Data transmission method, device and system

A technology of data transmission and parameters, applied in the field of data transmission, can solve the problems of complex data collection process, achieve the effect of simplifying the scheme and enhancing the feasibility

Active Publication Date: 2016-11-16
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, using the above two types of protocols to collect the data used to calculate the

Method used

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  • Data transmission method, device and system
  • Data transmission method, device and system
  • Data transmission method, device and system

Examples

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Embodiment Construction

[0068] The embodiment of the present invention provides a method, device and system for data transmission, which are used to collect relevant data for calculating LSP without extending the routing protocol when transmitting data, and only expand PCEP, which simplifies the solution , and only using PCEP for data collection is conducive to the realization of protocol standardization.

[0069] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the present invention and the above drawings are used to distinguish similar objects, and not necessarily Used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of practice in sequences other than those illustrated or described herein.

[0070] The embodiment of the present invention is mainly applied to a PCEP-based netw...

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Abstract

The invention discloses a data transmission method. The method comprises the steps that a path computation client PCC sends a first service state parameter to a path computation element PCE by employing a path computation element communication protocol PCEP; the PCC sends a service performance statistic state parameter to the PCE by employing the PCEP; and the PCC sends an LSP (label switched path) service adjustment request to the PCE when the service performance statistic state parameter satisfies a label switched path LSP adjustment condition, wherein the LSP service adjustment request is used for requesting the PCE to determine a target LSP. The embodiment of the invention also provides the PCC and the PCE. According to the embodiment of the method, the device and the system, when data is transmitted, a routing protocol is unnecessarily expanded; the LSP related data required for computing the optimum path can be collected only by expanding the PCEP; and the scheme is simplified.

Description

technical field [0001] The present invention relates to the technical field of network communication, in particular to a data transmission method, device and system. Background technique [0002] In the network structure based on Path Computation Element (English: Path Computation Element, PCE), the PCE server is the functional entity responsible for path computation. Computation Client, PCC) request calculation path. [0003] The PCE communication protocol (English: PCE Communication Protocol, PCEP) defines a process of dynamically adjusting a Label Switched Path (English: Label Switched Path, LSP). The PCE performs path calculation according to a traffic engineering database (English full name: Traffic Engineering Database, English abbreviation: TED). The data in TED is collected using a routing protocol, which can be an extended Border Gateway Protocol (English: Border Gateway Protocol, BGP) or an extended Interior Gateway Protocol (English: International Group Program,...

Claims

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Application Information

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IPC IPC(8): H04L12/721H04L12/723H04L12/14H04L45/50
CPCH04L12/1407H04L45/12H04L45/123H04L45/124H04L45/50
Inventor 生绪博杨佩林
Owner HUAWEI TECH CO LTD
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