All Products
Search

This Product

    :ModifyPhysicalConnectionAttribute

    Document Center

    :ModifyPhysicalConnectionAttribute

    Last Updated:Mar 27, 2026

    Modifies an Express Connect circuit.

    Operation description

    When you call this operation, take note of the following limits:

    • If an Express Connect circuit is in the Initial, Enabled, or Rejected state, you can modify the specifications of the Express Connect circuit and the ID of the redundant circuit.
    • If an Express Connect circuit is in the Canceled, Allocating, AllocationFailed, or Terminated state, you cannot modify the specifications of the Express Connect circuit.
    • After you modify the specifications of an Express Connect circuit that is in the Rejected state, the Express Connect circuit enters the Initial state.

    Debugging

    You can run this interface directly in OpenAPI Explorer, saving you the trouble of calculating signatures. After running successfully, OpenAPI Explorer can automatically generate SDK code samples.

    Authorization information

    The following table shows the authorization information corresponding to the API. The authorization information can be used in the Action policy element to grant a RAM user or RAM role the permissions to call this API operation. Description:

    • Operation: the value that you can use in the Action element to specify the operation on a resource.
    • Access level: the access level of each operation. The levels are read, write, and list.
    • Resource type: the type of the resource on which you can authorize the RAM user or the RAM role to perform the operation. Take note of the following items:
      • For mandatory resource types, indicate with a prefix of * .
      • If the permissions cannot be granted at the resource level, All Resources is used in the Resource type column of the operation.
    • Condition Key: the condition key that is defined by the cloud service.
    • Associated operation: other operations that the RAM user or the RAM role must have permissions to perform to complete the operation. To complete the operation, the RAM user or the RAM role must have the permissions to perform the associated operations.
    Operation Access level Resource type Condition key Associated operation
    vpc:ModifyPhysicalConnectionAttribute update
    *PhysicalConnection
    acs:vpc:{#regionId}:{#accountId}:physicalconnection/{#PhysicalConnectionId}
      none
    		 none

    Request parameters

    Parameter Type Required Description Example
    RegionId string Yes

    The region ID of the Express Connect circuit.

    You can call the DescribeRegions operation to query the most recent region list.

    		 cn-shanghai
    PhysicalConnectionId string Yes

    The ID of the Express Connect circuit.

    		 pc-119mfjzm******
    LineOperator string No

    The connectivity provider of the Express Connect circuit. Valid values:

    • CT: China Telecom
    • CU: China Unicom
    • CM: China Mobile
    • CO: other connectivity providers in the Chinese mainland
    • Equinix: Equinix
    • Other: other connectivity providers outside the Chinese mainland
    		 CT
    bandwidth integer No

    The bandwidth value for the connection over the Express Connect circuit. Unit: Mbit/s. Valid values: 2 to 10240.

    		 5
    PeerLocation string No

    The geographical location of the data center.

    		 XX Number, XX Road, XX Town, XX District, Hangzhou City, Zhejiang Province.
    PortType string No

    The port type of the Express Connect circuit. Valid values:

    • 100Base-T: 100 Mbit/s copper Ethernet port
    • 1000Base-T (default): 1,000 Mbit/s copper Ethernet port
    • 1000Base-LX: 1,000 Mbit/s single-mode optical port (10 kilometers)
    • 10GBase-T: 10,000 Mbit/s copper Ethernet port
    • 10GBase-LR: 10,000 Mbit/s single-mode optical port (10 kilometers)
    • 40GBase-LR: 40,000 Mbit/s single-mode optical port
    • 100GBase-LR: 100,000 Mbit/s single-mode optical port
    Note To use ports 40GBase-LR and 100GBase-LR, you must first contact your account manager.
    		1000Base-LX
    RedundantPhysicalConnectionId string No

    The ID of the redundant Express Connect circuit. The redundant Express Connect circuit must be in the Allocated, Confirmed, or Enabled state.

    		 pc-119mfjzm7
    Description string No

    The description of the Express Connect circuit.

    The description must be 2 to 256 characters in length. It must start with a letter but cannot start with http:// or https://.

    		 The description of the Express Connect circuit.
    Name string No

    The name of the Express Connect circuit.

    The name must be 2 to 128 characters in length and can contain letters, digits, periods (.), underscores (_), and hyphens (-). It must start with a letter but cannot start with http:// or https://.

    		 Name
    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 client token can contain only ASCII characters.

    Note If you do not specify this parameter, the system automatically uses the request ID as the client token. The request ID may be different for each request.
    		efefe566754h
    CircuitCode string No

    The circuit code of the Express Connect circuit. The circuit code is provided by the connectivity provider.

    		 longtel001

    Response parameters

    Parameter Type Description Example
    object
    RequestId string

    The request ID.

    		 013EE132-A109-4247-91B0-099A8FF49AD7

    Examples

    Sample success responses

    JSONformat

    {
  "RequestId": "013EE132-A109-4247-91B0-099A8FF49AD7"
}

    Error codes

    HTTP status code Error code Error message Description
    400 InvalidLineOperator.Malformd The LineOperator provided was invalid. The value of the LineOperator parameter is invalid.
    400 InvalidPeerLocation.Malformd The PeerLocation provided was invalid. PeerLocation is set to an invalid value.
    400 InvalidPortType.Malformd The PortType provided was invalid. The specified port type is invalid.
    400 InvalidName.Malformed The specified ?Name? is not valid. The error message returned because the name format is invalid.
    400 InvalidStatus invalid physical connection status. The Express Connect circuit is in an invalid state.
    400 InvalidBandwidth invalid physical connection banwidth. The specified maximum bandwidth of the Express Connect circuit is invalid.
    400 InvalidRedundantPhysicalConnection redundant physical connection doesn't belong to current user. The specified redundant Express Connect circuit does not belong to your Alibaba Cloud account.
    400 InvalidRedundantPhysicalConnectionStatus invalid redundant physical connection status. The redundant Express Connect circuit is in an invalid state.
    400 InvalidCircuitCode.Malformed circuitCode is illegal. The error message returned because CircuitCode is set to an invalid value.
    400 InvalidPhysicalConnectionOperator.Malformed Specified PhysicalConnection Operator is not valid. The operation on the Express Connect circuit is invalid.
    400 InvalidPhysicalConnectionBandwidth.Malformed Specified PhysicalConnection Bandwidth is not valid. The bandwidth of the Express Connect circuit is set to an invalid value.
    400 InvalidDescription.Malformed The specified Description is not valid. Parameter Description value is illegal
    400 OperationDenied.VPconn The operation is not allowed because of VPconn. The operation failed because the hosted connection does not support the operation.
    404 InvalidRegionId.NotFound The RegionId provided does not exist in our records. The RegionId parameter is set to an invalid value. Specify a valid value and try again.
    404 InvalidPhysicalConnectionId.NotFound The PhysicalConnectionId provided does not exist in our records. The Express Connect circuit does not exist.

    For a list of error codes, visit the Service error codes.

    Change history

    Change time Summary of changes Operation
    2024-06-13 The Error code has changed View Change Details
    2024-02-28 API Description Update. The Error code has changed View Change Details