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Difficulty: MediumDesigning Network Architecture and Hybrid Connectivity

A global energy utility enterprise is designing a hybrid network architecture between its legacy control centers, regional operational offices, and Google Cloud VPC networks. Match each specific architectural requirement to the most appropriate Google Cloud hybrid connectivity or topology solution.

  • Provisioning 50 Gbps dedicated bandwidth from an enterprise colocation facility requiring a guaranteed 99.99% availability SLA.Dual Dedicated Interconnect circuits provisioned across two distinct edge availability domains paired with Cloud Router dynamic routing.
  • Connecting a regional operational facility that lacks direct colocation access with a bandwidth requirement of 2 Gbps.Partner Interconnect provisioned through a supported service provider attached to Cloud Router.
  • Establishing encrypted IPsec tunnel connectivity over the public internet with automated BGP failover for a 99.99% SLA.Dual High Availability (HA) Cloud VPN gateways with active-active IPsec tunnels attached to Cloud Router across regions.
  • Connecting two distinct Google Cloud VPCs directly for low-latency communications while maintaining strict non-transitive routing boundaries.VPC Network Peering configured directly between the two Google Cloud VPC networks.

Answer

Each hybrid connectivity requirement matches its corresponding GCP networking solution based on bandwidth capacity, colocation capabilities, availability SLA targets, and routing transitivity constraints.
Matching each requirement accurately aligns GCP connectivity features with operational constraints: Dedicated Interconnect for colocation facilities with high bandwidth requirements (50 Gbps) and dual edge domains for 99.99% SLA; Partner Interconnect for non-colocated facilities with sub-10 Gbps needs (2 Gbps); HA VPN for encrypted internet transport with 99.99% SLA via active-active tunnels; and VPC Network Peering for non-transitive direct VPC communications.

Step-by-Step Solution

1
Evaluate high-bandwidth colocation requirement (50 Gbps, 99.99% SLA)
Select Dual Dedicated Interconnect across edge availability domains.
Dedicated Interconnect supports high-capacity 10/100 Gbps circuits at supported colocation facilities. Redundancy across two edge availability domains is mandatory to fulfill a 99.99% availability SLA.
2
Evaluate non-colocated branch office requirement (2 Gbps capacity)
Select Partner Interconnect.
Partner Interconnect provides hybrid connectivity through supported service providers for locations lacking direct Google colocation facilities and supports sub-10 Gbps capacities.
3
Evaluate encrypted internet connectivity with 99.99% SLA
Select High Availability (HA) Cloud VPN.
HA VPN guarantees 99.99% uptime using dual active-active IPsec tunnels over the public internet paired with BGP dynamic routing.
4
Evaluate direct VPC-to-VPC private connectivity with non-transitive isolation
Select VPC Network Peering.
VPC Network Peering provides low-latency internal IP routing between VPCs without intermediate gateway hops and is strictly non-transitive.

Key Concept

Selecting hybrid connectivity technologies (Dedicated Interconnect, Partner Interconnect, HA VPN) and VPC Peering based on SLA, bandwidth, and location constraints.
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Topics

Designing Network Architecture and Hybrid Connectivity