Extending path computation element protocol to accommodate routing and wavelength assignment in wavelength switched optical networks
    1.
    发明授权
    Extending path computation element protocol to accommodate routing and wavelength assignment in wavelength switched optical networks 有权
    扩展路径计算单元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:US09231726B2

    公开(公告)日:2016-01-05

    申请号:US13596325

    申请日:2012-08-28

    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。

    Path computation element method to support routing and wavelength assignment in wavelength switched optical networks
    2.
    发明授权
    Path computation element method to support routing and wavelength assignment in wavelength switched optical networks 有权
    路径计算元素方法支持波长交换光网络中的路由和波长分配

    公开(公告)号:US08666246B2

    公开(公告)日:2014-03-04

    申请号:US13272691

    申请日:2011-10-13

    IPC分类号: H04J14/00

    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, wherein the request comprises a lightpath constraint indicator is disclosed. Also disclosed is an apparatus comprising a Path Computation Client (PCC) configured to transmit a request to and receive a reply from a Path Computation Element (PCE), wherein the request comprises a lightpath constraint, and wherein the reply comprises a routing assignment, a wavelength assignment, an error message, a no-path indication, or combinations thereof. Included is a method comprising receiving a request comprising a request parameter (RP) object comprising a lightpath constraint, sending a reply comprising a routing assignment, a wavelength assignment, an error message, a no-path indicator, or combinations thereof, wherein the request is received and the reply is sent using path computation element protocol (PCEP).

    摘要翻译: 一种网络组件,包括至少一个处理器,其被配置为实现包括发送计算路由分配,波长分配或两者的请求的方法,其中所述请求包括光路约束指示符。 还公开了一种装置,包括路径计算客户端(PCC),其被配置为向路径计算元件(PCE)发送请求并从路径计算元件(PCE)接收回复),其中所述请求包括光路约束,并且其中所述回复包括路由分配, 波长分配,错误消息,无路径指示或其组合。 包括的方法包括接收包括包括光路约束的请求参数(RP)对象的请求的请求,发送包括路由分配的响应,波长分配,错误消息,无路径指示符或其组合,其中所述请求 并使用路径计算单元协议(PCEP)发送应答。

    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.

    Methods for characterizing optical switches and multiplexers/demultiplexers
    5.
    发明授权
    Methods for characterizing optical switches and multiplexers/demultiplexers 有权
    用于表征光开关和多路复用器/解复用器的方法

    公开(公告)号:US08249451B2

    公开(公告)日:2012-08-21

    申请号:US12169883

    申请日:2008-07-09

    IPC分类号: H04B10/00

    摘要: A network component comprising at least one processor configured to implement a method comprising creating a port restriction matrix comprising a plurality of port restrictions, and compressing the port restriction matrix. Included is a method comprising establishing a port wavelength restriction data for an optical component, establishing a port connectivity data for the optical component, and transmitting the port wavelength restriction data and the port connectivity data to a path computation element. Also included is an apparatus comprising a path computation client configured to communicate data to a path computation element, wherein the data comprises a port restriction data.

    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包括创建包括多个端口限制的端口限制矩阵并压缩所述端口限制矩阵的方法。 包括建立光学部件的端口波长限制数据,建立光学部件的端口连接数据以及将端口波长限制数据和端口连接性数据发送到路径计算元件的方法。 还包括一种包括路径计算客户端的设备,其被配置为将数据传送到路径计算元件,其中数据包括端口限制数据。

    Encoding for information needed for routing and wavelength assignment in wavelength switched optical networks
    6.
    发明授权
    Encoding for information needed for routing and wavelength assignment in wavelength switched optical networks 有权
    编码波长交换光网络中路由和波长分配所需的信息

    公开(公告)号:US08200084B2

    公开(公告)日:2012-06-12

    申请号:US12180025

    申请日:2008-07-25

    IPC分类号: H04J14/00

    摘要: A network component comprising at least one control plane controller configured to implement a method comprising transmitting a message to at least one adjacent control plane controller, wherein the message comprises a Type-Length-Value (TLV) indicating Routing and Wavelength Assignment (RWA) information. Included is a method comprising communicating a message comprising a TLV to a control plane controller, wherein the TLV indicates RWA information. Also included is an apparatus comprising a control plane controller configured to communicate a TLV to at least one adjacent control plane controller, wherein the TLV indicates RWA information.

