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Method for determining label switched path and path computation elements

A label switching path and unit determination technology, applied in the field of communication, can solve problems such as the inability to determine the LSP

Active Publication Date: 2014-07-30
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The embodiment of the present invention provides a method for determining an LSP and a PCE to solve the defect in the prior art that the LSP cannot be determined when the controller running in the SDN domain and the server running in the traditional domain coexist.

Method used

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  • Method for determining label switched path and path computation elements
  • Method for determining label switched path and path computation elements
  • Method for determining label switched path and path computation elements

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Embodiment Construction

[0083] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0084] The term "and / or" in this article is just an association relationship describing associated objects, which means that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist simultaneously, and there exists alone B these three situations. In addition, the character " / " in this article generally ind...

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Abstract

The invention relates to the technical field of communication, and discloses a method for determining an LSP and PCEs. According to the scheme, the information of first target network equipment, the identification information of entry network equipment and the identification information of exit network equipment are carried in a path building request message sent by the first PCE to the second PCE, the first target network equipment is connected with network equipment in the domain where the second PCE is located in all the network equipment included in a first target path, a second target path can be determined by the second PCE receiving the path building request message, the first PCE and the second PCE are not limited, and therefore the defect that in the prior art, the LSP between a controller operating in an SDN domain and a server operating in a traditional domain cannot be determined under the condition that the controller operating in the SDN domain and the server operating in the traditional domain are arranged at the same time is overcome.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a method for determining an LSP and a PCE (Path Computation Element, Path Computation Element). Background technique [0002] SDN (Software Defined Network) is a new type of network architecture. Its core technology separates the control plane of network equipment from the data plane, realizes flexible control of network traffic, and provides a platform for core network and application innovation. good platform. [0003] There are two types of devices in SDN: controllers and switches. Among them, the controller is responsible for centralized control of the network and sends a flow table to the switch; and each switch has a flow table for packet search and forwarding. Such as Figure 1A shown. [0004] In practical applications, the deployment of the SDN network architecture is gradually deployed in stages, and it is impossible to completely replace the traditio...

Claims

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Application Information

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IPC IPC(8): H04L12/723H04L12/715H04L45/50
Inventor 董雯霞
Owner HUAWEI TECH CO LTD
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