About This Architecture

OCI hub-and-spoke network topology using FastConnect with active-passive redundancy for on-premises connectivity. On-premises routers connect via dual FastConnect circuits (primary and standby) to a Dynamic Routing Gateway, which distributes traffic across eight spoke VCNs in a centralized common network architecture. This design provides high availability, centralized security controls via firewall and WAF, and simplified routing management across multiple isolated workload VCNs. Fork this diagram on Diagrams.so to customize spoke count, add additional security layers, or adapt FastConnect failover policies for your enterprise topology. The DRG acts as the single point of aggregation, enabling consistent DNS resolution and load balancing across all spokes.

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How do I design a highly available OCI network connecting on-premises to multiple VCNs using FastConnect?

This diagram shows an OCI hub-and-spoke topology where on-premises routers connect via dual FastConnect circuits (active primary and passive standby) to a Dynamic Routing Gateway, which routes traffic to eight spoke VCNs. The common network hub includes firewall, WAF, load balancer, and DNS for centralized security and traffic management.