公开(公告)号：US09712899B2

公开(公告)日：2017-07-18

申请号：US14567328

申请日：2014-12-11

Applicant: Alcatel-Lucent USA Inc.

Inventor： Marcus Weldon ,  Aref Chowdhury

IPC: H04J14/00 ,  H04Q11/00 ,  H04J14/02

CPC classification number: H04Q11/0003 ,  H04J14/02 ,  H04J14/0212 ,  H04J14/0213 ,  H04Q11/0062 ,  H04Q2011/0075

Abstract: We disclose a hybrid optical switch configured to switch optical channels based on their respective utilization factors. In an example embodiment, optical channels having relatively low utilization factors are unwrapped down to payload units, which are then switched electrically, e.g., using an Optical-Transport-Network (OTN) switch, in a manner that tends to increase the utilization factors of the optical channels that carry the switched payload units. In contrast, optical channels having relatively high utilization factors are switched optically, e.g., using a reconfigurable optical add/drop multiplexer, without being unwrapped. The hybrid optical switch may advantageously be deployed in a network node subjected to relatively high traffic-volume fluctuations because the switch tends to improve optical-channel utilization when the traffic volume is relatively low and to decrease the workload of the corresponding OTN switch when the traffic volume is relatively high.

公开(公告)号：US20160173964A1

公开(公告)日：2016-06-16

申请号：US14567328

申请日：2014-12-11

Applicant: ALCATEL-LUCENT USA INC.

Inventor： Marcus Weldon ,  Aref Chowdhury

IPC: H04Q11/00 ,  H04J14/02

CPC classification number: H04Q11/0003 ,  H04J14/02 ,  H04J14/0212 ,  H04J14/0213 ,  H04Q11/0062 ,  H04Q2011/0075

Abstract: We disclose a hybrid optical switch configured to switch optical channels based on their respective utilization factors. In an example embodiment, optical channels having relatively low utilization factors are unwrapped down to payload units, which are then switched electrically, e.g., using an Optical-Transport-Network (OTN) switch, in a manner that tends to increase the utilization factors of the optical channels that carry the switched payload units. In contrast, optical channels having relatively high utilization factors are switched optically, e.g., using a reconfigurable optical add/drop multiplexer, without being unwrapped. The hybrid optical switch may advantageously be deployed in a network node subjected to relatively high traffic-volume fluctuations because the switch tends to improve optical-channel utilization when the traffic volume is relatively low and to decrease the workload of the corresponding OTN switch when the traffic volume is relatively high.

Abstract translation: 我们公开了一种配置为基于它们各自的利用因素来切换光信道的混合光开关。 在示例实施例中，具有相对低的利用因子的光信道被解包为有效载荷单元，然后这些单元以例如使用光传输网络（OTN）交换机的方式进行电路交换，其倾向于增加利用因子 携带有效载荷单元的光信道。 相比之下，具有较高利用率因素的光通道在光学上被切换，例如使用可重新配置的光分插复用器，而不被展开。 混合光交换机可以有利地部署在遭受相对高的业务量体积波动的网络节点中，因为当业务量相对较低时交换机倾向于改善光信道利用，并且当业务量降低时相应的OTN交换机的工作量 音量相对较高。