公开(公告)号：US09628367B2

公开(公告)日：2017-04-18

申请号：US13923613

申请日：2013-06-21

Applicant: ADVA Optical Networking SE

Inventor： Igor Bryskin

IPC: H04L12/751 ,  H04J14/02

CPC classification number: H04L45/02 ,  H04J14/02 ,  H04Q11/0005 ,  H04Q2011/0039 ,  H04Q2011/005

Abstract: An asymmetrical network switch adapted to auto-discover and advertise into a traffic engineering, TE, domain a switch detailed connectivity matrix, SDCM, containing for each allowed switching combination of interfaces of said asymmetrical network switch at least one switch detailed connectivity matrix entry, SDCME, wherein each said SDCME represents an internal to said asymmetrical network switch potential connection interconnecting the interfaces of said interface switching combination, wherein a SDCME advertisement includes a switch detailed connectivity matrix entry cost vector, SDCME CV, which comprises a set of attributes describing cost penalties in terms of various service characteristics that a network service incurs if it selects a path or a tree traversing the asymmetrical switch in accordance with the SDCME.

公开(公告)号：US09496958B1

公开(公告)日：2016-11-15

申请号：US14817377

申请日：2015-08-04

Applicant: ADVA Optical Networking SE

Inventor： Igor Bryskin ,  Aihua Guo

IPC: H04B10/00 ,  H04B10/27 ,  H04Q11/00

CPC classification number: H04B10/27 ,  H04J3/1652 ,  H04J2203/0058 ,  H04L45/62 ,  H04Q11/0062

Abstract: A method for traffic engineering on an optical transport network, OTN, comprising network elements implementing asymmetric OTN switches, said method comprising discovering by each network element of said network ODUk containers available on each of locally terminated traffic engineering, TE, links and identifying the switching limitations of the discovered ODUk containers with respect to how said ODUk containers are switchable onto the ODUk containers available on other locally terminated TE links; identifying by said network element groups of ODUk containers available on a given TE link exhibiting identical switching limitations; negotiating by said network element with its neighboring network elements properties of to be advertised child TE links each associated with a separate ODUk group; and advertising by said network element for each identified group of ODUk containers a separate child TE link parallel to the original parent TE link, wherein each advertised child TE link indicates the total number of available ODUk containers within the respective ODUk group along with the identified switching limitations exhibited by the ODUk containers of said ODUk group and wherein the re-advertised parent TE link indicates the number of available ODUk containers reduced to account for the ODUk containers associated with the separately advertised child TE links.

Abstract translation: 一种用于光传输网络OTN上的流量工程的方法，包括实现非对称OTN交换机的网元，所述方法包括：由本地端接的流量工程，TE，链路上每个可用的所述网络ODUk容器的每个网元发现， 关于如何将ODUk容器切换到其他本地终止的TE链路上可用的ODUk容器上的发现的ODUk容器的限制; 由给出的具有相同切换限制的给定TE链路上可用的ODUk容器的所述网元组识别; 由所述网络单元与其相邻网络元件协商将被广告化的子TE链路的属性，每个链路各自与单独的ODUk组相关联; 以及由所述网络单元为每个所标识的ODUk容器组广告与原始父TE链路并行的单独子TE链路，其中每个通告的子TE链路指示相应ODUk组内的可用ODUk容器的总数以及所识别的交换 所述ODUk组的ODUk容器表现出的限制，并且其中重新发布的父TE链路指示减少的可用ODUk容器的数量，以解释与单独通告的子TE链路相关联的ODUk容器。

公开(公告)号：US20150078163A1

公开(公告)日：2015-03-19

申请号：US14029110

申请日：2013-09-17

Applicant: ADVA Optical Networking SE

Inventor： Igor Bryskin

IPC: H04L12/815

CPC classification number: H04L47/22 ,  H04L45/04 ,  H04L45/123 ,  H04L45/44 ,  H04Q11/0001

Abstract: A method for scaling traffic engineering, TE, routing in a network, having a plurality of network elements (nodes) connected in a given layer to each other via links TE domain segments of a TE domain of said network are collapsed into a virtual TE nodes (VNs). Each VN having an allocated DE domain unique identifier and a detailed connectivity matrix, DCM, to provide a hierarchically virtualized network topology of the network.

