Application-Load-Aware Network Routing Across Regions
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Solution Overview
Problem
Traditional networks lack knowledge of application health, limiting their ability to proactively optimize connectivity and respond effectively to application load issues, often only reacting after problems arise.
Innovation Solution
Integrate a network, such as an SD-WAN, with an application orchestration system to enable dynamic routing decisions based on first-hand application health information, using APIs, service registries, or data plane packets to derive routing policies, and allocate traffic to resources based on current load and geographic distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional probing techniques are used to infer application health, then the network can detect application load issues, but the network cannot proactively optimize connectivity and is limited in the types of optimizations it can perform
Solution Approach 1:
The patent implements a feedback mechanism where the network controller continuously receives application health information from the application orchestration system and uses this feedback to dynamically adjust routing decisions. This closed-loop feedback enables the network to proactively respond to application load conditions and perform versatile optimizations beyond simple connectivity detection.
Solution Approach 2:
The patent introduces an intermediary integration layer between the network controller and the application orchestration system, using APIs and service registries as mediators. This intermediary enables the network to access detailed application health information without direct coupling, allowing for sophisticated routing optimizations while maintaining system independence.
2Device complexity
If the network reacts to problems after they arise, then it can maintain simple routing logic, but it cannot proactively mitigate problems before they affect service quality
Solution Approach 1:
The patent implements preliminary action by having the network controller proactively query the application orchestration system for health information before routing traffic. This allows the network to anticipate potential problems and adjust routing decisions in advance, mitigating issues before they impact service quality while maintaining relatively simple routing logic through automated policy-based decisions.
3Speed
If traffic is routed without considering application load, then routing decisions are simple and fast, but resources may become overloaded and network performance deteriorates
Solution Approach 1:
The patent implements self-service by having the application orchestration system automatically provide health information to the network controller through integrated APIs. This enables the routing system to make informed decisions about resource utilization without manual intervention, balancing the need for fast automated routing with reliable resource management through the application's own health metrics.
Data Source
AI summary
Techniques for dynamic routing based on application load are described herein. The techniques may include receiving load information associated with resources of an application orchestration system that are allocated to host an application, the resources associated with different geographical regions. Based at least in part on the load information, a network controller may determine that first resources of the application orchestration system are less constrained than second resources of the application orchestration system, the first resources associated with a first geographical region and the second resources associated with a second geographical region. Based at least in part on the first resources being less constrained than the second resources, application traffic may be routed through the network to the application hosted by the first resources in the first geographical region.