Transmission Side Device Redundancy for Box-Type MC-LAG
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In MC-LAG configurations, the existing path protection schemes for box type electrical multiplex transmission devices require twice the path resources compared to chassis type configurations, leading to inefficient utilization of path resources and potential redundancy issues.
Innovation Solution
The proposed solution involves a transmission side transmission device with two transmitters, each equipped with a switch and a selector, which allows for the duplication and switching of main signals between active and standby paths, ensuring efficient resource utilization and redundancy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If path protection is implemented for each facing box type electrical multiplex transmission device in MC-LAG configuration, then reliability is improved, but path resource consumption doubles compared to chassis type configuration
Solution Approach 1:
The patent merges the path protection mechanisms of two facing box type electrical multiplex transmission devices into a shared pool. Instead of each device maintaining separate active and standby path resources, both devices share a common set of path resources, allowing efficient utilization while maintaining redundancy through coordinated switching between devices.
2Device complexity
If traffic distribution method act-standby is used in MC-LAG configuration, then simplicity of configuration is improved, but path resource utilization deteriorates because standby side resources remain idle
Solution Approach 1:
The patent introduces dynamic path resource allocation where the roles of active and standby can switch between devices based on real-time operational conditions. This dynamic approach allows path resources to be actively utilized by whichever device currently needs them, preventing idle resources while maintaining the simplicity of the act-standby configuration model.
Solution Approach 2:
The system enables self-service through automatic failover mechanisms where devices can independently switch between active and standby roles without manual intervention. This allows path resources to be automatically reallocated to where they are needed, improving utilization while maintaining configuration simplicity through automated operation.
Data Source
AI summary
A transmission side transmission device includes: a first transmitter including a first switch; and a second transmitter including a second switch. A main signal is input to either the first transmitter or the second transmitter. The main signal input to the first transmitter is a first main signal and the main signal input to the second transmitter is a second main signal. The first transmitter and the second transmitter are configured such that, when the first transmitter detects a fault in the input first main signal: the second transmitter outputs the input second main signal to the first transmitter; and the first transmitter outputs the input second main signal via a first selector.