ActiveFlowLog - Cloud Enterprise Network - Alibaba Cloud Documentation Center

Enables a flow log. After the flow log is enabled, the system collects traffic information about a specified resource.

Operation description

After you create a flow log, it is enabled by default. You can call this operation to enable a disabled flow log.
ActiveFlowLog is an asynchronous operation. After you send a request, the system returns a request ID and runs the task in the background. You can call the DescribeFlowlogs operation to query the status of a flow log.
- If a flow log is in the Modifying state, the flow log is being enabled. In this case, you can query the flow log but cannot perform other operations.
- If a flow log is in the Active state, the flow log is enabled.

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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 support 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

cen:ActiveFlowLog

update

*Flowlog

acs:cbn:{#regionId}:{#accountId}:flowlog/{#flowlogId}

None

Request parameters

Parameter	Type	Required	Description	Example
ClientToken	string	No	The client token that is used to ensure the idempotence of the request. You can use the client to generate the value, but you must make sure that the value is unique among different requests. The client token can contain only ASCII characters. Note If you do not set this parameter, ClientToken is set to the value of RequestId. The value of RequestId may be different for each request.	123e4567-e89b-12d3-a456-42665544****
RegionId	string	Yes	The ID of the region where the flow log is deployed. You can call the DescribeChildInstanceRegions operation to query the most recent region list.	cn-hangzhou
FlowLogId	string	Yes	The ID of the flow log.	flowlog-m5evbtbpt****
CenId	string	No	The ID of the Cloud Enterprise Network (CEN) instance.	cen-7qthudw0ll6jmc****

Response parameters

Parameter	Type	Description	Example
	object	The response.
Success	string	Indicates whether the call is successful. true: yes false: no	true
RequestId	string	The ID of the request.	F7DDDC17-FA06-4AC2-8F35-59D2470FCFC1

Examples

Success response

JSON format

{
  "Success": "true",
  "RequestId": "F7DDDC17-FA06-4AC2-8F35-59D2470FCFC1"
}

Error codes

HTTP status code	Error code	Error message	Description
400	ProjectOrLogstoreNotExist	The specified project or logstore does not exist.	The error message returned because the specified project or Logstore does not exist.
400	SourceProjectNotExist	The Source Project or logstore does not exist.	The error message returned because the specified source project or Logstore does not exist.
400	OperationUnsupported.action	This action is not support.	The error message returned because this operation is not supported in the specified region.
400	RuleExist	The rule has already existed.	The rule already exists.
400	QuotaExceeded.FlowlogCount	This user has reached the maximum instance number of flowlog.	The error message returned because the number of flow logs has reached the upper limit.
400	InvalidFlowlogId.exist	This cenId already has flowlog instance existed.	The error message returned because the specified CEN instance is already associated with a flow log.
400	InvalidFlowlogId.NotFound	The specified flowlog id does not exist or does not match the cen Id.	The error message returned because the specified flow log does not exist.
400	IncorrectStatus.flowlog	Invalid flowlog status.	The error message returned because the status of the flow log does not support this operation. Try again later.
400	IncorrectStatus.TrFlowlog	Flowlog status for specified TransitRouter is invalid for this operation.	Flowlog status for specified TransitRouter is invalid for this operation.
400	InvalidParameter	Invalid parameter.	The error message returned because the parameter is set to an invalid value.
400	Unauthorized	The AccessKeyId is unauthorized.	The error message returned because you do not have the permissions to perform this operation.
400	InvalidParameter.FlowLogId	The specified parameter FlowLogId is invalid.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.