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公开(公告)号：US07843939B2
公开(公告)日：2010-11-30
申请号：US12258908
申请日：2008-10-27
CPC分类号： H04L12/5601 , H04L2012/5605 , H04L2012/5642 , H04L2012/5651 , H04L2012/5658 , H04L2012/5665
摘要： The disclosure presents techniques for merging multiple data flows in a network such as a Passive Optical Network (PON). The PON comprises an interface module and network nodes connected to the interface module via an optical fiber link. Each network node further serves client devices. The client devices request multiple data flows, requiring the interface module to serve multiple data flows to a network node for delivery to the devices. The interface module merges received data flows to permit multiple flows to be processed by a single segmentation and reassembly (SAR) engine, reducing hardware cost and complexity within the node. However, subunits associated with different data flows within a merged data flow are not interleaved with one another. Instead, the subunits associated with an original unit of information are transmitted contiguously within the merged data flow, facilitating identification and reassembly of the subunits for a particular microflow.
摘要翻译： 本公开提供了用于在诸如无源光网络（PON）的网络中合并多个数据流的技术。 PON包括接口模块和经由光纤链路连接到接口模块的网络节点。 每个网络节点还为客户端设备提供服务。 客户端设备请求多个数据流，要求接口模块向网络节点提供多个数据流，以传送到设备。 接口模块将接收的数据流合并，以允许通过单个分段和重组（SAR）引擎处理多个流，从而降低节点内的硬件成本和复杂度。 然而，与合并的数据流内的不同数据流相关联的子单元不会彼此交错。 相反，与原始信息单元相关联的子单元在合并的数据流内连续传输，有助于识别和重新组装特定微流的子单元。
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公开(公告)号：US20090046721A1
公开(公告)日：2009-02-19
申请号：US12258908
申请日：2008-10-27
IPC分类号： H04L12/28
CPC分类号： H04L12/5601 , H04L2012/5605 , H04L2012/5642 , H04L2012/5651 , H04L2012/5658 , H04L2012/5665
摘要： The disclosure presents techniques for merging multiple data flows in a network such as a Passive Optical Network (PON). The PON comprises an interface module and network nodes connected to the interface module via an optical fiber link. Each network node further serves client devices. The client devices request multiple data flows, requiring the interface module to serve multiple data flows to a network node for delivery to the devices. The interface module merges received data flows to permit multiple flows to be processed by a single segmentation and reassembly (SAR) engine, reducing hardware cost and complexity within the node. However, subunits associated with different data flows within a merged data flow are not interleaved with one another. Instead, the subunits associated with an original unit of information are transmitted contiguously within the merged data flow, facilitating identification and reassembly of the subunits for a particular microflow.
摘要翻译： 本公开提供了用于在诸如无源光网络（PON）的网络中合并多个数据流的技术。 PON包括接口模块和经由光纤链路连接到接口模块的网络节点。 每个网络节点还为客户端设备提供服务。 客户端设备请求多个数据流，要求接口模块向网络节点提供多个数据流，以传送到设备。 接口模块将接收的数据流合并，以允许通过单个分段和重组（SAR）引擎处理多个流，从而降低节点内的硬件成本和复杂度。 然而，与合并的数据流内的不同数据流相关联的子单元不会彼此交错。 相反，与原始信息单元相关联的子单元在合并的数据流内连续传输，有助于识别和重新组装特定微流的子单元。
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公开(公告)号：US08559440B2
公开(公告)日：2013-10-15
申请号：US12908559
申请日：2010-10-20
CPC分类号： H04L12/5601 , H04L2012/5605 , H04L2012/5642 , H04L2012/5651 , H04L2012/5658 , H04L2012/5665
摘要： The disclosure presents techniques for merging multiple data flows in a network such as a Passive Optical Network (PON). The PON comprises an interface module and network nodes connected to the interface module via an optical fiber link. Each network node further serves client devices. The client devices request multiple data flows, requiring the interface module to serve multiple data flows to a network node for delivery to the devices. The interface module merges received data flows to permit multiple flows to be processed by a single segmentation and reassembly (SAR) engine, reducing hardware cost and complexity within the node. However, subunits associated with different data flows within a merged data flow are not interleaved with one another. Instead, the subunits associated with an original unit of information are transmitted contiguously within the merged data flow, facilitating identification and reassembly of the subunits for a particular microflow.
