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Cloud Enterprise Network:CreateTrafficMarkingPolicy

最終更新日:Jun 06, 2025

Creates a traffic marking policy. A traffic marking policy captures network traffic based on traffic classification rules and marks the traffic with the Differentiated Services Code Point (DSCP) values that you specify.

Operation description

  • Only Enterprise Edition transit routers support traffic marking policies.

  • CreateTrafficMarkingPolicy is an asynchronous operation. After you send a request, the system returns a traffic marking policy ID and runs the task in the background. You can call the ListTrafficMarkingPolicies operation to query the status of a traffic marking policy.

    • If a traffic marking policy is in the Creating state, the traffic marking policy is being created. You can query the traffic marking policy but cannot perform other operations.

    • If a traffic marking policy is in the Active state, the traffic marking policy is created.

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RAM authorization

The table below describes the authorization required to call this API. You can define it in a 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 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. For more information, see Common condition keys.

  • 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:CreateTrafficMarkingPolicy

create

*All Resource

*

None 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 it is unique among all 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 for each API request may be different.

123e4567-e89b-12d3-a456-426****

DryRun

boolean

No

Specifies whether to perform a dry run. Valid values:

  • true: performs a dry run. The system checks the required parameters, request format, and limits. If the request fails the dry run, an error message is returned. If the request passes the dry run, the DryRunOperation error code is returned.

  • false (default): performs a dry run and sends the request.

false

TransitRouterId

string

Yes

The ID of the transit router.

tr-8vbuqeo5h5pu3m01d****

TrafficMarkingPolicyName

string

No

The name of the traffic marking policy.

The name can be empty or 1 to 128 characters in length, and cannot start with http:// or https://.

nametest

TrafficMarkingPolicyDescription

string

No

The description of the traffic marking policy.

This parameter is optional. If you enter a description, it must be 1 to 256 characters in length, and cannot start with http:// or https://.

desctest

Priority

integer

Yes

The priority value of the traffic marking policy. Valid values: 1 to 100.

The priority value of each traffic marking policy on a transit router must be unique. A smaller value specifies a higher priority.

5

MarkingDscp

integer

Yes

The differentiated services code point (DSCP) value to be added to packets that match the traffic classification rule. Valid values: 0 to 63.

The DSCP value of each traffic marking policy on a transit router must be unique.

5

TrafficMatchRules

array

No

The traffic classification rules in the traffic marking policy.

Data packets that meet the traffic classification rule is assigned the DSCP value of quality of service (QoS) policy.

You can create up to 50 traffic classification rules.

object

No

The information about the traffic classification rule.

MatchDscp

integer

No

The Differentiated Service Code Point (DSCP) value that is used to match packets. Valid values: 0 to 63.

Packets that carry the specified DSCP value meet the traffic classification rule. If you do not specify a DSCP value, all packets meet the traffic classification rule.

Note

The DSCP value that you specify for this parameter is the DSCP value that packets carry before they are transmitted over the inter-region connection.

You can create up to 50 traffic classification rules in each call. You can specify a DSCP value for each traffic classification rule.

6

DstCidr

string

No

The destination CIDR block of packets. IPv4 and IPv6 addresses are supported.

Packets whose destination IP addresses fall into the specified destination CIDR block meet the traffic classification rule. If you do not specify a destination CIDR block, all packets meet the traffic classification rule.

You can create up to 50 traffic classification rules in each call You can specify a destination CIDR block for each traffic classification rule.

10.10.10.0/24

TrafficMatchRuleDescription

string

No

The description of the traffic classification rule.

You can create up to 50 traffic classification rules in each call. You can specify a description for each traffic classification rule.

This parameter is optional. If you enter a description, it must be 1 to 256 characters in length and cannot start with http:// or https://.

desctest

Protocol

string

No

The protocol that is used to match packets.

Traffic classification rules support the following protocols: HTTP, HTTPS, TCP, UDP, SSH, and Telnet. For more information, log on to the CEN console.

Some protocols use a fixed port. Click to view the protocols and ports.

  • If the protocol is ICMP, the destination port must be -1.

  • If the protocol is GRE, the destination port must be 1.

  • If the protocol is SSH, the destination port must be 22.

  • If the protocol is Telnet, the destination port must be 23.

