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Help Center/ Cloud Connect/ API Reference/ API/ Central Network Connections/ Querying the List of Central Network Connections

Querying the List of Central Network Connections

Function

This API is used to query the list of central network connections.

Parameters marker and limit are used for pagination query. The default value of limit is 0. If marker is not specified, the first data record is returned.

Debugging

You can debug this API through automatic authentication in API Explorer or use the SDK sample code generated by API Explorer.

URI

GET /v3/{domain_id}/gcn/central-network/{central_network_id}/connections

Table 1 Path Parameters

Parameter

Mandatory

Type

Description

domain_id

Yes

String

Account ID.

central_network_id

Yes

String

Central network ID.

Table 2 Query Parameters

Parameter

Mandatory

Type

Description

limit

No

Integer

Number of records on each page.

Value range: 1 to 1000

marker

No

String

Pagination query information. You can obtain the marker values from the response of the last API call. You can enter the marker value of the previous page or the next page. If you enter the marker value of the previous page, the previous page will be queried. If you enter the marker value of the next page, the next page will be queried. During pagination query, the query criteria, including the filters, sorting criteria, and the limit value, cannot be modified.

sort_key

No

String

Field for sorting.

sort_dir

No

Object

Whether the resources are sorted in ascending or descending order. asc indicates the ascending order and desc indicates the descending order.

id

No

Array of arrays

Resource ID. Multiple IDs can be queried.

name

No

Array of strings

Resource name. Multiple names can be queried.

state

No

Array of arrays

Central network connection status. Multiple statuses can be queried.

global_connection_bandwidth_id

No

Array of arrays

Bandwidth package IDs.

bandwidth_type

No

Object

Bandwidth type. The bandwidth types are as follows:

  • BandwidthPackage: A global connection bandwidth billed by fixed bandwidth is required, and cross-site connection bandwidths are assigned from the global connection bandwidth.

  • TestBandwidth: The test bandwidth is free. Only the minimum bandwidth is used for testing cross-region connectivity.

connection_type

No

Object

Connection type.

is_cross_region

No

Boolean

Whether there are different regions.

Request Parameters

Table 3 Request header parameters

Parameter

Mandatory

Type

Description

X-Auth-Token

No

String

User token.

Response Parameters

Status code: 200

Table 4 Response body parameters

Parameter

Type

Description

request_id

String

Request ID.

page_info

PageInfo object

Pagination query information.

central_network_connections

Array of CentralNetworkConnection objects

List of the central network connections.

Table 5 PageInfo

Parameter

Type

Description

next_marker

String

Backward pagination identifier.

previous_marker

String

Forward pagination identifier.

current_count

Integer

Number of the resources in the current list.

Table 6 CentralNetworkConnection

Parameter

Type

Description

id

String

Instance ID.

name

String

Instance name.

description

String

Resource description. Angle brackets (<>) are not allowed.

domain_id

String

ID of the account that the instance belongs to.

enterprise_project_id

String

ID of the enterprise project that the resource belongs to.

central_network_id

String

Central network ID.

central_network_plane_id

String

ID of the central network plane.

global_connection_bandwidth_id

String

Global connection bandwidth ID.

bandwidth_type

String

Bandwidth type. The bandwidth types are as follows:

  • BandwidthPackage: A global connection bandwidth billed by fixed bandwidth is required, and cross-site connection bandwidths are assigned from the global connection bandwidth.

  • TestBandwidth: The test bandwidth is free. Only the minimum bandwidth is used for testing cross-region connectivity.

bandwidth_size

Integer

Amount of bandwidth, in Mbit/s.

state

String

Central network connection status.

  • AVAILABLE: The connection is available.

  • CREATING: The connection is being created.

  • UPDATING: The connection is being updated.

  • DELETING: The connection is being deleted.

  • FREEZING: The connection is being frozen.

  • UNFREEZING: The connection is being unfrozen.

  • RECOVERING: The connection is being recovered.

  • FAILED: The operation on the connection failed.

  • DELETED: The connection is deleted.

  • APPROVING: The connection is being approved.

  • APPROVED: The connection is approved.

  • UNAPPROVED: The approval failed.

is_frozen

Boolean

Whether the resource is frozen.

connection_type

String

Type of a central network connection.

  • ER-ER: connections between enterprise routers

  • ER-GDGW: connections between enterprise routers and global DC gateways

  • ER-ER_ROUTE_TABLE: connections between enterprise routers and route tables of other enterprise routers

connection_point_pair

Array of ConnectionPoint objects

Both ends of a central network connection. The length is fixed to an array of 2.

created_at

String

Time when the resource was created. The time is in the yyyy-MM-ddTHH:mm:ss format.

updated_at

String

Time when the resource was updated. The time must be in the yyyy-MM-ddTHH:mm:ss format.

Table 7 ConnectionPoint

Parameter

Type

Description

id

String

Instance ID.

project_id

String

Project ID.

region_id

String

Region ID.

site_code

String

Site code.

instance_id

String

Instance ID at an end of a connection.

parent_instance_id

String

Parent resource ID of the instance at an end of a connection.

type

String

Type of a central network connection point.

  • ER: an enterprise router

  • GDGW: a global DC gateway

  • ER_ROUTE_TABLE: an enterprise router route table

Example Requests

Querying the list of central network connections

GET /v3/{domain_id}/gcn/central-network/{central_network_id}/connections

Example Responses

Status code: 200

The list of central network connections has been queried.

{
  "request_id" : "0050ea65af7e190d9a791d9e69f28e63",
  "page_info" : {
    "current_count" : 1
  },
  "central_network_connections" : [ {
    "id" : "eb350a5c-06c1-4b12-9ae4-3820f31faaa0",
    "name" : "er-connection",
    "domain_id" : "XXX",
    "enterprise_project_id" : "0",
    "central_network_id" : "43ad756e-2780-463e-a8ed-27a5bd77b7a7",
    "central_network_plane_id" : "238f60d5-ed1a-4508-8473-45509c530c8f",
    "bandwidth_type" : "TestBandwidth",
    "state" : "AVAILABLE",
    "is_frozen" : false,
    "connection_type" : "ER-ER",
    "connection_point_pair" : [ {
      "id" : "1c233723-234c-4b50-8fba-7072b4c6aa1a",
      "project_id" : "XXX",
      "region_id" : "region-abc",
      "site_code" : "region-abc",
      "instance_id" : "d238dd85-f769-485b-aa05-d20e1d3889df",
      "type" : "ER"
    }, {
      "id" : "8641d7f0-bd0c-49fe-8b70-3649cd7dd9b1",
      "project_id" : "XXX",
      "region_id" : "region-abc",
      "site_code" : "region-abc",
      "instance_id" : "96abbb18-4a77-4103-aa8e-b1c836154282",
      "type" : "ER"
    } ],
    "created_at" : "2023-10-09T08:02:43.31Z",
    "updated_at" : "2023-10-09T08:02:43.307Z"
  } ]
}

SDK Sample Code

The SDK sample code is as follows.

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package com.huaweicloud.sdk.test;

import com.huaweicloud.sdk.core.auth.ICredential;
import com.huaweicloud.sdk.core.auth.GlobalCredentials;
import com.huaweicloud.sdk.core.exception.ConnectionException;
import com.huaweicloud.sdk.core.exception.RequestTimeoutException;
import com.huaweicloud.sdk.core.exception.ServiceResponseException;
import com.huaweicloud.sdk.cc.v3.region.CcRegion;
import com.huaweicloud.sdk.cc.v3.*;
import com.huaweicloud.sdk.cc.v3.model.*;


public class ListCentralNetworkConnectionsSolution {

    public static void main(String[] args) {
        // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
        // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
        String ak = System.getenv("CLOUD_SDK_AK");
        String sk = System.getenv("CLOUD_SDK_SK");

        ICredential auth = new GlobalCredentials()
                .withAk(ak)
                .withSk(sk);

        CcClient client = CcClient.newBuilder()
                .withCredential(auth)
                .withRegion(CcRegion.valueOf("<YOUR REGION>"))
                .build();
        ListCentralNetworkConnectionsRequest request = new ListCentralNetworkConnectionsRequest();
        request.withCentralNetworkId("{central_network_id}");
        try {
            ListCentralNetworkConnectionsResponse response = client.listCentralNetworkConnections(request);
            System.out.println(response.toString());
        } catch (ConnectionException e) {
            e.printStackTrace();
        } catch (RequestTimeoutException e) {
            e.printStackTrace();
        } catch (ServiceResponseException e) {
            e.printStackTrace();
            System.out.println(e.getHttpStatusCode());
            System.out.println(e.getRequestId());
            System.out.println(e.getErrorCode());
            System.out.println(e.getErrorMsg());
        }
    }
}
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# coding: utf-8

import os
from huaweicloudsdkcore.auth.credentials import GlobalCredentials
from huaweicloudsdkcc.v3.region.cc_region import CcRegion
from huaweicloudsdkcore.exceptions import exceptions
from huaweicloudsdkcc.v3 import *

if __name__ == "__main__":
    # The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
    # In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
    ak = os.environ["CLOUD_SDK_AK"]
    sk = os.environ["CLOUD_SDK_SK"]

    credentials = GlobalCredentials(ak, sk)

    client = CcClient.new_builder() \
        .with_credentials(credentials) \
        .with_region(CcRegion.value_of("<YOUR REGION>")) \
        .build()

    try:
        request = ListCentralNetworkConnectionsRequest()
        request.central_network_id = "{central_network_id}"
        response = client.list_central_network_connections(request)
        print(response)
    except exceptions.ClientRequestException as e:
        print(e.status_code)
        print(e.request_id)
        print(e.error_code)
        print(e.error_msg)
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package main

