公开(公告)号：US20170078187A1

公开(公告)日：2017-03-16

申请号：US15357761

申请日：2016-11-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haomian ZHENG ,  Yi Lin

IPC: H04L12/721 ,  H04L12/44 ,  H04L12/46

CPC classification number: H04L45/124 ,  H04L12/44 ,  H04L12/4641 ,  H04L29/06 ,  H04L45/00 ,  H04L45/04 ,  H04L45/12 ,  H04L45/36 ,  H04L45/48 ,  H04L47/786 ,  H04L47/826

Abstract: The present application provides virtual shortest path tree establishment and processing methods and a path computation element, so as to improve a resource utilization rate in a process of establishing and processing a virtual shortest path tree. In a process of establishing the virtual shortest path tree, a cost of an established path from a root node (a destination node) to a leaf node is compared with a cost threshold, and a new path branch is added to the VSPT when the cost is less than the cost threshold. In a process of processing the virtual shortest path tree, a resource occupied by a path branch in the VSPT that does not belong to an optimal path is released after the optimal path is obtained.

Abstract translation: 本申请提供虚拟最短路径树建立和处理方法以及路径计算元素，以便在建立和处理虚拟最短路径树的过程中提高资源利用率。 在建立虚拟最短路径树的过程中，将从根节点（目的地节点）到叶节点的建立路径的成本与成本阈值进行比较，并且当成本阈值添加新路径分支时，VSPT 小于成本阈值。 在处理虚拟最短路径树的过程中，在获得最优路径之后释放在VSPT中不属于最佳路径的路径分支占用的资源。

公开(公告)号：US20150207753A1

公开(公告)日：2015-07-23

申请号：US14676425

申请日：2015-04-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yi Lin ,  Qiuyou Wu ,  Fatai Zhang ,  Jianrui Han ,  Xiaobing Zi

IPC: H04L12/913 ,  H04J14/08 ,  H04Q11/00 ,  H04J3/16

CPC classification number: H04L47/724 ,  H04J3/1652 ,  H04J14/08 ,  H04J2203/0067 ,  H04Q11/0066 ,  H04Q2011/0086

Abstract: Embodiments of the present invention relate a method, an apparatus, and a system for assigning a tributary port number. The method includes: receiving a service path request message including a service type for establishing a service path used to bear a Lower Order ODU service; determining an OTU link; determining a free tributary slot resource in the OTU link; if a MSI bytes in the OTU link indicates a service type, assigning a tributary port number other than tributary port numbers used by Lower Order ODU services having the same type as the Lower Order ODU service in the OTU link; or if the MSI bytes in the OTU link does not indicate a service type, assigning a tributary port number other than tributary port numbers used by all types of Lower Order ODU services in the OTU link; and sending a service path acknowledgment message to the neighboring node.

Abstract translation: 本发明的实施例涉及一种用于分配支路端口号的方法，装置和系统。 该方法包括：接收包括业务类型的业务路径请求消息，用于建立用于承载低阶ODU业务的业务路径; 确定OTU链路; 确定OTU链路中的自由支路时隙资源; 如果OTU链路中的MSI字节表示服务类型，则在OTU链路中分配与低阶ODU业务相同类型的低阶ODU业务使用的支路端口号以外的支路端口号; 或者如果OTU链路中的MSI字节不表示服务类型，则在OTU链路中分配除所有类型的低阶ODU业务所使用的支路端口号以外的支路端口号; 并向邻近节点发送业务路径确认消息。