公开(公告)号：US20130011136A1

公开(公告)日：2013-01-10

申请号：US13350457

申请日：2012-01-13

申请人： Fang Hao ,  Muralidharam S. Kodialam ,  Tirunell V. Lakshman ,  Haoyu Song ,  Martin Zimgibl

发明人： Fang Hao ,  Muralidharam S. Kodialam ,  Tirunell V. Lakshman ,  Haoyu Song ,  Martin Zimgibl

IPC分类号： H04J14/00

CPC分类号： H04B10/032 ,  H04B10/038 ,  H04B10/27 ,  H04L1/22 ,  H04Q11/00

摘要： A manner of providing redundancy protection for a data center network that is both reliable and low-cost. In a data center network where the data traffic between numerous access nodes and a network core layer via primary aggregation nodes, an optical network device such as and OLT (optical line terminal) is provided as a backup aggregation node for one or more of the primary aggregation nodes. When a communication path through a primary aggregation node fails, traffic is routed through the optical network device. In a preferred embodiment, a communication link is formed from a plurality of access nodes to a single port of the OLT or other optical network device via an optical splitter that combines upstream transmissions and distributes downstream transmissions. The upstream transmissions from the plurality of access nodes may occur according to an allocation schedule generated when the backup aggregation node is needed.

公开(公告)号：US09066160B2

公开(公告)日：2015-06-23

申请号：US13350457

申请日：2012-01-13

申请人： Fang Hao ,  Muralidharam S. Kodialam ,  Tirunell V. Lakshman ,  Haoyu Song ,  Martin Zimgibl

发明人： Fang Hao ,  Muralidharam S. Kodialam ,  Tirunell V. Lakshman ,  Haoyu Song ,  Martin Zimgibl

IPC分类号： H04B10/00 ,  H04Q11/00

CPC分类号： H04B10/032 ,  H04B10/038 ,  H04B10/27 ,  H04L1/22 ,  H04Q11/00

摘要： A manner of providing redundancy protection for a data center network that is both reliable and low-cost. In a data center network where the data traffic between numerous access nodes and a network core layer via primary aggregation nodes, an optical network device such as and OLT (optical line terminal) is provided as a backup aggregation node for one or more of the primary aggregation nodes. When a communication path through a primary aggregation node fails, traffic is routed through the optical network device. In a preferred embodiment, a communication link is formed from a plurality of access nodes to a single port of the OLT or other optical network device via an optical splitter that combines upstream transmissions and distributes downstream transmissions. The upstream transmissions from the plurality of access nodes may occur according to an allocation schedule generated when the backup aggregation node is needed.

摘要翻译： 为可靠和低成本的数据中心网络提供冗余保护的方式。 在通过主聚合节点在多个接入节点和网络核心层之间的数据业务的数据中心网络中，提供诸如OLT（光线路终端）之类的光网络设备作为主要的一个或多个的备份聚合节点 聚合节点。 当通过主聚合节点的通信路径发生故障时，流量将通过光网络设备进行路由。 在优选实施例中，通过组合上行传输并分发下行传输的光分路器，从多个接入节点到OLT或其他光网络设备的单个端口形成通信链路。 来自多个接入节点的上行传输可以根据需要备份聚合节点时生成的分配调度进行。