公开(公告)号：EP3742682A1

公开(公告)日：2020-11-25

申请号：EP19741265.3

申请日：2019-01-17

申请人： ZTE Corporation

发明人： QIAN, Jia ,  LU, Rongduo

IPC分类号： H04L12/703 ,  H04L12/24

摘要： Disclosed are an end-to-end rerouting method and apparatus. The method includes: receiving a failure notification reported by a single-domain controller; searching for a cross-domain end-to-end service corresponding to the failure notification according to the failure notification; and sending a service update request and a service setup request to a single-domain controller corresponding to a single-domain service in the cross-domain end-to-end service according to the cross-domain end-to-end service to implement a rerouting for the cross-domain end-to-end service.

公开(公告)号：EP2824886A1

公开(公告)日：2015-01-14

申请号：EP13775429.7

申请日：2013-04-09

申请人： ZTE Corporation

发明人： CAO, Xuping ,  WANG, Zhihong ,  LU, Gang ,  QIAN, Jia

IPC分类号： H04L29/06 ,  H04L12/70

CPC分类号： H04L67/141 ,  H04L45/42 ,  H04L67/14 ,  H04L69/14 ,  H04L69/16 ,  H04L69/168

摘要： Disclosed are a path computation element communication protocol (PCEP) session establishment method and device. The technical solution comprises: at a PCC or PCE node device side, before needing to establish a PCEP session, allocating a TCP connection communication end attribute to a PCC or a PCE at either end in the manner of static configuration/dynamic designation or election mechanism automatic allocation; or detecting whether to establish a TCP connection relationship, if not, actively connecting the opposite end, and if a plurality of TCP connection relationships has been established, simultaneously cutting off a plurality of connections at both ends, and reinitiating a TCP connection after waiting a random time respectively. The present invention achieves the establishment of a PCEP session in the multi-PCE cooperation computation scenario under the condition of meeting two constraint conditions which are specified by a protocol.

摘要翻译： 本发明公开了一个路径计算元件通信协议（PCEP）会话建立的方法和装置。 的技术方案包括：在PCC或PCE节点装置侧，需要建立PCEP会话，在静态配置/动态指定或选机构的方式分配在任一端TCP连接的通信端属性到PCC或PCE之前 自动分配; 或检测是否建立一个TCP连接关系，如果不是，积极连接的相对端，并且如果TCP连接关系的多元性已经建立，同时切断在两端连接的多个，并且等待之后重新发起TCP连接 分别随机时间。 本发明实现会议由协议指定哪两个约束条件的情况下，在多PCE计算合作方案建立PCEP会话。

公开(公告)号：EP3306859A1

公开(公告)日：2018-04-11

申请号：EP16802426.3

申请日：2016-05-04

申请人： ZTE Corporation

发明人： QIAN, Jia ,  FU, Xihua

IPC分类号： H04L12/24 ,  H04L29/12

CPC分类号： H04L29/12 ,  H04L41/00 ,  H04L45/22 ,  H04L45/64

摘要： Provided are a service protection setting method, a controller and an optical network device, which can realize configuration of service protection of an optical network by extending an OpenFlow protocol. The method includes: a controller sends an OpenFlow message to an optical network node device to instruct the optical network node device to set service protection, herein the controller sends a flow configuration message and a group configuration message to a head node, the controller sends a flow configuration message to a middle node and the controller sends a flow configuration message and a group configuration message to a tail node.

摘要翻译： 提供了一种业务保护设置方法，控制器和光网络设备，通过扩展OpenFlow协议可以实现光网络业务保护的配置。 该方法包括：控制器向光网络节点设备发送OpenFlow消息，指示光网络节点设备设置业务保护，此处控制器向头节点发送流配置消息和组配置消息，控制器发送 将流配置消息发送给中间节点，控制器向尾节点发送流配置消息和组配置消息。

公开(公告)号：EP3214800A1

公开(公告)日：2017-09-06

申请号：EP15866301.3

申请日：2015-09-25

申请人： ZTE Corporation

发明人： LU, Chunhuai ,  WANG, Jiayu ,  QIAN, Jia ,  XIONG, Quan

IPC分类号： H04L12/24 ,  H04L12/703

CPC分类号： H04L41/5035 ,  H04L41/0654 ,  H04L41/0668 ,  H04L41/0896 ,  H04L41/12 ,  H04L41/145 ,  H04L41/5009

摘要： A method and device for implementing capacity planning are provided. The method includes: acquiring a current network topology and service information; increasing the number of links between every two nodes in the acquired network topology to a preset maximum number; traversing all link fault combinations in a network, for each of the link fault combinations, calculating services affected by the link fault combination according to the acquired service information, and searching for a restoration route for each of the calculated affected services; and after deleting all added and unused links in the network topology, acquiring a capacity planning result based on a network topology after deleting. Through the scheme of embodiments of the present invention, after the number of links between every two nodes in the network topology is increased to the preset maximum number, capacity planning is performed, thereby improving the success rate of the capacity planning.

摘要翻译： 提供了一种实现容量规划的方法和装置。 该方法包括：获取当前的网络拓扑和业务信息; 将所获取的网络拓扑中每两个节点之间的链路数量增加到预设的最大数量; 遍历网络中的每个链路故障组合，根据获取的业务信息计算受链路故障组合影响的业务，并为每个计算出的受影响业务搜索恢复路由; 删除网络拓扑中所有添加和未使用的链路后，删除后基于网络拓扑获取容量规划结果。 通过本发明实施例的方案，在网络拓扑中每两个节点之间的链路数增加到预设的最大数量后，进行容量规划，提高了容量规划的成功率。

公开(公告)号：EP3611848A1

公开(公告)日：2020-02-19

申请号：EP18776662.1

申请日：2018-03-29

申请人： ZTE Corporation

发明人： QIAN, Jia ,  LI, Hongbiao

IPC分类号： H04B10/032

摘要： Disclosed are a method and an apparatus for generating a shared risk link group. The method includes: determining information of paths to be analyzed according to currently calculated first path information of a service layer and existing second path information, and initializing an SRLG value of each determined path to be analyzed; determining whether the paths to be analyzed in the information of paths to be analyzed coincide, and according to the SRLG values of a plurality of paths to be analyzed which paths are determined to be coincident, updating SRLG value of each path to be analyzed in the plurality of paths to be analyzed which paths are determined to be coincident.