  • If the protocol is HTTP, the destination port must be 80.

  • If the protocol is HTTPS, the destination port must be 443.

  • If the protocol is MS SQL, the destination port must be 1443.

  • If the protocol is Oracle, the destination port must be 1521.

  • If the protocol is Mysql, the destination port must be 3306.

  • If the protocol is RDP, the destination port must be 3389.

  • If the protocol is Postgre SQL, the destination port must be 5432.

  • If the protocol is Redis, the destination port must be 6379.

You can create up to 50 traffic classification rules in each call. You can specify a protocol for each traffic classification rule.

HTTP

DstPortRange

array

No

The destination port range that is used to match packets. Valid values: -1 and 1 to 65535.

Packets whose destination ports fall within the destination port range meet the traffic classification rule. If you do not specify destination port range, all packets meet the traffic classification rule.

You can enter up to two port numbers. Take note of the following rules:

  • If you enter only one port number, such as 1, packets whose destination port is 1 meet the traffic classification rule. A value of -1 specifies all destination ports.

  • If you enter two port numbers, such as 1 and 200, packets whose destination ports fall into 1 and 200 meet the traffic classification rule.

  • If you enter two port numbers and one of them is -1, the other port number must also be -1. In this case, all packets meet the traffic classification rule.

You can create up to 50 traffic classification rules in each call. You can specify a destination port range for each traffic classification rule.

integer

No

The destination port range that is used to match packets. Valid values: -1 and 1 to 65535.

Packets whose destination ports fall within the destination port range meet the traffic classification rule. If you do not specify destination port range, all packets meet the traffic classification rule.

You can enter up to two port numbers. Take note of the following rules:

  • If you enter only one port number, such as 1, packets whose destination port is 1 meet the traffic classification rule.

  • If you enter two port numbers, such as 1 and 200, packets whose destination ports fall into 1 and 200 meet the traffic classification rule.

  • If you enter two port numbers and one of them is -1, the other port number must also be -1. In this case, all packets meet the traffic classification rule.

You can create up to 50 traffic classification rules in each call. You can specify a destination port range for each traffic classification rule.

80

SrcCidr

string

No

The source CIDR block of packets. IPv6 and IPv4 addresses are supported.

Packets whose source IP addresses fall into the specified source CIDR block meet the traffic classification rule. If you do not specify a source CIDR block, all packets meet the traffic classification rule.

You can create up to 50 traffic classification rules in each call. You can specify a source CIDR block for each traffic classification rule.

192.168.10.0/24

SrcPortRange

array

No

The source port range that is used to match packets. Valid values: -1 and 1 to 65535.

Packets whose source ports fall within the source port range meet the traffic classification rule. If you do not specify a source port range, all packets meet the traffic classification rule.

You can enter up to two port numbers. Take note of the following rules:

  • If you enter only one port number, such as 1, packets whose source port is 1 meet the traffic classification rule. A value of -1 specifies all source ports.

  • If you enter two port numbers, such as 1 and 200, packets whose source ports fall into 1 and 200 meet the traffic classification rule.

  • If you enter two port numbers and one of them is -1, the other port number must also be -1. In this case, all packets meet the traffic classification rule.

You can create up to 50 traffic classification rules in each call. You can specify a source port range for each traffic classification rule.

integer

No

The source port range that is used to match packets. Valid values: -1 and 1 to 65535.

Packets whose source ports fall within the source port range meet the traffic classification rule. If you do not specify a source port range, all packets meet the traffic classification rule.

You can enter up to two port numbers. Take note of the following rules:

  • If you enter only one port number, such as 1, packets whose source port is 1 meet the traffic classification rule.

  • If you enter two port numbers, such as 1 and 200, packets whose source ports fall into 1 and 200 meet the traffic classification rule.

  • If you enter two port numbers and one of them is -1, the other port number must also be -1. In this case, all packets meet the traffic classification rule.

You can create up to 50 traffic classification rules in each call. You can specify a source port range for each traffic classification rule.

1

TrafficMatchRuleName

string

No

The name of the traffic classification rule.

You can create up to 50 traffic classification rules in each call. You can specify a name for each traffic classification rule.

