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Cloud Enterprise Network:UpdateTrafficMarkingPolicyAttribute

Last Updated:Aug 12, 2026

Modifies the name, description, and traffic classification rules of a traffic marking policy.

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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

cen:UpdateTrafficMarkingPolicyAttribute

update

*CenInstance

acs:cen:*:{#accountId}:ceninstance/{#CenId}

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 token, but you must make sure that the token is unique among different requests. The token can contain only ASCII characters and cannot exceed 64 characters in length.

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 syntax, 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. If the request passes the dry run, the name, description, and traffic classification rules of the traffic marking policy are modified.

false

TrafficMarkingPolicyId

string

Yes

The ID of the traffic marking policy.

tm-u9nxup5kww5po8****

TrafficMarkingPolicyName

string

No

The new 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 new description of the traffic marking policy.

The description can be empty or 1 to 256 characters in length, and cannot start with http:// or https://.

desctest

AddTrafficMatchRules

array<object>

No

The list of traffic classification rules to add.

You can add up to 50 traffic classification rules at a time.

object

No

The list of traffic classification rules to add.

MatchDscp

integer

No

The Differentiated Services Code Point (DSCP) value of the traffic packet. Valid values: 0 to 63.

The traffic classification rule matches traffic that contains the specified DSCP value. If you do not set this parameter, the traffic classification rule matches traffic with any DSCP value.

Note

The DSCP value refers to the DSCP value that the traffic packet already carries before entering the inter-region connection.

You can add up to 50 traffic classification rules at a time, and each traffic classification rule can match one DSCP value.

1

DstCidr

string

No

The destination CIDR block of the traffic packet. IPv4 and IPv6 addresses are supported.

The traffic classification rule matches traffic whose destination IP address falls within the destination CIDR block. If you do not set this parameter, the traffic classification rule matches traffic with any destination IP address.

You can add up to 50 traffic classification rules at a time, and each traffic classification rule can specify one destination CIDR block.

172.30.0.0/24

TrafficMatchRuleDescription

string

No

The description of the traffic classification rule.

You can add up to 50 traffic classification rules at a time, and each traffic classification rule can have one description.

The description can be empty or 1 to 256 characters in length, and cannot start with http:// or https://.

test1

Protocol

string

No

The protocol type of the traffic packet.

The traffic marking policy supports matching traffic of multiple protocol types, such as HTTP, HTTPS, TCP, UDP, SSH, and Telnet. For more protocol types, log on to the Cloud Enterprise Network (CEN) console.

Some protocols have fixed ports. Click to view port details.

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

  • If the protocol type is GRE, the destination port must be set to -1.

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

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

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

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

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

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

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

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

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

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

You can add up to 50 traffic classification rules at a time, and each traffic classification rule can match one protocol type.

UDP

DstPortRange

array

No

The destination port of the traffic packet. Valid values: -1 and 1 to 65535.

The traffic classification rule matches traffic whose destination port falls within the destination port range. If you do not set this parameter, the traffic classification rule matches traffic with any destination port.

This parameter supports up to two port numbers. The input format is described as follows:

  • If you enter only one port number, such as 1, the system matches traffic whose destination port is 1 by default. If the value is -1, the system matches traffic with any destination port.

  • If you enter two port numbers, such as 1 and 200, the system matches traffic whose destination port is in the range of 1 to 200 by default.

  • If you enter two port numbers and one of them is -1, the other port number must also be -1, which indicates that traffic with any destination port is matched.

You can add up to 50 traffic classification rules at a time, and each traffic classification rule can specify one destination port range.

integer

No

The destination port of the traffic packet. Valid values: -1 and 1 to 65535.

The traffic classification rule matches traffic whose destination port falls within the destination port range. If you do not set this parameter, the traffic classification rule matches traffic with any destination port.

This parameter supports up to two port numbers. The input format is described as follows:

  • If you enter only one port number, such as 1, the system matches traffic whose destination port is 1 by default.

  • If you enter two port numbers, such as 1 and 200, the system matches traffic whose destination port is in the range of 1 to 200 by default.

  • If you enter two port numbers and one of them is -1, the other port number must also be -1, which indicates that traffic with any destination port is matched.

You can add up to 50 traffic classification rules at a time, and each traffic classification rule can specify one destination port range.

77

SrcCidr

string

No

The source CIDR block of the traffic packet. IPv4 and IPv6 addresses are supported.

The traffic classification rule matches traffic whose source IP address falls within the source CIDR block. If you do not set this parameter, the traffic classification rule matches traffic with any source IP address.

You can add up to 50 traffic classification rules at a time, and each traffic classification rule can match one source CIDR block.

10.128.32.0/19

SrcPortRange

array

No

The source port of the traffic packet. Valid values: -1 and 1 to 65535.

The traffic classification rule matches traffic whose source port falls within the source port range. If you do not set this parameter, the traffic classification rule matches traffic with any source port.

This parameter supports up to two port numbers. The input format is described as follows:

  • If you enter only one port number, such as 1, the system matches traffic whose source port is 1 by default. If the value is -1, the system matches traffic with any source port.

  • If you enter two port numbers, such as 1 and 200, the system matches traffic whose source port is in the range of 1 to 200 by default.