摘要翻译： 本公开提供了用于在诸如无源光网络（PON）的网络中合并多个数据流的技术。 PON包括接口模块和经由光纤链路连接到接口模块的网络节点。 每个网络节点还为客户端设备提供服务。 客户端设备请求多个数据流，要求接口模块向网络节点提供多个数据流，以传送到设备。 接口模块将接收的数据流合并，以允许通过单个分段和重组（SAR）引擎处理多个流，从而降低节点内的硬件成本和复杂度。 然而，与合并的数据流内的不同数据流相关联的子单元不会彼此交错。 相反，与原始信息单元相关联的子单元在合并的数据流内连续传输，有助于识别和重新组装特定微流的子单元。
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公开(公告)号：US20110032951A1
公开(公告)日：2011-02-10
申请号：US12908559
申请日：2010-10-20
IPC分类号： H04J3/24
CPC分类号： H04L12/5601 , H04L2012/5605 , H04L2012/5642 , H04L2012/5651 , H04L2012/5658 , H04L2012/5665
摘要： The disclosure presents techniques for merging multiple data flows in a network such as a Passive Optical Network (PON). The PON comprises an interface module and network nodes connected to the interface module via an optical fiber link. Each network node further serves client devices. The client devices request multiple data flows, requiring the interface module to serve multiple data flows to a network node for delivery to the devices. The interface module merges received data flows to permit multiple flows to be processed by a single segmentation and reassembly (SAR) engine, reducing hardware cost and complexity within the node. However, subunits associated with different data flows within a merged data flow are not interleaved with one another. Instead, the subunits associated with an original unit of information are transmitted contiguously within the merged data flow, facilitating identification and reassembly of the subunits for a particular microflow.
摘要翻译： 本公开提供了用于在诸如无源光网络（PON）的网络中合并多个数据流的技术。 PON包括接口模块和经由光纤链路连接到接口模块的网络节点。 每个网络节点还为客户端设备提供服务。 客户端设备请求多个数据流，要求接口模块向网络节点提供多个数据流，以传送到设备。 接口模块将接收的数据流合并，以允许通过单个分段和重组（SAR）引擎处理多个流，从而降低节点内的硬件成本和复杂度。 然而，与合并的数据流内的不同数据流相关联的子单元不会彼此交错。 相反，与原始信息单元相关联的子单元在合并的数据流内连续传输，有助于识别和重新组装特定微流的子单元。
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公开(公告)号：US07586920B2
公开(公告)日：2009-09-08
申请号：US10857349
申请日：2004-05-28
CPC分类号： H04L12/5601 , H04L2012/5605 , H04L2012/5642 , H04L2012/5651 , H04L2012/5658 , H04L2012/5665
摘要： The disclosure is directed to techniques for merging multiple data flows in a Passive Optical Network (PON). The PON comprises an interface module and a plurality of network nodes connected to the interface module via an optical fiber link. Each of the network nodes further serves client devices. The client devices request multiple data flows, requiring the interface module to serve multiple data flows to a network node for delivery to the devices. The interface module merges received data flows to permit multiple flows to be processed by a single segmentation and reassembly (SAR) engine, reducing hardware cost and complexity within the node. However, subunits associated with different data flows within a merged data flow are not interleaved with one another. Instead, the subunits associated with an original unit of information are transmitted contiguously within the merged data flow, facilitating identification and reassembly of the subunits for a particular microflow.
