All Products
Search
Document Center

Server Load Balancer:DescribeVServerGroupAttribute

Last Updated:Mar 04, 2026

Queries the detailed information about a vServer group.

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

The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

  • Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.

  • API: The API that you can call to perform the action.

  • Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.

  • Resource type: The type of the resource that supports authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.

    • For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.

    • For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.

  • Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.

  • Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

Action

Access level

Resource type

Condition key

Dependent action

slb:DescribeVServerGroupAttribute

get

*loadbalancer

acs:slb:{#regionId}:{#accountId}:loadbalancer/{#loadbalancerId}

  • slb:tag
  • slb:tag
  • slb:tag
  • slb:tag
None

Request parameters

Parameter

Type

Required

Description

Example

RegionId

string

Yes

The region ID of the Classic Load Balancer (CLB) instance.

cn-hangzhou

VServerGroupId

string

Yes

The ID of the vServer group.

rsp-cige6****

Response elements

Element

Type

Description

Example

object

VServerGroupId

string

The ID of the vServer group.

rsp-cige6****

VServerGroupName

string

The name of the vServer group.

Group1

RequestId

string

The request ID.

9DEC9C28-AB05-4DDF-9A78-6B******

LoadBalancerId

string

The ID of the CLB instance.

lb-jfakd****

BackendServers

object

BackendServer

array<object>

The backend servers.

object

Type

string

The type of backend server. Valid values:

  • ecs: ECS instance

  • eni: ENI

  • eci: elastic container instance

ecs

Weight

integer

The weight of the backend server.

100

Description

string

The description of the server group.

Note

This parameter is not returned if the Description parameter is not specified in the request.

The description of the server group.

ServerIp

string

The IP address of the backend server.

192.XX.XX.11

Port

integer

The port that is used by the backend server.

90

ServerId

string

The ID of the backend server.

vm-233

CreateTime

string

The time when the CLB instance was created. The time follows the YYYY-MM-DDThh:mm:ssZ format.

2022-08-31T02:49:05Z

Tags

object

Tag

array<object>

The tags of the backend server.

object

The tags.

TagKey

string

The tag key. Valid values of N: 1 to 20. The tag key cannot be an empty string.

The tag key can be up to 64 characters in length, and cannot contain http:// or https://. The tag key cannot start with aliyun or acs:.

TestKey

TagValue

string

The tag value. Valid values of N: 1 to 20. The tag value can be an empty string.

The tag value can be up to 128 characters in length, and cannot contain http:// or https://. The tag value cannot start with acs: or aliyun.

TestValue

Examples

Success response

JSON format

{
  "VServerGroupId": "rsp-cige6****",
  "VServerGroupName": "Group1",
  "RequestId": "9DEC9C28-AB05-4DDF-9A78-6B******",
  "LoadBalancerId": "lb-jfakd****",
  "BackendServers": {
    "BackendServer": [
      {
        "Type": "ecs",
        "Weight": 100,
        "Description": "The description of the server group.",
        "ServerIp": "192.XX.XX.11",
        "Port": 90,
        "ServerId": "vm-233"
      }
    ]
  },
  "CreateTime": "2022-08-31T02:49:05Z",
  "Tags": {
    "Tag": [
      {
        "TagKey": "TestKey",
        "TagValue": "TestValue"
      }
    ]
  }
}

Error codes

HTTP status code

Error code

Error message

Description

400 LocationServiceTimeout Location service connection timeout. Please try again later.
403 UnauthorizedRegion The specified region of is not authorized. The specified region of is not authorized.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.