Port wavelength restriction encoding in wavelength switched optical network
    1.
    发明授权
    Port wavelength restriction encoding in wavelength switched optical network 有权
    波长切换光网络中的端口波长限制编码

    公开(公告)号:US08442399B2

    公开(公告)日:2013-05-14

    申请号:US12830950

    申请日:2010-07-06

    IPC分类号: H04J14/02

    摘要: An apparatus comprising a path computation element (PCE) coupled to a path computation client (PCC) and configured to perform a path computation using port wavelength restriction information for a network element (NE), wherein the port wavelength restriction information is encoded and received in a port wavelength restriction Type-Length-Value (TLV) that comprises a matrix identifier (ID), a restriction type, and the port wavelength restriction information. Also disclosed is a network component comprising at least one processor coupled to a memory and configured to receive a port wavelength restriction information TLV that corresponds to a NE, and obtain a restriction type and port wavelength restriction information based on the restriction type from the port wavelength restriction TLV, and use the port wavelength restriction information to calculate a path for the NE.

    摘要翻译: 一种装置,包括耦合到路径计算客户机(PCC)的路径计算元件(PCE),并被配置为使用用于网元(NE)的端口波长限制信息来执行路径计算,其中端口波长限制信息被编码和接收 包括矩阵标识符(ID),限制类型和端口波长限制信息的端口波长限制类型长度值(TLV)。 还公开了一种网络组件,包括至少一个处理器,其耦合到存储器并且被配置为接收对应于NE的端口波长限制信息TLV,并且基于来自端口波长的限制类型获得限制类型和端口波长限制信息 限制TLV,并使用端口波长限制信息计算NE的路径。

    Port Wavelength Restriction Encoding in Wavelength Switched Optical Network
    2.
    发明申请
    Port Wavelength Restriction Encoding in Wavelength Switched Optical Network 有权
    波长切换光网络中的端口波长限制编码

    公开(公告)号:US20110008052A1

    公开(公告)日:2011-01-13

    申请号:US12830950

    申请日:2010-07-06

    IPC分类号: H04J14/02

    摘要: An apparatus comprising a path computation element (PCE) coupled to a path computation client (PCC) and configured to perform a path computation using port wavelength restriction information for a network element (NE), wherein the port wavelength restriction information is encoded and received in a port wavelength restriction Type-Length-Value (TLV) that comprises a matrix identifier (ID), a restriction type, and the port wavelength restriction information. Also disclosed is a network component comprising at least one processor coupled to a memory and configured to receive a port wavelength restriction information TLV that corresponds to a NE, and obtain a restriction type and port wavelength restriction information based on the restriction type from the port wavelength restriction TLV, and use the port wavelength restriction information to calculate a path for the NE.

    摘要翻译: 一种装置,包括耦合到路径计算客户机(PCC)的路径计算元件(PCE),并被配置为使用用于网元(NE)的端口波长限制信息来执行路径计算,其中端口波长限制信息被编码和接收 包括矩阵标识符(ID),限制类型和端口波长限制信息的端口波长限制类型长度值(TLV)。 还公开了一种网络组件,包括至少一个处理器,其耦合到存储器并且被配置为接收对应于NE的端口波长限制信息TLV,并且基于来自端口波长的限制类型获得限制类型和端口波长限制信息 限制TLV,并使用端口波长限制信息计算NE的路径。

    Encoding of wavelength converter systems

    公开(公告)号:US08385739B2

    公开(公告)日:2013-02-26

    申请号:US12711386

    申请日:2010-02-24

    IPC分类号: H04B10/00

    摘要: An apparatus comprising a path computation element (PCE) configured to perform a path computation using a wavelength converter (WC) pool information based on a dynamic WC pool model, wherein the dynamic WC pool model comprises information regarding WC pool usage state represented using a WC pool usage state vector, and wherein the information regarding WC pool usage state is communicated to the PCE using a WC usage state Type-Length-Value (TLV) that indicates an available WC in a WC pool, a used WC in the WC pool, or both. Also disclosed is a network component comprising at least one processor configured to implement a method comprising receiving a WC usage state TLV comprising information regarding WC pool usage state, establishing a WC pool usage state vector using the information in the WC usage state TLV, and calculating a WC pool connectivity matrix based on the WC usage state vector.

    Encoding of Wavelength Converter Systems
    4.
    发明申请
    Encoding of Wavelength Converter Systems 有权
    波长转换器系统的编码

    公开(公告)号:US20100220999A1

    公开(公告)日:2010-09-02

    申请号:US12711386

    申请日:2010-02-24

    IPC分类号: H04B10/08

    摘要: An apparatus comprising a path computation element (PCE) configured to perform a path computation using a wavelength converter (WC) pool information based on a dynamic WC pool model, wherein the dynamic WC pool model comprises information regarding WC pool usage state represented using a WC pool usage state vector, and wherein the information regarding WC pool usage state is communicated to the PCE using a WC usage state Type-Length-Value (TLV) that indicates an available WC in a WC pool, a used WC in the WC pool, or both. Also disclosed is a network component comprising at least one processor configured to implement a method comprising receiving a WC usage state TLV comprising information regarding WC pool usage state, establishing a WC pool usage state vector using the information in the WC usage state TLV, and calculating a WC pool connectivity matrix based on the WC usage state vector.

