# TrafficSourceState
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Describes the state of a traffic source.

## Contents
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 ** Identifier **   
The unique identifier of the traffic source.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 511.  
Pattern: `[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*`   
Required: No

 ** State **   
Describes the current state of a traffic source.  
The state values are as follows:  
+  `Adding` - The Auto Scaling instances are being registered with the load balancer or target group.
+  `Added` - All Auto Scaling instances are registered with the load balancer or target group.
+  `InService` - For an Elastic Load Balancing load balancer or target group, at least one Auto Scaling instance passed an `ELB` health check. For VPC Lattice, at least one Auto Scaling instance passed an `VPC_LATTICE` health check.
+  `Removing` - The Auto Scaling instances are being deregistered from the load balancer or target group. If connection draining (deregistration delay) is enabled, Elastic Load Balancing or VPC Lattice waits for in-flight requests to complete before deregistering the instances.
+  `Removed` - All Auto Scaling instances are deregistered from the load balancer or target group.
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 255.  
Pattern: `[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*`   
Required: No

 ** TrafficSource **   
 *This member has been deprecated.*   
This is replaced by `Identifier`.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 511.  
Pattern: `[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*`   
Required: No

 ** Type **   
Provides additional context for the value of `Identifier`.  
The following lists the valid values:  
+  `elb` if `Identifier` is the name of a Classic Load Balancer.
+  `elbv2` if `Identifier` is the ARN of an Application Load Balancer, Gateway Load Balancer, or Network Load Balancer target group.
+  `vpc-lattice` if `Identifier` is the ARN of a VPC Lattice target group.
Required if the identifier is the name of a Classic Load Balancer.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 511.  
Pattern: `[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*`   
Required: No

## See Also
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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/autoscaling-2011-01-01/TrafficSourceState) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/autoscaling-2011-01-01/TrafficSourceState) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/autoscaling-2011-01-01/TrafficSourceState)