ApsaraDB supports two types of network: classic network and Virtual Private Cloud (VPC). The differences between them are as follows.
Classic network: Cloud services on a classic network are not isolated, and unauthorized access is blocked only by the security group or whitelist.
VPC: A VPC is an isolated network environment on Alibaba Cloud. You can customize the route tables, IP address range, and gateway in the VPC. In addition, you can combine your IDC with cloud resources in the VPC into a virtual datacenter through a leased line or VPN and migrate applications to the cloud smoothly.
A classic network can be converted to a VPC, but not vice versa.
When switching a classic network to a VPC, you can choose to retain both the classic network IP address and VPC IP address.
Before switching to VPC, create a VPC that is in the same region as your Memcache instance. For more information, see VPC.
Log on to the Memcache console, select the target instance ID or click Manage.
Click Switch to VPC Network on the Instance Information page.
On the Switch to VPC Network dialog box, select a VPC and vSwitch. Choose whether to retain the classic network IP address and set the retention period. Then click OK.
Note: You can click Refresh on the Instance Information page to view the VPC and classic network IP addresses of the instance.