    摘要翻译: 一种装置,包括被配置为使用基于动态WC池模型的波长转换器(WC)池信息来执行路径计算的路径计算元件(PCE),其中,所述动态WC池模型包括关于使用WC表示的WC池使用状态的信息 池使用状态向量,并且其中关于WC池使用状态的信息使用指示WC池中的可用WC,WC池中使用的WC的WC使用状态类型长度值(TLV)来传送到PCE, 或两者。 还公开了一种网络组件,包括至少一个处理器,该处理器被配置为实现一种方法,该方法包括:接收包含关于WC池使用状态的信息的WC使用状态TLV,使用WC使用状态TLV中的信息建立WC池使用状态向量,以及计算 基于WC使用状态向量的WC池连接矩阵。

    Extending Path Computation Element Protocol to Accommodate Routing and Wavelength Assignment in Wavelength Switched Optical Networks
    5.
    发明申请
    Extending Path Computation Element Protocol to Accommodate Routing and Wavelength Assignment in Wavelength Switched Optical Networks 有权
    扩展路径计算元素协议以适应波长交换光网络中的路由和波长分配

    公开(公告)号:US20120321308A1

    公开(公告)日:2012-12-20

    申请号:US13596325

    申请日:2012-08-28

    IPC分类号: H04J14/02

    摘要: A network component comprising at least one processor configured to implement a method comprising transmitting a request to compute a routing assignment, a wavelength assignment, or both for a signal in a wavelength switched optical network, wherein the request comprises a lightpath constraint and wherein the request is transmitted using a path computation element protocol. Also disclosed is a network comprising a first path computation element (PCE) and a path computation client (PCC) in communication with the PCE, wherein the PCC is configured to send a request to and receive a reply from the PCE using a PCE protocol, wherein the request comprises a lightpath constraint. Included is a method comprising sending a discovery advertisement to the at least one PCE that calculates a wavelength assignment, receiving a response comprising a PCE capability information from the PCE, wherein the request and the reply are communicated via a PCE protocol.

    摘要翻译: 一种网络组件,包括至少一个处理器,所述至少一个处理器被配置为实现一种方法,所述方法包括:发送用于计算波长交换光网络中的信号的路由分配,波长分配或两者的请求,其中所述请求包括光路约束,并且其中所述请求 使用路径计算单元协议传输。 还公开了一种网络,包括与PCE通信的第一路径计算元件(PCE)和路径计算客户端(PCC),其中PCC被配置为使用PCE协议向PCE发送请求并从PCE接收回复, 其中所述请求包括光路约束。 包括的方法包括将发现通告发送到计算波长分配的至少一个PCE,从PCE接收包括PCE能力信息的响应,其中通过PCE协议传送请求和答复。

    Extending Routing Protocols to Accommodate Wavelength Switched Optical Networks
    6.
    发明申请
    Extending Routing Protocols to Accommodate Wavelength Switched Optical Networks 有权
    扩展路由协议以适应波长交换光网络

    公开(公告)号:US20090142056A1

    公开(公告)日:2009-06-04

    申请号:US12164768

    申请日:2008-06-30

    IPC分类号: H04J14/00

    摘要: A network component comprising a control plane controller configured to implement a method comprising transmitting routing and wavelength assignment (RWA) information to at least one adjacent control plane controller, wherein the RWA information is transmitted using an interior gateway protocol (IGP). Included is a method comprising communicating a message comprising RWA information to at least one adjacent control plane controller, wherein the message comprises an indication whether the RWA information is static or dynamic. Also included is an apparatus comprising a control plane controller configured to communicate data to at least one adjacent control plane controller, wherein the data comprises RWA information, and wherein the data comprises an indicator that indicates whether the RWA information is associated with a node, a link, or both.

    摘要翻译: 一种网络组件,包括控制平面控制器,该控制平面控制器被配置为实现一种方法,包括向至少一个相邻的控制平面控制器发送路由和波长分配(RWA)信息,其中使用内部网关协议(IGP)发送所述RWA信息。 包括的方法包括将包含RWA信息的消息传送到至少一个相邻的控制平面控制器,其中所述消息包括所述RWA信息是静态还是动态的指示。 还包括一种包括控制平面控制器的装置,该控制平面控制器被配置为将数据传送到至少一个相邻的控制平面控制器,其中数据包括RWA信息,并且其中数据包括指示RWA信息是否与节点相关联的指示符, 链接或两者。

    Distributed wavelength conversion control for signaling protocols
    7.
    发明授权
    Distributed wavelength conversion control for signaling protocols 有权
    用于信令协议的分布式波长转换控制

