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Example: Configuring Hybrid Access for a Private Network CLB

Last updated: 2022-04-24 10:14:46

    This document provides a sample configuration for the scenario that both the VPC and classic network are required during the business migration.

    Scenario

    Resource configuration of the classic network-based business:

    • The CVM client accesses a private network CLB.
    • The private network CLB is bound with two CVMs (CVM 1 and CVM 2) as the real servers.
    • Applications deployed in CVM 1 and CVM 2 can access the backend TencentDB for MySQL services.

    Requests:

    • Migrates resources from the classic network to a VPC
    • The VPC-based clients has a priority access to the private network CLB service in the classic network.
    • The classic network access remains available for one month after the migration.

    Migration process

    • 1Create a VPC
    • 2Migrate TencentDB services
    • 3Configure a terminal connection
    • 4Create a private network CLB and configure its backend service
    • 5Configure a Classiclink
    • 6Release the classic network resources

    Steps

    1. Create a VPC as instructed in Creating VPCs.
    2. Migrate the TencentDB for MySQL services to the VPC as instructed in Network Switch.
      Note:

      During the migration, the TencentDB instance still connects. Both the original classic network IP and VPC IP addresses remain valid after the migration, thus maintaining your service availability.

    3. Configure a terminal connection service to allow the CVM client in the VPC to access the public network CLB service in the classic network.
      Note:

      A terminal connection does not support cross-region or cross-account communication. If you want to establish a terminal connection, please submit a ticket.

    4. Create a private network CLB instance and its real server in the VPC, and configure the related services.
    5. Configure a Classiclink to allow the classic network-based CVM to access the private network CLB instance in the VPC. Test whether the VPC provides services normally.
    6. After the VPC service is normal and VPC-based CVM starts accessing the private network CLB in the VPC, delete the terminal connection, maintain Classiclink, and release the resources in the classic network.
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