公开(公告)号：US09276838B2

公开(公告)日：2016-03-01

申请号：US14022676

申请日：2013-09-10

Applicant: Futurewei Technologies, Inc.

Inventor： Young Lee ,  Greg Bernstein

IPC: H04L12/733 ,  H04L12/24 ,  H04L12/751 ,  H04L12/715 ,  H04L12/735

CPC classification number: H04L45/126 ,  H04L41/12 ,  H04L45/02 ,  H04L45/1283 ,  H04L45/64

Abstract: A computer program product comprising computer executable instructions stored on a non-transitory computer readable medium such that when executed by a processor cause a service specific virtual topology base, positioned in a network stratum, to receive a virtual service negotiation initiation message from an application stratum component, wherein the initiation message comprises a plurality of network source addresses, a plurality of network destination addresses, and a service specific objective, obtain a plurality of computed network paths that traverse a network of network stratum Network Elements (NEs) between the network source addresses and the network destination addresses and meet the service specific objective, and calculate service specific virtual topology that abstractly represents the computed service specific network paths.

Abstract translation: 一种计算机程序产品，包括存储在非暂时计算机可读介质上的计算机可执行指令，使得当由处理器执行时，导致位于网络层中的服务特定虚拟拓扑基础从应用层接收虚拟服务协商启动消息 组件，其中所述发起消息包括多个网络源地址，多个网络目的地地址和服务特定目标，获得穿过所述网络源之间的网络层网络元素（NE）的网络的多个计算的网络路径 地址和网络目的地址，并满足服务特定目标，并计算抽象地表示计算出的服务特定网络路径的服务特定虚拟拓扑。

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：US20160028583A1

公开(公告)日：2016-01-28

申请号：US14876313

申请日：2015-10-06

Applicant: Futurewei Technologies, Inc.

Inventor： Young Lee ,  Yangsong Xia

IPC: H04L12/24 ,  H04L29/08 ,  H04L12/26 ,  H04L12/715

CPC classification number: H04L41/0803 ,  H04L41/04 ,  H04L43/00 ,  H04L43/08 ,  H04L45/64 ,  H04L67/1029 ,  H04L69/32

Abstract: An apparatus comprising an application cross-stratum optimization (CSO) gateway (ACG) coupled to an application layer that handles a plurality of servers, a network CSO gateway (NCG) coupled to a network layer that handles a plurality of network nodes and configured to communicate with the ACG using a CSO protocol (CSOP), and a CSO interface established between the ACG and the NCG that enables the exchange of a plurality of CSOP messages to allow joint application-network resource allocation, provisioning, and optimization. Also disclosed is a network apparatus implemented method comprising sending a user profile from a user plane to an application plane, sending an application profile from the application plane to a network plane via a CSO interface between an ACG and a NCG, and sending network capability information from the network plane to the application plane via the CSO interface.

Abstract translation: 一种装置，包括耦合到处理多个服务器的应用层的应用跨层优化（CSO）网关（ACG），耦合到处理多个网络节点的网络层的网络CSO网关（NCG），并且被配置为 使用CSO协议（CSOP）与ACG进行通信，以及在ACG和NCG之间建立的CSO接口，其能够交换多个CSOP消息以允许联合应用 - 网络资源分配，供应和优化。 还公开了一种网络装置实现的方法，包括从用户平面向应用平面发送用户简档，经由ACG和NCG之间的CSO接口从应用平面向网络平面发送应用简档，以及发送网络能力信息 从网络平面通过CSO接口到应用平面。

公开(公告)号：US20150358235A1

公开(公告)日：2015-12-10

申请号：US14732268

申请日：2015-06-05

Applicant: Futurewei Technologies, Inc.

Inventor： Hong Zhang ,  Linda Dunbar ,  Young Lee

IPC: H04L12/801 ,  H04L12/741

CPC classification number: H04L47/12 ,  H04L45/745

Abstract: A method implemented by a network controller, comprising receiving an address filter from a service chain orchestrator, wherein the address filter comprises a plurality of service instance (SI) addresses associated with a plurality of SIs in a network, obtaining network topology information from a plurality of service function (SF) forwarders controlled by the network controller, wherein the network topology information indicates a plurality of network devices communicatively coupled to the plurality of controlled SF forwarders, and wherein at least some of the network devices are SI hosting devices, and generating a service chain topology map by building mappings between at least some of the plurality of controlled SF forwarders, the SI hosting devices, and the plurality of SIs according to the network topology information and the address filter.

Abstract translation: 一种由网络控制器实现的方法，包括从服务链协调器接收地址过滤器，其中所述地址过滤器包括与网络中的多个SI相关联的多个服务实例（SI）地址，从多个网络获取网络拓扑信息 由网络控制器控制的服务功能（SF）转发器，其中所述网络拓扑信息指示通信地耦合到所述多个受控SF转发器的多个网络设备，并且其中所述网络设备中的至少一些是SI主机设备，并且生成 通过根据网络拓扑信息和地址过滤器在多个受控SF转发器，SI主机设备和多个SI中的至少一些之间建立映射来生成服务链拓扑图。

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：US20140247827A1

公开(公告)日：2014-09-04

申请号：US14279733

申请日：2014-05-16

Applicant: Futurewei Technologies, Inc.

Inventor： Young Lee

IPC: H04L12/721 ,  H04L12/755 ,  H04L12/703

CPC classification number: H04L45/38 ,  H04L41/0816 ,  H04L41/0826 ,  H04L45/021 ,  H04L45/04 ,  H04L45/28 ,  H04L45/502

Abstract: A system for a global concurrent path computation in a communication network is disclosed. The system includes a path computation element communication protocol, wherein the protocol includes an indicator field indicating the global concurrent path computation, a global objective function field providing an overarching objective function, a global constraint field specifying at least one global constraint, a global concurrent vector field specifying at least one path computation request, and another indicator field indicating an outcome of a path computation request.

Abstract translation: 公开了一种用于通信网络中的全局并发路径计算的系统。 所述系统包括路径计算单元通信协议，其中所述协议包括指示全局并发路径计算的指示符字段，提供总体目标函数的全局目标函数域，指定至少一个全局约束的全局约束域，全局并发向量 指定至少一个路径计算请求的字段，以及指示路径计算请求的结果的另一指示符字段。

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：US11271817B2

公开(公告)日：2022-03-08

申请号：US17074456

申请日：2020-10-19

Applicant: FUTUREWEI TECHNOLOGIES, INC.

Inventor： Young Lee ,  Dhruv Dhody

IPC: G06F15/16 ,  H04L41/12 ,  H04L12/46 ,  H04L45/00 ,  H04L41/5051 ,  H04L45/50 ,  H04L41/50

Abstract: A method for establishing end-to-end tunnels extending across multiple domains using a network element. The method includes receiving a request from a customer controller to implement a virtual network (VN) created by the customer controller, wherein the VN identifies the end-to-end tunnels extending across the multiple domains, mapping the VN to available resources based on network constraints in response to the request, and transmitting, after the VN has been mapped, a message to a network controller managing one of the domains that includes a network path used to form a portion of one of the end-to-end tunnels, wherein the message includes an association object having a Type-Length-Value (TLV) field containing a virtual network identifier binding the network path to the VN.

公开(公告)号：US20210036931A1

公开(公告)日：2021-02-04

申请号：US17074456

申请日：2020-10-19

Applicant: FUTUREWEI TECHNOLOGIES, INC.

Inventor： Young Lee ,  Dhruv Dhody

IPC: H04L12/24 ,  H04L12/46 ,  H04L12/715 ,  H04L12/723

Abstract: A method for establishing end-to-end tunnels extending across multiple domains using a network element. The method includes receiving a request from a customer controller to implement a virtual network (VN) created by the customer controller, wherein the VN identifies the end-to-end tunnels extending across the multiple domains, mapping the VN to available resources based on network constraints in response to the request, and transmitting, after the VN has been mapped, a message to a network controller managing one of the domains that includes a network path used to form a portion of one of the end-to-end tunnels, wherein the message includes an association object having a Type-Length-Value (TLV) field containing a virtual network identifier binding the network path to the VN.