Centralized Routing Information Advertising Control

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Solution Overview

Problem

The complexity of configuring path weights across multiple routers in autonomous systems (AS) leads to poor user operability when dynamically adjusting flow outlets between ASs, requiring cooperative configuration that is cumbersome and difficult to manage.

Innovation Solution

A method and apparatus for controlling routing information advertising, where a control device determines a routing path and advertising range based on identifiers of forwarding devices, allowing centralized control of routing information advertisement, thereby simplifying configuration and enhancing operability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple routers cooperatively configure path weights to dynamically adjust flow outlets, then routing flexibility is improved, but configuration complexity increases and user operability deteriorates

Engineering Contradiction:
Improverouting flexibilityVSAvoidconfiguration complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent introduces a controller as an intermediary device that centrally manages path weight configuration for multiple routers. The controller receives routing information from routers, calculates appropriate path weights based on network state, and distributes configuration parameters back to the routers. This mediator approach enables dynamic routing adjustment without requiring complex cooperative configuration among multiple routers, thus improving routing flexibility while reducing configuration complexity.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If multiple routers cooperatively configure path weights to dynamically adjust flow outlets, then routing flexibility is improved, but ease of operation worsens

Engineering Contradiction:
Improverouting flexibilityVSAvoiduser operability
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent implements a self-service mechanism where the controller automatically monitors network routing information, calculates optimal path weights, and configures routers without requiring manual user intervention. The system autonomously adjusts flow outlets by having the controller subscribe to routing information from routers, compute appropriate weights based on predefined policies or algorithms, and push configuration parameters back to the relevant routers. This automation dramatically improves ease of operation while maintaining routing flexibility.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS11095553B2Method, apparatus and system for controlling routing information advertising
Publication Date: 2021.08.17 HUAWEI TECH CO LTD
  • US11095553B2 patent drawing
  • US11095553B2 patent drawing
  • US11095553B2 patent drawing

AI summary

A method, an apparatus and a system for controlling routing information advertising are provided, which relate to the field of communications and are used for reducing the configuration complexity and reinforcing the operability. The method includes: receiving, by a control device, first routing information sent by a first forwarding device; wherein the first routing information includes an identifier of the first forwarding device; determining a first routing path according to the identifier of the first forwarding device, an identifier of a second forwarding device and a routing path group; and determining an advertising range of second routing information for the second forwarding device according to the first routing path; for enabling the second forwarding device to advertise the second routing information according to the advertising range of the second routing information.