Optical Network Management With Dynamic Channel Reallocation
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Solution Overview
Problem
Existing optical network designs face challenges in accommodating actual optical paths that deviate from demand forecasts, leading to increased design load when scale-out occurs, as they fail to efficiently manage wavelength allocation and transmission distance in transparent optical networks.
Innovation Solution
An optical network management device that dynamically manages optical channels by releasing reserved channels when needed and reallocating them to accommodate new optical paths, using a processor to determine channel availability and allocate reservations based on demand, thereby reducing the need for full redesign.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If wavelengths are allocated to each optical path in the optical network, then optical paths can be established and accommodated, but when scale-out occurs and actual optical paths deviate from demand forecasts, the design load increases significantly
Solution Approach 1:
The patent implements dynamic wavelength allocation by allowing the network management device to reallocate wavelengths when actual optical paths deviate from demand forecasts. The system continuously monitors network conditions and adjusts wavelength assignments dynamically, transforming the static wavelength allocation into a dynamic process that adapts to changing network requirements without increasing design load.
Solution Approach 2:
The patent changes the parameter of wavelength allocation from fixed to flexible. By allowing the network management device to modify wavelength assignments based on actual network conditions rather than predetermined demand forecasts, the system achieves adaptability while maintaining manageable design complexity through automated parameter adjustment.
2Ease of manufacture
If routes and wavelengths are reserved for allocation based on demand planning prior to wavelength opening requests, then optical paths can be allocated based on design results, but there is insufficient flexibility to accommodate actual optical paths that deviate from forecasts
Solution Approach 1:
The patent applies preliminary action by reserving routes and wavelengths based on demand planning before actual optical path establishment. This allows the network to be prepared in advance with allocated resources, making the subsequent allocation process easier while the reservation mechanism provides flexibility to accommodate actual paths that may deviate from forecasts through controlled reallocation.
Solution Approach 2:
The network management device incorporates feedback mechanisms to monitor actual optical path requirements and compare them with demand forecasts. This feedback loop enables the system to adjust wavelength allocations in real-time, maintaining ease of allocation while achieving flexibility to accommodate deviations from predetermined plans.
3Productivity
If a huge number of optical paths are set up and accommodated in the optical network, then network capacity is maximized, but managing wavelength allocation becomes more complex
Solution Approach 1:
The network management device performs self-service by automatically managing wavelength allocations without requiring manual intervention for each optical path. The system autonomously monitors network conditions, identifies optimal wavelength assignments, and executes reallocation decisions, thereby maximizing network capacity while simplifying management complexity through automation.
Solution Approach 2:
The patent replaces manual wavelength allocation mechanisms with automated network management systems. By substituting mechanical manual processes with electronic automation, the system can handle a huge number of optical paths efficiently, maximizing network capacity while reducing the complexity of wavelength allocation management through computational algorithms rather than manual procedures.
Data Source
AI summary
A device manages an optical network, and includes a processor coupled to a memory and configured to acquire a first number, which is the number of first channels used between the unit optical networks, from information including the first number and a second number, which is the number of second channels used in a network of each unit optical network belonging to the optical network, and when addition of another unit optical network to the optical network is requested, before a third number according to the first number of first channels used between each unit optical network and the another unit optical network are reserved in a database managing channels, release some of predetermined channels already reserved when the database does not have enough free channels, and allocate a reservation of the third number of the first channels to free channels after the some of the predetermined channels are released.