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Zorluk: OrtaDesigning Network Architecture and Hybrid Connectivity

An energy utility enterprise is connecting its primary on-premises data center to Google Cloud to ingest real-time Smart Grid telemetry. The architecture requires a sustained throughput of 12 Gbps with a 99.99% availability SLA. The telemetry processing workloads are distributed across multiple department-specific VPC networks within the same GCP region. Which network topology and hybrid connectivity design satisfies the performance, availability, and routing requirements?

  1. Provision a Dedicated Interconnect pair with dual 10 Gbps links across two metropolitan availability domains connected to Cloud Routers, and configure a Shared VPC architecture where a host VPC contains the Interconnect attachments and service projects host the telemetry workloads.Cevap
  2. B
    Provision a Dedicated Interconnect connection in a central Hub VPC network, and establish VPC Network Peering between the Hub VPC and each department Spoke VPC network so that on-premises telemetry traffic routes directly through the Hub to the Spokes.
  3. C
    Deploy multiple High Availability (HA) Cloud VPN tunnels across all department VPC networks, configuring Cloud Router BGP sessions with equal-cost multi-path (ECMP) routing to aggregate tunnel bandwidth above 12 Gbps over the public internet.
  4. D
    Establish a single Partner Interconnect connection with 10 Gbps capacity and enable VPC Network Peering in a full-mesh topology across all department VPC networks to route telemetry traffic.

Cevap

Establish a Dedicated Interconnect deployment using redundant VLAN attachments across dual edge domains configured in a Shared VPC host project, attaching department workloads as service projects.
Dedicated Interconnect with redundant links across dual edge availability domains delivers physical circuit capacities exceeding 10 Gbps required to support sustained 12 Gbps traffic while meeting Google's 99.99% availability SLA architecture guidelines. Using a Shared VPC host project allows department service projects to attach directly to subnets with native routing access to the hybrid Interconnect attachments, completely avoiding the routing limitations of non-transitive VPC Network Peering.

Adım Adım Çözüm

1
Evaluate hybrid connectivity bandwidth and SLA requirements
Sustained 12 Gbps throughput exceeds standard Cloud VPN tunnel limits (3 Gbps per tunnel) and single 10 Gbps links. Achieving a 99.99% SLA requires Dedicated Interconnect with redundant attachments across two Google Cloud edge availability domains (metropolitan areas).
Dedicated Interconnect provides enterprise-grade private connectivity supporting 10 Gbps or 100 Gbps physical circuits with SLA guarantees.
2
Evaluate multi-VPC network topology for hybrid route propagation
Shared VPC allows resources in multiple service projects to share subnets from a central host VPC that contains the Cloud Routers and Interconnect attachments.
VPC Network Peering does not support transitive routing, meaning peered Spoke VPCs cannot natively route traffic through a Hub VPC's Interconnect attachment to on-premises systems.

Anahtar Kavram

Designing Dedicated Interconnect with Shared VPC topology to support high-throughput, 99.99% SLA hybrid connectivity without encountering VPC Peering non-transitivity limits.
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Designing Network Architecture and Hybrid Connectivity