Transit VPC Gateway Clusters for Scalable Cloud Network Throughput
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Solution Overview
Problem
Current cloud network architectures face limitations in gateway scalability and system throughput, particularly in virtual private cloud (VPC) environments, leading to communication disruptions and traffic bottlenecks due to restricted private IP-based communication links and management complexities.
Innovation Solution
A load-balanced, full-mesh network architecture is implemented, featuring a transit VPC with multiple gateway pairs and a layered gateway cluster configuration, along with interface logic in the on-premises network using Equal-Cost Multi-Path (ECMP) controlled switching to enhance scalability and throughput.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple private IP-based communication links are established between VPCs to increase system throughput, then data traffic capacity is improved, but the number of communication links is limited by cloud network provider policies
Solution Approach 1:
The system segments the communication architecture by introducing a mesh network layer that divides the direct peer-to-peer communication into multiple intermediate routing paths. This allows traffic to be distributed across multiple logical paths without requiring a proportional increase in direct communication links, thereby working around the cloud provider's link limitations while maintaining high throughput capacity.
Solution Approach 2:
The patent implements a nested communication architecture where a mesh network is embedded within the VPC peering structure. The mesh network provides additional routing layers that are nested within the existing communication framework, enabling multiple communication paths to be created through intermediate nodes rather than requiring direct links between all VPC pairs.
2Ease of operation
If each gateway is configured to support only two private IP-based communication links to reduce management complexity, then ease of operation is improved, but gateway scalability is limited
Solution Approach 1:
The mesh network introduces intermediary routing nodes that act as mediators between gateways. Instead of requiring each gateway to directly manage multiple communication links, the mesh network's intermediate nodes handle the routing complexity, allowing gateways to maintain simple configurations while achieving scalable connectivity through the intermediary mesh layer.
Solution Approach 2:
The patent extracts the routing and link management complexity from the gateway level and relocates it to the mesh network layer. By taking out the complex link management functions from individual gateways and centralizing them in the mesh network's routing infrastructure, the system achieves gateway scalability without increasing operational complexity at the gateway level.
3Productivity
If more data traffic flows through the transit VPC to utilize available communication links, then system throughput is improved, but traffic bottlenecks occur due to limited communication links
Solution Approach 1:
The mesh network implements dynamic routing capabilities that automatically adjust traffic distribution across available paths based on current network conditions. This dynamic adaptation allows the system to optimize data traffic flow through the transit VPC and other nodes, preventing bottlenecks by redistributing traffic in real-time while maintaining reliable and stable connectivity.
Data Source
AI summary
A network architecture including a layered transit virtual private cloud network and interface logic that controls the egress and ingress of messages between the transit VPC and an on-premises network. First, the layered transit VPC includes a first transit gateway cluster communicatively coupled to one or more spoke VPCs for receipt of messages from cloud instances and a second transit gateway cluster communicatively coupled to the on-premises network. The layered transit VPC supports increased scalability for the spoke VPCs. Second, the interface logic is configured to operate in concert with a gateway cluster that controls operability of a router by at least controlling propagation of messages into or from the on-premises network via one or more selected gateways forming the gateway cluster.