公开(公告)号：US20180316566A9

公开(公告)日：2018-11-01

申请号：US15346423

申请日：2016-11-08

Applicant: Futurewei Technologies, Inc.

Inventor： Young Lee ,  Dhruv Dhody

IPC: H04L12/24 ,  H04L12/46

CPC classification number: H04L41/12 ,  H04L12/4633 ,  H04L12/4641 ,  H04L41/5051 ,  H04L41/5077 ,  H04L45/04 ,  H04L45/50

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：US09967175B2

公开(公告)日：2018-05-08

申请号：US14624156

申请日：2015-02-17

Applicant: Futurewei Technologies, Inc.

Inventor： Linda Dunbar ,  Young Lee ,  Shibi Huang

IPC: H04L12/707

CPC classification number: H04L45/22

Abstract: When there is a change from a first service chain instance path to a second service chain instance path, the head-end node of the second service chain instance path is notified to include information that specifies the second service chain instance path in data packets to be routed on the second service chain instance path. That information is used to route those data packets until the nodes in the second service chain instance path complete installation of a new steering policy. When those nodes have installed the new steering policy, the information that specifies the second service chain instance path may no longer be included in data packets, and the steering policy is then used to route the data packets.

公开(公告)号：US09722927B2

公开(公告)日：2017-08-01

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.

公开(公告)号：US09392348B2

公开(公告)日：2016-07-12

申请号：US14535918

申请日：2014-11-07

Applicant: Futurewei Technologies, Inc.

Inventor： Young Lee ,  Greg Bernstein

IPC: H04B10/00 ,  H04Q11/00 ,  H04J14/02 ,  H04L12/751 ,  H04L12/717 ,  H04L12/721

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.

公开(公告)号：US20150155965A1

公开(公告)日：2015-06-04

申请号：US14579776

申请日：2014-12-22

Applicant: Futurewei Technologies, Inc.

Inventor： Young Lee ,  Greg Bernstein

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

CPC classification number: H04Q11/0062 ,  H04J14/021 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0227 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0284 ,  H04L45/00 ,  H04L45/02 ,  H04L45/50 ,  H04L45/62 ,  H04Q11/0005 ,  H04Q2011/0016 ,  H04Q2011/0058 ,  H04Q2011/0073 ,  H04Q2011/0079 ,  H04Q2011/0086

Abstract: A network component comprising at least one processor configured to implement a method comprising collecting wavelength availability information associated with a wavelength switched optical network (WSON), receiving a path computation request to transport a signal through the WSON, calculating at least one route through the WSON for the signal, and assigning at least one wavelength for the signal to use along the route. Also disclosed is a network comprising a first path computation element (PCE) configured to compute at least one route for a signal between a source and a destination, and a second PCE in communication with the first PCE, wherein the second PCE is configured to receive the route from the first PCE and assign at least one wavelength to the route.

Abstract translation: 一种网络组件，包括至少一个处理器，其被配置为实现一种方法，包括收集与波长交换光网络（WSON）相关联的波长可用性信息，接收通过所述WSON传输信号的路径计算请求，通过所述WSON计算至少一个路由 并且为沿着该路线使用的信号分配至少一个波长。 还公开了一种网络，其包括被配置为计算源与目的地之间的信号的至少一个路由的第一路径计算元件（PCE）和与第一PCE通信的第二PCE，其中第二PCE被配置为接收 来自第一个PCE的路由，并将至少一个波长分配给路由。

公开(公告)号：US20140297830A1

公开(公告)日：2014-10-02

申请号：US14303824

申请日：2014-06-13

Applicant: Futurewei Technologies, Inc.

Inventor： Young Lee

IPC: H04L29/08

CPC classification number: H04L67/10 ,  H04L67/1002 ,  H04L67/28

Abstract: Disclosed is a method comprising: transmitting, by a cloud service control gateway (CSCG) positioned in an application stratum, a resource query to a network control gateway (NCG) positioned in a network stratum, wherein the resource query comprises a source address, a destination address list, and a network resource requirement. Also disclosed is a method comprising: receiving, by a network control gateway (NCG) positioned in a network stratum, a resource query from a cloud service control gateway (CSCG) positioned in an application stratum, wherein the resource query comprises source address, a destination address list, and a network resource requirement. Also disclosed is a method comprising: receiving, by a network control gateway (NCG) positioned in a network stratum, a resource reservation request from a cloud service control gateway (CSCG) positioned in an application stratum, wherein the resource reservation request comprises a destination address list and a first network resource requirement.

Abstract translation: 公开了一种方法，包括：通过位于应用层中的云服务控制网关（CSCG）向位于网络层中的网络控制网关（NCG）发送资源查询，其中所述资源查询包括源地址， 目的地址列表和网络资源需求。 还公开了一种方法，包括：通过位于网络层中的网络控制网关（NCG）从位于应用层中的云服务控制网关（CSCG）接收资源查询，其中所述资源查询包括源地址， 目的地址列表和网络资源需求。 还公开了一种方法，包括：通过位于网络层中的网络控制网关（NCG）从位于应用层中的云服务控制网关（CSCG）接收资源预留请求，其中所述资源预留请求包括目的地 地址列表和第一个网络资源要求。

公开(公告)号：US20140016467A1

公开(公告)日：2014-01-16

申请号：US13937942

申请日：2013-07-09

Applicant: Futurewei Technologies, Inc.

Inventor： Greg Bernstein ,  Young Lee

IPC: H04L12/801

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：US11316730B2

公开(公告)日：2022-04-26

申请号：US16206705

申请日：2018-11-30

Applicant: Futurewei Technologies, Inc.

Inventor： Young Lee ,  Yangsong Xia

IPC: H04L12/24 ,  H04L41/0803 ,  H04L45/64 ,  H04L67/1029 ,  H04L69/32 ,  H04L41/04 ,  H04L43/08 ,  H04L43/00

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.

公开(公告)号：US20190327109A1

公开(公告)日：2019-10-24

申请号：US15958794

申请日：2018-04-20

Applicant: Futurewei Technologies, Inc.

Inventor： James N. Guichard ,  Young Lee

IPC: H04L12/46

Abstract: A method for establishing a tunnel between VTEPs includes receiving at an SDN controller a tunnel creation request to establish a VxLAN tunnel from a first VTEP to a second VTEP, determining a VxLAN tunnel of network nodes coupling the first VTEP to the second VTEP, assigning a SvcPI to the VxLAN tunnel, and sending a tunnel initiation command to the first VTEP, the tunnel initiation command causing the first VTEP to convert an Ethernet frame to a path-ID frame by adding an NSH encapsulation header and to forward the path-ID frame to the next network node in the VxLAN tunnel.

公开(公告)号：US20190313167A1

公开(公告)日：2019-10-10

申请号：US15948850

申请日：2018-04-09

Applicant: Futurewei Technologies, Inc.

Inventor： Young Lee ,  Italo Busi

IPC: H04Q11/00

Abstract: A method is provided to establish a path in an optical domain to couple first and second IP routing domains for use by a VPN. A network controller (NC) receives an optical path setup command and, in response, determines an optical path ID identifying an optical path. The NC sends a mapping command to a domain controller (DC) associated with the first IP routing domain and receives routing information that includes a VPN label. The NC sends a forwarding command including the routing information to a DC associated with the second IP routing domain, the forwarding command configured to cause a termination point in the second IP routing domain to forward a packet to the optical path when the packet comprises elements of the routing information.