    摘要翻译: 一种网络组件,包括至少一个控制平面控制器,其被配置为实现包括向至少一个相邻控制平面控制器发送消息的方法,其中所述消息包括指示路由和波长分配(RWA)信息的类型长度值(TLV) 。 包括的方法包括将包括TLV的消息传送到控制平面控制器,其中TLV指示RWA信息。 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TLV传送到至少一个相邻的控制平面控制器,其中TLV指示RWA信息。

    Path Computation Element Method to Support Routing and Wavelength Assignment in Wavelength Switched Optical Networks
    7.
    发明申请
    Path Computation Element Method to Support Routing and Wavelength Assignment in Wavelength Switched Optical Networks 有权
    路径计算元素方法支持波长切换光网络中的路由和波长分配

    公开(公告)号:US20120033970A1

    公开(公告)日:2012-02-09

    申请号:US13272691

    申请日:2011-10-13

    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, wherein the request comprises a lightpath constraint indicator is disclosed. Also disclosed is an apparatus comprising a Path Computation Client (PCC) configured to transmit a request to and receive a reply from a Path Computation Element (PCE), wherein the request comprises a lightpath constraint, and wherein the reply comprises a routing assignment, a wavelength assignment, an error message, a no-path indication, or combinations thereof. Included is a method comprising receiving a request comprising a request parameter (RP) object comprising a lightpath constraint, sending a reply comprising a routing assignment, a wavelength assignment, an error message, a no-path indicator, or combinations thereof, wherein the request is received and the reply is sent using path computation element protocol (PCEP).

    摘要翻译: 一种网络组件,包括至少一个处理器,其被配置为实现包括发送计算路由分配,波长分配或两者的请求的方法,其中所述请求包括光路约束指示符。 还公开了一种装置,包括路径计算客户端(PCC),其被配置为向路径计算元件(PCE)发送请求并从路径计算元件(PCE)接收回复),其中所述请求包括光路约束,并且其中所述回复包括路由分配, 波长分配,错误消息,无路径指示或其组合。 包括的方法包括接收包括包括光路约束的请求参数(RP)对象的请求的请求,发送包括路由分配的响应,波长分配,错误消息,无路径指示符或其组合,其中所述请求 并使用路径计算单元协议(PCEP)发送应答。

    Path computation element method to support routing and wavelength assignment in wavelength switched optical networks
    8.
    发明授权
    Path computation element method to support routing and wavelength assignment in wavelength switched optical networks 有权
    路径计算元素方法支持波长交换光网络中的路由和波长分配

    公开(公告)号:US08059960B2

    公开(公告)日:2011-11-15

    申请号:US12173873

    申请日:2008-07-16

    IPC分类号: H04J14/00

    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, wherein the request comprises a lightpath constraint indicator is disclosed. Also disclosed is an apparatus comprising a Path Computation Client (PCC) configured to transmit a request to and receive a reply from a Path Computation Element (PCE), wherein the request comprises a lightpath constraint, and wherein the reply comprises a routing assignment, a wavelength assignment, an error message, a no-path indication, or combinations thereof. Included is a method comprising receiving a request comprising a request parameter (RP) object comprising a lightpath constraint, sending a reply comprising a routing assignment, a wavelength assignment, an error message, a no-path indicator, or combinations thereof, wherein the request is received and the reply is sent using path computation element protocol (PCEP).