  • If you enter two port numbers and one of them is -1, the other port number must also be -1, which indicates that traffic with any source port is matched.

You can add up to 50 traffic classification rules at a time, and each traffic classification rule can specify one source port range.

integer

No

The source port of the traffic packet. Valid values: -1 and 1 to 65535.

The traffic classification rule matches traffic whose source port falls within the source port range. If you do not set this parameter, the traffic classification rule matches traffic with any source port.

This parameter supports up to two port numbers. The input format is described as follows:

  • If you enter only one port number, such as 1, the system matches traffic whose source port is 1 by default.

  • If you enter two port numbers, such as 1 and 200, the system matches traffic whose source port is in the range of 1 to 200 by default.

  • If you enter two port numbers and one of them is -1, the other port number must also be -1, which indicates that traffic with any source port is matched.

You can add up to 50 traffic classification rules at a time, and each traffic classification rule can specify one source port range.

22

TrafficMatchRuleName

string

No

The name of the traffic classification rule.

You can add up to 50 traffic classification rules at a time, and each traffic classification rule can have one name.

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

Guangzhou test

AddressFamily

string

No

The address type. Valid values: IPv4, IPv6, or empty.

IPv4

DeleteTrafficMatchRules

array<object>

No

The list of traffic classification rules to delete.

Note

Provide as much complete information as possible for the traffic classification rules, such as the source CIDR block, destination CIDR block, source port, destination port, and DSCP value. Otherwise, the system may not locate the target traffic classification rules, and the rules will not be deleted.

object

No

The list of traffic classification rules to delete.

MatchDscp

integer

No

The DSCP value of the traffic packet.

3

DstCidr

string

No

The destination CIDR block of the traffic packet. IPv4 and IPv6 addresses are supported.

192.168.200.3/32

TrafficMatchRuleDescription

string

No

The description of the traffic classification rule.

The description can be empty or 1 to 256 characters in length, and cannot start with http:// or https://.

Hangzhou-Qingdao CAT

Protocol

string

No

The protocol type of the traffic packet.

You can call the ListTrafficMarkingPolicies operation to query the details of the traffic classification rules that you want to delete.

TCP

DstPortRange

array

No

The destination port of the traffic packet.

integer

No

The destination port of the traffic packet.

22

SrcCidr

string

No

The source CIDR block of the traffic packet. IPv4 and IPv6 addresses are supported.

10.72.0.0/16

SrcPortRange

array

No

The source port of the traffic packet.

integer

No

The source port of the traffic packet.

23

TrafficMatchRuleName

string

No

The name of the traffic classification rule.

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

test

AddressFamily

string

No

The address type. Valid values: IPv4, IPv6, or empty.

IPv6

Response elements

Element

Type

Description

Example

object

The response parameters.

RequestId

string

The request ID.

60BB11B2-7BF4-54DC-BCC9-F706E1EB02AC

Examples

Success response

JSON format

{
  "RequestId": "60BB11B2-7BF4-54DC-BCC9-F706E1EB02AC"
}

Error codes

HTTP status code

Error code

Error message

Description

400 InvalidTrafficMarkingPolicyId.NotFound TrafficMarkingPolicyId is not found. The error message returned because the specified traffic marking policy ID (TrafficMarkingPolicyId) does not exist.
400 IncorrectStatus.TrafficMarkingPolicy The status of TrafficMarkingPolicy is incorrect. The error message returned because the status of the traffic marking policy does not support this operation. Try again later.
400 Duplicated.AddTrafficMatchRules The parameter AddTrafficMatchRules are duplicated.
400 Duplicated.DeleteTrafficMatchRulese The parameter DeleteTrafficMatchRules are duplicated.
400 InstanceExist.AddTrafficMatchRules The instance already exists. The error message returned because the specified instance already exists.
400 Duplicated.AddTrafficMatchRulesAndDeleteTrafficMatchRules The same rule in AddTrafficMatchRules and DeleteTrafficMatchRules is not supported.. The error message returned because the AddTrafficMatchRules and DeleteTrafficMatchRules cannot specify the same route. Delete duplicate routes and try again.
400 IllegalParam.DstPortRange The specified DstPortRange is illegal. The specified DstPortRange is illegal.
400 IllegalParam.SrcPortRange The specified SrcPortRange is illegal. The source port is invalid.
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.SrcPortRange Current TR version does not support setting source port range. Current TR version does not support setting source port range
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.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 IllegalParam.DstCidr DstCidr is illegal. The error message returned because the specified destination CIDR block (DstCidr) is invalid.
400 IllegalParam.SrcCidr SrcCidr is illegal. The error message returned because the specified source CIDR block is invalid.
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.TrafficMarkingPolicyId The parameter TrafficMarkingPolicyId is mandatory.
400 InvalidParameter.TrafficMarkingPolicyId The specified parameter TrafficMarkingPolicyId is invalid. The parameter TrafficMarkingPolicyId entered is illegal.
404 InvalidDeleteTrafficMatchRules.NotFound The specified DeleteTrafficMatchRules are not found. The error message returned because the value of the DeleteTrafficMatchRules parameter does not exist.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.