Method for discovering unit of route calculation

A path calculation unit, a technology of path calculation, applied in the direction of electrical components, digital transmission systems, transmission systems, etc.

Inactive Publication Date: 2007-12-26
HUAWEI TECH CO LTD
View PDF0 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, the object of the present invention is to provide a PCE discovery method, which solves one or more prob

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for discovering unit of route calculation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0031] The core idea of ​​the present invention is: the LSR in the network obtains the path computing capability information of each PCE in the network when it needs to perform path computing, and discovers the PCE according to the obtained path computing capability information, so that only the LSR that has the path computing request, that is, The PCC only performs PCE discovery, which prevents LSRs without calculation requests from also performing PCE discovery, reduces network traffic, and improves the efficiency of PCE discovery.

[0032] The PCE discovery method of the present invention is described in detail below through specific embodiments. The process flow of the method is shown in Figure 1, and specifically includes the following steps:

[0033] Step 10...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The method comprises: when needing to make path calculation, the label switch router (LSR) in network gets the path calculation capacity information of each PCE in network, and according to the obtained path calculation capacity information, finds PCE. In the invention, only LSR having path calculation request can make PCE finding so as to avoid the LSR without path calculation request makes PCE finding.

Description

technical field [0001] The present invention relates to multi-protocol label switching (MPLS) technology, in particular to a path computation element (PCE) discovery method. Background technique [0002] Computing a constraint-based shortest path, that is, constrained path computation is an important part of the MPLS technology and the traffic engineering (TE, Traffic Engineering) of the general multiprotocol label switching (GMPLS) technology. Currently, constrained path computation adopts the mode based on Path Computation Element (PCE, Path Computation Element), that is, when Path Computation Client (PCC, Path Computation Client), such as: Ingress Label Switching Router (Ingress LSR) needs to establish a label switching path (LSP), send a path calculation request to the PCE, and include the destination and constraint information in the request; after receiving the request, the PCE calculates that the request is satisfied according to the topology structure synchronized wi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H04L12/56
CPCH04L45/50H04L45/02H04L45/03
Inventor 张仁海
Owner HUAWEI TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap