Multi-cloud connects infrastructure across different providers. You might use AWS for compute, GCP for ML, and Azure for enterprise services.
Connection options:
- VPN tunnels over internet
- Direct connections at colocation
- Third-party interconnect services
Challenges:
- Different networking models per provider
- IP management across environments
- Inconsistent security controls
- Data transfer costs
When it makes sense:
- Best-of-breed services
- Avoiding vendor lock-in
- Regulatory requirements
Multi-cloud adds operational complexity. Ensure benefits justify the overhead.