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4 changes: 2 additions & 2 deletions doc_source/configuration-vpc.md
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Expand Up @@ -26,7 +26,7 @@ Multiple functions can share a network interface, if the functions share the sam

If your functions aren't active for a long period of time, Lambda reclaims its network interfaces, and the functions become `Idle`\. To reactivate an idle function, invoke it\. This invocation fails, and the function enters a `Pending` state again until a network interface is available\.

If you update your function to access a different VPC, it terminates connectivity from the Hyperplane ENI to the previous VPC\. The process to update the connectivity to a new VPC can take several minutes\. During this time, Lambda connects funtion invocations to the previous VPC\. After the update is complete, new invocations start using the the new VPC and the Lambda function is no longer connected to the older VPC\.
If you update your function to access a different VPC, it terminates connectivity from the Hyperplane ENI to the previous VPC\. The process to update the connectivity to a new VPC can take several minutes\. During this time, Lambda connects function invocations to the previous VPC\. After the update is complete, new invocations start using the the new VPC and the Lambda function is no longer connected to the older VPC\.

For short\-lived operations, such as DynamoDB queries, the latency overhead of setting up a TCP connection might be greater than the operation itself\. To ensure connection reuse for short\-lived/infrequently invoked functions, we recommend that you use *TCP keep\-alive* for connections that were created during your function initialization, to avoid creating new connections for subsequent invokes\. For more information on reusing connections using keep\-alive, refer to [Lambda documentation on reusing connections](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/node-reusing-connections.html)[\.](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/node-reusing-connections.html)

Expand Down Expand Up @@ -310,4 +310,4 @@ You can use the following sample AWS CloudFormation templates to create VPC conf
+ [vpc\-private\.yaml](https://github.com/awsdocs/aws-lambda-developer-guide/blob/main/templates/vpc-private.yaml) – A VPC with two private subnets and VPC endpoints for Amazon Simple Storage Service \(Amazon S3\) and Amazon DynamoDB\. Use this template to create a VPC for functions that don't need internet access\. This configuration supports use of Amazon S3 and DynamoDB with the AWS SDKs, and access to database resources in the same VPC over a local network connection\.
+ [vpc\-privatepublic\.yaml](https://github.com/awsdocs/aws-lambda-developer-guide/blob/main/templates/vpc-privatepublic.yaml) – A VPC with two private subnets, VPC endpoints, a public subnet with a NAT gateway, and an internet gateway\. Internet\-bound traffic from functions in the private subnets is routed to the NAT gateway using a route table\.

To create a VPC using a template, on the AWS CloudFormation console [Stacks page](https://console.aws.amazon.com/cloudformation/home#/stacks), choose **Create stack**, and then follow the instructions in the **Create stack** wizard\.
To create a VPC using a template, on the AWS CloudFormation console [Stacks page](https://console.aws.amazon.com/cloudformation/home#/stacks), choose **Create stack**, and then follow the instructions in the **Create stack** wizard\.