Abstract translation: 一种用于缩放网络中的流量工程，TE，路由的方法，具有通过所述网络的TE域的TE域链路经由给定层彼此连接的多个网络元件（节点）折叠成虚拟TE节点 （VN）。 每个VN具有分配的DE域唯一标识符和详细连接矩阵DCM，以提供网络的分层虚拟化的网络拓扑。

公开(公告)号：US20140376404A1

公开(公告)日：2014-12-25

申请号：US13923613

申请日：2013-06-21

Applicant: ADVA Optical Networking SE

Inventor： Igor Bryskin

IPC: H04L12/751

CPC classification number: H04L45/02 ,  H04J14/02 ,  H04Q11/0005 ,  H04Q2011/0039 ,  H04Q2011/005

Abstract: An asymmetrical network switch adapted to auto-discover and advertise into a traffic engineering, TE, domain a switch detailed connectivity matrix, SDCM, containing for each allowed switching combination of interfaces of said asymmetrical network switch at least one switch detailed connectivity matrix entry, SDCME, wherein each said SDCME represents an internal to said asymmetrical network switch potential connection interconnecting the interfaces of said interface switching combination, wherein a SDCME advertisement includes a switch detailed connectivity matrix entry cost vector, SDCME CV, which comprises a set of attributes describing cost penalties in terms of various service characteristics that a network service incurs if it selects a path or a tree traversing the asymmetrical switch in accordance with the SDCME.

Abstract translation: 一种非对称网络交换机，适于自动发现和通告流量工程，TE域，交换机详细连接矩阵，SDCM，包含所述不对称网络交换机的每个允许的交换组合的接口，至少一个交换机详细连接矩阵条目，SDCME ，其中每个所述SDCME表示互连所述接口交换组合的接口的所述不对称网络交换机电位连接的内部，其中SDCME广告包括交换机详细连接矩阵输入成本向量SDCME CV，其包括描述成本惩罚的一组属性 在根据SDCME选择通过不对称开关的路径或树的网络服务引起的各种服务特性方面。

公开(公告)号：US09391923B2

公开(公告)日：2016-07-12

申请号：US13826142

申请日：2013-03-14

Applicant: ADVA Optical Networking SE

Inventor： Igor Bryskin ,  Vishnu Pavan Beeram

IPC: H04L12/70 ,  H04L12/911 ,  H04L12/24 ,  H04L12/751 ,  H04L12/721 ,  H04L12/717 ,  H04L12/26 ,  H04L12/723

CPC classification number: H04L47/829 ,  H04L41/04 ,  H04L41/5077 ,  H04L43/0811 ,  H04L45/10 ,  H04L45/42 ,  H04L45/44 ,  H04L45/50 ,  H04L45/62

Abstract: The subject matter described herein includes using a path computation element communication protocol (PCEP) as a signaling protocol during dynamic service provisioning in networks. According to one aspect of the subject matter described herein, a network uses a hard state point-to-point protocol as a signaling protocol during dynamic service provisioning in a control plane of the network. In one implementation, the point-to-point protocol is a path computation element communication protocol (PCEP).

