Yes. A VPC has a region attribute (such as Guangzhou, Beijing, or Seoul), and the subnets in the VPC have an availability zone attribute (such as Guangzhou Zone 1 or Guangzhou Zone 2), so subnets in the same VPC can be deployed in different availability zones in the same region. The availability zone attribute of a CVM inherits that of the subnet it belongs to, and CVMs are purchased under subnets in availability zones. Therefore, it is possible for different CVMs to be deployed in different availability zones.
Each VPC can provide up to 65,533 private IP addresses for Tencent Cloud service instances.
Classless Inter-Domain Routing (CIDR) implements overall division of the network by using the independent network space address block designated by you together with IP and mask. It eliminates the traditional concepts of class A, class B, and class C address ranges and subnetting and allocates IP address space more effectively. When creating a VPC and subnet, you need to create the corresponding IP range in the form of CIDR block. For example, to create an IP range of
10.0.16.0 - 10.0.17.255, then:
10.0.16.0 - 10.0.17.255 to the binary format
00001010.00000000.00010000.00000000 - 00001010.00000000.00010001.11111111, with the first 23 bits being the same. The CIDR block format after conversion is
If there is only one TencentDB for Redis instance in the VPC, after the instance is manually terminated, it will be moved to the TencentDB recycle bin. At this time, the Redis resources have not really been released, so the VPC cannot be deleted immediately. You can solve this problem in the following ways:
When the EIP quota is exceeded, the application for EIP will fail. For more information on how to view the quota details, please see EIP quota limit.