Overview

VPC

Virtual Private Cloud (VPC) allows you to create customized virtual networks in your logically isolated AZ. Such networks are dedicated zones that are logically isolated, providing secure network environments for your ECSs. You can define security groups, virtual private networks (VPNs), IP address segments, and bandwidth for a VPC. This facilitates internal network configuration and management and allows you to change your network in a secure and convenient network manner. You can also customize the ECS access rules within a security group and between security groups to improve ECS security.

For more information about VPC, see Virtual Private Cloud User Guide.

Network Interface Types

• A primary network interface is created together with an instance by default, and cannot be detached from the instance.
• A supplementary network interface is created on the Network Interfaces console, and can be attached to or detached from an instance.

Notes and Constraints

• The number of supplementary network interfaces that can be attached to an ECS is determined by the ECS specifications. For details, see ECS Specifications.
• Supplementary network interfaces cannot be used to directly access Huawei Cloud services, such as DNS. You can use VPCEP to access these services. For details, see Buying a VPC Endpoint.

NIC