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Cloud Computing · Intermediate

Cloud VPN

Google Cloud service connecting on-premises or other cloud networks to a VPC through IPsec tunnels over the internet.

Definition

HA VPN uses a gateway with two interfaces and two external IPs, requiring dynamic BGP routing through Cloud Router, and provides a 99.99 percent SLA when configured with redundant tunnels. Classic VPN supports static routing but is largely deprecated. Each tunnel supports limited bandwidth, so multiple tunnels scale throughput.

Example

An HA VPN gateway with four tunnels connects a VPC to two on-premises routers using BGP.

Exam tip

HA VPN plus Cloud Router (BGP) is the expected answer for resilient encrypted connectivity to Google Cloud.

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