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Method, device and system for global concurrent optimization of label switching paths

A label switching path and optimization method technology, which is applied in the field of global concurrent optimization of label switching paths, can solve problems such as long time consumption, and achieve the effect of improving efficiency and reducing time

Inactive Publication Date: 2014-05-14
ZTE CORP
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Problems solved by technology

[0008] The present invention provides a global concurrent optimization method, device and system for a label switching path, so as to at least solve the problem in related technologies that when optimizing / re-optimizing a group of LSPs, it is necessary to establish and / or remove LSPs sequentially, which consumes a lot of time. long question

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  • Method, device and system for global concurrent optimization of label switching paths
  • Method, device and system for global concurrent optimization of label switching paths
  • Method, device and system for global concurrent optimization of label switching paths

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[0029] It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict. The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0030] An embodiment of the present invention provides a global concurrent optimization method for label switching paths, image 3 is a flow chart of a global concurrent optimization method for label switching paths according to an embodiment of the present invention, such as image 3 As shown, the following steps S302 to S304 are included.

[0031] Step S302, the path calculation unit calculates the paths of each LSP in a group of LSPs in the network, groups each LSP in a group of LSPs, and sorts the order of establishment and / or teardown of each LSP in the group to which it belongs, wherein , each LSP belongs to a group.

[0032] Step S304, the path calculation uni...

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Abstract

The invention discloses a method, a device and a system for global concurrent optimization of label switching paths. The method comprises the following steps: a path calculate element calculates all LSPs of a group of LSPs in a network, groups the LSPs, and sorts the LSPs according to the establishment and / or removal order in the group thereof, wherein each LSP belongs to one group; and the path calculate element sends a path calculate response message to a path calculate client, wherein the path calculate response message carries path calculate results of all the LSPs in one group of LSPs, grouping information of all the LSPs, and the establishment and / or removal order of all the LSPs in the group thereof. According to the method, a large number of LSPs are divided into a plurality of optimization / re-optimization groups, the establishment and / or removal order of all the LSPs in each group is established, optimization / re-optimization of the LSPs through a GCO method is carried out concurrently among all groups, and the optimization / re-optimization efficiency is improved.

Description

technical field [0001] The present invention relates to the field of communications, in particular to a global concurrent optimization method, device and system for label switching paths. Background technique [0002] Request For Comment (RFC) 5440 of the Internet Engineering Task Force (IETF) defines the Path Calculate Element Protocol (PCEP) for multi-protocol label switching / General Multi-Protocol Label Switching (Multi-Protocol Label Switching, referred to as MPLS / General Multi-Protocol Label Switching, referred to as GMPLS) network path calculation, path calculation unit (Path Calculate Element, referred to as PCE) and path calculation client Communication between Path Calculate Clients (PCC for short), including path calculation requests, path calculation responses, and communication methods and contents of a series of event notification messages. The PCEP protocol defines a variety of messages to realize PCC-PCE, and PCE-PCE communication, and defines a variety of o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/723H04L12/751H04L45/50H04L45/02
CPCH04L45/02H04L45/50H04W24/02
Inventor 唐可心林雪峰赵永利张引
Owner ZTE CORP
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