Note: You are viewing the documentation for an older major version of the AWS CLI (version 1).

AWS CLI version 2, the latest major version of AWS CLI, is now stable and recommended for general use. To view this page for the AWS CLI version 2, click here. For more information see the AWS CLI version 2 installation instructions and migration guide.

[ aws . elasticache ]



Modifies an existing cache subnet group.

See also: AWS API Documentation

See 'aws help' for descriptions of global parameters.


--cache-subnet-group-name <value>
[--cache-subnet-group-description <value>]
[--subnet-ids <value>]
[--cli-input-json <value>]
[--generate-cli-skeleton <value>]


--cache-subnet-group-name (string)

The name for the cache subnet group. This value is stored as a lowercase string.

Constraints: Must contain no more than 255 alphanumeric characters or hyphens.

Example: mysubnetgroup

--cache-subnet-group-description (string)

A description of the cache subnet group.

--subnet-ids (list)

The EC2 subnet IDs for the cache subnet group.



"string" "string" ...

--cli-input-json (string) Performs service operation based on the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton. If other arguments are provided on the command line, the CLI values will override the JSON-provided values. It is not possible to pass arbitrary binary values using a JSON-provided value as the string will be taken literally.

--generate-cli-skeleton (string) Prints a JSON skeleton to standard output without sending an API request. If provided with no value or the value input, prints a sample input JSON that can be used as an argument for --cli-input-json. If provided with the value output, it validates the command inputs and returns a sample output JSON for that command.

See 'aws help' for descriptions of global parameters.



To use the following examples, you must have the AWS CLI installed and configured. See the Getting started guide in the AWS CLI User Guide for more information.

Unless otherwise stated, all examples have unix-like quotation rules. These examples will need to be adapted to your terminal's quoting rules. See Using quotation marks with strings in the AWS CLI User Guide .

To modify a cache subnet group

The following modify-cache-subnet-group example modifies the specified cache subnet group.

aws elasticache modify-cache-subnet-group \
    --cache-subnet-group-name kxkxk \
    --cache-subnet-group-description "mygroup"


    "CacheSubnetGroup": {
        "CacheSubnetGroupName": "kxkxk",
        "CacheSubnetGroupDescription": "mygroup",
        "VpcId": "vpc-xxxxcdb",
        "Subnets": [
                "SubnetIdentifier": "subnet-xxxxbff",
                "SubnetAvailabilityZone": {
                    "Name": "us-west-2a"

For more information, see Modifying a Subnet Group in the Elasticache User Guide.


CacheSubnetGroup -> (structure)

Represents the output of one of the following operations:

  • CreateCacheSubnetGroup
  • ModifyCacheSubnetGroup

CacheSubnetGroupName -> (string)

The name of the cache subnet group.

CacheSubnetGroupDescription -> (string)

The description of the cache subnet group.

VpcId -> (string)

The Amazon Virtual Private Cloud identifier (VPC ID) of the cache subnet group.

Subnets -> (list)

A list of subnets associated with the cache subnet group.


Represents the subnet associated with a cluster. This parameter refers to subnets defined in Amazon Virtual Private Cloud (Amazon VPC) and used with ElastiCache.

SubnetIdentifier -> (string)

The unique identifier for the subnet.

SubnetAvailabilityZone -> (structure)

The Availability Zone associated with the subnet.

Name -> (string)

The name of the Availability Zone.

SubnetOutpost -> (structure)

The outpost ARN of the subnet.

SubnetOutpostArn -> (string)

The outpost ARN of the subnet.

ARN -> (string)

The ARN (Amazon Resource Name) of the cache subnet group.