公开(公告)号：EP2464036A4

公开(公告)日：2016-06-15

申请号：EP10813272

申请日：2010-05-21

申请人： ZTE CORP

发明人： WANG JIAYU

IPC分类号： H04L12/721 ,  H04J14/02 ,  H04L12/703 ,  H04L12/707 ,  H04L12/751

CPC分类号： H04L45/22 ,  H04J14/0257 ,  H04J14/0267 ,  H04J14/0268 ,  H04L45/02 ,  H04L45/28 ,  H04L45/62

摘要： The disclosure discloses an apparatus and method for rerouting multiple traffics. The apparatus includes a path computation unit and a traffic path incorporation unit, the path computation unit forwards a received uniform route computation notification message including multiple pieces of failed traffic connection information to the traffic path incorporation unit, and also forwards a route inquiry request transmitted from the head node of the fault traffic to the traffic path incorporation unit; the traffic path incorporation unit analyzes and detects the failed traffic connection information according to traffic incorporating and route inquiry statistic algorithm, and uniformly obtains and records the recovery route information from the path computation unit; when receiving the route inquiry request forwarded by the path computation unit, the traffic path incorporation unit is further configured to search the record according to the route inquiry request, and return the found corresponding recovery route information to the head node which requests the recovery through the path computation unit. The disclosure uses a incorporating and uniform route inquiry method, the resource loss of the path computation unit is reduced, and the efficiency of link restoration is improved.

摘要翻译： 本公开公开了一种用于重新路由多个业务的装置和方法。 该设备包括路径计算单元和业务路径合并单元，路径计算单元将接收到的包含多条故障业务连接信息的均匀路由计算通知消息转发到业务路径合并单元，并且转发从 故障流量的头节点到交通路径并入单元; 交通路径整合单元根据流量合并和路由查询统计算法对流量连接信息进行分析和检测，从路径计算单元统一获取并记录恢复路由信息; 当接收到由路径计算单元转发的路由查询请求时，业务路径合并单元还被配置为根据路由查询请求搜索记录，并将找到的相应恢复路由信息返回给请求恢复的头节点 路径计算单元。 本发明使用并入和统一的路由查询方法，减少了路径计算单元的资源损失，提高了链路恢复的效率。

公开(公告)号：EP2963868A4

公开(公告)日：2016-01-20

申请号：EP14756911

申请日：2014-02-28

申请人： ZTE CORP

发明人： LV WENXIANG ,  WANG JIAYU ,  LU GANG ,  WANG ZHIHONG ,  CAO XUPING

IPC分类号： H04L12/715 ,  H04L12/24 ,  H04L12/717

CPC分类号： H04L45/02 ,  H04L41/12 ,  H04L41/145 ,  H04L41/28 ,  H04L45/42

摘要： A method and device for long-term storage of cross-domain path information are provided. The method is applied on a stateless PCE. In the method, a first PCE computes a path; a path head node sends, to the first PCE, query information for querying intra-domain path information of the first domain corresponding to a first PATH-KEY, generates, on the basis of a query result returned by the first PCE, a third PATH-KEY having a unique identifier and corresponding to the intra-domain path information of the first domain and stores the third PATH-KEY; the path head node sends, to a head node in a second domain, an inter-domain path establishment signalling comprising the third PATH-KEY and a second PATH-KEY, to make the head node in the second domain send, to a second PCE, query information for querying intra-domain path information of the second domain corresponding to the second PATH-KEY, generate, on the basis of a query result returned by the second PCE, a fourth PATH-KEY having a unique identifier and corresponding to the intra-domain path information of the second domain, and store the fourth PATH-KEY; and, the path head node modifies information of the path from the path head node to the path tail node on the basis of a reverse signalling returned by the path tail node and comprising the third PATH-KEY and the fourth PATH-KEY

摘要翻译： 提供了跨域路径信息长期存储的方法和装置。 该方法应用于无状态PCE。 在该方法中，第一PCE计算路径; 路径头节点向第一PCE发送用于查询与第一PATH-KEY相对应的第一域的域内路径信息的查询信息，基于由第一PCE返回的查询结果生成第三路径 -KEY具有唯一标识符并对应于第一域的域内路径信息并存储第三路径密钥; 路径头节点向第二域中的头节点发送包括第三PATH-KEY和第二PATH-KEY的域间路径建立信令，以使第二域中的头节点发送到第二PCE 用于查询与第二PATH-KEY相对应的第二域的域内路径信息的查询信息，基于由第二PCE返回的查询结果生成具有唯一标识符并对应于第二PCE的第四PATH-KEY的查询信息 第二域的域内路径信息，并存储第四路径密钥; 并且，路径头节点基于由路径尾节点返回的反向信令，修改从路径头节点到路径尾节点的路径的信息，并且包括第三PATH-KEY和第四PATH-KEY

公开(公告)号：EP3214800A4

公开(公告)日：2017-10-04

申请号：EP15866301

申请日：2015-09-25

申请人： ZTE CORP

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：EP2562950A4

公开(公告)日：2017-03-15

申请号：EP10850573

申请日：2010-10-15

申请人： ZTE CORP

发明人： WANG WENYING ,  WANG JIAYU

IPC分类号： H04J14/02

CPC分类号： H04J14/0257 ,  H04J14/0267 ,  H04J14/0269

摘要： The disclosure discloses a calculation method for wavelength assignment, in which an inner-node wavelength connectivity matrix is constructed for each node on a routing path, and an operation is performed on the inner-node wavelength connectivity matrix of each node, sequentially from a first node on the routing path to a last node on the routing path, according to a preset matrix calculation method. The disclosure also discloses a calculation device for wavelength assignment. The calculation time for the wavelength assignment are reduced by applying the calculation method and device.

摘要翻译： 本公开公开了一种用于波长分配的计算方法，其中为路由路径上的每个节点构建内部节点波长连通性矩阵，并且从第一个节点顺序地对每个节点的内部节点波长连接矩阵执行操作 根据预设的矩阵计算方法，路由路径上的节点到路由路径上的最后一个节点。 本公开还公开了一种用于波长分配的计算装置。 通过应用计算方法和设备减少波长分配的计算时间。