Traffic Flow Management for Network Flooding Reliability
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Solution Overview
Problem
In network communication systems, especially those using Ethernet, there is a demand for uninterrupted redundancy switching to manage communication resources effectively during failures or flooding scenarios, where existing methods often lead to unnecessary resource allocation and increased device costs, as well as prolonged waiting times for new communications.
Innovation Solution
An information processing device with an identification unit, recording unit, determination unit, and extension unit is employed to manage traffic flow information, identifying associated traffic flows, determining necessary resource allocation, and extending scheduled release times based on recorded information to optimize resource usage and reduce waiting times during flooding events.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the MAC address learning information of the network switch is flushed and flooding occurs, the uninterruptible apparatus receives data frames addressed to other devices, requiring allocation of sequence numbers for multiple traffic flows, then communication reliability is maintained during flooding, but device cost increases due to securing more communication resources than necessary
Solution Approach 1:
The patent applies preliminary action by pre-allocating a pool of sequence numbers that can be reused after a predetermined period. This allows the uninterruptible apparatus to maintain communication reliability during flooding events while limiting the total number of sequence numbers needed, thereby controlling device cost. The predetermined period ensures that sequence numbers are released and can be reused, preventing unbounded resource accumulation.
Solution Approach 2:
The patent changes the parameter of sequence number validity by introducing a time-based expiration mechanism. Sequence numbers are allocated with a predetermined lifespan, after which they can be reused. This dynamic parameter management allows the system to adapt to flooding conditions while maintaining bounded resource usage, resolving the contradiction between reliability and device cost.
2Reliability
If the aging time of communication resources is increased to secure resources during flooding, then communication resources are continuously available, but resources cannot be allocated to new communication and waiting time increases after flooding ends
Solution Approach 1:
The patent implements periodic action by establishing a predetermined period for sequence number validity. Sequence numbers are automatically released after this period expires, creating a regular cycle of resource allocation and release. This periodic mechanism ensures resources remain available during flooding while preventing indefinite occupation, thus reducing waiting time for new communications after flooding subsides.
Solution Approach 2:
The patent dynamically adjusts the aging time parameter based on the predetermined period. By setting a finite, reusable lifecycle for sequence numbers, the system balances continuous availability during flooding with timely release for new communications. This parameter control resolves the contradiction between maintaining resource availability and enabling new communication allocation.
3Reliability
If sequence numbers are allocated for all possible traffic flows during flooding, then no communication skipping occurs, but the number of required sequence numbers increases beyond original communication needs
Solution Approach 1:
The patent applies discarding and recovering by releasing sequence numbers after a predetermined period of validity. This allows the system to discard old sequence numbers that are no longer needed and recover them for reuse. During flooding, this mechanism ensures frame order integrity for active flows while preventing the accumulation of excessive sequence numbers, thus resolving the contradiction between reliability and quantity of resources.
Solution Approach 2:
The patent introduces a time-based parameter change for sequence number validity. By setting a predetermined expiration period, the system dynamically manages the quantity of active sequence numbers. This parameter control ensures that enough sequence numbers are available to prevent communication skipping during flooding, while simultaneously limiting the total number required, thus resolving the contradiction between frame order integrity and resource quantity.
Data Source
AI summary
An information processing device in a communication apparatus performs a management process of traffic flow management information for transfer of data including a plurality of frames from a transmission source terminal to a transmission destination terminal. Where new traffic flow management information of a traffic flow associated with a data frame identified by an identification unit on the basis of identification information included in the received data frame is recorded in the communication apparatus, a recording unit determines whether the number of pieces of traffic flow management information already recorded is equal to or more than a threshold value, and calculates and records a scheduled release time of the traffic flow management information according to a determination result.