How to view information about network instances attached to a transit router-Cloud Enterprise Network(CEN)-阿里云帮助中心

After you attach network instances such as VPCs, ECRs, VBRs, IPsec-VPN connections, or CCNs to a transit router, you can view their connection information on the transit router details page.

View network instance connections

Log on to the CEN console.
On the CEN Instance page, click the ID of the CEN instance that you want to manage.
On the Basic Settings > Transit Router tab, find the transit router in the target region and click the transit router ID.

On the transit router details page, click the Intra-Region Connections tab to view information about the network instance connections.

Table 1. Network instance connection details for an Enterprise Edition transit router

Parameter	Description
Instance ID/Name	The ID and name of the network instance connection. Click the icon next to the name to rename the network instance connection.
Tag	The tags attached to the network instance connection.
Network Instance	The ID and name of the network instance.
Status	Click the icon to view traffic monitoring data for the network instance connection. Click Set Alarm to create threshold-based alert rules for the network instance connection. For more information, see Monitor CEN resources.
Metering	Click the icon to view the total traffic volume of the network instance connection within a specified time range. Unit: GB.
Instance Type	The type of the network instance. VPC Virtual Border Router (VBR) Virtual Private Network (VPN) Express Connect Router (ECR)
IPv6	Indicates whether the IPv6 feature is enabled for the network instance connection.
Associated Route Table	The ID of the transit router route table that is associated with the network instance connection.
Route Synchronization	The route synchronization status of the network instance. You can use the toggle switch to enable or disable route synchronization for the network instance. For more information, see Route synchronization.
Account ID	The ID of the account to which the network instance belongs.
Payer Account	The account that pays for the network instance. TR Owner Account: The account that owns the transit router pays the connection and data processing fees for the network instance. Other values indicate that the account that owns the network instance pays these fees.
Attach Time	The time when the network instance connection was created.
Status	The status of the network instance connection. Attached Attaching Detaching

Table 2. Network instance connection details for a Basic Edition transit router

Parameter	Description
Instance ID/Name	The ID and name of the network instance.
Region	The region where the network instance resides.
Instance Type	The type of the network instance. VPC Virtual Border Router (VBR) Cloud Connect Network (CCN)
Account ID	The ID of the account to which the network instance belongs.
Attach Time	The time when the network instance connection was created.
Status	The status of the network instance connection. Attached Attaching Detaching

API reference

ListTransitRouterVpcAttachments: Queries VPC attachments of an Enterprise Edition transit router.
ListTransitRouterVbrAttachments: Queries VBR attachments of an Enterprise Edition transit router.
ListTransitRouterVpnAttachments: Queries VPN attachments of an Enterprise Edition transit router.
ListTransitRouterEcrAttachments: Queries ECR attachments of an Enterprise Edition transit router.
DescribeCenAttachedChildInstances: Queries the network instances attached to a CEN instance.