Abstract translation: 本文描述的主题包括在网络中的动态服务提供期间使用路径计算单元通信协议（PCEP）作为信令协议。 根据本文描述的主题的一个方面，在网络的控制平面中的动态服务提供期间，网络使用硬状态点对点协议作为信令协议。 在一个实现中，点到点协议是路径计算元件通信协议（PCEP）。

公开(公告)号：US09231877B2

公开(公告)日：2016-01-05

申请号：US14029110

申请日：2013-09-17

Applicant: ADVA Optical Networking SE

Inventor： Igor Bryskin

IPC: H04L12/26 ,  H04L12/815 ,  H04Q11/00 ,  H04L12/721 ,  H04L12/715

CPC classification number: H04L47/22 ,  H04L45/04 ,  H04L45/123 ,  H04L45/44 ,  H04Q11/0001

Abstract: A method for scaling traffic engineering, TE, routing in a network, having a plurality of network elements (nodes) connected in a given layer to each other via links TE domain segments of a TE domain of said network are collapsed into a virtual TE nodes (VNs). Each VN having an allocated DE domain unique identifier and a detailed connectivity matrix, DCM, to provide a hierarchically virtualized network topology of the network.

Abstract translation: 一种用于缩放网络中的流量工程，TE，路由的方法，具有通过所述网络的TE域的TE域链路经由给定层彼此连接的多个网络元件（节点）折叠成虚拟TE节点 （VN）。 每个VN具有分配的DE域唯一标识符和详细连接矩阵DCM，以提供网络的分层虚拟化的网络拓扑。

公开(公告)号：US20140207967A1

公开(公告)日：2014-07-24

申请号：US13748079

申请日：2013-01-23

Applicant: ADVA OPTICAL NETWORKING SE

Inventor： Igor Bryskin

IPC: H04L12/56

Abstract: A method for provisioning a transport service in a multi-domain multi-layer network comprising at least one client layer network domain and at least one server layer network domain, comprising providing a virtual topology of each of said server layer network domain depending on connectivity requirements set by each of the served client layer network domains for a connectivity across said server layer network domains as at least one segment of said client layer network domain topology; determining an end-to-end path between two client nodes across one or more said server layer network domains based on an overlay topology comprising the virtual topologies provided by said server layer network domains, access links connecting client network nodes of said client layer network domains to said server layer network domains, and inter-domain links interconnecting said server layer network domains in the client layer; and provisioning a transport service via the determined end-to-end path.

Abstract translation: 一种用于在包括至少一个客户端层网络域和至少一个服务器层网络域的多域多层网络中提供传输服务的方法，包括根据连接要求提供每个所述服务器层网络域的虚拟拓扑 由每个所服务的客户端层网络域设置为跨所述服务器层网络域的连接，作为所述客户端层网络拓扑的至少一个段; 基于包括由所述服务器层网络域提供的虚拟拓扑的覆盖拓扑，确定穿过一个或多个所述服务器层网络域的两个客户机节点之间的端到端路径，连接所述客户端层网络域的客户端网络节点的接入链路 到所述服务器层网络域，以及将客户端层中的所述服务器层网络域互连的域间链路; 并通过确定的端到端路径提供传输服务。

公开(公告)号：US20130279514A1

公开(公告)日：2013-10-24

申请号：US13826142

申请日：2013-03-14

Applicant: ADVA Optical Networking SE

Inventor： Igor Bryskin ,  Vishnu Pavan Beeram

IPC: H04L12/70

CPC classification number: H04L47/829 ,  H04L41/04 ,  H04L41/5077 ,  H04L43/0811 ,  H04L45/10 ,  H04L45/42 ,  H04L45/44 ,  H04L45/50 ,  H04L45/62

Abstract: The subject matter described herein includes using a path computation element communication protocol (PCEP) as a signaling protocol during dynamic service provisioning in networks. According to one aspect of the subject matter described herein, a network uses a hard state point-to-point protocol as a signaling protocol during dynamic service provisioning in a control plane of the network. In one implementation, the point-to-point protocol is a path computation element communication protocol (PCEP).

Abstract translation: 本文描述的主题包括在网络中的动态服务提供期间使用路径计算元件通信协议（PCEP）作为信令协议。 根据本文描述的主题的一个方面，在网络的控制平面中的动态服务提供期间，网络使用硬状态点对点协议作为信令协议。 在一个实现中，点到点协议是路径计算元件通信协议（PCEP）。