公开(公告)号：US09825845B2

公开(公告)日：2017-11-21

申请号：US14732198

申请日：2015-06-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yu Wang ,  Jun Sun

IPC: H04L12/28 ,  H04L12/729 ,  H04L12/701 ,  H04L12/717 ,  H04J3/16

CPC classification number: H04L45/125 ,  H04J3/1611 ,  H04J3/1652 ,  H04J2203/0098 ,  H04L45/00 ,  H04L45/42

Abstract: The present invention provides a path computation method, a Path Computation Element (PCE), a node device, and a network system. The method includes: receiving a path computation request message (S201), where the path computation request message carries a network type identifier and traffic parameter constraint conditions of a path required to be computed, and the network type identifier indicates a type of a network where the path required to be computed locates; determining the network through the network type identifier, and computing the path in the network according to the traffic parameter constraint conditions (S202); and sending a path computation response message (S203), where the path computation response message carries the computed path. The problem of distinguishing and computing Traffic Engineer (TE) paths for various types of services in a multi-region convergence network is solved.

公开(公告)号：US20150271055A1

公开(公告)日：2015-09-24

申请号：US14732198

申请日：2015-06-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yu Wang ,  Jun Sun

IPC: H04L12/729 ,  H04J3/16

CPC classification number: H04L45/125 ,  H04J3/1611 ,  H04J3/1652 ,  H04J2203/0098 ,  H04L45/00 ,  H04L45/42

Abstract: The present invention provides a path computation method, a Path Computation Element (PCE), a node device, and a network system. The method includes: receiving a path computation request message (S201), where the path computation request message carries a network type identifier and traffic parameter constraint conditions of a path required to be computed, and the network type identifier indicates a type of a network where the path required to be computed locates; determining the network through the network type identifier, and computing the path in the network according to the traffic parameter constraint conditions (S202); and sending a path computation response message (S203), where the path computation response message carries the computed path. The problem of distinguishing and computing Traffic Engineer (TE) paths for various types of services in a multi-region convergence network is solved.

Abstract translation: 本发明提供路径计算方法，路径计算元件（PCE），节点设备和网络系统。 该方法包括：接收路径计算请求消息（S201），其中路径计算请求消息携带要计算的路径的网络类型标识符和业务参数约束条件，并且网络类型标识符指示网络的类型， 需要计算的路径位置; 通过网络类型标识确定网络，并根据流量参数约束条件计算网络中的路径（S202）; 并发送路径计算响应消息（S203），其中路径计算响应消息携带所计算的路径。 解决了多区域融合网络中各种业务的区分和计算流量工程师（TE）路径问题。