    公开(公告)号:US08774626B2

    公开(公告)日:2014-07-08

    申请号:US13402979

    申请日:2012-02-23

    IPC分类号: H04B14/00 H04J14/02

    摘要: A network component comprising at least one processor configured to implement a method comprising obtaining a wavelength availability information for a path, determining whether to implement a wavelength assignment based on the wavelength availability information, updating the wavelength availability information when the wavelength assignment is to be implemented, and forwarding the wavelength availability information. Also included is a method comprising obtaining a wavelength availability information, comparing a number of wavelengths in the wavelength availability information to a threshold, determining whether to implement wavelength conversion along a path when the number of available wavelengths is less than or about equal to the threshold, and resetting the wavelength availability information when wavelength conversion is to be implemented.

    摘要翻译: 一种网络组件,包括至少一个处理器,所述至少一个处理器被配置为实现一种方法,所述方法包括:获得用于路径的波长可用性信息,基于所述波长可用性信息来确定是否实现波长分配;当要实施所述波长分配 ,并转发波长可用性信息。 还包括一种方法,包括获得波长可用性信息,将波长可用性信息中的波长数量与阈值进行比较,当可用波长的数量小于或等于阈值时,确定是否沿着路径实现波长转换 并且当要实现波长转换时重置波长可用性信息。

    Extending routing protocols to accommodate wavelength switched optical networks
    8.
    发明授权
    Extending routing protocols to accommodate wavelength switched optical networks 有权
    扩展路由协议以适应波长交换光网络

    公开(公告)号:US08655173B2

    公开(公告)日:2014-02-18

    申请号:US12164768

    申请日:2008-06-30

    IPC分类号: H04J14/00 H04J14/04

    摘要: A network component comprising a control plane controller configured to implement a method comprising transmitting routing and wavelength assignment (RWA) information to at least one adjacent control plane controller, wherein the RWA information is transmitted using an interior gateway protocol (IGP). Included is a method comprising communicating a message comprising RWA information to at least one adjacent control plane controller, wherein the message comprises an indication whether the RWA information is static or dynamic. Also included is an apparatus comprising a control plane controller configured to communicate data to at least one adjacent control plane controller, wherein the data comprises RWA information, and wherein the data comprises an indicator that indicates whether the RWA information is associated with a node, a link, or both.

    摘要翻译: 一种网络组件,包括控制平面控制器,该控制平面控制器被配置为实现一种方法,包括向至少一个相邻的控制平面控制器发送路由和波长分配(RWA)信息,其中使用内部网关协议(IGP)发送所述RWA信息。 包括的方法包括将包含RWA信息的消息传送到至少一个相邻的控制平面控制器,其中所述消息包括所述RWA信息是静态还是动态的指示。 还包括一种包括控制平面控制器的装置,该控制平面控制器被配置为将数据传送到至少一个相邻的控制平面控制器,其中数据包括RWA信息,并且其中数据包括指示RWA信息是否与节点相关联的指示符, 链接或两者。

    Method for characterizing wavelength switched optical network signal characteristics and network element compatibility constraints for generalized multi-protocol label switching
    9.
    发明授权
    Method for characterizing wavelength switched optical network signal characteristics and network element compatibility constraints for generalized multi-protocol label switching 有权
    用于表征波长交换光网络信号特性和广义多协议标签交换的网元兼容性约束的方法

    公开(公告)号:US08467681B2

    公开(公告)日:2013-06-18

    申请号:US12898778

    申请日:2010-10-06

    IPC分类号: H04J14/00

    摘要: An apparatus comprising a path computation element (PCE) configured to perform a path computation using signal compatibility constraints information for a network element (NE) in a wavelength switched optical network (WSON), wherein the signal constraints information are communicated at a Generalized Multi-Protocol Label Switching (GMPLS) control plane layer and comprise a plurality of signal attributes and a plurality of NE compatibility constraints. A network component comprising a transmitter unit configured to transmit signal compatibility constraints via GMPLS signaling, wherein the signal compatibility constraints define the signal compatibility constraints for a NE in a WSON. A method comprising receiving signal compatibility constraints for a NE in a WSON, performing a path calculation based on the signal compatibility constraints for the NE, and sending signal compatibility constraints associated with a computed path.

    摘要翻译: 一种装置,包括被配置为使用波长切换光网络(WSON)中的网元(NE)的信号兼容约束信息执行路径计算的路径计算元件(PCE),其中,所述信号约束信息在广义多址 协议标签交换(GMPLS)控制层,并且包括多个信号属性和多个NE兼容性约束。 一种网络组件,包括被配置为经由GMPLS信令来发送信号兼容约束的发射机单元,其中信号兼容性约束定义了WSON中的NE的信号兼容性约束。 一种方法,包括:在WSON中接收针对NE的信号兼容约束,基于所述NE的信号兼容性约束执行路径计算,以及发送与所计算的路径相关联的信号兼容性约束。