BRAS Address Pool Segmentation for Resource Efficiency
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Solution Overview
Problem
In the dual module hot spare mode of BRAS devices, each backup group occupies a separate address pool, leading to address waste and reduced service quality due to unshared resources, as addresses in one pool may be exhausted while others remain unused.
Innovation Solution
A method where a shared address pool is divided into logical segments, allowing BRAS devices to dynamically assign addresses from available segments to users, and release unused segments, enabling flexible management and reducing resource wastage by allowing multiple backup groups to share the same pool.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If each backup group occupies a separate address pool, then routing management is simplified, but address resource utilization deteriorates due to address waste
Solution Approach 1:
The patent merges multiple separate address pools into a single shared address pool that serves multiple backup groups. The BRAS device manages this shared pool and dynamically allocates addresses to different backup groups based on their current needs, thereby improving overall address resource utilization while maintaining routing management through centralized control.
Solution Approach 2:
The patent implements dynamic address allocation within the shared address pool. The BRAS device can flexibly adjust the number of addresses allocated to each backup group based on real-time requirements, allowing the system to adapt to changing conditions and optimize resource utilization rather than maintaining static, fixed allocations.
2Loss of substance
If a shared address pool is implemented, then address resource utilization improves, but routing information management complexity increases
Solution Approach 1:
The patent segments the shared address pool into logical subsets corresponding to different backup groups. The BRAS device maintains routing information organized by backup group, allowing it to efficiently manage addresses within each segment while presenting a unified shared pool to the system. This segmentation approach reduces the complexity of routing information management compared to a completely unstructured shared pool.
Solution Approach 2:
The BRAS device acts as an intermediary between the shared address pool and the backup groups. It manages the routing information and address allocation internally, presenting a simplified interface to the core router while handling the complexity of shared pool management. This intermediary role absorbs the management complexity rather than propagating it to the broader system.
3Ease of manufacture
If addresses are statically allocated to backup groups, then routing configuration is simplified, but service quality deteriorates when addresses are exhausted in one pool
Solution Approach 1:
The patent replaces static address allocation with dynamic allocation from a shared pool. The BRAS device automatically assigns addresses to backup groups based on current availability and demand, ensuring that service quality is maintained even when individual logical pools would be exhausted. This dynamic approach improves reliability while the centralized management keeps routing configuration relatively simple.
Solution Approach 2:
The patent changes the allocation parameter from fixed static assignments to flexible dynamic assignments. The system monitors address usage across all backup groups and redistributes addresses as needed, allowing the allocation parameters to change based on system conditions rather than remaining fixed, thereby preventing exhaustion-related service quality degradation.
Data Source
AI summary
The present invention discloses a method for address management, at least one backup group exists between a broadband remote access server (BRAS) and a backup device, and the method includes: when the BRAS receives an access request of a user, detecting whether there is an idle address in a backup group accessed by the user; if there is no idle address in the backup group accessed by the user, then the BRAS assigning a new logical segment to the backup group, wherein the logical segment contains at least one address; and the BRAS selecting an address from the new logical segment and assigning the address to the user. The present invention also discloses an apparatus and system for address management. The method, apparatus and system of the present invention realize the flexible management of the sharing address pool, and solve the problem of a waste of resources.