摘要翻译： 本公开涉及用于在无源光网络（PON）中合并多个数据流的技术。 PON包括接口模块和经由光纤链路连接到接口模块的多个网络节点。 每个网络节点还为客户端设备提供服务。 客户端设备请求多个数据流，要求接口模块向网络节点提供多个数据流，以传送到设备。 接口模块将接收的数据流合并，以允许通过单个分段和重组（SAR）引擎处理多个流，从而降低节点内的硬件成本和复杂度。 然而，与合并的数据流内的不同数据流相关联的子单元不会彼此交错。 相反，与原始信息单元相关联的子单元在合并的数据流内连续传输，有助于识别和重新组装特定微流的子单元。
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公开(公告)号：US08325727B2
公开(公告)日：2012-12-04
申请号：US12756537
申请日：2010-04-08
CPC分类号： H04Q11/0067 , H04L12/18 , H04L12/2885 , H04L12/4641 , H04Q11/0071
摘要： In general, techniques are described for inline packet replication in network devices. A network device referred to as an optical line terminal (OLT) may implement the techniques. The OLT comprises a customer interface that supports different logical interfaces to which couple a plurality of optical network terminals (ONTs) and a network interface that receives a data unit. The OLT further comprises a conversion unit, such as a media access control (MAC) module, located in a data path of the optical line terminal that determines whether the received data unit is a candidate for replication. The conversion unit includes an inline packet processing module that performs replication to generate at least one copy of the data unit based on the determination that the received packet is a candidate for packet replication. The customer interface outputs the at least one copy of the data unit to the ONTs.
摘要翻译： 通常，描述了网络设备中的内联分组复制技术。 被称为光线路终端（OLT）的网络设备可以实现这些技术。 OLT包括支持与多个光网络终端（ONT）和接收数据单元的网络接口耦合的不同逻辑接口的客户接口。 OLT还包括位于光线路终端的数据路径中的诸如介质访问控制（MAC）模块的转换单元，其确定接收到的数据单元是否是复制候选。 转换单元包括内联分组处理模块，其执行复制以基于所接收的分组是用于分组复制的候选的确定来生成数据单元的至少一个副本。 客户界面将数据单元的至少一个副本输出到ONT。
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公开(公告)号：US20110249970A1
公开(公告)日：2011-10-13
申请号：US12756537
申请日：2010-04-08
IPC分类号： H04J14/00
CPC分类号： H04Q11/0067 , H04L12/18 , H04L12/2885 , H04L12/4641 , H04Q11/0071
摘要： In general, techniques are described for inline packet replication in network devices. A network device referred to as an optical line terminal (OLT) may implement the techniques. The OLT comprises a customer interface that supports different logical interfaces to which couple a plurality of optical network terminals (ONTs) and a network interface that receives a data unit. The OLT further comprises a conversion unit, such as a media access control (MAC) module, located in a data path of the optical line terminal that determines whether the received data unit is a candidate for replication. The conversion unit includes an inline packet processing module that performs replication to generate at least one copy of the data unit based on the determination that the received packet is a candidate for packet replication. The customer interface outputs the at least one copy of the data unit to the ONTs.
摘要翻译： 通常，描述了网络设备中的内联分组复制技术。 被称为光线路终端（OLT）的网络设备可以实现这些技术。 OLT包括支持与多个光网络终端（ONT）和接收数据单元的网络接口耦合的不同逻辑接口的客户接口。 OLT还包括位于光线路终端的数据路径中的诸如介质访问控制（MAC）模块的转换单元，其确定接收到的数据单元是否是复制候选。 转换单元包括内联分组处理模块，其执行复制以基于所接收的分组是用于分组复制的候选的确定来生成数据单元的至少一个副本。 客户界面将数据单元的至少一个副本输出到ONT。
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公开(公告)号：US08139605B2
公开(公告)日：2012-03-20
申请号：US12115220
申请日：2008-05-05
IPC分类号： H04J3/22
CPC分类号： H04J3/1694 , H04J3/0632 , H04Q11/0067 , H04Q2011/0064 , H04Q2011/0086 , H04Q2011/0092
摘要： This disclosure is directed to devices and methods for facilitating the upgrade of optical networks. An optical network terminal (ONT) that terminates an optical fiber link of an optical network comprises two or more transport engines that each converts data transmitted via different transports to data corresponding to a service. For example, the ONT may include a first transport engine and a second transport engine. The first transport engine converts data received over the optical network via a first transport, e.g., a legacy transport, into data corresponding to a service for one or more subscriber devices. The second transport engine converts the data received over the optical network via a second transport, e.g., a next generation transport, into the data corresponding to the service for the subscriber devices. The ONT is selectively configurable to select one of the first and second transport engines, thereby making the ONT upgrade-resilient.
