All Products
Search

This Product

    Anti-DDoS:ConfigL7UsKeepalive

    Document Center

    Anti-DDoS:ConfigL7UsKeepalive

    Last Updated:Feb 25, 2026

    Configures the back-to-origin persistent connection settings for a domain name.

    Try it now

    Try this API in OpenAPI Explorer, no manual signing needed. Successful calls auto-generate SDK code matching your parameters. Download it with built-in credential security for local usage.

    Test

    RAM authorization

    No authorization for this operation. If you encounter issues with this operation, contact technical support.

    Request parameters

    Parameter

    Type

    Required

    Description

    Example
    Domain

    string

    No

    The domain name of the website.

    Note

    A website forwarding rule must be configured for the domain name. Call DescribeDomains to query all domain names.

    www.aliyun.com
    UpstreamKeepalive

    string

    Yes

    The back-to-origin persistent connection settings. This parameter is a string that consists of a JSON struct. The JSON struct contains the following fields:

    • enabled: Boolean | Required | Specifies whether to enable back-to-origin persistent connections.

    • keepalive_requests: Integer | Required | The number of requests that can be reused in a persistent connection.

    • keepalive_timeout: Integer | Required | The idle timeout period of a persistent connection.

    {"enabled": true, "keepalive_requests": 1000,"keepalive_timeout": 30}
    DownstreamKeepalive

    string

    No

    The idle timeout period for the persistent connection between the client and Anti-DDoS.

    60

    Response elements

    Element

    Type

    Description

    Example

    object

    Schema of Response

    RequestId

    string

    The ID of the request. This is a unique identifier that Alibaba Cloud generates for the request. You can use this ID to troubleshoot and locate issues.

    6D48AED0-41DB-5D9B-B484-3B6AAD312AW2

    Examples

    Success response

    JSON format

    {
  "RequestId": "6D48AED0-41DB-5D9B-B484-3B6AAD312AW2"
}

    Error codes

    See Error Codes for a complete list.

    Release notes

    See Release Notes for a complete list.