公开(公告)号：US09270597B2

公开(公告)日：2016-02-23

申请号：US13937942

申请日：2013-07-09

Applicant: Futurewei Technologies, Inc.

Inventor： Greg Bernstein ,  Young Lee

IPC: H04L12/801 ,  H04L12/721

CPC classification number: H04L47/10 ,  H04L45/124

Abstract: Disclosed is a network element (NE) comprising a receiver configured to receive a path computation request, a path computation element (PCE) coupled to the receiver and configured to compute a group of network paths through a network of NEs operating in a network stratum in response to the path computation request, wherein each network path comprises one or more physical links, and compute at least one constraint for each physical link, and an abstraction module coupled to the PCE and configured to receive the computed network path set and constraints, compute one or more abstract links that describe the network path group, and compute a constraint for each abstract link based on the physical link constraints.

Abstract translation: 公开了一种网络元件（NE），其包括被配置为接收路径计算请求的接收器，耦合到接收器的路径计算元件（PCE），并且被配置为通过在网络层中操作的网络的网络来计算一组网络路径 响应于所述路径计算请求，其中每个网络路径包括一个或多个物理链路，并且为每个物理链路计算至少一个约束;以及抽象模块，其耦合到所述PCE并被配置为接收所计算的网络路径集合和约束，计算 描述网络路径组的一个或多个抽象链接，并且基于物理链路约束计算每个抽象链接的约束。

公开(公告)号：US20150086205A1

公开(公告)日：2015-03-26

申请号：US14557978

申请日：2014-12-02

Applicant: Futurewei Technologies, Inc.

Inventor： Greg Bernstein ,  Young Lee

IPC: H04L12/723 ,  H04J14/02

CPC classification number: H04L45/507 ,  H04J14/02 ,  H04J14/0212 ,  H04J14/0238 ,  H04J14/0257 ,  H04J14/0258 ,  H04J14/0268 ,  H04J14/0269 ,  H04J14/0273 ,  H04L45/02 ,  H04L45/026 ,  H04L45/50 ,  H04L45/62 ,  H04Q11/0062 ,  H04Q2011/0073 ,  H04Q2011/0077 ,  H04Q2011/0086

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20150063804A1

公开(公告)日：2015-03-05

申请号：US14535918

申请日：2014-11-07

Applicant: Futurewei Technologies, Inc.

Inventor： Young Lee ,  Greg Bernstein

IPC: H04Q11/00

CPC classification number: H04Q11/0062 ,  H04J14/0227 ,  H04J14/0257 ,  H04J14/0258 ,  H04J14/0267 ,  H04J14/0269 ,  H04J14/0271 ,  H04L45/02 ,  H04L45/42 ,  H04L45/44 ,  H04L45/62 ,  H04Q11/0005 ,  H04Q2011/0073 ,  H04Q2011/0086

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08718469B2

公开(公告)日：2014-05-06

申请号：US13762905

申请日：2013-02-08

Applicant: Futurewei Technologies, Inc.

Inventor： Young Lee ,  Greg Bernstein

IPC: H04J14/00

CPC classification number: H04J14/0267 ,  H04J14/0256 ,  H04J14/0257 ,  H04J14/0258 ,  H04J14/0269 ,  H04J14/0271 ,  H04Q11/0062 ,  H04Q2011/0073 ,  H04Q2011/0086

Abstract: 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). 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, establishing impairment aware RWA (IA-RWA) based on the path computation information and a private impairment information for a vendor's equipment, and sending a path and an assigned wavelength based on the IA-RWA to the PCC. Disclosed is a method comprising establishing impairment aware routing and wavelength assignment for a plurality of network elements (NEs) in an optical network using routing and combined WA and IV.

Abstract translation: 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）。 还公开了一种网络组件，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，基于所述PCC建立损害感知RWA（IA-RWA） 路径计算信息和供应商设备的私人损害信息，以及将基于IA-RWA的路径和分配的波长发送到PCC。 公开了一种方法，该方法包括使用路由和组合的WA和IV来建立光网络中的多个网元（NE）的受损认知路由和波长分配。

公开(公告)号：US09450865B2

公开(公告)日：2016-09-20

申请号：US14557978

申请日：2014-12-02

Applicant: Futurewei Technologies, Inc.

