Secure High Throughput Hybrid Data Transit

What Dedicated Interconnect with HA VPN and VPC Service Controls is

Dedicated Interconnect with HA VPN (HA VPN over Cloud Interconnect) combines the high-throughput, low-latency private physical transport of Google Cloud Dedicated Interconnect with network-layer IPsec encryption. VPC Service Controls establishes a secure isolation boundary (service perimeter) around Google Cloud managed services such as Cloud Storage and BigQuery to mitigate data exfiltration risks.

How it meets the requirements

• Dedicated high-bandwidth connection: Dedicated Interconnect provides direct physical 10 Gbps or 100 Gbps circuits between the on-premises network and Google's colocation facilities.
• End-to-end IPsec encryption: Encrypted VLAN attachments paired with HA VPN gateways and tunnels ensure all data passing across the private Interconnect circuits is encapsulated with standards-based IPsec encryption.
• Data exfiltration prevention: Placing Google Cloud resources within a VPC Service Controls service perimeter prevents data from being copied or moved to unauthorized buckets, services, or identities outside the perimeter.
• 99.99% SLA: Deploying four Dedicated Interconnect connections with HA VPN across two separate regions in redundant edge availability domains meets Google's architecture requirements for a 99.99% uptime guarantee.

Key advantages and capabilities

• Private and Encrypted Transit: Delivers line-rate encryption over private links without routing traffic across the public internet.
• Perimeter-level Data Security: Context-aware access policies and perimeter boundaries prevent malicious or accidental egress of sensitive records.
• Multi-Region Redundancy: Dual-region dual-zone topology guarantees enterprise-grade fault tolerance.
• Dynamic Route Management: Leverages BGP via Cloud Router for automated failover and topology updates.

Why this is optimal

This approach directly satisfies all bandwidth, high-availability, encryption-in-transit, and perimeter-level data exfiltration requirements simultaneously, whereas standard interconnect or internet VPN solutions fail to meet one or more of these criteria.