摘要翻译： 本公开涉及用于促进光网络升级的设备和方法。 终止光网络的光纤链路的光网络终端（ONT）包括两个或更多个传输引擎，每个传输引擎将经由不同传输发送的数据转换为对应于服务的数据。 例如，ONT可以包括第一运输发动机和第二运输发动机。 第一传输引擎将通过光网络接收的数据经由第一传输（例如，传统传输）转换成对应于一个或多个用户设备的服务的数据。 第二传输引擎将通过光网络接收的数据经由第二传输（例如，下一代传输）转换成对应于用户设备的服务的数据。 ONT可选择性地配置为选择第一和第二传输引擎中的一个，从而使得ONT升级具有弹性。
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9.发明申请PROTECTING OPTICAL TRANSPORTS FROM CONSECUTIVE IDENTICAL DIGITS IN OPTICAL COMPUTER NETWORKS 有权保护光学计算机网络中相关标识符的光传输公开(公告)号：US20130202113A1
公开(公告)日：2013-08-08
申请号：US13364695
申请日：2012-02-02
IPC分类号： H04K1/04
CPC分类号： H04Q11/0067
摘要： In general, techniques are described for protecting optical networks from consecutive identical digit (CID) errors. An optical network device comprising a control unit and an interface may implement the techniques described in this disclosure. The control unit determines whether a data packet will result in a CID error prior to encapsulating at least a portion of the data packet to form a passive optical network (PON) frame and then, in response to the determination that the data packet will result in the CID error, modifies the data packet to form a modified data packet so that the modified data packet will not result in the CID error. The control unit encapsulates the modified data packet to form a PON frame. The control unit applies a scrambling polynomial to the PON frame to form a scrambled PON frame. The interface transmits the scrambled PON frame.
摘要翻译： 通常，描述了用于保护光网络不受连续相同数字（CID）错误的技术。 包括控制单元和接口的光网络设备可以实现本公开中描述的技术。 控制单元在封装数据分组的至少一部分以形成无源光网络（PON）帧之前确定数据分组是否将导致CID错误，然后响应于确定数据分组将导致 CID错误，修改数据包以形成修改的数据包，以便修改后的数据包不会导致CID错误。 控制单元封装修改后的数据包，形成PON帧。 控制单元对PON帧应用加扰多项式以形成加扰的PON帧。 接口发送加扰的PON帧。
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10.发明申请PROTECTING OPTICAL TRANSPORTS FROM CONSECUTIVE IDENTICAL DIGITS IN OPTICAL COMPUTER NETWORKS 有权保护光学计算机网络中相关标识符的光传输公开(公告)号：US20130202112A1
公开(公告)日：2013-08-08
申请号：US13364679
申请日：2012-02-02
IPC分类号： H04K1/04
CPC分类号： H04Q11/0067
摘要： An example method includes encapsulating, by an optical network device, at least a portion of a data packet to form a passive optical network (PON) frame. The method further includes applying, by the optical network device, a scrambling polynomial to at least a portion of the PON frame to generate a scrambled PON frame. The method further includes determining, by the optical network device, that the scrambled PON frame comprises a consecutive identical digit (CID) sequence greater than a threshold length. The method further includes replacing, by the optical network device the determined CID sequence with a correction pattern to generate a modified scrambled PON frame. The method further includes transmitting, by the optical network device, the modified scrambled PON frame.
摘要翻译： 一种示例性方法包括通过光网络设备封装数据分组的至少一部分以形成无源光网络（PON）帧。 该方法还包括通过光网络设备将加扰多项式应用于PON帧的至少一部分以产生加扰的PON帧。 该方法还包括由光网络设备确定加扰的PON帧包括大于阈值长度的连续相同数字（CID）序列。 该方法还包括由光网络设备用确定的CID序列替换校正模式以产生经修改的加扰PON帧。 该方法还包括由光网络设备发送经修改的加扰PON帧。
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