import (
	"fmt"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/global"
    cc "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/cc/v3"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/services/cc/v3/model"
    region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/cc/v3/region"
)

func main() {
    // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
    // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
    ak := os.Getenv("CLOUD_SDK_AK")
    sk := os.Getenv("CLOUD_SDK_SK")

    auth := global.NewCredentialsBuilder().
        WithAk(ak).
        WithSk(sk).
        Build()

    client := cc.NewCcClient(
        cc.CcClientBuilder().
            WithRegion(region.ValueOf("<YOUR REGION>")).
            WithCredential(auth).
            Build())

    request := &model.ListCentralNetworkConnectionsRequest{}
	request.CentralNetworkId = "{central_network_id}"
	response, err := client.ListCentralNetworkConnections(request)
	if err == nil {
        fmt.Printf("%+v\n", response)
    } else {
        fmt.Println(err)
    }
}

For SDK sample code of more programming languages, see the Sample Code tab in API Explorer. SDK sample code can be automatically generated.

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package com.huaweicloud.sdk.test;

import com.huaweicloud.sdk.core.auth.ICredential;
import com.huaweicloud.sdk.core.auth.GlobalCredentials;
import com.huaweicloud.sdk.core.exception.ConnectionException;
import com.huaweicloud.sdk.core.exception.RequestTimeoutException;
import com.huaweicloud.sdk.core.exception.ServiceResponseException;
import com.huaweicloud.sdk.cc.v3.region.CcRegion;
import com.huaweicloud.sdk.cc.v3.*;
import com.huaweicloud.sdk.cc.v3.model.*;


public class ListCentralNetworkConnectionsSolution {

    public static void main(String[] args) {
        // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
        // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
        String ak = System.getenv("CLOUD_SDK_AK");
        String sk = System.getenv("CLOUD_SDK_SK");

        ICredential auth = new GlobalCredentials()
                .withAk(ak)
                .withSk(sk);

        CcClient client = CcClient.newBuilder()
                .withCredential(auth)
                .withRegion(CcRegion.valueOf("<YOUR REGION>"))
                .build();
        ListCentralNetworkConnectionsRequest request = new ListCentralNetworkConnectionsRequest();
        request.withCentralNetworkId("{central_network_id}");
        try {
            ListCentralNetworkConnectionsResponse response = client.listCentralNetworkConnections(request);
            System.out.println(response.toString());
        } catch (ConnectionException e) {
            e.printStackTrace();
        } catch (RequestTimeoutException e) {
            e.printStackTrace();
        } catch (ServiceResponseException e) {
            e.printStackTrace();
            System.out.println(e.getHttpStatusCode());
            System.out.println(e.getRequestId());
            System.out.println(e.getErrorCode());
            System.out.println(e.getErrorMsg());
        }
    }
}
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# coding: utf-8

import os
from huaweicloudsdkcore.auth.credentials import GlobalCredentials
from huaweicloudsdkcc.v3.region.cc_region import CcRegion
from huaweicloudsdkcore.exceptions import exceptions
from huaweicloudsdkcc.v3 import *

if __name__ == "__main__":
    # The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
    # In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
    ak = os.environ["CLOUD_SDK_AK"]
    sk = os.environ["CLOUD_SDK_SK"]

    credentials = GlobalCredentials(ak, sk)

    client = CcClient.new_builder() \
        .with_credentials(credentials) \
        .with_region(CcRegion.value_of("<YOUR REGION>")) \
        .build()

    try:
        request = ListCentralNetworkConnectionsRequest()
        request.central_network_id = "{central_network_id}"
        response = client.list_central_network_connections(request)
        print(response)
    except exceptions.ClientRequestException as e:
        print(e.status_code)
        print(e.request_id)
        print(e.error_code)
        print(e.error_msg)
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package main

import (
	"fmt"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/global"
    cc "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/cc/v3"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/services/cc/v3/model"
    region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/cc/v3/region"
)

func main() {
    // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
    // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
    ak := os.Getenv("CLOUD_SDK_AK")
    sk := os.Getenv("CLOUD_SDK_SK")

    auth := global.NewCredentialsBuilder().
        WithAk(ak).
        WithSk(sk).
        Build()

    client := cc.NewCcClient(
        cc.CcClientBuilder().
            WithRegion(region.ValueOf("<YOUR REGION>")).
            WithCredential(auth).
            Build())

    request := &model.ListCentralNetworkConnectionsRequest{}
	request.CentralNetworkId = "{central_network_id}"
	response, err := client.ListCentralNetworkConnections(request)
	if err == nil {
        fmt.Printf("%+v\n", response)
    } else {
        fmt.Println(err)
    }
}

For SDK sample code of more programming languages, see the Sample Code tab in API Explorer. SDK sample code can be automatically generated.

Status Codes

Status Code

Description

200

The list of central network connections has been queried.

Error Codes

See Error Codes.

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