# Data Structure

Table 1 Description of the links field
Parameter | Type | Description
--- | --- | ---
self | String | Link to the current resource
next | String | Link to the next page

Table 2 Description of the tag field
Parameter | Type | Description
--- | --- | ---
key | String | Tag key. The key contains 36 Unicode characters at most and cannot be blank. It can contain only digits, letters, hyphens (-), and underscores (_).
value | String | Tag value. Each value contains 43 Unicode characters at most and can be an empty string. It can contain only digits, letters, hyphens (-), and underscores (_).

Table 3 Description of the routers field
Parameter | Type | Description
--- | --- | ---

router_id

String

ID of the associated VPC

You can obtain the VPC ID using the following methods:

- On the VPC console, obtain the VPC ID on the VPC details page.
- Obtain the VPC ID according to "Querying VPCs" in Virtual Private Cloud User Guide.

router_region | String | Region of the VPC If it is left blank, the region of the project in the token takes effect by default.

Table 4 Description of the alias_target field
Parameter | Type | Description
--- | --- | ---
resource_type | String | Service that support domain name aliases The value can be cloudsite or waf (Web Application Firewall).
resource_domain_name | String | Domain name of the target service

Parent topic: Public Parameters