    摘要翻译: 一种网络组件,包括至少一个处理器,其被配置为实现包括发送计算路由分配,波长分配或两者的请求的方法,其中所述请求包括光路约束指示符。 还公开了一种装置,包括路径计算客户端(PCC),其被配置为向路径计算元件(PCE)发送请求并从路径计算元件(PCE)接收回复),其中所述请求包括光路约束,并且其中所述回复包括路由分配, 波长分配,错误消息,无路径指示或其组合。 包括的方法包括接收包括包括光路约束的请求参数(RP)对象的请求的请求,发送包括路由分配的响应,波长分配,错误消息,无路径指示符或其组合,其中所述请求 并使用路径计算单元协议(PCEP)发送应答。

    Open Shortest Path First Extensions in Support of Wavelength Switched Optical Networks
    9.
    发明申请
    Open Shortest Path First Extensions in Support of Wavelength Switched Optical Networks 有权
    开放最短路径第一扩展支持波长交换光网络

    公开(公告)号:US20100221003A1

    公开(公告)日:2010-09-02

    申请号:US12711387

    申请日:2010-02-24

    IPC分类号: H04J14/00 H04J14/02

    摘要: A network component comprising a generalized multiprotocol label switching (GMPLS) control plane controller configured to implement a method comprising transmitting a message to at least one adjacent control plane controller, wherein the message comprises a Type-Length-Value (TLV) indicating Routing and Wavelength Assignment (RWA) information, wherein the TLV comprises a Node Attribute TLV, a Link Set TLV, or both, and wherein the TLV further comprises at least one sub-TLV indicating additional RWA information. A method comprising communicating an open shortest path first (OSPF) link state advertisement (LSA) message comprising a TLV with at least one sub-TLV to a GMPLS control plane controller, wherein the TLV comprises a Node Attribute TLV, a Link Set TLV, or both, and wherein the TLV further comprises at least one sub-TLV indicating RWA information.

    摘要翻译: 一种网络组件,包括广泛多协议标签交换(GMPLS)控制平面控制器,其被配置为实现包括向至少一个相邻控制平面控制器发送消息的方法,其中所述消息包括指示路由和波长的类型长度值(TLV) 分配(RWA)信息,其中所述TLV包括节点属性TLV,链路集TLV或两者,并且其中所述TLV还包括指示附加RWA信息的至少一个子TLV。 一种方法,包括将包括具有至少一个子TLV的TLV的开放式最短路径优先(OSPF)链路状态通告(LSA)消息)传送到GMPLS控制平面控制器,其中所述TLV包括节点属性TLV,链路集TLV, 或两者,并且其中所述TLV还包括指示RWA信息的至少一个子TLV。

    Path Computation Element Protocol (PCEP) Operations to Support Wavelength Switched Optical Network Routing, Wavelength Assignment, and Impairment Validation
    10.
    发明申请
    Path Computation Element Protocol (PCEP) Operations to Support Wavelength Switched Optical Network Routing, Wavelength Assignment, and Impairment Validation 有权
    路径计算元素协议(PCEP)操作,支持波长切换光网络路由,波长分配和损害验证

    公开(公告)号:US20100220996A1

    公开(公告)日:2010-09-02

    申请号:US12710757

    申请日:2010-02-23

    IPC分类号: H04B10/08

    摘要: An apparatus comprising a path computation element (PCE) configured for at least partial impairment aware routing and wavelength assignment (RWA) and to communicate with a path computation client (PCC) based on a PCE protocol (PCEP) that supports path routing, wavelength assignment (WA), and impairment validation (IV). The PCEP comprises at least one operation selected from the group consisting of a new RWA path request operation and a path re-optimization request operation. Also disclosed is a network component comprising at least one processor configured to implement a method comprising establishing a PCEP session with a PCC, receiving path computation information comprising RWA information and constraints from the PCC, and establishing impairment aware RWA (IA-RWA) based on the path computation information and a private impairment information for a vendor's equipment.

    摘要翻译: 一种装置,包括被配置用于至少部分受损认知路由和波长分配(RWA)并且基于支持路径路由的PCE协议(PCEP)与路径计算客户端(PCC)通信的路径计算元件(PCE),波长分配 (WA)和减值确认(IV)。 PCEP包括从由新的RWA路径请求操作和路径重新优化请求操作组成的组中选择的至少一个操作。 还公开了一种网络组件,其包括至少一个处理器,其被配置为实现包括与PCC建立PCEP会话的方法,包括来自PCC的RWA信息和约束的接收路径计算信息,以及基于PCC的建立受损认知的RWA(IA-RWA) 路径计算信息和供应商设备的私有损伤信息。