Gateway-Based Path Selection for SaaS Access Quality
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Solution Overview
Problem
Enterprises accessing SaaS applications through the internet experience poor quality of service due to issues like packet loss, delay, and jitter, leading to a suboptimal user experience.
Innovation Solution
A routing method and apparatus that enable user site egress devices to select optimal paths for accessing target objects based on performance metrics advertised by gateways, using identification information and path indices to improve service quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If user site egress device directly accesses target object through internet, then access simplicity is maintained, but quality of service deteriorates due to packet loss, delay, and jitter
Solution Approach 1:
The patent introduces gateways as intermediary devices between user site egress devices and target objects. These gateways advertise path performance metrics and enable intelligent path selection, thereby improving quality of service while maintaining relative access simplicity through automated mediation.
Solution Approach 2:
The patent implements preliminary action by having gateways pre-advertise path performance metrics (packet loss, delay, jitter) before actual access occurs. This allows user site egress devices to pre-select optimal paths based on advertised metrics, avoiding quality issues during actual access.
2Reliability
If multiple path options are provided with performance metrics, then quality of service improves through better path selection, but information processing complexity increases
Solution Approach 1:
The patent enables self-service by allowing user site egress devices to autonomously select optimal paths based on advertised performance metrics. The devices independently evaluate metrics such as packet loss, delay, and jitter to make routing decisions without requiring complex centralized control.
Solution Approach 2:
The patent implements feedback mechanisms where gateways continuously advertise path performance metrics to user site egress devices. This feedback loop enables dynamic path selection based on current network conditions, improving access reliability while keeping routing decisions relatively simple through standardized metric comparison.
Data Source
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AI summary
This application discloses a routing method, including: A first user site egress device receives identification information of a target object, a first path index, and a first path performance metrics that are advertised by a first gateway, where the first path index identifies a first path for the first gateway to access the target object, and the first path performance metrics indicates performance of the first path. After receiving the identification information of the target object, the first path index, and the first path performance metrics, the first user site egress device selects, based on the first path performance metrics, a target path for accessing the target object. It can be learned that, according to the solutions, the first user site egress device may select, based on the performance of the first path for the first gateway to access the target object, the target path for accessing the target object, so that the selected target path can provide good quality of service. Good quality of service can be obtained when the target object is accessed through the target path, thereby improving access experience of accessing the target object.