The name can be empty or 1 to 128 characters in length, and cannot start with http:// or https://.

nametest

AddressFamily

string

No

The address family. You can set the value to IPv4 or IPv6, or leave the value empty.

IPv4

Response parameters

Parameter

Type

Description

Example

object

The response.

TrafficMarkingPolicyId

string

The ID of the traffic marking policy.

tm-u9nxup5kww5po8****

RequestId

string

The ID of the request.

0876E54E-3E36-5C31-89F0-9EE8A9266F9A

Examples

Success response

JSON format

{
  "TrafficMarkingPolicyId": "tm-u9nxup5kww5po8****",
  "RequestId": "0876E54E-3E36-5C31-89F0-9EE8A9266F9A"
}

Error codes

HTTP status code

Error code

Error message

Description

400 InvalidTransitRouterId.NotFound TransitRouterId is not found. The error message returned because the ID of the transit router does not exist.
400 IllegalParam.Protocol Protocol is illegal. The error message returned because the specified protocol is invalid.
400 OperationFailed.TransitRouterType Operation failed because The Basic TransitRouter does not support this action. The error message returned because this operation is not supported by Basic Edition transit routers.
400 IllegalParam.Priority Priority is illegal. The error message returned because the specified priority is invalid.
400 IllegalParam.MarkingDscp MarkingDscp is illegal. The error message returned because the MarkingDscp parameter is set to an invalid value.
400 IllegalParam.SrcCidr SrcCidr is illegal. The error message returned because the specified source CIDR block is invalid.
400 IllegalParam.DstCidr DstCidr is illegal. The error message returned because the specified destination CIDR block (DstCidr) is invalid.
400 Duplicated.Priority The parameter Priority is duplicated. The error message returned because duplicate priorities are specified.
400 Duplicated.MarkingDscp The parameter MarkingDscp is duplicated. The error message returned because the MarkingDscp parameter specifies duplicate descriptions.
400 Duplicated.TrafficMatchRules The parameter TrafficMatchRules are duplicated. The error message returned because the traffic match rules (TrafficMatchRules) are duplicate.
400 QuotaExceeded.TrafficMatchRule The maximum number of TrafficMatchRule per Transit Router is exceeded. The number of flow classification rules supported by each forwarding router instance exceeds the limit. You can submit a work order to increase the quota.
400 IllegalParam.MatchDscp MarkingDscp is invalid. MarkingDscp parameter is illegal.
400 IllegalParam.SrcPortRange The specified SrcPortRange is illegal.
400 IllegalParam.DstPortRange The specified DstPortRange is illegal. The specified DstPortRange is illegal.
400 AttrMismatching.CidrAddressFamily Attribute SrcCidr or DstCidr of TrafficMarkRule does not match AddressFamily. Attribute SrcCidr or DstCidr of TrafficMarkRule does not match AddressFamily.
400 IllegalParam.AddressFamily AddressFamily is illegal. The AddressFamily value of the request parameter is invalid. Valid values are IPv4 or IPv6.
400 AttrMismatching.SrcCidrDstCidr Attribute SrcCidr of TrafficMarkRule does not match DstCidr. Attribute SrcCidr of TrafficMarkRule does not match DstCidr.
400 AttrMismatching.CidrProtocol Attribute SrcCidr or DstCidr of TrafficMarkRule does not match Protocol. Attribute SrcCidr or DstCidr of TrafficMarkRule does not match Protocol.
400 InvalidTransitRouterMode.NeedUpgrade TransitRouter need to upgrade. The error message returned because the specified transit router mode is not supported.
400 OperationUnsupported.DstPortRange Current TR version does not support setting destination port range. Current TR version does not support setting destination port range.
400 OperationUnsupported.SrcPortRange Current TR version does not support setting source port range. Current TR version does not support setting source port range
400 OperationUnsupported.IPv6Cidr The traffic marking policy for current TR type does not support IPv6 CIDR. The flow classification rules in the flow marking policy of the basic version forwarding router do not support IPv6 network segments.
400 IncorrectStatus.TransitRouterInstance The status of TransitRouter is incorrect. The error message returned because the transit router is in an invalid state.
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 MissingParam.TransitRouterId The parameter TransitrouterId is mandatory. The error message returned because the TransitRouterId parameter is not set.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.