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# AWS::Comprehend::EntityRecognizer VpcConfig
<a name="aws-properties-comprehend-entityrecognizer-vpcconfig"></a>

 Configuration parameters for an optional private Virtual Private Cloud (VPC) containing the resources you are using for the job. For more information, see [Amazon VPC](https://docs.aws.amazon.com/vpc/latest/userguide/what-is-amazon-vpc.html). 

## Syntax
<a name="aws-properties-comprehend-entityrecognizer-vpcconfig-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-comprehend-entityrecognizer-vpcconfig-syntax.json"></a>

```
{
  "[SecurityGroupIds](#cfn-comprehend-entityrecognizer-vpcconfig-securitygroupids)" : {{[ String, ... ]}},
  "[Subnets](#cfn-comprehend-entityrecognizer-vpcconfig-subnets)" : {{[ String, ... ]}}
}
```

### YAML
<a name="aws-properties-comprehend-entityrecognizer-vpcconfig-syntax.yaml"></a>

```
  [SecurityGroupIds](#cfn-comprehend-entityrecognizer-vpcconfig-securitygroupids): {{
    - String}}
  [Subnets](#cfn-comprehend-entityrecognizer-vpcconfig-subnets): {{
    - String}}
```

## Properties
<a name="aws-properties-comprehend-entityrecognizer-vpcconfig-properties"></a>

`SecurityGroupIds`  <a name="cfn-comprehend-entityrecognizer-vpcconfig-securitygroupids"></a>
The ID number for a security group on an instance of your private VPC. Security groups on your VPC function serve as a virtual firewall to control inbound and outbound traffic and provides security for the resources that you’ll be accessing on the VPC. This ID number is preceded by "sg-", for instance: "sg-03b388029b0a285ea". For more information, see [Security Groups for your VPC](https://docs.aws.amazon.com/vpc/latest/userguide/VPC_SecurityGroups.html).   
*Required*: Yes  
*Type*: Array of String  
*Minimum*: `1 | 1`  
*Maximum*: `32 | 5`  
*Update requires*: [Replacement](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement)

`Subnets`  <a name="cfn-comprehend-entityrecognizer-vpcconfig-subnets"></a>
The ID for each subnet being used in your private VPC. This subnet is a subset of the a range of IPv4 addresses used by the VPC and is specific to a given availability zone in the VPC’s Region. This ID number is preceded by "subnet-", for instance: "subnet-04ccf456919e69055". For more information, see [VPCs and Subnets](https://docs.aws.amazon.com/vpc/latest/userguide/VPC_Subnets.html).   
We recommend that you specify subnets in at least two Availability Zones. Amazon Comprehend runs the job in one of the subnets that you provide. If all of your subnets are in a single Availability Zone, the job can't be placed in another Availability Zone when that Availability Zone is impaired, and the job can fail. Each subnet must also have enough free IP addresses for the job's instances.  
*Required*: Yes  
*Type*: Array of String  
*Minimum*: `1 | 1`  
*Maximum*: `32 | 16`  
*Update requires*: [Replacement](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement)