Check patentability & draft patents in minutes with Patsnap Eureka AI!

Method and device for automatic detection and calculation of PCE path between autonomous system domains

An autonomous system and path detection technology, applied in the field of communication, can solve problems such as the inability to calculate PCE dynamically, achieve the effects of improving scalability and maintainability, improving completeness and optimality, and simplifying network configuration

Inactive Publication Date: 2008-04-02
HUAWEI TECH CO LTD
View PDF0 Cites 22 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, the existing technology can only discover all potential PCEs, and cannot dynamically calculate the PCEs involved in the calculation of a certain TE-LSP; to discover the PCEs involved in the calculation of a certain TE-LSP, and the sequence relationship between PCEs, only Set the PCEs involved in the calculation of a TE-LSP and their order by manual configuration

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 and device for automatic detection and calculation of PCE path between autonomous system domains
  • Method and device for automatic detection and calculation of PCE path between autonomous system domains
  • Method and device for automatic detection and calculation of PCE path between autonomous system domains

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0068] The invention provides a method and a device for automatic detection and calculation of PCE paths between autonomous system domains. In order to make the object, technical solution and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0069] Referring to FIG. 2 , FIG. 2 is a schematic diagram of PCE path calculation from a source node to a destination node in an autonomous system domain. There are five autonomous systems in the figure, namely AS1, AS2, AS3, AS4, and AS5. Each AS establishes an external border gateway protocol (EBGP; External Border Gateway Protocol) through its own autonomous system boundary router (ASBR; Autonomous System boundaryrouter) router. Connection, as shown by the solid line in the figure above; assume that each AS has a PCE responsible for LSP calculation, namely: PCE1, PCE2, PCE3, PCE4 and PCE5, and these ...

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 invention relates to a method and device of automatically detecting an autonomous system inter-domain PCE path. The PCE searches a local BGP routing list based on information of destination node to find the corresponding upstream AS. The said PCE finds the upstream PCE corresponding with the upstream AS through local PCE list. The path list relation is established between the said PCE and the upstream PCE. The invention also provides a method and device of automatically computation of autonomous system inter-domain PCE path. The invention greatly simplifies the network configuration and solves the defect of hand operated configuration of current technique by dynamically collecting the PCE concerned with all the conditions for calculating the TE-LSP between any two nodes and PCE path formed by the PCE.

Description

technical field [0001] The invention relates to communication technology, in particular to a method and a device for automatic detection and calculation of inter-autonomous system PCE paths. Background technique [0002] With the development of IP network technology, IP technology has gradually become the first choice of various communication technologies, and the trend that all data is transmitted through IP (ALL IP) is becoming more and more urgent; ) deficiencies also affect the process of ALL IP. MPLS-based traffic engineering (Multiple Protocol Label switch Traffic Engineering; MPLS-TE), as a technology to optimize network resources and control network congestion, is a powerful impetus to improving network QoS. Traditional MPLS-TE uses the constraint-based shortest path algorithm (Constrained Shortest Path First; CSPF) to calculate the Traffic Engineering Label Switched Path (Traffic Engineering Label Switched Path; TE-LSP), and the calculation of the route is initiate...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L12/56H04L12/26H04L29/06H04L12/701
Inventor 陈国义
Owner HUAWEI TECH CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com