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.
- An extended network interface is created on the Network Interfaces console, and can be attached to or detached from an instance.
NIC
- Primary NIC
When you create an ECS, the NIC automatically created with the ECS is the primary NIC. The primary NIC cannot be unbound. It is preferentially used for the default route generally.
- Extension NIC
A NIC that can be separately added is an extension NIC, which can be bound to or unbound from an ECS.
Helpful Links
- Will NICs Added to an ECS Start Automatically?
- How Do I Change the CIDR Block of an ECS Subnet?
- How Can I Check Whether the Network Communication Is Normal Between Two ECSs Equipped with an InfiniBand NIC Driver?
- How Can I Manually Configure an IP Address for an InfiniBand NIC?
- Why Is the NIC Not Working?
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