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Zorluk: ZorDesigning Network Architecture and Hybrid Connectivity

A global online gaming platform is designing hybrid network connectivity between its on-premises data center and workloads deployed across multiple Google Cloud regions (`us-central1` and `europe-west1`). The hybrid connection requires a SLA of 99.99% availability and must support a baseline bandwidth of 8 Gbps with sustained peaks up to 15 Gbps. Furthermore, on-premises networks must automatically discover routes to subnets in all GCP regions without manual static route management, while avoiding un-supported transitive routing reliance on VPC Network Peering for third-party service VPCs. Which TWO architectural design choices should the lead cloud architect implement to satisfy these technical requirements? (Select TWO.)

  1. Provision four Dedicated Interconnect connections across two distinct metro locations and two separate Edge Availability Domains (EADs) per metro location, attaching them to Cloud Routers in each region.Cevap
  2. B
    Deploy multiple High Availability (HA) Cloud VPN gateways with active-active IPsec tunnels across both target regions and enable ECMP to aggregate bandwidth above 10 Gbps.
  3. Configure Dynamic Routing mode to Global on the Virtual Private Cloud (VPC) network hosting the Cloud Routers.Cevap
  4. D
    Establish VPC Network Peering between the hybrid VPC and third-party partner VPCs to transit on-premises traffic directly into the partner networks.

Cevap

The architect should provision four Dedicated Interconnect connections across two distinct metro locations and edge availability domains, and configure the VPC dynamic routing mode to Global.
Provisioning four Dedicated Interconnect circuits across two metro locations and two EADs per metro satisfies the GCP architecture pattern for 99.99% availability while supplying 10 Gbps/100 Gbps dedicated links capable of handling the 15 Gbps peak. Configuring Global Dynamic Routing enables Cloud Routers in any region to dynamically exchange BGP routes with on-premises routers and make all regional subnets reachable.

Adım Adım Çözüm

1
Analyze bandwidth and SLA constraints for hybrid connectivity.
The requirement specifies 15 Gbps peak bandwidth and a 99.99% SLA.
Cloud VPN maxes out at 3 Gbps per tunnel over public internet. Dedicated Interconnect is required for bandwidth exceeding 3 Gbps and for enterprise SLAs.
2
Determine topology requirements for 99.99% HA SLA.
GCP topology guidelines for 99.99% availability require 4 Interconnect attachments across 2 metros and 2 Edge Availability Domains (EADs) per metro.
This redundant design ensures protection against single facility, metro, or hardware failures.
3
Configure dynamic routing for multi-region accessibility.
Set VPC Dynamic Routing to Global mode.
Regional dynamic routing only advertises routes to subnets in the same region as the Cloud Router. Global dynamic routing enables Cloud Routers to propagate BGP learned routes across all GCP regions.

Anahtar Kavram

99.99% Availability Dedicated Interconnect Architecture & Global Dynamic Routing
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Konular

Designing Network Architecture and Hybrid Connectivity