Asymmetrical Dynamic Routing for Bandwidth Adjustment

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Current communication networks face challenges in dynamically adjusting bandwidth capacity to meet changing traffic demands, leading to underutilization of resources and latency issues due to fixed channel plans and bandwidth mismatches between requests and responses.

Innovation Solution

A network device with active and idle optical data ports, along with light re-directing devices, dynamically adjusts bandwidth capacity by enabling idle ports and redirecting data signals when bandwidth thresholds are exceeded, using a communication protocol to manage wavelength allocation and authorization notifications.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If conventional network devices use fixed bandwidth capacity, then network stability is maintained, but bandwidth utilization efficiency deteriorates due to under-utilized resources during low traffic periods

Engineering Contradiction:
Improvebandwidth utilization efficiencyVSAvoidnetwork configuration complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent implements dynamic bandwidth adjustment by enabling network devices to flexibly allocate bandwidth capacity based on real-time traffic demands. The system transitions from fixed bandwidth allocation to dynamic allocation, allowing bandwidth to be adjusted upward during high-demand periods and downward during low-demand periods, thereby improving utilization efficiency while maintaining operational stability through automated control mechanisms.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes the bandwidth capacity parameter dynamically based on traffic conditions. By monitoring traffic patterns and automatically adjusting bandwidth allocation parameters, the system optimizes resource utilization without requiring complex manual reconfiguration, resolving the contradiction between productivity improvement and device complexity.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If manual engineering and provisioning of network connections is performed, then service commitments are met, but time consumption and cost increase significantly

Engineering Contradiction:
Improveservice commitment fulfillmentVSAvoidnetwork reconfiguration time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent implements self-service capabilities where network devices automatically monitor their own bandwidth utilization, detect when reconfiguration is needed, and execute bandwidth adjustments autonomously. This eliminates the need for manual engineering and provisioning, reducing both time consumption and operational costs while maintaining reliable service fulfillment through automated service level monitoring and adjustment.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system incorporates feedback mechanisms that continuously monitor traffic patterns, bandwidth utilization, and service level agreements. Based on this feedback, the system automatically triggers bandwidth reconfiguration when needed, ensuring service commitments are met while minimizing manual intervention and reducing reconfiguration time through automated decision-making loops.

Inventive Principle:
Principle #23Feedback

3Reliability

If network devices are engineered for worst-case traffic volumes, then service commitments are ensured, but bandwidth utilization deteriorates due to under-utilized resources during normal operation

Engineering Contradiction:
Improveservice commitment guaranteeVSAvoidbandwidth utilization rate
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent replaces static worst-case bandwidth engineering with dynamic bandwidth adjustment that adapts to actual traffic conditions. The system maintains service commitments by continuously monitoring traffic patterns and automatically allocating bandwidth up to worst-case levels when needed, while allowing bandwidth to be reduced during normal operation to improve utilization efficiency, thus resolving the contradiction between reliability and productivity.

Inventive Principle:
Principle #15Dynamics

4Productivity

If symmetric bandwidth allocation is used for bidirectional communication, then network simplicity is maintained, but bandwidth efficiency deteriorates due to mismatched upload and download requirements

Engineering Contradiction:
Improvebandwidth efficiencyVSAvoidrouting configuration complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent implements asymmetric bandwidth allocation that recognizes the different bandwidth requirements for upload (request) and download (response) traffic. The system allocates larger bandwidth capacity for download directions where content delivery requires high bandwidth, while allocating smaller bandwidth for upload directions where requests require minimal bandwidth. This asymmetric approach improves overall bandwidth efficiency while automated routing protocols manage the increased configuration complexity.

Inventive Principle:
Principle #4Asymmetry

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This solution enables dynamic and asymmetric bandwidth adjustment, reducing latency and congestion by reallocating bandwidth resources, thereby improving network efficiency and handling high-bandwidth demands effectively.

Implementation Method 1

controls the at least one light re-directing device to direct the additional data signal between the enabled at least one idle optical data port and a remote network device

Methodology Applied
Scientific EffectLight redirection: Reflection

Data Source

PatentUS8285141B1Apparatus, system, and method for asymmetrical and dynamic routing
Publication Date: 2012.10.09 LEVEL 3 COMMUNICATIONS LLC
  • US8285141B1 patent drawing
  • US8285141B1 patent drawing
  • US8285141B1 patent drawing

AI summary

An asymmetrical and dynamic routing system (ADRS) is provided to enable the dynamic adjustment of the bandwidth capacity of two or more network devices exchanging data. The two or more network devices monitor their current bandwidth demand between themselves and others in a network and a first network device can transmit bandwidth request to a second network device when the first network device reaches transmission bandwidth capacity. Each network device is further configured with additional transmit and receive ports and can be selectively enabled in response to a bandwidth request from other network devices. Each network device is further configured to generate control signals that are sent to optical mirrors to re-direct data signals to or from the one or more enabled additional transmit and receive ports.