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Cloud Config:Configure multiple zones for a VPC connection to a transit router

Last Updated:Oct 14, 2025

This rule checks whether two vSwitches distributed in different zones are configured for the VPC connected to the transit router to ensure high availability of cross-zone services. If this configuration exists, the evaluation result is considered compliant.

Scenarios

When an enterprise configures two vSwitches in different zones for a VPC connection to a transit router, it ensures high availability of network connectivity and business continuity if a single zone fails. In this case, the evaluation result is considered compliant. The default risk level is high.

Risk level

Default risk level: high.

You can change the risk level as needed.

Detection logic

This rule checks whether two vSwitches distributed in different zones are configured for the VPC connected to the transit router to ensure high availability of cross-zone services. If this configuration exists, the evaluation result is considered compliant.

Rule details

Parameter

Description

Rule name

Configure multiple zones for a VPC connection to a transit router

Rule identifier

transit-router-vpc-attachment-multi-zone

Automatic remediation

Not supported

Rule trigger

Configuration change

Supported resource types

ACS::CEN::TransitRouterVpcAttachment

Input parameters

None

Remediation guidance

For more information, see Create a VPC connection.