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TencentDB for Redis®
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    Changing Networks

    最終更新日:2024-11-05 10:18:18
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      Network overview

      Tencent Cloud offers VPC (recommended) and classic network environments. A VPC is a logically isolated network space that can be customized in Tencent Cloud. Similar to the traditional network run in an IDC, a VPC is where your Tencent Cloud service resources are managed, such as Cloud Virtual Machine, Cloud Load Balancer, and TencentDB for MySQL. The difference between classic network and VPC is as follows:
      The classic network is a public network resource pool for all Tencent Cloud users. The private IPs of all CVMs are assigned by Tencent Cloud. You cannot customize IP ranges or IP addresses.
      A VPC is a logically isolated network space in Tencent Cloud. In a VPC, you can customize IP ranges, IP addresses, and routing policies, making it more suitable for use cases requiring custom configurations.
      A subnet is a network space in a VPC, which carries all the cloud resource deployments. A VPC has at least one subnet. A subnet will be created together with the VPC. You can also create more subnets in a VPC that suit your specific requirements to deploy different businesses.
      A subnet is AZ-specific. You can create subnets in different AZs in the same VPC, which communicate with each other over the private network by default.

      Notes

      You can switch from classic network to VPC but not vice versa.
      You can switch from one VPC to another or between subnets in the same VPC.
      After the network switch, the new IP address will take effect immediately, and all connections to the original IP address will be closed. The original IP address will be retained for up to 15 days.
      Note:
      To ensure the service availability and keep your businesses uninterrupted during network switch, update the IP address promptly as needed and be cautious about releasing the old IP address.

      Prerequisites

      You have created a database instance and configured the classic network or VPC as instructed in Creating TencentDB for Redis® Instance.
      You have created the target VPC as instructed in Creating VPC.
      The database instance is in Running status, with no ongoing tasks.

      Changing the network

      1. Log in to the TencentDB for Redis® console.
      2. Above the instance list, select the region.
      3. In the instance list, find the target instance.
      4. Click the target instance ID to enter the Instance Details page.
      5. In the Network Info section on the Instance Details page, you can see the network and private IP of the current TencentDB for Redis® instance. Click Change Network next to Network. In this way, you can switch from the classic network to a VPC or from the current VPC to another VPC.
      6. In the Change Network window, configure the new network information and click OK.
      Network: Select a VPC and a subnet in the drop-down lists next to Network respectively.
      New IP: Select Auto Assign or Designate Address. If you select the latter, then enter a custom IP address in the input box.
      Old IP: Set the release time of the old IP. You can select Release Now, Release after 1 day, Release after 2 days, Release after 3 days, Release after 7 days, or Release after 15 days as needed to ensure the business continuity during the network change.

      Changing the subnet

      Note
      The subnet change feature is available only when the Network is VPC.
      1. Log in to the TencentDB for Redis® console.
      2. Above the instance list, select the region.
      3. In the instance list, find the target instance.
      4. Click the target instance ID to enter the Instance Details page.
      5. In the Network Info section, you can see the network and private IP of the current TencentDB for Redis® instance. Click Change Subnet.
      6. In the pop-up window, select the target subnet and click OK.

      Related APIs

      API
      Description
      Modifies the network configuration of instance
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