tencent cloud

This document describes how to change the instance network type and modify the instance access address.

Note：

Modifying the network configurations of an instance is highly risky. Do so only during off-peak hours. After modification, unless the original IP is assigned to another service or a custom IP repossession time is set, the original IP will remain valid for another 24 hours by default. We recommend you modify your business configuration accordingly as soon as possible.

Modifying Private Network Address

You can modify the private network address of a TencentDB instance in VPC.

1. Log in to the TDSQL for MySQL console and click an instance ID in the instance list to enter the instance details page.
2. On the instance details page, click next to Private Network Address to modify it. You can do so only when the current subnet has available IPs.
   
3. In the pop-up window, modify the private network address and click OK.

Switching Between VPC Subnets

You can switch a TDSQL for MySQL instance's network between VPC subnets.

1. Log in to the TDSQL for MySQL console and click an instance ID in the instance list to enter the instance details page.
2. On the instance details page, click Change Network in the Network section.
3. In the pop-up window, select the subnet to switch to under the VPC, select Auto-Assign IP or Specify IP, set Valid Hours of Old IP, and click OK.

   Note：

   • The original IP address remains valid for another 24 hours by default after the network is changed. Change your business IP address accordingly within 24 hours.
   • You can also set Valid Hours of Old IP to 0–168 hours. If it is set to 0 hours, the IP is released immediately after the network is changed. This may affect your business.
   • As the product supports an intra-region active-active architecture, we recommend you choose a VPC subnet in the same region as your business server or the source node.

   

Switching Between VPCs

1. Log in to the TDSQL for MySQL console and click an instance ID in the instance list to enter the instance details page.
2. On the instance details page, click Change Network in the Network section.
3. In the pop-up window, select the VPC to switch to, select Auto-Assign IP or Specify IP, set Valid Hours of Old IP, and click OK.

   Note：

   • The original VIP address remains valid for another 24 hours by default after the network is changed. Change your business IP address accordingly within 24 hours.
   • You can also set Valid Hours of Old IP to 0–168 hours. If it is set to 0 hours, the IP is released immediately after the network is changed. This may affect your business.
   • As the product supports an intra-region active-active architecture, we recommend you choose a VPC subnet in the same region as your business server or the source node.

Switching from Classic Network to VPC

1. Log in to the TDSQL for MySQL console and click an instance ID in the instance list to enter the instance details page.
2. On the instance details page, click Switch to VPC next to Network.
   
3. In the pop-up window, select a VPC, select Auto-Assign IP or Specify IP, and click OK.

   Note：

   • The switch from classic network to VPC is irreversible.
   • After the switch, VPC access will take effect immediately. The original classic network access will be retained for 24 hours; therefore, other instances associated to the instance should be migrated to VPC within 24 hours so as to guarantee uninterrupted access.
   • As the product supports an intra-region active-active architecture, we recommend you choose a VPC subnet in the same region as your business server or the source node.