Cloud Enterprise Network:DeleteTransitRouterVpcAttachment

DeleteTransitRouterVpcAttachment is an asynchronous operation. After you send a request, the system returns a request ID and runs the task in the background. You can call the ListTransitRouterVpcAttachments operation to query the status of a VPC connection.

• If a VPC connection is in the Detaching state, the VPC connection is being deleted. You can query the VPC connection but cannot perform other operations.
• If a VPC connection cannot be found, it is deleted.

Prerequisites

Before you delete a VPC connection, make sure that the following requirements are met:

• No associated forwarding correlation is established between the VPC connection and the route tables of the Enterprise Edition transit router. For more information about how to delete an associated forwarding correlation, see DissociateTransitRouterAttachmentFromRouteTable .
• No route learning correlation is established between the VPC connection and the route tables of the Enterprise Edition transit router. For more information about how to delete a route learning correlation, see DisableTransitRouterRouteTablePropagation .
• The route table of the VPC does not contain routes that point to the VPC connection. For more information about how to delete routes from a VPC route table, see DeleteRouteEntry .
• The route tables of the Enterprise Edition transit router do not contain a custom route entry whose next hop is the network instance connection. For more information about how to delete custom routes from the route tables of an Enterprise Edition transit router, see DeleteTransitRouterRouteEntry .
• The route tables of the Enterprise Edition transit router do not contain a route that is generated from a prefix list and the next hop is the VPC connection. You can delete such routes by disassociating the route table from the prefix list. For more information, see DeleteTransitRouterPrefixListAssociation .