Bandwidth Pool Classification for Network Fragmentation
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Solution Overview
Problem
Bandwidth fragmentation in network communications leads to inefficient use of available bandwidth, causing link unavailability and performance issues, especially in networks like GMPLS and SONET/SDH, where manual defragmentation is required, disrupting traffic and not always effective.
Innovation Solution
Classifying bandwidth into long-lived and short-lived pools based on connection duration, with processors establishing and managing these pools to route connections accordingly, avoiding fragmentation by aggregating SNCs with similar characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If bandwidth defragmentation operations are scheduled to maintain network performance, then network performance is improved, but traffic on the lines is disturbed
Solution Approach 1:
The patent segments bandwidth into separate pools (first bandwidth pool and second bandwidth pool) based on connection duration characteristics. Long-lived connections are routed through the first pool while short-lived connections use the second pool, preventing fragmentation across the entire bandwidth and eliminating the need for disruptive defragmentation operations.
Solution Approach 2:
The patent performs preliminary classification of bandwidth pools before connections are established. By pre-defining pools based on expected connection durations and routing connections to appropriate pools from the start, the system prevents fragmentation before it occurs, avoiding the need for later defragmentation that would disrupt traffic.
2Reliability
If manual defragmentation is performed in GMPLS networks, then bandwidth fragmentation is reduced, but connections have to be manually torn down and moved
Solution Approach 1:
The patent implements automatic routing of connections to appropriate bandwidth pools based on their duration characteristics. The system self-manages bandwidth allocation without requiring manual intervention to tear down and move connections, as connections are automatically routed to the appropriate pool (first or second bandwidth pool) based on their expected duration.
3Productivity
If bandwidth is allocated without classification, then allocation is simple, but bandwidth fragmentation occurs reducing effective bandwidth to 40%
Solution Approach 1:
The patent segments total bandwidth into distinct pools (first bandwidth pool for long-lived connections, second bandwidth pool for short-lived connections). This segmentation prevents fragmentation by keeping connections of similar duration characteristics together, ensuring that 100% of bandwidth remains usable while adding manageable classification complexity.
Data Source
AI summary
A method and system for routing a connection on a communication network. A first bandwidth pool is classified as a long lived bandwidth pool and a second bandwidth pool is classified as a short lived bandwidth pool. The long lived bandwidth pool is used to route connections having a duration that are expected to equal or exceed a predetermined time. The short lived bandwidth pool is used to route connections having a duration that are not expected to exceed the predetermined time. A request to route a connection on the communication network is received. At least one characteristic of the connection is determined and is used to determine whether to route the connection on the long lived bandwidth pool or short lived bandwidth pool.