Dynamic Bandwidth Reprovisioning in P-OTN Networks
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Solution Overview
Problem
Existing static bandwidth provisioning methods in P-OTN networks result in underutilization of transport paths due to fixed bandwidth allocation, which does not adapt to varying IP traffic demands, leading to unused bandwidth and inefficient resource utilization.
Innovation Solution
A method that dynamically reprovisions bandwidth by measuring incoming IP traffic and adjusting the number of time slots allocated to transport paths based on preset thresholds, using GMPLS protocols to modify ODUflex containers and optimize bandwidth allocation in real-time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If static bandwidth provisioning is used in P-OTN networks, then bandwidth allocation is simple and stable, but bandwidth utilization is low and resources are wasted
Solution Approach 1:
The patent implements dynamic bandwidth provisioning by allowing transport pipes to adjust their bandwidth allocation based on real-time traffic measurements. The system continuously monitors IP traffic demand and automatically modifies the number of ODUflex timeslots allocated to each transport pipe, transitioning from static to dynamic bandwidth management to eliminate wasted capacity while maintaining operational simplicity through automated control
Solution Approach 2:
The patent establishes a feedback mechanism where the system measures actual IP traffic demand on incoming links and uses this information to adjust bandwidth allocation for transport pipes. The measurement results feed into a control algorithm that determines whether to increase or decrease bandwidth allocation, creating a closed-loop system that continuously optimizes bandwidth utilization based on actual network conditions
2Adaptability or versatility
If fixed bandwidth allocation is implemented, then network configuration is simple, but traffic demand variations cannot be accommodated
Solution Approach 1:
The system enables transport pipes to dynamically adjust their bandwidth allocation based on real-time traffic measurements. By continuously monitoring IP traffic demand and automatically modifying the number of ODUflex timeslots allocated to each transport pipe, the system transitions from static to dynamic bandwidth management, allowing adaptability to traffic variations while maintaining operational simplicity through automated control
Solution Approach 2:
The patent changes the bandwidth parameter of transport pipes dynamically based on measured traffic conditions. The system measures IP traffic demand and adjusts the bandwidth allocation parameter (number of timeslots) for each transport pipe accordingly, allowing the network to adapt to varying traffic patterns by modifying key parameters in real-time rather than maintaining fixed allocations
Data Source
AI summary
A method, comprises measuring, by circuitry of a computer system, a first bandwidth of data traffic of a transport path over a time period, the transport path passing through a plurality of nodes and conforming to a protocol using a number of time slots to allocate a second bandwidth to the transport path. The method further includes passing a signal, from the computer system to at least one of the nodes of the transport path, the signal including at least one instruction that when executed by circuitry of the at least one node causes a change to the number of time slots allocated to the transport path.