Inventor： Greg Bernstein ,  Young Lee

IPC: H04B10/00 ,  H04L12/723 ,  H04L12/751 ,  H04L12/721 ,  H04Q11/00 ,  H04J14/02

CPC classification number: H04L45/507 ,  H04J14/02 ,  H04J14/0212 ,  H04J14/0238 ,  H04J14/0257 ,  H04J14/0258 ,  H04J14/0268 ,  H04J14/0269 ,  H04J14/0273 ,  H04L45/02 ,  H04L45/026 ,  H04L45/50 ,  H04L45/62 ,  H04Q11/0062 ,  H04Q2011/0073 ,  H04Q2011/0077 ,  H04Q2011/0086

Abstract: 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.

公开(公告)号：US09055354B2

公开(公告)日：2015-06-09

申请号：US13873710

申请日：2013-04-30

Applicant: Futurewei Technologies, Inc.

Inventor： Young Lee ,  Greg Bernstein

IPC: H04Q11/00 ,  H04L12/701 ,  H04L12/717 ,  H04L12/721 ,  H04L12/723 ,  H04L12/781

CPC classification number: H04Q11/0062 ,  H04L45/00 ,  H04L45/42 ,  H04L45/44 ,  H04L45/50 ,  H04L45/52 ,  H04L45/62 ,  H04Q2011/0075 ,  H04Q2011/0077

Abstract: An apparatus comprising a network element (NE) configured to support routing-associated signal compatibility constraint information that is associated with the NE using Generalized Multi-Protocol Label Switching (GMPLS) and an open shortest path first (OSPF) routing protocol, wherein the signal compatibility constraint information comprises a modulation type list, a Forward Error Correction (FEC) type list, a bit rate range list, and an acceptable client signal list, and wherein the signal compatibility constraint information is associated with a resource block (RB) pool for a plurality of NEs. Also disclosed is a network component comprising a transmitter unit configured to transmit signal compatibility constraints via GMPLS OSPF routing, wherein the signal compatibility constraints comprise a modulation type list, a FEC type list, a bit rate range list, and an acceptable client signal list.

Abstract translation: 一种装置，包括被配置为使用广义多协议标签交换（GMPLS）和开放式最短路径优先（OSPF）路由协议来支持与所述NE相关联的路由相关信号兼容约束信息的网元（NE），其中所述信号 兼容性约束信息包括调制类型列表，前向纠错（FEC）类型列表，比特率范围列表和可接受的客户端信号列表，并且其中信号兼容性约束信息与资源块（RB）池相关联，用于 多个NE。 还公开了一种网络组件，其包括被配置为经由GMPLS OSPF路由发送信号兼容性约束的发射机单元，其中所述信号兼容性约束包括调制类型列表，FEC类型列表，比特率范围列表和可接受的客户端信号列表。

公开(公告)号：US20150037026A1

公开(公告)日：2015-02-05

申请号：US14516341

申请日：2014-10-16

Applicant: Futurewei Technologies, Inc.

Inventor： Young Lee ,  Greg Bernstein

IPC: H04B10/077 ,  H04B10/27 ,  H04J14/02 ,  H04B10/079

CPC classification number: H04B10/0771 ,  H04B10/0795 ,  H04B10/27 ,  H04J14/02 ,  H04J14/0212 ,  H04J14/0257 ,  H04J14/0258 ,  H04J14/0267 ,  H04J14/0269 ,  H04J14/0271 ,  H04L45/123 ,  H04L45/42 ,  H04L45/62

Abstract: The disclosure includes an apparatus comprising: a path computation element (PCE) comprising a processor configured to: receive a path computation element protocol (PCEP) path computation request from a path computation client (PCC), wherein the path computation request comprises an impairment validation request that directs the PCE to perform an impairment validation of a network path; after receiving the path computation request, compute a network path; and perform an impairment validation of the network path specified by the impairment validation request. In another embodiment, the disclosure includes a method comprising: sending, by a PCC a PCEP path computation request to a PCE, wherein the request directs the PCE to perform routing and wavelength assignment (RWA) and a first impairment validation of a network path, wherein the request comprises a type of signal quality of the network path which indicates the first type of impairment validation to be performed.

