You can cancel the ClassicLink connection whenever the intranet connection between an ECS instance of the classic network and a VPC is not needed.

Procedure

  1. Log on to the ECS console.
  2. In the left-side navigation pane, click Instances.
  3. Select the region of the instance, and then locate the target instance.
  4. Click More > Network and Security Group > Disconnect from VPC.
  5. In the displayed dialog box, click OK.