,  H04J14/0295 ,  H04L1/22 ,  H04L41/0663 ,  H04Q2011/0081 ,  H04Q2011/0092

摘要： A system and method for sharing a spare channel among two or more optical ring networks that have a common span. A first optical cross-connect switch (OCCS) and a first OCCS controller are placed at one end of the span and a second OCCS and OCCS controller are placed at the other end of the span. The first OCCS and the first OCCS controller are coupled to a first ADM from each optical ring, and the second OCCS and the second OCCS controller are coupled to a second ADM from each optical ring. The first OCCS controller receives alarm indications from each ADM that it is coupled to that senses a ring failure. The second OCCS controller receives alarm indications from each ADM that it is coupled to that senses a ring failure. Upon receiving an alarm indication, the first OCCS controller directs the first OCCS to optically couple the ADM that originated the alarm indication to the spare channel, and the second OCCS controller directs the second OCCS to optically couple the ADM that originated the alarm indication to the spare channel.

摘要翻译： 一种用于在具有公共跨度的两个或多个光环网之间共享备用信道的系统和方法。 第一个光交叉连接开关（OCCS）和第一个OCCS控制器放置在跨距的一端，第二个OCCS和OCCS控制器放置在跨距的另一端。 第一OCCS和第一OCCS控制器从每个光环耦合到第一ADM，并且第二OCCS和第二OCCS控制器从每个光环耦合到第二ADM。 第一个OCCS控制器从每个ADM接收与其耦合的报警指示，以感测环路故障。 第二个OCCS控制器从每个ADM接收到与其耦合的报警指示，以感测环路故障。 在接收到报警指示时，第一个OCCS控制器指示第一个OCCS将发出报警指示的ADM光学耦合到备用通道，而第二个OCCS控制器指示第二个OCCS将发出报警指示的ADM光学耦合到 备用通道。

公开(公告)号：US6052210A

公开(公告)日：2000-04-18

申请号：US6969

申请日：1998-01-14

申请人： Sridhar Nathan

发明人： Sridhar Nathan

IPC分类号： H04B10/032 ,  H04B10/27 ,  H04B10/275 ,  H04L12/70 ,  H04Q11/00 ,  H04B10/20

CPC分类号： H04B10/27 ,  H04B10/032 ,  H04B10/275 ,  H04Q11/0062 ,  H04L2012/5612 ,  H04L2012/5627

摘要： A system and method for increasing the robustness of an optical ring network having a plurality of ring nodes. Optical data traffic is transmitted between a plurality of ring nodes via optical links. A first optical cross connect switch and a second optical cross connect switch are coupled to an alternate network. The first optical cross connect switch is coupled to a first ring node. The second optical cross connect switch is coupled to a second ring node. When a failure is detected in the first optical link, then the first optical cross connect switch couples the first ring node to an alternate path of the alternate network, and the second optical cross connect switch couples the second ring node to the alternate path, such that optical data traffic is transmitted between the first ring node and the second ring node via the alternate path.

摘要翻译： 一种用于增加具有多个环形节点的光环网络的鲁棒性的系统和方法。 光数据业务经由光链路在多个环节点之间传输。 第一光交叉连接开关和第二光交叉连接开关耦合到备用网络。 第一光交叉连接开关耦合到第一环节点。 第二光交叉连接开关耦合到第二环形节点。 当在第一光链路中检测到故障时，第一光交叉连接交换机将第一环节点耦合到替代网络的备用路径，并且第二光交叉连接交换机将第二环节点耦合到备用路径， 光数据业务在第一环节点和第二环节点之间经由备用路径传输。

公开(公告)号：US6038044A

公开(公告)日：2000-03-14

申请号：US26943

申请日：1998-02-20

申请人： John A. Fee ,  Sridhar Nathan

发明人： John A. Fee ,  Sridhar Nathan

IPC分类号： H04B10/27 ,  H04B10/275 ,  H04L12/70 ,  H04Q3/52 ,  H04Q11/00 ,  H04J14/00 ,  H04B10/08 ,  H04B10/20 ,  H04J14/02

CPC分类号： H04Q11/0062 ,  H04B10/27 ,  H04B10/271 ,  H04B10/275 ,  H04J14/0283 ,  H04J14/0284 ,  H04J14/0295 ,  H04L2012/5627

摘要： A plurality of optical cross-connect switches are freely interconnected to form a mesh type network. At least three of the optical cross-connect switches are switched to form a line-switched ring network, thereby forming a ring/mesh network. Simply by changing the switching logic of the optical cross-connect switches within the ring/mesh network, new rings can be created and existing rings can be modified, thereby providing a great deal of flexibility to make changes to the network as traffic patterns change without incurring hardware costs or significant network downtime. Another advantage of the ring/mesh design approach is that spare capacity within the line-switched ring can be utilized by the mesh network, and spare capacity within the mesh network can be utilized by the line-switched ring, thereby significantly increasing the spare efficiency.

摘要翻译： 多个光学交叉连接开关自由地互连以形成网状网络。 至少三个光交叉连接交换机被切换以形成线路交换环网，从而形成环/网络网络。 简单地说，通过改变环/网状网络内的交叉连接交换机的交换逻辑，可以创建新的环，并修改现有的环，从而提供了很大的灵活性，因为流量模式发生变化 导致硬件成本或重大的网络停机时间。 环/网设计方法的另一个优点是网络网络可以利用线路交换环内的备用容量，并且网络网络中的备用容量可以被线路交换环使用，从而显着提高备用效率 。

公开(公告)号：US5870212A

公开(公告)日：1999-02-09

申请号：US6965

申请日：1998-01-14

申请人： Sridhar Nathan ,  John A. Fee

发明人： Sridhar Nathan ,  John A. Fee

IPC分类号： H04B10/20 ,  H04B10/02 ,  H04L12/437 ,  H04Q11/00 ,  H04J14/00

CPC分类号： H04Q11/0062 ,  H04J14/0283 ,  H04J14/0295 ,  H04L12/437 ,  H04J14/0286 ,  H04Q2011/0039 ,  H04Q2011/0081 ,  H04Q2011/0092

摘要： A self-healing optical network carrying traffic between first and second optical linear terminals. The self-healing optical network including first, second, and third optical switching units, first, second, and third spare optical channels, and a working optical channel. The first, second, and third optical switching units are coupled in a ring configuration using said first, second, and third spare optical channels. The first and second optical switching units are coupled by the first spare optical channel and by the working optical channel. The first and second optical switching units each direct the traffic between the first and second optical linear terminals along the working optical channel or along the second and third spare optical channels in the event the working optical channel is not available.

摘要翻译： 在第一和第二光学线性终端之间承载业务的自愈光网络。 包括第一，第二和第三光开关单元，第一，第二和第三备用光通道的自愈光网络以及工作光通道。 第一，第二和第三光交换单元使用所述第一，第二和第三备用光信道以环形配置耦合。 第一和第二光开关单元由第一备用光通道和工作光通道耦合。 在工作光信道不可用的情况下，第一和第二光交换单元各自沿着工作光信道或沿第二和第三备用光信道引导第一和第二光线性终端之间的业务。