Abstract translation: 本公开包括一种装置，包括：路径计算元件（PCE），包括处理器，其被配置为：从路径计算客户端（PCC）接收路径计算元件协议（PCEP）路径计算请求，其中所述路径计算请求包括损害验证 请求指示PCE执行网络路径的减损验证; 在接收到路径计算请求后，计算网络路径; 并执行由减值确认请求指定的网络路径的减值验证。 在另一个实施例中，本公开包括一种方法，包括：由PCC向PCE发送PCEP路径计算请求，其中所述请求指示PCE执行路由和波长分配（RWA）以及网络路径的第一受损验证， 其中所述请求包括所述网络路径的信号质量类型，其指示要执行的所述第一类型的减损验证。

公开(公告)号：US20130236174A1

公开(公告)日：2013-09-12

申请号：US13873710

申请日：2013-04-30

Applicant: FUTUREWEI TECHNOLOGIES, INC.

Inventor： Young Lee ,  Greg Bernstein

IPC: H04Q11/00

CPC classification number: H04Q11/0062 ,  H04L45/00 ,  H04L45/42 ,  H04L45/44 ,  H04L45/50 ,  H04L45/52 ,  H04L45/62 ,  H04Q2011/0075 ,  H04Q2011/0077

Abstract: An apparatus comprising a network element (NE) configured to support routing-associated signal compatibility constraint information that is associated with the NE using Generalized Multi-Protocol Label Switching (GMPLS) and an open shortest path first (OSPF) routing protocol, wherein the signal compatibility constraint information comprises a modulation type list, a Forward Error Correction (FEC) type list, a bit rate range list, and an acceptable client signal list, and wherein the signal compatibility constraint information is associated with a resource block (RB) pool for a plurality of NEs. Also disclosed is a network component comprising a transmitter unit configured to transmit signal compatibility constraints via GMPLS OSPF routing, wherein the signal compatibility constraints comprise a modulation type list, a FEC type list, a bit rate range list, and an acceptable client signal list.

Abstract translation: 一种装置，包括被配置为使用广义多协议标签交换（GMPLS）和开放式最短路径优先（OSPF）路由协议来支持与所述NE相关联的路由相关信号兼容约束信息的网元（NE），其中所述信号 兼容性约束信息包括调制类型列表，前向纠错（FEC）类型列表，比特率范围列表和可接受的客户端信号列表，并且其中信号兼容性约束信息与资源块（RB）池相关联，用于 多个NE。 还公开了一种网络组件，其包括被配置为经由GMPLS OSPF路由发送信号兼容性约束的发射机单元，其中所述信号兼容性约束包括调制类型列表，FEC类型列表，比特率范围列表和可接受的客户端信号列表。

公开(公告)号：US20130156428A1

公开(公告)日：2013-06-20

申请号：US13762905

申请日：2013-02-08

Applicant: Futurewei Technologies, Inc.

Inventor： Young Lee ,  Greg Bernstein

IPC: H04J14/02

CPC classification number: H04J14/0267 ,  H04J14/0256 ,  H04J14/0257 ,  H04J14/0258 ,  H04J14/0269 ,  H04J14/0271 ,  H04Q11/0062 ,  H04Q2011/0073 ,  H04Q2011/0086

Abstract: 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). 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, establishing impairment aware RWA (IA-RWA) based on the path computation information and a private impairment information for a vendor's equipment, and sending a path and an assigned wavelength based on the IA-RWA to the PCC. Disclosed is a method comprising establishing impairment aware routing and wavelength assignment for a plurality of network elements (NEs) in an optical network using routing and combined WA and IV.

Abstract translation: 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）。 还公开了一种网络组件，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，基于所述PCC建立损害感知RWA（IA-RWA） 路径计算信息和供应商设备的私人损害信息，以及将基于IA-RWA的路径和分配的波长发送到PCC。 公开了一种方法，该方法包括使用路由和组合的WA和IV来建立光网络中的多个网元（NE）的受损认知路由和波长分配。

公开(公告)号：US20130121694A1

公开(公告)日：2013-05-16

申请号：US13736237

申请日：2013-01-08

Applicant: FUTUREWEI TECHNOLOGIES, INC.

Inventor： Greg Bernstein ,  Young Lee

IPC: H04J14/02

CPC classification number: H04L45/507 ,  H04J14/02 ,  H04J14/0212 ,  H04J14/0238 ,  H04J14/0257 ,  H04J14/0258 ,  H04J14/0268 ,  H04J14/0269 ,  H04J14/0273 ,  H04L45/02 ,  H04L45/026 ,  H04L45/50 ,  H04L45/62 ,  H04Q11/0062 ,  H04Q2011/0073 ,  H04Q2011/0077 ,  H04Q2011/0086

Abstract: 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.