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Difficulty: MediumDesigning Network Architecture and Hybrid Connectivity

An energy utility enterprise is designing a hybrid cloud network architecture to connect its primary control centers, remote regional substations, and third-party partner facilities to Google Cloud. Match each hybrid networking requirement to the appropriate Google Cloud service.

  • Direct physical fiber connection delivering 10 Gbps per link to a Google colocation facility, providing high bandwidth and strict 99.99% SLA without using the public internet.Dedicated Interconnect
  • Private, SLA-backed hybrid connectivity for data centers that cannot physically co-locate in a Google facility, established through a supported service provider.Partner Interconnect
  • Encrypted IPsec tunnels operating over public internet connections, providing 99.99% availability for remote branch facilities with bandwidth requirements below 3 Gbps.HA VPN
  • Fully managed dynamic routing component that uses Border Gateway Protocol (BGP) to automatically exchange routes between on-premises networks and VPCs.Cloud Router

Answer

The correct pairings are: 1) Direct 10 Gbps physical fiber connection maps to Dedicated Interconnect; 2) Private connectivity via a service provider maps to Partner Interconnect; 3) Encrypted IPsec tunnels over public internet maps to HA VPN; 4) Managed dynamic BGP routing maps to Cloud Router.
Each hybrid networking requirement maps directly to its corresponding GCP network service based on physical transport mechanism, bandwidth capacity, SLA guarantees, and dynamic routing capabilities.

Step-by-Step Solution

1
Identify high-bandwidth direct physical connectivity requirements.
Map direct physical fiber links in Google colocation facilities to Dedicated Interconnect.
Dedicated Interconnect provides direct physical circuits (10 Gbps or 100 Gbps) without relying on third-party service providers or public internet.
2
Evaluate enterprise sites lacking direct Google colocation presence.
Map third-party service provider hybrid connections to Partner Interconnect.
Partner Interconnect extends GCP VPC connectivity to customer locations through supported service provider networks.
3
Analyze encrypted IPsec connectivity needs over public internet links.
Map dual active-active IPsec tunnels for lower bandwidth branch sites to HA VPN.
HA VPN delivers topology redundancy and an enterprise-grade 99.99% SLA over public internet pathways.
4
Determine the service responsible for automated routing propagation.
Map Border Gateway Protocol (BGP) route exchange to Cloud Router.
Cloud Router manages dynamic BGP routing for Cloud VPN and Cloud Interconnect attachments.

Key Concept

Selecting GCP Hybrid Connectivity Solutions Based on Bandwidth, SLA, Transport, and Routing Requirements
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Topics

Designing Network Architecture and Hybrid Connectivity