ER Instances Deployed in Multiple AZs
Rule Details
| Parameter | Description |
|---|---|
| Rule Name | er-multiple-az-check |
| Identifier | ER Instances Deployed in Multiple AZs |
| Description | If an enterprise router is not deployed in multiple AZs, it is non-compliant. |
| Tag | er |
| Trigger Type | Configuration change |
| Filter Type | er.instances |
| Rule Parameters | None |
Application Scenarios
We recommend you to select two or more AZs. The enterprise router will be deployed in both AZs that work in active-active mode, ensuring reliability and disaster recovery.
If the enterprise router is deployed in multiple AZs, traffic in an AZ will be preferentially transmitted to the enterprise router in the same AZ to reduce latency.
Solution
When creating an enterprise router, select multiple AZs.
Rule Logic
- If an enterprise router is not deployed in multiple AZs, the enterprise router is non-compliant.
- If an enterprise router is deployed in multiple AZs, the enterprise router is compliant.
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