# InitialVlanInfo
<a name="API_InitialVlanInfo"></a>

An object that represents an initial VLAN subnet for the Amazon EVS environment. Amazon EVS creates initial VLAN subnets when you first create the environment. Amazon EVS creates the following 10 VLAN subnets: host management VLAN, vMotion VLAN, vSAN VLAN, VTEP VLAN, Edge VTEP VLAN, Management VM VLAN, HCX uplink VLAN, NSX uplink VLAN, expansion VLAN 1, expansion VLAN 2.

**Note**  
For each Amazon EVS VLAN subnet, you must specify a non-overlapping CIDR block. Amazon EVS VLAN subnets have a minimum CIDR block size of /28 and a maximum size of /24.

## Contents
<a name="API_InitialVlanInfo_Contents"></a>

**Note**  
In the following list, the required parameters are described first.

 ** cidr **   <a name="evs-Type-InitialVlanInfo-cidr"></a>
 The CIDR block that you provide to create an Amazon EVS VLAN subnet. Amazon EVS VLAN subnets have a minimum CIDR block size of /28 and a maximum size of /24. Amazon EVS VLAN subnet CIDR blocks must not overlap with other subnets in the VPC.  
Type: String  
Pattern: `((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)/(3[0-2]|[1-2][0-9]|[0-9])`   
Required: Yes

## See Also
<a name="API_InitialVlanInfo_SeeAlso"></a>

For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/evs-2023-07-27/InitialVlanInfo) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/evs-2023-07-27/InitialVlanInfo) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/evs-2023-07-27/InitialVlanInfo)