Notes and Constraints

Constraints on VPC Resources

Note the restrictions on the following VPC resources before using them.

VPC Resource Quotas

A quota defines the maximum number of resources of a certain type that can be created in a region.

Suppose the VPC quota in CN-Hong Kong is 5. If two VPCs have been created in this region, the remaining quota is 3.

To help you save quotas, Huawei Cloud sets limit on the maximum number of cloud resources that you can create in each region.

You can log in to the console to view the default quotas for each resource. To increase the resource quota, you can refer to Applying for a Higher Quota.

Table 1 lists the quotas about VPC resources. Resource quotas are displayed by region. By default, the quotas are the same across regions.

**Table 1** VPC resource quotas
Item	Default Quota	Adjustable
Maximum number of VPCs per region	Quotas vary by your account type and service level. You can go to the console to check your quotas.	Yes Submit a service ticket
Maximum number of subnets per region	Quotas vary by your account type and service level. You can go to the console to check your quotas.	Yes Submit a service ticket
Maximum number of route tables that can be associated with a VPC in a region	Quotas vary by your account type and service level. You can go to the console to check your quotas.	Yes Submit a service ticket
Maximum number of routes per route table in a region	Quotas vary by your account type and service level. You can go to the console to check your quotas.	No
Maximum number of security groups per region	Quotas vary by your account type and service level. You can go to the console to check your quotas.	Yes Submit a service ticket
Maximum number of security group rules per region	Quotas vary by your account type and service level. You can go to the console to check your quotas.	Yes Submit a service ticket
Maximum number of network ACLs per region	Quotas vary by your account type and service level. You can go to the console to check your quotas.	Yes Submit a service ticket
Maximum number of IP address groups per region	Quotas vary by your account type and service level. You can go to the console to check your quotas.	Yes Submit a service ticket
Maximum number of VPC peering connections per region	Quotas vary by your account type and service level. You can go to the console to check your quotas.	No
Maximum number of VPC flow logs per region	Quotas vary by your account type and service level. You can go to the console to check your quotas.	No
Maximum number of mirror sessions per region	Quotas vary by your account type and service level. You can go to the console to check your quotas.	No